mirror of
https://github.com/darlinghq/darling-libcxx.git
synced 2024-11-23 11:59:52 +00:00
3ec6b84545
Summary: Currently a number of GCC warnings are emitted when building libc++. This patch fixes or ignores all of them. The primary changes are: * Work around strict aliasing issues in `typeinfo::hash_code()` by using __attribute__((may_alias)). However I think a non-aliasing `hash_code()` implementation is possible. Further investigation needed. * Add `_LIBCPP_UNREACHABLE()` to switch in `strstream.cpp` to avoid -Wpotentially-uninitialized. * Fix -Wunused-value warning in `__all` by adding a void cast. * Ignore -Wattributes for now. There are a number of real attribute issues when using GCC but enabling the warning is too noisy. * Ignore -Wliteral-suffix since it warns about the use of reserved identifiers. Note Only GCC 7.0 supports disabling this warning. * Ignore -Wc++14-compat since it warns about the sized new/delete overloads. Reviewers: EricWF Differential Revision: https://reviews.llvm.org/D24003 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@280007 91177308-0d34-0410-b5e6-96231b3b80d8
165 lines
4.6 KiB
C++
165 lines
4.6 KiB
C++
// -*- C++ -*-
|
|
//===--------------------------- cstdlib ----------------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is dual licensed under the MIT and the University of Illinois Open
|
|
// Source Licenses. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef _LIBCPP_CSTDLIB
|
|
#define _LIBCPP_CSTDLIB
|
|
|
|
/*
|
|
cstdlib synopsis
|
|
|
|
Macros:
|
|
|
|
EXIT_FAILURE
|
|
EXIT_SUCCESS
|
|
MB_CUR_MAX
|
|
NULL
|
|
RAND_MAX
|
|
|
|
namespace std
|
|
{
|
|
|
|
Types:
|
|
|
|
size_t
|
|
div_t
|
|
ldiv_t
|
|
lldiv_t // C99
|
|
|
|
double atof (const char* nptr);
|
|
int atoi (const char* nptr);
|
|
long atol (const char* nptr);
|
|
long long atoll(const char* nptr); // C99
|
|
double strtod (const char* restrict nptr, char** restrict endptr);
|
|
float strtof (const char* restrict nptr, char** restrict endptr); // C99
|
|
long double strtold (const char* restrict nptr, char** restrict endptr); // C99
|
|
long strtol (const char* restrict nptr, char** restrict endptr, int base);
|
|
long long strtoll (const char* restrict nptr, char** restrict endptr, int base); // C99
|
|
unsigned long strtoul (const char* restrict nptr, char** restrict endptr, int base);
|
|
unsigned long long strtoull(const char* restrict nptr, char** restrict endptr, int base); // C99
|
|
int rand(void);
|
|
void srand(unsigned int seed);
|
|
void* calloc(size_t nmemb, size_t size);
|
|
void free(void* ptr);
|
|
void* malloc(size_t size);
|
|
void* realloc(void* ptr, size_t size);
|
|
void abort(void);
|
|
int atexit(void (*func)(void));
|
|
void exit(int status);
|
|
void _Exit(int status);
|
|
char* getenv(const char* name);
|
|
int system(const char* string);
|
|
void* bsearch(const void* key, const void* base, size_t nmemb, size_t size,
|
|
int (*compar)(const void *, const void *));
|
|
void qsort(void* base, size_t nmemb, size_t size,
|
|
int (*compar)(const void *, const void *));
|
|
int abs( int j);
|
|
long abs( long j);
|
|
long long abs(long long j); // C++0X
|
|
long labs( long j);
|
|
long long llabs(long long j); // C99
|
|
div_t div( int numer, int denom);
|
|
ldiv_t div( long numer, long denom);
|
|
lldiv_t div(long long numer, long long denom); // C++0X
|
|
ldiv_t ldiv( long numer, long denom);
|
|
lldiv_t lldiv(long long numer, long long denom); // C99
|
|
int mblen(const char* s, size_t n);
|
|
int mbtowc(wchar_t* restrict pwc, const char* restrict s, size_t n);
|
|
int wctomb(char* s, wchar_t wchar);
|
|
size_t mbstowcs(wchar_t* restrict pwcs, const char* restrict s, size_t n);
|
|
size_t wcstombs(char* restrict s, const wchar_t* restrict pwcs, size_t n);
|
|
int at_quick_exit(void (*func)(void)) // C++11
|
|
void quick_exit(int status); // C++11
|
|
void *aligned_alloc(size_t alignment, size_t size); // C11
|
|
|
|
} // std
|
|
|
|
*/
|
|
|
|
#include <__config>
|
|
#include <stdlib.h>
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
|
#pragma GCC system_header
|
|
#endif
|
|
|
|
#ifdef __GNUC__
|
|
#define _LIBCPP_UNREACHABLE() __builtin_unreachable()
|
|
#else
|
|
#define _LIBCPP_UNREACHABLE() _VSTD::abort()
|
|
#endif
|
|
|
|
_LIBCPP_BEGIN_NAMESPACE_STD
|
|
|
|
using ::size_t;
|
|
using ::div_t;
|
|
using ::ldiv_t;
|
|
#ifndef _LIBCPP_HAS_NO_LONG_LONG
|
|
using ::lldiv_t;
|
|
#endif // _LIBCPP_HAS_NO_LONG_LONG
|
|
using ::atof;
|
|
using ::atoi;
|
|
using ::atol;
|
|
#ifndef _LIBCPP_HAS_NO_LONG_LONG
|
|
using ::atoll;
|
|
#endif // _LIBCPP_HAS_NO_LONG_LONG
|
|
using ::strtod;
|
|
using ::strtof;
|
|
using ::strtold;
|
|
using ::strtol;
|
|
#ifndef _LIBCPP_HAS_NO_LONG_LONG
|
|
using ::strtoll;
|
|
#endif // _LIBCPP_HAS_NO_LONG_LONG
|
|
using ::strtoul;
|
|
#ifndef _LIBCPP_HAS_NO_LONG_LONG
|
|
using ::strtoull;
|
|
#endif // _LIBCPP_HAS_NO_LONG_LONG
|
|
using ::rand;
|
|
using ::srand;
|
|
using ::calloc;
|
|
using ::free;
|
|
using ::malloc;
|
|
using ::realloc;
|
|
using ::abort;
|
|
using ::atexit;
|
|
using ::exit;
|
|
using ::_Exit;
|
|
using ::getenv;
|
|
using ::system;
|
|
using ::bsearch;
|
|
using ::qsort;
|
|
using ::abs;
|
|
using ::labs;
|
|
#ifndef _LIBCPP_HAS_NO_LONG_LONG
|
|
using ::llabs;
|
|
#endif // _LIBCPP_HAS_NO_LONG_LONG
|
|
using ::div;
|
|
using ::ldiv;
|
|
#ifndef _LIBCPP_HAS_NO_LONG_LONG
|
|
using ::lldiv;
|
|
#endif // _LIBCPP_HAS_NO_LONG_LONG
|
|
#ifndef _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS
|
|
using ::mblen;
|
|
using ::mbtowc;
|
|
using ::wctomb;
|
|
#endif
|
|
using ::mbstowcs;
|
|
using ::wcstombs;
|
|
#ifdef _LIBCPP_HAS_QUICK_EXIT
|
|
using ::at_quick_exit;
|
|
using ::quick_exit;
|
|
#endif
|
|
#ifdef _LIBCPP_HAS_C11_FEATURES
|
|
using ::aligned_alloc;
|
|
#endif
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
#endif // _LIBCPP_CSTDLIB
|