diff --git a/CMakeLists.txt b/CMakeLists.txt index 7f6ce4d..b91dbf9 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.1) project(googerteller VERSION 1.0 DESCRIPTION "Audible feedback on Google communications" - LANGUAGES CXX) + LANGUAGES CXX C) set(CMAKE_CXX_STANDARD 17 CACHE STRING "The C++ standard to use") @@ -20,7 +20,7 @@ set(CMAKE_CXX_EXTENSIONS ON) #target_include_directories(support PUBLIC ext/powerblog/ext/simplesocket ext/powerblog/ext ext/fmt-7.1.3/include/) #target_link_libraries(support PUBLIC -lh2o-evloop -lssl -lcrypto Threads::Threads) -add_executable(teller teller.cc ) +add_executable(teller teller.cc ext/lpm.c) target_link_libraries(teller -lpcaudio -lpthread) #enable_testing() diff --git a/README.md b/README.md index 966faf0..3c95cb9 100644 --- a/README.md +++ b/README.md @@ -5,7 +5,7 @@ Audible feedback on just how much your browsing feeds into Google. By bert@hubertnet.nl / https://berthub.eu/ Makes a little bit of noise any time your computer sends a packet to a -Google service, which excludes Google Cloud users. +tracker or a Google service, which excludes Google Cloud users. Demo video [in this tweet](https://twitter.com/bert_hu_bert/status/1561466204602220544) @@ -23,51 +23,9 @@ make ``` ## How to run -Google is so large its IPv4 and IPv6 footprint can't be handled by tcpdump, -or at least not efficiently. Therefore we need to define an ip(6)tables -`ipset`. This will first exclude Google Cloud, and then include all the -other Google IP addresses. - -Install iptables 'ipset', and run (as root) the `ipset-setup.sh` script, or -execute: - +Start as: ``` -ipset create google-services hash:net -for a in $(cat goog-cloud-prefixes.txt) -do -echo $a - ipset add google-services $a nomatch -done -for a in $(cat goog-prefixes.txt) -do - ipset add google-services $a -done - -ipset create google-services6 hash:net family inet6 -for a in $(cat goog-cloud-prefixes6.txt) -do - ipset add google-services6 $a nomatch -done - -for a in $(cat goog-prefixes6.txt) -do - ipset add google-services6 $a -done -iptables -I OUTPUT -m set --match-set google-services dst -j NFLOG --nflog-group 20 --nflog-threshold 1 -ip6tables -I OUTPUT -m set --match-set google-services6 dst -j NFLOG --nflog-group 20 --nflog-threshold 1 -``` - -Then start as: -``` -sudo tcpdump -i nflog:20 -ln | ./teller -``` - -Or, to track a single process, fe `firefox`, start it and run: - -```shell -sudo bpftrace netsendmsg.bt | - grep --line-buffered ^$(pgrep firefox) | - stdbuf -oL cut -f2 | ./cidr.py | ./teller +sudo tcpdump -nql | ./teller ``` And cry. @@ -80,3 +38,15 @@ Note that this splits out Google services and Google cloud user IP addresses. However, it appears the Google services set includes the cloud IP addresses, so you must check both sets before determining something is in fact a Google service and not a Google customer. + +# To run on a single process on Linux + +Or, to track a single process, fe `firefox`, start it and run: + +```shell +sudo bpftrace netsendmsg.bt | + grep --line-buffered ^$(pgrep firefox) | + stdbuf -oL cut -f2 | ./cidr.py | ./teller +``` + +And cry. diff --git a/ext/lpm.c b/ext/lpm.c new file mode 100644 index 0000000..34419ed --- /dev/null +++ b/ext/lpm.c @@ -0,0 +1,420 @@ +/* + * Copyright (c) 2016 Mindaugas Rasiukevicius + * All rights reserved. + * + * Use is subject to license terms, as specified in the LICENSE file. + */ + +/* + * Longest Prefix Match (LPM) library supporting IPv4 and IPv6. + * + * Algorithm: + * + * Each prefix gets its own hash map and all added prefixes are saved + * in a bitmap. On a lookup, we perform a linear scan of hash maps, + * iterating through the added prefixes only. Usually, there are only + * a few unique prefixes used and such simple algorithm is very efficient. + * With many IPv6 prefixes, the linear scan might become a bottleneck. + */ + +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "lpm.h" + +#define LPM_MAX_PREFIX (128) +#define LPM_MAX_WORDS (LPM_MAX_PREFIX >> 5) +#define LPM_TO_WORDS(x) ((x) >> 2) +#define LPM_HASH_STEP (8) +#define LPM_LEN_IDX(len) ((len) >> 4) + +#ifdef DEBUG +#define ASSERT assert +#else +#define ASSERT(x) +#endif + +typedef struct lpm_ent { + struct lpm_ent *next; + void * val; + unsigned len; + uint8_t key[]; +} lpm_ent_t; + +typedef struct { + unsigned hashsize; + unsigned nitems; + lpm_ent_t ** bucket; +} lpm_hmap_t; + +struct lpm { + uint32_t bitmask[LPM_MAX_WORDS]; + void * defvals[2]; + lpm_hmap_t prefix[LPM_MAX_PREFIX + 1]; +}; + +static const uint32_t zero_address[LPM_MAX_WORDS]; + +lpm_t * +lpm_create(void) +{ + lpm_t *lpm; + + if ((lpm = calloc(1, sizeof(lpm_t))) == NULL) { + return NULL; + } + return lpm; +} + +void +lpm_clear(lpm_t *lpm, lpm_dtor_t dtor, void *arg) +{ + for (unsigned n = 0; n <= LPM_MAX_PREFIX; n++) { + lpm_hmap_t *hmap = &lpm->prefix[n]; + + if (!hmap->hashsize) { + ASSERT(!hmap->bucket); + continue; + } + for (unsigned i = 0; i < hmap->hashsize; i++) { + lpm_ent_t *entry = hmap->bucket[i]; + + while (entry) { + lpm_ent_t *next = entry->next; + + if (dtor) { + dtor(arg, entry->key, + entry->len, entry->val); + } + free(entry); + entry = next; + } + } + free(hmap->bucket); + hmap->bucket = NULL; + hmap->hashsize = 0; + hmap->nitems = 0; + } + if (dtor) { + dtor(arg, zero_address, 4, lpm->defvals[0]); + dtor(arg, zero_address, 16, lpm->defvals[1]); + } + memset(lpm->bitmask, 0, sizeof(lpm->bitmask)); + memset(lpm->defvals, 0, sizeof(lpm->defvals)); +} + +void +lpm_destroy(lpm_t *lpm) +{ + lpm_clear(lpm, NULL, NULL); + free(lpm); +} + +/* + * fnv1a_hash: Fowler-Noll-Vo hash function (FNV-1a variant). + */ +static uint32_t +fnv1a_hash(const void *buf, size_t len) +{ + uint32_t hash = 2166136261UL; + const uint8_t *p = buf; + + while (len--) { + hash ^= *p++; + hash *= 16777619U; + } + return hash; +} + +static bool +hashmap_rehash(lpm_hmap_t *hmap, unsigned size) +{ + lpm_ent_t **bucket; + unsigned hashsize; + + for (hashsize = 1; hashsize < size; hashsize <<= 1) { + continue; + } + if ((bucket = calloc(1, hashsize * sizeof(lpm_ent_t *))) == NULL) { + return false; + } + for (unsigned n = 0; n < hmap->hashsize; n++) { + lpm_ent_t *list = hmap->bucket[n]; + + while (list) { + lpm_ent_t *entry = list; + uint32_t hash = fnv1a_hash(entry->key, entry->len); + const unsigned i = hash & (hashsize - 1); + + list = entry->next; + entry->next = bucket[i]; + bucket[i] = entry; + } + } + hmap->hashsize = hashsize; + free(hmap->bucket); // may be NULL + hmap->bucket = bucket; + return true; +} + +static lpm_ent_t * +hashmap_insert(lpm_hmap_t *hmap, const void *key, size_t len) +{ + const unsigned target = hmap->nitems + LPM_HASH_STEP; + const size_t entlen = offsetof(lpm_ent_t, key[len]); + uint32_t hash, i; + lpm_ent_t *entry; + + if (hmap->hashsize < target && !hashmap_rehash(hmap, target)) { + return NULL; + } + + hash = fnv1a_hash(key, len); + i = hash & (hmap->hashsize - 1); + entry = hmap->bucket[i]; + while (entry) { + if (entry->len == len && memcmp(entry->key, key, len) == 0) { + return entry; + } + entry = entry->next; + } + + if ((entry = malloc(entlen)) != NULL) { + memcpy(entry->key, key, len); + entry->next = hmap->bucket[i]; + entry->len = len; + + hmap->bucket[i] = entry; + hmap->nitems++; + } + return entry; +} + +static lpm_ent_t * +hashmap_lookup(lpm_hmap_t *hmap, const void *key, size_t len) +{ + const uint32_t hash = fnv1a_hash(key, len); + const unsigned i = hash & (hmap->hashsize - 1); + lpm_ent_t *entry; + + if (hmap->hashsize == 0) { + return NULL; + } + entry = hmap->bucket[i]; + + while (entry) { + if (entry->len == len && memcmp(entry->key, key, len) == 0) { + return entry; + } + entry = entry->next; + } + return NULL; +} + +static int +hashmap_remove(lpm_hmap_t *hmap, const void *key, size_t len) +{ + const uint32_t hash = fnv1a_hash(key, len); + const unsigned i = hash & (hmap->hashsize - 1); + lpm_ent_t *prev = NULL, *entry; + + if (hmap->hashsize == 0) { + return -1; + } + entry = hmap->bucket[i]; + + while (entry) { + if (entry->len == len && memcmp(entry->key, key, len) == 0) { + if (prev) { + prev->next = entry->next; + } else { + hmap->bucket[i] = entry->next; + } + free(entry); + return 0; + } + prev = entry; + entry = entry->next; + } + return -1; +} + +/* + * compute_prefix: given the address and prefix length, compute and + * return the address prefix. + */ +static inline void +compute_prefix(const unsigned nwords, const uint32_t *addr, + unsigned preflen, uint32_t *prefix) +{ + uint32_t addr2[4]; + + if ((uintptr_t)addr & 3) { + /* Unaligned address: just copy for now. */ + memcpy(addr2, addr, nwords * 4); + addr = addr2; + } + for (unsigned i = 0; i < nwords; i++) { + if (preflen == 0) { + prefix[i] = 0; + continue; + } + if (preflen < 32) { + uint32_t mask = htonl(0xffffffff << (32 - preflen)); + prefix[i] = addr[i] & mask; + preflen = 0; + } else { + prefix[i] = addr[i]; + preflen -= 32; + } + } +} + +/* + * lpm_insert: insert the CIDR into the LPM table. + * + * => Returns zero on success and -1 on failure. + */ +int +lpm_insert(lpm_t *lpm, const void *addr, + size_t len, unsigned preflen, void *val) +{ + const unsigned nwords = LPM_TO_WORDS(len); + uint32_t prefix[nwords]; + lpm_ent_t *entry; + ASSERT(len == 4 || len == 16); + + if (preflen == 0) { + /* 0-length prefix is a special case. */ + lpm->defvals[LPM_LEN_IDX(len)] = val; + return 0; + } + compute_prefix(nwords, addr, preflen, prefix); + entry = hashmap_insert(&lpm->prefix[preflen], prefix, len); + if (entry) { + const unsigned n = --preflen >> 5; + lpm->bitmask[n] |= 0x80000000U >> (preflen & 31); + entry->val = val; + return 0; + } + return -1; +} + +/* + * lpm_remove: remove the specified prefix. + */ +int +lpm_remove(lpm_t *lpm, const void *addr, size_t len, unsigned preflen) +{ + const unsigned nwords = LPM_TO_WORDS(len); + uint32_t prefix[nwords]; + ASSERT(len == 4 || len == 16); + + if (preflen == 0) { + lpm->defvals[LPM_LEN_IDX(len)] = NULL; + return 0; + } + compute_prefix(nwords, addr, preflen, prefix); + return hashmap_remove(&lpm->prefix[preflen], prefix, len); +} + +/* + * lpm_lookup: find the longest matching prefix given the IP address. + * + * => Returns the associated value on success or NULL on failure. + */ +void * +lpm_lookup(lpm_t *lpm, const void *addr, size_t len) +{ + const unsigned nwords = LPM_TO_WORDS(len); + unsigned i, n = nwords; + uint32_t prefix[nwords]; + + while (n--) { + uint32_t bitmask = lpm->bitmask[n]; + + while ((i = ffs(bitmask)) != 0) { + const unsigned preflen = (32 * n) + (32 - --i); + lpm_hmap_t *hmap = &lpm->prefix[preflen]; + lpm_ent_t *entry; + + compute_prefix(nwords, addr, preflen, prefix); + entry = hashmap_lookup(hmap, prefix, len); + if (entry) { + return entry->val; + } + bitmask &= ~(1U << i); + } + } + return lpm->defvals[LPM_LEN_IDX(len)]; +} + +/* + * lpm_lookup_prefix: return the value associated with a prefix + * + * => Returns the associated value on success or NULL on failure. + */ +void * +lpm_lookup_prefix(lpm_t *lpm, const void *addr, size_t len, unsigned preflen) +{ + const unsigned nwords = LPM_TO_WORDS(len); + uint32_t prefix[nwords]; + lpm_ent_t *entry; + ASSERT(len == 4 || len == 16); + + if (preflen == 0) { + return lpm->defvals[LPM_LEN_IDX(len)]; + } + compute_prefix(nwords, addr, preflen, prefix); + entry = hashmap_lookup(&lpm->prefix[preflen], prefix, len); + if (entry) { + return entry->val; + } + return NULL; +} + +/* + * lpm_strtobin: convert CIDR string to the binary IP address and mask. + * + * => The address will be in the network byte order. + * => Returns 0 on success or -1 on failure. + */ +int +lpm_strtobin(const char *cidr, void *addr, size_t *len, unsigned *preflen) +{ + char *p, buf[INET6_ADDRSTRLEN]; + + strncpy(buf, cidr, sizeof(buf)); + buf[sizeof(buf) - 1] = '\0'; + + if ((p = strchr(buf, '/')) != NULL) { + const ptrdiff_t off = p - buf; + *preflen = atoi(&buf[off + 1]); + buf[off] = '\0'; + } else { + *preflen = LPM_MAX_PREFIX; + } + + if (inet_pton(AF_INET6, buf, addr) == 1) { + *len = 16; + return 0; + } + if (inet_pton(AF_INET, buf, addr) == 1) { + if (*preflen == LPM_MAX_PREFIX) { + *preflen = 32; + } + *len = 4; + return 0; + } + return -1; +} diff --git a/ext/lpm.h b/ext/lpm.h new file mode 100644 index 0000000..cdd5e99 --- /dev/null +++ b/ext/lpm.h @@ -0,0 +1,28 @@ +/* + * Copyright (c) 2016 Mindaugas Rasiukevicius + * All rights reserved. + * + * Use is subject to license terms, as specified in the LICENSE file. + */ + +#ifndef _LPM_H_ +#define _LPM_H_ + +__BEGIN_DECLS + +typedef struct lpm lpm_t; +typedef void (*lpm_dtor_t)(void *, const void *, size_t, void *); + +lpm_t * lpm_create(void); +void lpm_destroy(lpm_t *); +void lpm_clear(lpm_t *, lpm_dtor_t, void *); + +int lpm_insert(lpm_t *, const void *, size_t, unsigned, void *); +int lpm_remove(lpm_t *, const void *, size_t, unsigned); +void * lpm_lookup(lpm_t *, const void *, size_t); +void * lpm_lookup_prefix(lpm_t *, const void *, size_t, unsigned); +int lpm_strtobin(const char *, void *, size_t *, unsigned *); + +__END_DECLS + +#endif diff --git a/ext/toml.hpp b/ext/toml.hpp new file mode 100644 index 0000000..83ea245 --- /dev/null +++ b/ext/toml.hpp @@ -0,0 +1,17169 @@ +//---------------------------------------------------------------------------------------------------------------------- +// +// toml++ v3.1.0 +// https://github.com/marzer/tomlplusplus +// SPDX-License-Identifier: MIT +// +//---------------------------------------------------------------------------------------------------------------------- +// +// - THIS FILE WAS ASSEMBLED FROM MULTIPLE HEADER FILES BY A SCRIPT - PLEASE DON'T EDIT IT DIRECTLY - +// +// If you wish to submit a contribution to toml++, hooray and thanks! Before you crack on, please be aware that this +// file was assembled from a number of smaller files by a python script, and code contributions should not be made +// against it directly. You should instead make your changes in the relevant source file(s). The file names of the files +// that contributed to this header can be found at the beginnings and ends of the corresponding sections of this file. +// +//---------------------------------------------------------------------------------------------------------------------- +// +// TOML Language Specifications: +// latest: https://github.com/toml-lang/toml/blob/master/README.md +// v1.0.0: https://toml.io/en/v1.0.0 +// v0.5.0: https://toml.io/en/v0.5.0 +// changelog: https://github.com/toml-lang/toml/blob/master/CHANGELOG.md +// +//---------------------------------------------------------------------------------------------------------------------- +// +// MIT License +// +// Copyright (c) Mark Gillard +// +// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated +// documentation files (the "Software"), to deal in the Software without restriction, including without limitation the +// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to +// permit persons to whom the Software is furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the +// Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE +// WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR +// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +// +//---------------------------------------------------------------------------------------------------------------------- +#ifndef TOMLPLUSPLUS_H +#define TOMLPLUSPLUS_H + +#define INCLUDE_TOMLPLUSPLUS_H // old guard name used pre-v3 + +//******** impl/preprocessor.h *************************************************************************************** + +#ifndef __cplusplus +#error toml++ is a C++ library. +#endif +#ifdef _MSVC_LANG +#define TOML_CPP _MSVC_LANG +#else +#define TOML_CPP __cplusplus +#endif +#if TOML_CPP >= 202002L +#undef TOML_CPP +#define TOML_CPP 20 +#elif TOML_CPP >= 201703L +#undef TOML_CPP +#define TOML_CPP 17 +#else +#if TOML_CPP < 201103L +#error toml++ requires C++17 or higher. For a pre-C++11 TOML library see https://github.com/ToruNiina/Boost.toml +#elif TOML_CPP < 201703L +#error toml++ requires C++17 or higher. For a C++11 TOML library see https://github.com/ToruNiina/toml11 +#endif +#endif + +#ifdef __clang__ +#define TOML_CLANG __clang_major__ +#else +#define TOML_CLANG 0 +#endif +#ifdef __INTEL_COMPILER +#define TOML_ICC __INTEL_COMPILER +#ifdef __ICL +#define TOML_ICC_CL TOML_ICC +#else +#define TOML_ICC_CL 0 +#endif +#else +#define TOML_ICC 0 +#define TOML_ICC_CL 0 +#endif +#if defined(_MSC_VER) && !TOML_CLANG && !TOML_ICC +#define TOML_MSVC _MSC_VER +#else +#define TOML_MSVC 0 +#endif +#if defined(__GNUC__) && !TOML_CLANG && !TOML_ICC +#define TOML_GCC __GNUC__ +#else +#define TOML_GCC 0 +#endif +#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__NT__) || defined(__CYGWIN__) +#define TOML_WINDOWS 1 +#else +#define TOML_WINDOWS 0 +#endif +#if defined(DOXYGEN) || defined(__DOXYGEN__) || defined(__POXY__) || defined(__poxy__) +#define TOML_DOXYGEN 1 +#else +#define TOML_DOXYGEN 0 +#endif +#ifdef __INTELLISENSE__ +#define TOML_INTELLISENSE 1 +#else +#define TOML_INTELLISENSE 0 +#endif +#if defined(__aarch64__) || defined(__ARM_ARCH_ISA_A64) || defined(_M_ARM64) || defined(__ARM_64BIT_STATE) \ + || defined(__arm__) || defined(_M_ARM) || defined(__ARM_32BIT_STATE) +#define TOML_ARM 1 +#else +#define TOML_ARM 0 +#endif + +// TOML_HAS_INCLUDE +#ifdef __has_include +#define TOML_HAS_INCLUDE(header) __has_include(header) +#else +#define TOML_HAS_INCLUDE(header) 0 +#endif + +#ifdef __has_builtin +#define TOML_HAS_BUILTIN(name) __has_builtin(name) +#else +#define TOML_HAS_BUILTIN(name) 0 +#endif + +// TOML_HAS_FEATURE +#ifdef __has_feature +#define TOML_HAS_FEATURE(name) __has_feature(name) +#else +#define TOML_HAS_FEATURE(name) 0 +#endif + +// TOML_HAS_ATTR +#ifdef __has_attribute +#define TOML_HAS_ATTR(attr) __has_attribute(attr) +#else +#define TOML_HAS_ATTR(attr) 0 +#endif + +// TOML_HAS_CPP_ATTR +#ifdef __has_cpp_attribute +#define TOML_HAS_CPP_ATTR(attr) __has_cpp_attribute(attr) +#else +#define TOML_HAS_CPP_ATTR(attr) 0 +#endif + +// TOML_COMPILER_HAS_EXCEPTIONS +#if defined(__EXCEPTIONS) || defined(_CPPUNWIND) || defined(__cpp_exceptions) +#define TOML_COMPILER_HAS_EXCEPTIONS 1 +#else +#define TOML_COMPILER_HAS_EXCEPTIONS 0 +#endif + +// TOML_COMPILER_HAS_RTTI +#if defined(_CPPRTTI) || defined(__GXX_RTTI) || TOML_HAS_FEATURE(cxx_rtti) +#define TOML_COMPILER_HAS_RTTI 1 +#else +#define TOML_COMPILER_HAS_RTTI 0 +#endif + +// TOML_ATTR (gnu attributes) +#if TOML_CLANG || TOML_GCC || defined(__GNUC__) +#define TOML_ATTR(...) __attribute__((__VA_ARGS__)) +#else +#define TOML_ATTR(...) +#endif + +// TOML_DECLSPEC (msvc attributes) +#ifdef _MSC_VER +#define TOML_DECLSPEC(...) __declspec(__VA_ARGS__) +#else +#define TOML_DECLSPEC(...) +#endif + +// TOML_CONCAT +#define TOML_CONCAT_1(x, y) x##y +#define TOML_CONCAT(x, y) TOML_CONCAT_1(x, y) + +// TOML_MAKE_STRING +#define TOML_MAKE_STRING_1(s) #s +#define TOML_MAKE_STRING(s) TOML_MAKE_STRING_1(s) + +// TOML_PRAGMA_XXXX (compiler-specific pragmas) +#if TOML_CLANG +#define TOML_PRAGMA_CLANG(decl) _Pragma(TOML_MAKE_STRING(clang decl)) +#else +#define TOML_PRAGMA_CLANG(decl) +#endif +#if TOML_CLANG >= 9 +#define TOML_PRAGMA_CLANG_GE_9(decl) TOML_PRAGMA_CLANG(decl) +#else +#define TOML_PRAGMA_CLANG_GE_9(decl) +#endif +#if TOML_CLANG >= 10 +#define TOML_PRAGMA_CLANG_GE_10(decl) TOML_PRAGMA_CLANG(decl) +#else +#define TOML_PRAGMA_CLANG_GE_10(decl) +#endif +#if TOML_CLANG >= 11 +#define TOML_PRAGMA_CLANG_GE_11(decl) TOML_PRAGMA_CLANG(decl) +#else +#define TOML_PRAGMA_CLANG_GE_11(decl) +#endif +#if TOML_GCC +#define TOML_PRAGMA_GCC(decl) _Pragma(TOML_MAKE_STRING(GCC decl)) +#else +#define TOML_PRAGMA_GCC(decl) +#endif +#if TOML_MSVC +#define TOML_PRAGMA_MSVC(...) __pragma(__VA_ARGS__) +#else +#define TOML_PRAGMA_MSVC(...) +#endif +#if TOML_ICC +#define TOML_PRAGMA_ICC(...) __pragma(__VA_ARGS__) +#else +#define TOML_PRAGMA_ICC(...) +#endif + +// TOML_ALWAYS_INLINE +#ifdef _MSC_VER +#define TOML_ALWAYS_INLINE __forceinline +#elif TOML_GCC || TOML_CLANG || TOML_HAS_ATTR(__always_inline__) +#define TOML_ALWAYS_INLINE \ + TOML_ATTR(__always_inline__) \ + inline +#else +#define TOML_ALWAYS_INLINE inline +#endif + +// TOML_NEVER_INLINE +#ifdef _MSC_VER +#define TOML_NEVER_INLINE TOML_DECLSPEC(noinline) +#elif TOML_GCC || TOML_CLANG || TOML_HAS_ATTR(__noinline__) +#define TOML_NEVER_INLINE TOML_ATTR(__noinline__) +#else +#define TOML_NEVER_INLINE +#endif + +// MSVC attributes +#define TOML_ABSTRACT_INTERFACE TOML_DECLSPEC(novtable) +#define TOML_EMPTY_BASES TOML_DECLSPEC(empty_bases) + +// TOML_TRIVIAL_ABI +#if TOML_CLANG || TOML_HAS_ATTR(__trivial_abi__) +#define TOML_TRIVIAL_ABI TOML_ATTR(__trivial_abi__) +#else +#define TOML_TRIVIAL_ABI +#endif + +// TOML_NODISCARD +#if TOML_CPP >= 17 && TOML_HAS_CPP_ATTR(nodiscard) >= 201603 +#define TOML_NODISCARD [[nodiscard]] +#elif TOML_CLANG || TOML_GCC || TOML_HAS_ATTR(__warn_unused_result__) +#define TOML_NODISCARD TOML_ATTR(__warn_unused_result__) +#else +#define TOML_NODISCARD +#endif + +// TOML_NODISCARD_CTOR +#if TOML_CPP >= 17 && TOML_HAS_CPP_ATTR(nodiscard) >= 201907 +#define TOML_NODISCARD_CTOR [[nodiscard]] +#else +#define TOML_NODISCARD_CTOR +#endif + +// pure + const +// clang-format off +#ifdef NDEBUG + #define TOML_PURE TOML_DECLSPEC(noalias) TOML_ATTR(__pure__) + #define TOML_CONST TOML_DECLSPEC(noalias) TOML_ATTR(__const__) + #define TOML_PURE_GETTER TOML_NODISCARD TOML_PURE + #define TOML_CONST_GETTER TOML_NODISCARD TOML_CONST + #define TOML_PURE_INLINE_GETTER TOML_NODISCARD TOML_ALWAYS_INLINE TOML_PURE + #define TOML_CONST_INLINE_GETTER TOML_NODISCARD TOML_ALWAYS_INLINE TOML_CONST +#else + #define TOML_PURE + #define TOML_CONST + #define TOML_PURE_GETTER TOML_NODISCARD + #define TOML_CONST_GETTER TOML_NODISCARD + #define TOML_PURE_INLINE_GETTER TOML_NODISCARD TOML_ALWAYS_INLINE + #define TOML_CONST_INLINE_GETTER TOML_NODISCARD TOML_ALWAYS_INLINE +#endif +// clang-format on + +// TOML_ASSUME +#ifdef _MSC_VER +#define TOML_ASSUME(...) __assume(__VA_ARGS__) +#elif TOML_ICC || TOML_CLANG || TOML_HAS_BUILTIN(__builtin_assume) +#define TOML_ASSUME(...) __builtin_assume(__VA_ARGS__) +#else +#define TOML_ASSUME(...) static_assert(true) +#endif + +// TOML_UNREACHABLE +#ifdef _MSC_VER +#define TOML_UNREACHABLE __assume(0) +#elif TOML_ICC || TOML_CLANG || TOML_GCC || TOML_HAS_BUILTIN(__builtin_unreachable) +#define TOML_UNREACHABLE __builtin_unreachable() +#else +#define TOML_UNREACHABLE static_assert(true) +#endif + +// TOML_LIKELY +#if TOML_CPP >= 20 && TOML_HAS_CPP_ATTR(likely) >= 201803 +#define TOML_LIKELY(...) (__VA_ARGS__) [[likely]] +#define TOML_LIKELY_CASE [[likely]] +#elif TOML_GCC || TOML_CLANG || TOML_HAS_BUILTIN(__builtin_expect) +#define TOML_LIKELY(...) (__builtin_expect(!!(__VA_ARGS__), 1)) +#else +#define TOML_LIKELY(...) (__VA_ARGS__) +#endif +#ifndef TOML_LIKELY_CASE +#define TOML_LIKELY_CASE +#endif + +// TOML_UNLIKELY +#if TOML_CPP >= 20 && TOML_HAS_CPP_ATTR(unlikely) >= 201803 +#define TOML_UNLIKELY(...) (__VA_ARGS__) [[unlikely]] +#define TOML_UNLIKELY_CASE [[unlikely]] +#elif TOML_GCC || TOML_CLANG || TOML_HAS_BUILTIN(__builtin_expect) +#define TOML_UNLIKELY(...) (__builtin_expect(!!(__VA_ARGS__), 0)) +#else +#define TOML_UNLIKELY(...) (__VA_ARGS__) +#endif +#ifndef TOML_UNLIKELY_CASE +#define TOML_UNLIKELY_CASE +#endif + +// TOML_FLAGS_ENUM +#if TOML_CLANG || TOML_HAS_ATTR(flag_enum) +#define TOML_FLAGS_ENUM __attribute__((flag_enum)) +#else +#define TOML_FLAGS_ENUM +#endif + +// TOML_OPEN_ENUM + TOML_CLOSED_ENUM +#if TOML_CLANG || TOML_HAS_ATTR(enum_extensibility) +#define TOML_OPEN_ENUM __attribute__((enum_extensibility(open))) +#define TOML_CLOSED_ENUM __attribute__((enum_extensibility(closed))) +#else +#define TOML_OPEN_ENUM +#define TOML_CLOSED_ENUM +#endif + +// TOML_OPEN_FLAGS_ENUM + TOML_CLOSED_FLAGS_ENUM +#define TOML_OPEN_FLAGS_ENUM TOML_OPEN_ENUM TOML_FLAGS_ENUM +#define TOML_CLOSED_FLAGS_ENUM TOML_CLOSED_ENUM TOML_FLAGS_ENUM + +// TOML_MAKE_FLAGS +#define TOML_MAKE_FLAGS_2(T, op, linkage) \ + TOML_CONST_INLINE_GETTER \ + linkage constexpr T operator op(T lhs, T rhs) noexcept \ + { \ + using under = std::underlying_type_t; \ + return static_cast(static_cast(lhs) op static_cast(rhs)); \ + } \ + \ + linkage constexpr T& operator TOML_CONCAT(op, =)(T & lhs, T rhs) noexcept \ + { \ + return lhs = (lhs op rhs); \ + } \ + \ + static_assert(true) +#define TOML_MAKE_FLAGS_1(T, linkage) \ + static_assert(std::is_enum_v); \ + \ + TOML_MAKE_FLAGS_2(T, &, linkage); \ + TOML_MAKE_FLAGS_2(T, |, linkage); \ + TOML_MAKE_FLAGS_2(T, ^, linkage); \ + \ + TOML_CONST_INLINE_GETTER \ + linkage constexpr T operator~(T val) noexcept \ + { \ + using under = std::underlying_type_t; \ + return static_cast(~static_cast(val)); \ + } \ + \ + TOML_CONST_INLINE_GETTER \ + linkage constexpr bool operator!(T val) noexcept \ + { \ + using under = std::underlying_type_t; \ + return !static_cast(val); \ + } \ + \ + static_assert(true) +#define TOML_MAKE_FLAGS(T) TOML_MAKE_FLAGS_1(T, ) + +#define TOML_UNUSED(...) static_cast(__VA_ARGS__) + +#define TOML_DELETE_DEFAULTS(T) \ + T(const T&) = delete; \ + T(T&&) = delete; \ + T& operator=(const T&) = delete; \ + T& operator=(T&&) = delete + +#define TOML_ASYMMETRICAL_EQUALITY_OPS(LHS, RHS, ...) \ + __VA_ARGS__ TOML_NODISCARD \ + friend bool operator==(RHS rhs, LHS lhs) noexcept \ + { \ + return lhs == rhs; \ + } \ + __VA_ARGS__ TOML_NODISCARD \ + friend bool operator!=(LHS lhs, RHS rhs) noexcept \ + { \ + return !(lhs == rhs); \ + } \ + __VA_ARGS__ TOML_NODISCARD \ + friend bool operator!=(RHS rhs, LHS lhs) noexcept \ + { \ + return !(lhs == rhs); \ + } \ + static_assert(true) + +#define TOML_EVAL_BOOL_1(T, F) T +#define TOML_EVAL_BOOL_0(T, F) F + +#if !defined(__POXY__) && !defined(POXY_IMPLEMENTATION_DETAIL) +#define POXY_IMPLEMENTATION_DETAIL(...) __VA_ARGS__ +#endif + +// COMPILER-SPECIFIC WARNING MANAGEMENT + +#if TOML_CLANG + +#define TOML_PUSH_WARNINGS \ + TOML_PRAGMA_CLANG(diagnostic push) \ + static_assert(true) + +#define TOML_DISABLE_SWITCH_WARNINGS \ + TOML_PRAGMA_CLANG(diagnostic ignored "-Wswitch") \ + static_assert(true) + +#define TOML_DISABLE_ARITHMETIC_WARNINGS \ + TOML_PRAGMA_CLANG(diagnostic ignored "-Wfloat-equal") \ + TOML_PRAGMA_CLANG(diagnostic ignored "-Wdouble-promotion") \ + TOML_PRAGMA_CLANG(diagnostic ignored "-Wchar-subscripts") \ + TOML_PRAGMA_CLANG(diagnostic ignored "-Wshift-sign-overflow") \ + static_assert(true) + +#define TOML_DISABLE_SPAM_WARNINGS \ + TOML_PRAGMA_CLANG_GE_9(diagnostic ignored "-Wctad-maybe-unsupported") \ + TOML_PRAGMA_CLANG_GE_10(diagnostic ignored "-Wzero-as-null-pointer-constant") \ + TOML_PRAGMA_CLANG_GE_11(diagnostic ignored "-Wsuggest-destructor-override") \ + TOML_PRAGMA_CLANG(diagnostic ignored "-Wweak-vtables") \ + TOML_PRAGMA_CLANG(diagnostic ignored "-Wweak-template-vtables") \ + TOML_PRAGMA_CLANG(diagnostic ignored "-Wdouble-promotion") \ + TOML_PRAGMA_CLANG(diagnostic ignored "-Wchar-subscripts") \ + TOML_PRAGMA_CLANG(diagnostic ignored "-Wmissing-field-initializers") \ + TOML_PRAGMA_CLANG(diagnostic ignored "-Wpadded") \ + static_assert(true) + +#define TOML_POP_WARNINGS \ + TOML_PRAGMA_CLANG(diagnostic pop) \ + static_assert(true) + +#define TOML_DISABLE_WARNINGS \ + TOML_PRAGMA_CLANG(diagnostic push) \ + TOML_PRAGMA_CLANG(diagnostic ignored "-Weverything") \ + static_assert(true, "") + +#define TOML_ENABLE_WARNINGS \ + TOML_PRAGMA_CLANG(diagnostic pop) \ + static_assert(true) + +#define TOML_SIMPLE_STATIC_ASSERT_MESSAGES 1 + +#elif TOML_MSVC + +#define TOML_PUSH_WARNINGS \ + __pragma(warning(push)) \ + static_assert(true) + +#if TOML_HAS_INCLUDE() +#pragma warning(push, 0) +#include +#pragma warning(pop) +#define TOML_DISABLE_CODE_ANALYSIS_WARNINGS \ + __pragma(warning(disable : ALL_CODE_ANALYSIS_WARNINGS)) \ + static_assert(true) +#else +#define TOML_DISABLE_CODE_ANALYSIS_WARNINGS static_assert(true) +#endif + +#define TOML_DISABLE_SWITCH_WARNINGS \ + __pragma(warning(disable : 4061)) \ + __pragma(warning(disable : 4062)) \ + __pragma(warning(disable : 4063)) \ + __pragma(warning(disable : 26819)) /* cg: unannotated fallthrough */ \ + static_assert(true) + +#define TOML_DISABLE_SPAM_WARNINGS \ + __pragma(warning(disable : 4127)) /* conditional expr is constant */ \ + __pragma(warning(disable : 4324)) /* structure was padded due to alignment specifier */ \ + __pragma(warning(disable : 4348)) \ + __pragma(warning(disable : 4464)) /* relative include path contains '..' */ \ + __pragma(warning(disable : 4505)) /* unreferenced local function removed */ \ + __pragma(warning(disable : 4514)) /* unreferenced inline function has been removed */ \ + __pragma(warning(disable : 4582)) /* constructor is not implicitly called */ \ + __pragma(warning(disable : 4623)) /* default constructor was implicitly defined as deleted */ \ + __pragma(warning(disable : 4625)) /* copy constructor was implicitly defined as deleted */ \ + __pragma(warning(disable : 4626)) /* assignment operator was implicitly defined as deleted */ \ + __pragma(warning(disable : 4710)) /* function not inlined */ \ + __pragma(warning(disable : 4711)) /* function selected for automatic expansion */ \ + __pragma(warning(disable : 4820)) /* N bytes padding added */ \ + __pragma(warning(disable : 4946)) /* reinterpret_cast used between related classes */ \ + __pragma(warning(disable : 5026)) /* move constructor was implicitly defined as deleted */ \ + __pragma(warning(disable : 5027)) /* move assignment operator was implicitly defined as deleted */ \ + __pragma(warning(disable : 5039)) /* potentially throwing function passed to 'extern "C"' function */ \ + __pragma(warning(disable : 5045)) /* Compiler will insert Spectre mitigation */ \ + __pragma(warning(disable : 26451)) \ + __pragma(warning(disable : 26490)) \ + __pragma(warning(disable : 26495)) \ + __pragma(warning(disable : 26812)) \ + __pragma(warning(disable : 26819)) \ + static_assert(true) + +#define TOML_DISABLE_ARITHMETIC_WARNINGS \ + __pragma(warning(disable : 4365)) /* argument signed/unsigned mismatch */ \ + __pragma(warning(disable : 4738)) /* storing 32-bit float result in memory */ \ + __pragma(warning(disable : 5219)) /* implicit conversion from integral to float */ \ + static_assert(true) + +#define TOML_POP_WARNINGS \ + __pragma(warning(pop)) \ + static_assert(true) + +#define TOML_DISABLE_WARNINGS \ + __pragma(warning(push, 0)) \ + __pragma(warning(disable : 4348)) \ + __pragma(warning(disable : 4668)) \ + __pragma(warning(disable : 5105)) \ + TOML_DISABLE_CODE_ANALYSIS_WARNINGS; \ + TOML_DISABLE_SWITCH_WARNINGS; \ + TOML_DISABLE_SPAM_WARNINGS; \ + TOML_DISABLE_ARITHMETIC_WARNINGS; \ + static_assert(true) + +#define TOML_ENABLE_WARNINGS TOML_POP_WARNINGS + +#elif TOML_ICC + +#define TOML_PUSH_WARNINGS \ + __pragma(warning(push)) \ + static_assert(true) + +#define TOML_DISABLE_SPAM_WARNINGS \ + __pragma(warning(disable : 82)) /* storage class is not first */ \ + __pragma(warning(disable : 111)) /* statement unreachable (false-positive) */ \ + __pragma(warning(disable : 869)) /* unreferenced parameter */ \ + __pragma(warning(disable : 1011)) /* missing return (false-positive) */ \ + __pragma(warning(disable : 2261)) /* assume expr side-effects discarded */ \ + static_assert(true) + +#define TOML_POP_WARNINGS \ + __pragma(warning(pop)) \ + static_assert(true) + +#define TOML_DISABLE_WARNINGS \ + __pragma(warning(push, 0)) \ + TOML_DISABLE_SPAM_WARNINGS + +#define TOML_ENABLE_WARNINGS \ + __pragma(warning(pop)) \ + static_assert(true) + +#elif TOML_GCC + +#define TOML_PUSH_WARNINGS \ + TOML_PRAGMA_GCC(diagnostic push) \ + static_assert(true) + +#define TOML_DISABLE_SWITCH_WARNINGS \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wswitch") \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wswitch-enum") \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wswitch-default") \ + static_assert(true) + +#define TOML_DISABLE_ARITHMETIC_WARNINGS \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wfloat-equal") \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wsign-conversion") \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wchar-subscripts") \ + static_assert(true) + +#define TOML_DISABLE_SUGGEST_ATTR_WARNINGS \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wsuggest-attribute=const") \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wsuggest-attribute=pure") \ + static_assert(true) + +#define TOML_DISABLE_SPAM_WARNINGS \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wpadded") \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wcast-align") \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wcomment") \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wtype-limits") \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wuseless-cast") \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wchar-subscripts") \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wsubobject-linkage") \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wmissing-field-initializers") \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wmaybe-uninitialized") \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wnoexcept") \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wnull-dereference") \ + static_assert(true) + +#define TOML_POP_WARNINGS \ + TOML_PRAGMA_GCC(diagnostic pop) \ + static_assert(true) + +#define TOML_DISABLE_WARNINGS \ + TOML_PRAGMA_GCC(diagnostic push) \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wall") \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wextra") \ + TOML_PRAGMA_GCC(diagnostic ignored "-Wpedantic") \ + TOML_DISABLE_SWITCH_WARNINGS; \ + TOML_DISABLE_ARITHMETIC_WARNINGS; \ + TOML_DISABLE_SUGGEST_ATTR_WARNINGS; \ + TOML_DISABLE_SPAM_WARNINGS; \ + static_assert(true) + +#define TOML_ENABLE_WARNINGS \ + TOML_PRAGMA_GCC(diagnostic pop) \ + static_assert(true) + +#endif + +#ifndef TOML_PUSH_WARNINGS +#define TOML_PUSH_WARNINGS static_assert(true) +#endif +#ifndef TOML_DISABLE_CODE_ANALYSIS_WARNINGS +#define TOML_DISABLE_CODE_ANALYSIS_WARNINGS static_assert(true) +#endif +#ifndef TOML_DISABLE_SWITCH_WARNINGS +#define TOML_DISABLE_SWITCH_WARNINGS static_assert(true) +#endif +#ifndef TOML_DISABLE_SUGGEST_ATTR_WARNINGS +#define TOML_DISABLE_SUGGEST_ATTR_WARNINGS static_assert(true) +#endif +#ifndef TOML_DISABLE_SPAM_WARNINGS +#define TOML_DISABLE_SPAM_WARNINGS static_assert(true) +#endif +#ifndef TOML_DISABLE_ARITHMETIC_WARNINGS +#define TOML_DISABLE_ARITHMETIC_WARNINGS static_assert(true) +#endif +#ifndef TOML_POP_WARNINGS +#define TOML_POP_WARNINGS static_assert(true) +#endif +#ifndef TOML_DISABLE_WARNINGS +#define TOML_DISABLE_WARNINGS static_assert(true) +#endif +#ifndef TOML_ENABLE_WARNINGS +#define TOML_ENABLE_WARNINGS static_assert(true) +#endif +#ifndef TOML_SIMPLE_STATIC_ASSERT_MESSAGES +#define TOML_SIMPLE_STATIC_ASSERT_MESSAGES 0 +#endif + +#ifdef TOML_CONFIG_HEADER +#include TOML_CONFIG_HEADER +#endif + +// is the library being built as a shared lib/dll using meson and friends? +#ifndef TOML_SHARED_LIB +#define TOML_SHARED_LIB 0 +#endif + +// header-only mode +#if !defined(TOML_HEADER_ONLY) && defined(TOML_ALL_INLINE) // was TOML_ALL_INLINE pre-2.0 +#define TOML_HEADER_ONLY TOML_ALL_INLINE +#endif +#if !defined(TOML_HEADER_ONLY) || (defined(TOML_HEADER_ONLY) && TOML_HEADER_ONLY) || TOML_INTELLISENSE +#undef TOML_HEADER_ONLY +#define TOML_HEADER_ONLY 1 +#endif +#if TOML_DOXYGEN || TOML_SHARED_LIB +#undef TOML_HEADER_ONLY +#define TOML_HEADER_ONLY 0 +#endif + +// internal implementation switch +#if defined(TOML_IMPLEMENTATION) || TOML_HEADER_ONLY +#undef TOML_IMPLEMENTATION +#define TOML_IMPLEMENTATION 1 +#else +#define TOML_IMPLEMENTATION 0 +#endif + +// dll/shared lib function exports (legacy - TOML_API was the old name for this setting) +#if !defined(TOML_EXPORTED_MEMBER_FUNCTION) && !defined(TOML_EXPORTED_STATIC_FUNCTION) \ + && !defined(TOML_EXPORTED_FREE_FUNCTION) && !defined(TOML_EXPORTED_CLASS) && defined(TOML_API) +#define TOML_EXPORTED_MEMBER_FUNCTION TOML_API +#define TOML_EXPORTED_STATIC_FUNCTION TOML_API +#define TOML_EXPORTED_FREE_FUNCTION TOML_API +#endif + +// dll/shared lib exports +#if TOML_SHARED_LIB +#undef TOML_API +#undef TOML_EXPORTED_CLASS +#undef TOML_EXPORTED_MEMBER_FUNCTION +#undef TOML_EXPORTED_STATIC_FUNCTION +#undef TOML_EXPORTED_FREE_FUNCTION +#if TOML_WINDOWS +#if TOML_IMPLEMENTATION +#define TOML_EXPORTED_CLASS __declspec(dllexport) +#define TOML_EXPORTED_FREE_FUNCTION __declspec(dllexport) +#else +#define TOML_EXPORTED_CLASS __declspec(dllimport) +#define TOML_EXPORTED_FREE_FUNCTION __declspec(dllimport) +#endif +#ifndef TOML_CALLCONV +#define TOML_CALLCONV __cdecl +#endif +#elif defined(__GNUC__) && __GNUC__ >= 4 +#define TOML_EXPORTED_CLASS __attribute__((visibility("default"))) +#define TOML_EXPORTED_MEMBER_FUNCTION __attribute__((visibility("default"))) +#define TOML_EXPORTED_STATIC_FUNCTION __attribute__((visibility("default"))) +#define TOML_EXPORTED_FREE_FUNCTION __attribute__((visibility("default"))) +#endif +#endif +#ifndef TOML_EXPORTED_CLASS +#define TOML_EXPORTED_CLASS +#endif +#ifndef TOML_EXPORTED_MEMBER_FUNCTION +#define TOML_EXPORTED_MEMBER_FUNCTION +#endif +#ifndef TOML_EXPORTED_STATIC_FUNCTION +#define TOML_EXPORTED_STATIC_FUNCTION +#endif +#ifndef TOML_EXPORTED_FREE_FUNCTION +#define TOML_EXPORTED_FREE_FUNCTION +#endif + +// experimental language features +#if !defined(TOML_ENABLE_UNRELEASED_FEATURES) && defined(TOML_UNRELEASED_FEATURES) // was TOML_UNRELEASED_FEATURES + // pre-3.0 +#define TOML_ENABLE_UNRELEASED_FEATURES TOML_UNRELEASED_FEATURES +#endif +#if (defined(TOML_ENABLE_UNRELEASED_FEATURES) && TOML_ENABLE_UNRELEASED_FEATURES) || TOML_INTELLISENSE +#undef TOML_ENABLE_UNRELEASED_FEATURES +#define TOML_ENABLE_UNRELEASED_FEATURES 1 +#endif +#ifndef TOML_ENABLE_UNRELEASED_FEATURES +#define TOML_ENABLE_UNRELEASED_FEATURES 0 +#endif + +// parser +#if !defined(TOML_ENABLE_PARSER) && defined(TOML_PARSER) // was TOML_PARSER pre-3.0 +#define TOML_ENABLE_PARSER TOML_PARSER +#endif +#if !defined(TOML_ENABLE_PARSER) || (defined(TOML_ENABLE_PARSER) && TOML_ENABLE_PARSER) || TOML_INTELLISENSE +#undef TOML_ENABLE_PARSER +#define TOML_ENABLE_PARSER 1 +#endif + +// formatters +#if !defined(TOML_ENABLE_FORMATTERS) || (defined(TOML_ENABLE_FORMATTERS) && TOML_ENABLE_FORMATTERS) || TOML_INTELLISENSE +#undef TOML_ENABLE_FORMATTERS +#define TOML_ENABLE_FORMATTERS 1 +#endif + +// SIMD +#if !defined(TOML_ENABLE_SIMD) || (defined(TOML_ENABLE_SIMD) && TOML_ENABLE_SIMD) || TOML_INTELLISENSE +#undef TOML_ENABLE_SIMD +#define TOML_ENABLE_SIMD 1 +#endif + +// windows compat +#if !defined(TOML_ENABLE_WINDOWS_COMPAT) && defined(TOML_WINDOWS_COMPAT) // was TOML_WINDOWS_COMPAT pre-3.0 +#define TOML_ENABLE_WINDOWS_COMPAT TOML_WINDOWS_COMPAT +#endif +#if !defined(TOML_ENABLE_WINDOWS_COMPAT) || (defined(TOML_ENABLE_WINDOWS_COMPAT) && TOML_ENABLE_WINDOWS_COMPAT) \ + || TOML_INTELLISENSE +#undef TOML_ENABLE_WINDOWS_COMPAT +#define TOML_ENABLE_WINDOWS_COMPAT 1 +#endif + +#if !TOML_WINDOWS +#undef TOML_ENABLE_WINDOWS_COMPAT +#define TOML_ENABLE_WINDOWS_COMPAT 0 +#endif + +#ifndef TOML_INCLUDE_WINDOWS_H +#define TOML_INCLUDE_WINDOWS_H 0 +#endif + +// custom optional +#ifdef TOML_OPTIONAL_TYPE +#define TOML_HAS_CUSTOM_OPTIONAL_TYPE 1 +#else +#define TOML_HAS_CUSTOM_OPTIONAL_TYPE 0 +#endif + +// exceptions (library use) +#if TOML_COMPILER_HAS_EXCEPTIONS +#if !defined(TOML_EXCEPTIONS) || (defined(TOML_EXCEPTIONS) && TOML_EXCEPTIONS) +#undef TOML_EXCEPTIONS +#define TOML_EXCEPTIONS 1 +#endif +#else +#if defined(TOML_EXCEPTIONS) && TOML_EXCEPTIONS +#error TOML_EXCEPTIONS was explicitly enabled but exceptions are disabled/unsupported by the compiler. +#endif +#undef TOML_EXCEPTIONS +#define TOML_EXCEPTIONS 0 +#endif + +// calling convention for static/free/friend functions +#ifndef TOML_CALLCONV +#define TOML_CALLCONV +#endif + +#ifndef TOML_UNDEF_MACROS +#define TOML_UNDEF_MACROS 1 +#endif + +#ifndef TOML_MAX_NESTED_VALUES +#define TOML_MAX_NESTED_VALUES 256 +// this refers to the depth of nested values, e.g. inline tables and arrays. +// 256 is crazy high! if you're hitting this limit with real input, TOML is probably the wrong tool for the job... +#endif + +#ifdef TOML_CHAR_8_STRINGS +#if TOML_CHAR_8_STRINGS +#error TOML_CHAR_8_STRINGS was removed in toml++ 2.0.0; all value setters and getters now work with char8_t strings implicitly. +#endif +#endif + +#ifdef TOML_LARGE_FILES +#if !TOML_LARGE_FILES +#error Support for !TOML_LARGE_FILES (i.e. 'small files') was removed in toml++ 3.0.0. +#endif +#endif + +#ifndef TOML_LIFETIME_HOOKS +#define TOML_LIFETIME_HOOKS 0 +#endif + +#ifdef NDEBUG +#undef TOML_ASSERT +#define TOML_ASSERT(expr) static_assert(true) +#endif +#ifndef TOML_ASSERT +#ifndef assert +TOML_DISABLE_WARNINGS; +#include +TOML_ENABLE_WARNINGS; +#endif +#define TOML_ASSERT(expr) assert(expr) +#endif +#ifdef NDEBUG +#define TOML_ASSERT_ASSUME(expr) TOML_ASSUME(expr) +#else +#define TOML_ASSERT_ASSUME(expr) TOML_ASSERT(expr) +#endif + +#if !defined(TOML_FLOAT_CHARCONV) && (TOML_GCC || TOML_CLANG || (TOML_ICC && !TOML_ICC_CL)) +// not supported by any version of GCC or Clang as of 26/11/2020 +// not supported by any version of ICC on Linux as of 11/01/2021 +#define TOML_FLOAT_CHARCONV 0 +#endif +#if !defined(TOML_INT_CHARCONV) && (defined(__EMSCRIPTEN__) || defined(__APPLE__)) +// causes link errors on emscripten +// causes Mac OS SDK version errors on some versions of Apple Clang +#define TOML_INT_CHARCONV 0 +#endif +#ifndef TOML_INT_CHARCONV +#define TOML_INT_CHARCONV 1 +#endif +#ifndef TOML_FLOAT_CHARCONV +#define TOML_FLOAT_CHARCONV 1 +#endif +#if (TOML_INT_CHARCONV || TOML_FLOAT_CHARCONV) && !TOML_HAS_INCLUDE() +#undef TOML_INT_CHARCONV +#undef TOML_FLOAT_CHARCONV +#define TOML_INT_CHARCONV 0 +#define TOML_FLOAT_CHARCONV 0 +#endif + +#if defined(__cpp_concepts) && __cpp_concepts >= 201907 +#define TOML_REQUIRES(...) requires(__VA_ARGS__) +#else +#define TOML_REQUIRES(...) +#endif +#define TOML_ENABLE_IF(...) , typename std::enable_if<(__VA_ARGS__), int>::type = 0 +#define TOML_CONSTRAINED_TEMPLATE(condition, ...) \ + template <__VA_ARGS__ TOML_ENABLE_IF(condition)> \ + TOML_REQUIRES(condition) +#define TOML_HIDDEN_CONSTRAINT(condition, ...) TOML_CONSTRAINED_TEMPLATE(condition, __VA_ARGS__) + +// clang-format off + +#ifdef __FLT16_MANT_DIG__ + #if __FLT_RADIX__ == 2 \ + && __FLT16_MANT_DIG__ == 11 \ + && __FLT16_DIG__ == 3 \ + && __FLT16_MIN_EXP__ == -13 \ + && __FLT16_MIN_10_EXP__ == -4 \ + && __FLT16_MAX_EXP__ == 16 \ + && __FLT16_MAX_10_EXP__ == 4 + #if TOML_ARM && (TOML_GCC || TOML_CLANG) + #define TOML_FP16 __fp16 + #endif + #if TOML_ARM && TOML_CLANG // not present in g++ + #define TOML_FLOAT16 _Float16 + #endif + #endif +#endif + +#if defined(__SIZEOF_FLOAT128__) \ + && defined(__FLT128_MANT_DIG__) \ + && defined(__LDBL_MANT_DIG__) \ + && __FLT128_MANT_DIG__ > __LDBL_MANT_DIG__ + #define TOML_FLOAT128 __float128 +#endif + +#ifdef __SIZEOF_INT128__ + #define TOML_INT128 __int128_t + #define TOML_UINT128 __uint128_t +#endif + +// clang-format on + +// clang-format off + +//******** impl/version.h ******************************************************************************************** + +#define TOML_LIB_MAJOR 3 +#define TOML_LIB_MINOR 1 +#define TOML_LIB_PATCH 0 + +#define TOML_LANG_MAJOR 1 +#define TOML_LANG_MINOR 0 +#define TOML_LANG_PATCH 0 + +//******** impl/preprocessor.h *************************************************************************************** + +#define TOML_LIB_SINGLE_HEADER 1 + +#define TOML_MAKE_VERSION(major, minor, patch) \ + ((major) * 10000 + (minor) * 100 + (patch)) + +#if TOML_ENABLE_UNRELEASED_FEATURES + #define TOML_LANG_EFFECTIVE_VERSION \ + TOML_MAKE_VERSION(TOML_LANG_MAJOR, TOML_LANG_MINOR, TOML_LANG_PATCH+1) +#else + #define TOML_LANG_EFFECTIVE_VERSION \ + TOML_MAKE_VERSION(TOML_LANG_MAJOR, TOML_LANG_MINOR, TOML_LANG_PATCH) +#endif + +#define TOML_LANG_HIGHER_THAN(major, minor, patch) \ + (TOML_LANG_EFFECTIVE_VERSION > TOML_MAKE_VERSION(major, minor, patch)) + +#define TOML_LANG_AT_LEAST(major, minor, patch) \ + (TOML_LANG_EFFECTIVE_VERSION >= TOML_MAKE_VERSION(major, minor, patch)) + +#define TOML_LANG_UNRELEASED \ + TOML_LANG_HIGHER_THAN(TOML_LANG_MAJOR, TOML_LANG_MINOR, TOML_LANG_PATCH) + +#ifndef TOML_ABI_NAMESPACES + #if TOML_DOXYGEN + #define TOML_ABI_NAMESPACES 0 + #else + #define TOML_ABI_NAMESPACES 1 + #endif +#endif +#if TOML_ABI_NAMESPACES + #define TOML_NAMESPACE_START namespace toml { inline namespace TOML_CONCAT(v, TOML_LIB_MAJOR) + #define TOML_NAMESPACE_END } static_assert(true) + #define TOML_NAMESPACE ::toml::TOML_CONCAT(v, TOML_LIB_MAJOR) + #define TOML_ABI_NAMESPACE_START(name) inline namespace name { static_assert(true) + #define TOML_ABI_NAMESPACE_BOOL(cond, T, F) TOML_ABI_NAMESPACE_START(TOML_CONCAT(TOML_EVAL_BOOL_, cond)(T, F)) + #define TOML_ABI_NAMESPACE_END } static_assert(true) +#else + #define TOML_NAMESPACE_START namespace toml + #define TOML_NAMESPACE_END static_assert(true) + #define TOML_NAMESPACE toml + #define TOML_ABI_NAMESPACE_START(...) static_assert(true) + #define TOML_ABI_NAMESPACE_BOOL(...) static_assert(true) + #define TOML_ABI_NAMESPACE_END static_assert(true) +#endif +#define TOML_IMPL_NAMESPACE_START TOML_NAMESPACE_START { namespace impl +#define TOML_IMPL_NAMESPACE_END } TOML_NAMESPACE_END +#if TOML_HEADER_ONLY + #define TOML_ANON_NAMESPACE_START static_assert(TOML_IMPLEMENTATION); TOML_IMPL_NAMESPACE_START + #define TOML_ANON_NAMESPACE_END TOML_IMPL_NAMESPACE_END + #define TOML_ANON_NAMESPACE TOML_NAMESPACE::impl + #define TOML_EXTERNAL_LINKAGE inline + #define TOML_INTERNAL_LINKAGE inline +#else + #define TOML_ANON_NAMESPACE_START static_assert(TOML_IMPLEMENTATION); \ + using namespace toml; \ + namespace + #define TOML_ANON_NAMESPACE_END static_assert(true) + #define TOML_ANON_NAMESPACE + #define TOML_EXTERNAL_LINKAGE + #define TOML_INTERNAL_LINKAGE static +#endif + +// clang-format on + +// clang-format off + +#if TOML_SIMPLE_STATIC_ASSERT_MESSAGES + + #define TOML_SA_NEWLINE " " + #define TOML_SA_LIST_SEP ", " + #define TOML_SA_LIST_BEG " (" + #define TOML_SA_LIST_END ")" + #define TOML_SA_LIST_NEW " " + #define TOML_SA_LIST_NXT ", " + +#else + + #define TOML_SA_NEWLINE "\n| " + #define TOML_SA_LIST_SEP TOML_SA_NEWLINE " - " + #define TOML_SA_LIST_BEG TOML_SA_LIST_SEP + #define TOML_SA_LIST_END + #define TOML_SA_LIST_NEW TOML_SA_NEWLINE TOML_SA_NEWLINE + #define TOML_SA_LIST_NXT TOML_SA_LIST_NEW + +#endif + +#define TOML_SA_NATIVE_VALUE_TYPE_LIST \ + TOML_SA_LIST_BEG "std::string" \ + TOML_SA_LIST_SEP "int64_t" \ + TOML_SA_LIST_SEP "double" \ + TOML_SA_LIST_SEP "bool" \ + TOML_SA_LIST_SEP "toml::date" \ + TOML_SA_LIST_SEP "toml::time" \ + TOML_SA_LIST_SEP "toml::date_time" \ + TOML_SA_LIST_END + +#define TOML_SA_NODE_TYPE_LIST \ + TOML_SA_LIST_BEG "toml::table" \ + TOML_SA_LIST_SEP "toml::array" \ + TOML_SA_LIST_SEP "toml::value" \ + TOML_SA_LIST_SEP "toml::value" \ + TOML_SA_LIST_SEP "toml::value" \ + TOML_SA_LIST_SEP "toml::value" \ + TOML_SA_LIST_SEP "toml::value" \ + TOML_SA_LIST_SEP "toml::value" \ + TOML_SA_LIST_SEP "toml::value" \ + TOML_SA_LIST_END + +#define TOML_SA_UNWRAPPED_NODE_TYPE_LIST \ + TOML_SA_LIST_NEW "A native TOML value type" \ + TOML_SA_NATIVE_VALUE_TYPE_LIST \ + \ + TOML_SA_LIST_NXT "A TOML node type" \ + TOML_SA_NODE_TYPE_LIST + +// clang-format on + +TOML_PUSH_WARNINGS; +TOML_DISABLE_SPAM_WARNINGS; +TOML_DISABLE_SWITCH_WARNINGS; +TOML_DISABLE_SUGGEST_ATTR_WARNINGS; + +// misc warning false-positives +#if TOML_MSVC +#pragma warning(disable : 5031) // #pragma warning(pop): likely mismatch +#if TOML_SHARED_LIB +#pragma warning(disable : 4251) // dll exports for std lib types +#endif +#elif TOML_CLANG +#pragma clang diagnostic ignored "-Wheader-hygiene" +#if TOML_CLANG >= 12 +#pragma clang diagnostic ignored "-Wc++20-extensions" +#endif +#if (TOML_CLANG == 13) && !defined(__APPLE__) +#pragma clang diagnostic ignored "-Wreserved-identifier" +#endif +#endif + +//******** impl/std_new.h ******************************************************************************************** + +TOML_DISABLE_WARNINGS; +#include +TOML_ENABLE_WARNINGS; + +#if TOML_CLANG >= 8 || TOML_GCC >= 7 || TOML_ICC >= 1910 || TOML_MSVC >= 1914 +#define TOML_LAUNDER(x) __builtin_launder(x) +#elif defined(__cpp_lib_launder) && __cpp_lib_launder >= 201606 +#define TOML_LAUNDER(x) std::launder(x) +#else +#define TOML_LAUNDER(x) x +#endif + +//******** impl/std_string.h ***************************************************************************************** + +TOML_DISABLE_WARNINGS; +#include +#include +TOML_ENABLE_WARNINGS; + +#if TOML_DOXYGEN \ + || (defined(__cpp_char8_t) && __cpp_char8_t >= 201811 && defined(__cpp_lib_char8_t) \ + && __cpp_lib_char8_t >= 201907) +#define TOML_HAS_CHAR8 1 +#else +#define TOML_HAS_CHAR8 0 +#endif + +namespace toml // non-abi namespace; this is not an error +{ + using namespace std::string_literals; + using namespace std::string_view_literals; +} + +#if TOML_ENABLE_WINDOWS_COMPAT + +TOML_IMPL_NAMESPACE_START +{ + TOML_NODISCARD + TOML_EXPORTED_FREE_FUNCTION + std::string narrow(std::wstring_view); + + TOML_NODISCARD + TOML_EXPORTED_FREE_FUNCTION + std::wstring widen(std::string_view); + +#if TOML_HAS_CHAR8 + + TOML_NODISCARD + TOML_EXPORTED_FREE_FUNCTION + std::wstring widen(std::u8string_view); + +#endif +} +TOML_IMPL_NAMESPACE_END; + +#endif // TOML_ENABLE_WINDOWS_COMPAT + +//******** impl/std_optional.h *************************************************************************************** + +TOML_DISABLE_WARNINGS; +#if !TOML_HAS_CUSTOM_OPTIONAL_TYPE +#include +#endif +TOML_ENABLE_WARNINGS; + +TOML_NAMESPACE_START +{ +#if TOML_HAS_CUSTOM_OPTIONAL_TYPE + + template + using optional = TOML_OPTIONAL_TYPE; + +#else + + template + using optional = std::optional; + +#endif +} +TOML_NAMESPACE_END; + +//******** impl/forward_declarations.h ******************************************************************************* + +TOML_DISABLE_WARNINGS; +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +TOML_ENABLE_WARNINGS; +TOML_PUSH_WARNINGS; +#ifdef _MSC_VER +#pragma inline_recursion(on) +#pragma push_macro("min") +#pragma push_macro("max") +#undef min +#undef max +#endif + +#ifndef TOML_DISABLE_ENVIRONMENT_CHECKS +#define TOML_ENV_MESSAGE \ + "If you're seeing this error it's because you're building toml++ for an environment that doesn't conform to " \ + "one of the 'ground truths' assumed by the library. Essentially this just means that I don't have the " \ + "resources to test on more platforms, but I wish I did! You can try disabling the checks by defining " \ + "TOML_DISABLE_ENVIRONMENT_CHECKS, but your mileage may vary. Please consider filing an issue at " \ + "https://github.com/marzer/tomlplusplus/issues to help me improve support for your target environment. " \ + "Thanks!" + +static_assert(CHAR_BIT == 8, TOML_ENV_MESSAGE); +static_assert(FLT_RADIX == 2, TOML_ENV_MESSAGE); +static_assert('A' == 65, TOML_ENV_MESSAGE); +static_assert(sizeof(double) == 8, TOML_ENV_MESSAGE); +static_assert(std::numeric_limits::is_iec559, TOML_ENV_MESSAGE); +static_assert(std::numeric_limits::digits == 53, TOML_ENV_MESSAGE); +static_assert(std::numeric_limits::digits10 == 15, TOML_ENV_MESSAGE); + +#undef TOML_ENV_MESSAGE +#endif // !TOML_DISABLE_ENVIRONMENT_CHECKS + +// undocumented forward declarations are hidden from doxygen because they fuck it up =/ + +namespace toml // non-abi namespace; this is not an error +{ + using ::std::size_t; + using ::std::intptr_t; + using ::std::uintptr_t; + using ::std::ptrdiff_t; + using ::std::nullptr_t; + using ::std::int8_t; + using ::std::int16_t; + using ::std::int32_t; + using ::std::int64_t; + using ::std::uint8_t; + using ::std::uint16_t; + using ::std::uint32_t; + using ::std::uint64_t; + using ::std::uint_least32_t; + using ::std::uint_least64_t; +} + +TOML_NAMESPACE_START +{ + struct date; + struct time; + struct time_offset; + + TOML_ABI_NAMESPACE_BOOL(TOML_HAS_CUSTOM_OPTIONAL_TYPE, custopt, stdopt); + struct date_time; + TOML_ABI_NAMESPACE_END; + + struct source_position; + struct source_region; + + class node; + template + class node_view; + + class key; + class array; + class table; + template + class value; + + class path; + + class toml_formatter; + class json_formatter; + class yaml_formatter; + + TOML_ABI_NAMESPACE_BOOL(TOML_EXCEPTIONS, ex, noex); +#if TOML_EXCEPTIONS + using parse_result = table; +#else + class parse_result; +#endif + TOML_ABI_NAMESPACE_END; // TOML_EXCEPTIONS +} +TOML_NAMESPACE_END; + +TOML_IMPL_NAMESPACE_START +{ + using node_ptr = std::unique_ptr; + + TOML_ABI_NAMESPACE_BOOL(TOML_EXCEPTIONS, impl_ex, impl_noex); + class parser; + TOML_ABI_NAMESPACE_END; // TOML_EXCEPTIONS + + // clang-format off + + inline constexpr std::string_view control_char_escapes[] = + { + "\\u0000"sv, + "\\u0001"sv, + "\\u0002"sv, + "\\u0003"sv, + "\\u0004"sv, + "\\u0005"sv, + "\\u0006"sv, + "\\u0007"sv, + "\\b"sv, + "\\t"sv, + "\\n"sv, + "\\u000B"sv, + "\\f"sv, + "\\r"sv, + "\\u000E"sv, + "\\u000F"sv, + "\\u0010"sv, + "\\u0011"sv, + "\\u0012"sv, + "\\u0013"sv, + "\\u0014"sv, + "\\u0015"sv, + "\\u0016"sv, + "\\u0017"sv, + "\\u0018"sv, + "\\u0019"sv, + "\\u001A"sv, + "\\u001B"sv, + "\\u001C"sv, + "\\u001D"sv, + "\\u001E"sv, + "\\u001F"sv, + }; + + inline constexpr std::string_view node_type_friendly_names[] = + { + "none"sv, + "table"sv, + "array"sv, + "string"sv, + "integer"sv, + "floating-point"sv, + "boolean"sv, + "date"sv, + "time"sv, + "date-time"sv + }; + + // clang-format on +} +TOML_IMPL_NAMESPACE_END; + +#if TOML_ABI_NAMESPACES +#if TOML_EXCEPTIONS +#define TOML_PARSER_TYPENAME TOML_NAMESPACE::impl::impl_ex::parser +#else +#define TOML_PARSER_TYPENAME TOML_NAMESPACE::impl::impl_noex::parser +#endif +#else +#define TOML_PARSER_TYPENAME TOML_NAMESPACE::impl::parser +#endif + +namespace toml +{ +} + +TOML_NAMESPACE_START // abi namespace +{ + inline namespace literals + { + } + + enum class TOML_CLOSED_ENUM node_type : uint8_t + { + none, + table, + array, + string, + integer, + floating_point, + boolean, + date, + time, + date_time + }; + + template + inline std::basic_ostream& operator<<(std::basic_ostream& lhs, node_type rhs) + { + const auto str = impl::node_type_friendly_names[static_cast>(rhs)]; + using str_char_t = decltype(str)::value_type; + if constexpr (std::is_same_v) + return lhs << str; + else + { + if constexpr (sizeof(Char) == sizeof(str_char_t)) + return lhs << std::basic_string_view{ reinterpret_cast(str.data()), str.length() }; + else + return lhs << str.data(); + } + } + + enum class TOML_OPEN_FLAGS_ENUM value_flags : uint16_t // being an "OPEN" flags enum is not an error + { + none, + format_as_binary = 1, + format_as_octal = 2, + format_as_hexadecimal = 3, + }; + TOML_MAKE_FLAGS(value_flags); + + inline constexpr value_flags preserve_source_value_flags = + POXY_IMPLEMENTATION_DETAIL(value_flags{ static_cast>(-1) }); + + enum class TOML_CLOSED_FLAGS_ENUM format_flags : uint64_t + { + none, + quote_dates_and_times = (1ull << 0), + quote_infinities_and_nans = (1ull << 1), + allow_literal_strings = (1ull << 2), + allow_multi_line_strings = (1ull << 3), + allow_real_tabs_in_strings = (1ull << 4), + allow_unicode_strings = (1ull << 5), + allow_binary_integers = (1ull << 6), + allow_octal_integers = (1ull << 7), + allow_hexadecimal_integers = (1ull << 8), + indent_sub_tables = (1ull << 9), + indent_array_elements = (1ull << 10), + indentation = indent_sub_tables | indent_array_elements, + relaxed_float_precision = (1ull << 11), + }; + TOML_MAKE_FLAGS(format_flags); + + template + struct TOML_TRIVIAL_ABI inserter + { + static_assert(std::is_reference_v); + + T value; + }; + template + inserter(T &&) -> inserter; + template + inserter(T&) -> inserter; + + using default_formatter = toml_formatter; +} +TOML_NAMESPACE_END; + +TOML_IMPL_NAMESPACE_START +{ + template + using remove_cvref = std::remove_cv_t>; + + template + using common_signed_type = std::common_type_t...>; + + template + inline constexpr bool is_one_of = (false || ... || std::is_same_v); + + template + inline constexpr bool all_integral = (std::is_integral_v && ...); + + template + inline constexpr bool is_cvref = std::is_reference_v || std::is_const_v || std::is_volatile_v; + + template + inline constexpr bool is_wide_string = + is_one_of, const wchar_t*, wchar_t*, std::wstring_view, std::wstring>; + + template + inline constexpr bool value_retrieval_is_nothrow = !std::is_same_v, std::string> +#if TOML_HAS_CHAR8 + && !std::is_same_v, std::u8string> +#endif + + && !is_wide_string; + + template + struct copy_ref_; + template + using copy_ref = typename copy_ref_::type; + + template + struct copy_ref_ + { + using type = Dest; + }; + + template + struct copy_ref_ + { + using type = std::add_lvalue_reference_t; + }; + + template + struct copy_ref_ + { + using type = std::add_rvalue_reference_t; + }; + + template + struct copy_cv_; + template + using copy_cv = typename copy_cv_::type; + + template + struct copy_cv_ + { + using type = Dest; + }; + + template + struct copy_cv_ + { + using type = std::add_const_t; + }; + + template + struct copy_cv_ + { + using type = std::add_volatile_t; + }; + + template + struct copy_cv_ + { + using type = std::add_cv_t; + }; + + template + using copy_cvref = + copy_ref, std::remove_reference_t>, Dest>, Src>; + + template + inline constexpr bool dependent_false = false; + + template + inline constexpr bool first_is_same = false; + template + inline constexpr bool first_is_same = true; + + // general value traits + // (as they relate to their equivalent native TOML type) + template + struct value_traits + { + using native_type = void; + static constexpr bool is_native = false; + static constexpr bool is_losslessly_convertible_to_native = false; + static constexpr bool can_represent_native = false; + static constexpr bool can_partially_represent_native = false; + static constexpr auto type = node_type::none; + }; + + template + struct value_traits : value_traits + {}; + template + struct value_traits : value_traits + {}; + template + struct value_traits : value_traits + {}; + template + struct value_traits : value_traits + {}; + template + struct value_traits : value_traits + {}; + + // integer value_traits specializations - standard types + template + struct integer_limits + { + static constexpr auto min = (std::numeric_limits::min)(); + static constexpr auto max = (std::numeric_limits::max)(); + }; + template + struct integer_traits_base : integer_limits + { + using native_type = int64_t; + static constexpr bool is_native = std::is_same_v; + static constexpr bool is_signed = static_cast(-1) < T{}; // for impls not specializing std::is_signed + static constexpr auto type = node_type::integer; + static constexpr bool can_partially_represent_native = true; + }; + template + struct unsigned_integer_traits : integer_traits_base + { + static constexpr bool is_losslessly_convertible_to_native = integer_limits::max <= 9223372036854775807ULL; + static constexpr bool can_represent_native = false; + }; + template + struct signed_integer_traits : integer_traits_base + { + using native_type = int64_t; + static constexpr bool is_losslessly_convertible_to_native = + integer_limits::min >= (-9223372036854775807LL - 1LL) && integer_limits::max <= 9223372036854775807LL; + static constexpr bool can_represent_native = + integer_limits::min <= (-9223372036854775807LL - 1LL) && integer_limits::max >= 9223372036854775807LL; + }; + template ::is_signed> + struct integer_traits : signed_integer_traits + {}; + template + struct integer_traits : unsigned_integer_traits + {}; + template <> + struct value_traits : integer_traits + {}; + template <> + struct value_traits : integer_traits + {}; + template <> + struct value_traits : integer_traits + {}; + template <> + struct value_traits : integer_traits + {}; + template <> + struct value_traits : integer_traits + {}; + template <> + struct value_traits : integer_traits + {}; + template <> + struct value_traits : integer_traits + {}; + template <> + struct value_traits : integer_traits + {}; + template <> + struct value_traits : integer_traits + {}; + template <> + struct value_traits : integer_traits + {}; + static_assert(value_traits::is_native); + static_assert(value_traits::is_signed); + static_assert(value_traits::is_losslessly_convertible_to_native); + static_assert(value_traits::can_represent_native); + static_assert(value_traits::can_partially_represent_native); + + // integer value_traits specializations - non-standard types +#ifdef TOML_INT128 + template <> + struct integer_limits + { + static constexpr TOML_INT128 max = + static_cast((TOML_UINT128{ 1u } << ((__SIZEOF_INT128__ * CHAR_BIT) - 1)) - 1); + static constexpr TOML_INT128 min = -max - TOML_INT128{ 1 }; + }; + template <> + struct integer_limits + { + static constexpr TOML_UINT128 min = TOML_UINT128{}; + static constexpr TOML_UINT128 max = (2u * static_cast(integer_limits::max)) + 1u; + }; + template <> + struct value_traits : integer_traits + {}; + template <> + struct value_traits : integer_traits + {}; +#endif +#ifdef TOML_SMALL_INT_TYPE + template <> + struct value_traits : signed_integer_traits + {}; +#endif + + // floating-point traits base + template + struct float_traits_base + { + static constexpr auto type = node_type::floating_point; + using native_type = double; + static constexpr bool is_native = std::is_same_v; + static constexpr bool is_signed = true; + + static constexpr int bits = static_cast(sizeof(T) * CHAR_BIT); + static constexpr int digits = MantissaDigits; + static constexpr int digits10 = DecimalDigits; + + static constexpr bool is_losslessly_convertible_to_native = bits <= 64 // + && digits <= 53 // DBL_MANT_DIG + && digits10 <= 15; // DBL_DIG + + static constexpr bool can_represent_native = digits >= 53 // DBL_MANT_DIG + && digits10 >= 15; // DBL_DIG + + static constexpr bool can_partially_represent_native = digits > 0 && digits10 > 0; + }; + template + struct float_traits : float_traits_base::digits, std::numeric_limits::digits10> + {}; +#ifdef TOML_FP16 + template <> + struct float_traits : float_traits_base + {}; +#endif +#ifdef TOML_FLOAT16 + template <> + struct float_traits : float_traits_base + {}; +#endif +#ifdef TOML_FLOAT128 + template <> + struct float_traits : float_traits_base + {}; +#endif + + // floating-point traits + template <> + struct value_traits : float_traits + {}; + template <> + struct value_traits : float_traits + {}; + template <> + struct value_traits : float_traits + {}; +#ifdef TOML_FP16 + template <> + struct value_traits : float_traits + {}; +#endif +#ifdef TOML_FLOAT16 + template <> + struct value_traits : float_traits + {}; +#endif +#ifdef TOML_FLOAT128 + template <> + struct value_traits : float_traits + {}; +#endif +#ifdef TOML_SMALL_FLOAT_TYPE + template <> + struct value_traits : float_traits + {}; +#endif + static_assert(value_traits::is_native); + static_assert(value_traits::is_losslessly_convertible_to_native); + static_assert(value_traits::can_represent_native); + static_assert(value_traits::can_partially_represent_native); + + // string value_traits specializations - char-based strings + template + struct string_traits + { + using native_type = std::string; + static constexpr bool is_native = std::is_same_v; + static constexpr bool is_losslessly_convertible_to_native = true; + static constexpr bool can_represent_native = + !std::is_array_v && (!std::is_pointer_v || std::is_const_v>); + static constexpr bool can_partially_represent_native = can_represent_native; + static constexpr auto type = node_type::string; + }; + template <> + struct value_traits : string_traits + {}; + template <> + struct value_traits : string_traits + {}; + template <> + struct value_traits : string_traits + {}; + template + struct value_traits : string_traits + {}; + template <> + struct value_traits : string_traits + {}; + template + struct value_traits : string_traits + {}; + + // string value_traits specializations - char8_t-based strings +#if TOML_HAS_CHAR8 + template <> + struct value_traits : string_traits + {}; + template <> + struct value_traits : string_traits + {}; + template <> + struct value_traits : string_traits + {}; + template + struct value_traits : string_traits + {}; + template <> + struct value_traits : string_traits + {}; + template + struct value_traits : string_traits + {}; +#endif + + // string value_traits specializations - wchar_t-based strings on Windows +#if TOML_ENABLE_WINDOWS_COMPAT + template + struct wstring_traits + { + using native_type = std::string; + static constexpr bool is_native = false; + static constexpr bool is_losslessly_convertible_to_native = true; // narrow + static constexpr bool can_represent_native = std::is_same_v; // widen + static constexpr bool can_partially_represent_native = can_represent_native; + static constexpr auto type = node_type::string; + }; + template <> + struct value_traits : wstring_traits + {}; + template <> + struct value_traits : wstring_traits + {}; + template <> + struct value_traits : wstring_traits + {}; + template + struct value_traits : wstring_traits + {}; + template <> + struct value_traits : wstring_traits + {}; + template + struct value_traits : wstring_traits + {}; +#endif + + // other 'native' value_traits specializations + template + struct native_value_traits + { + using native_type = T; + static constexpr bool is_native = true; + static constexpr bool is_losslessly_convertible_to_native = true; + static constexpr bool can_represent_native = true; + static constexpr bool can_partially_represent_native = true; + static constexpr auto type = NodeType; + }; + template <> + struct value_traits : native_value_traits + {}; + template <> + struct value_traits : native_value_traits + {}; + template <> + struct value_traits