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llvm-project/libcxx/include/limits.h

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[libcxx] Add the missing limits.h header The implementation of [depr.c.headers] in D12747 introduced the necessary C headers into libc++. This patch adds one more missing headers: limits.h We spotted this due to a failing C++03 test [limits_h.pass.cpp] in our libc++ configuration; when the limits.h header is included from a C++ program, it now bypassed the __config header and went directly into the underlying C library's limits.h header, which is problematic for us because we use __config header to configure the underlying C library's behaviour when used from a C++ context. Reviewers: mclow.lists, rsmith Differential revision: https://reviews.llvm.org/D25361 llvm-svn: 283726
2016-10-10 16:38:51 +08:00
// -*- C++ -*-
//===--------------------------- limits.h ---------------------------------===//
//
Update more file headers across all of the LLVM projects in the monorepo to reflect the new license. These used slightly different spellings that defeated my regular expressions. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351648
2019-01-19 18:56:40 +08:00
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
[libcxx] Add the missing limits.h header The implementation of [depr.c.headers] in D12747 introduced the necessary C headers into libc++. This patch adds one more missing headers: limits.h We spotted this due to a failing C++03 test [limits_h.pass.cpp] in our libc++ configuration; when the limits.h header is included from a C++ program, it now bypassed the __config header and went directly into the underlying C library's limits.h header, which is problematic for us because we use __config header to configure the underlying C library's behaviour when used from a C++ context. Reviewers: mclow.lists, rsmith Differential revision: https://reviews.llvm.org/D25361 llvm-svn: 283726
2016-10-10 16:38:51 +08:00
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_LIMITS_H
#define _LIBCPP_LIMITS_H
/*
limits.h synopsis
Macros:
CHAR_BIT
SCHAR_MIN
SCHAR_MAX
UCHAR_MAX
CHAR_MIN
CHAR_MAX
MB_LEN_MAX
SHRT_MIN
SHRT_MAX
USHRT_MAX
INT_MIN
INT_MAX
UINT_MAX
LONG_MIN
LONG_MAX
ULONG_MAX
LLONG_MIN // C99
LLONG_MAX // C99
ULLONG_MAX // C99
*/
#include <__config>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
[libcxx] Fix gcc build. Attempt to fix a horrible gcc include order problem. llvm-svn: 283762
2016-10-10 23:56:01 +08:00
#ifndef __GNUC__
[libcxx] Add the missing limits.h header The implementation of [depr.c.headers] in D12747 introduced the necessary C headers into libc++. This patch adds one more missing headers: limits.h We spotted this due to a failing C++03 test [limits_h.pass.cpp] in our libc++ configuration; when the limits.h header is included from a C++ program, it now bypassed the __config header and went directly into the underlying C library's limits.h header, which is problematic for us because we use __config header to configure the underlying C library's behaviour when used from a C++ context. Reviewers: mclow.lists, rsmith Differential revision: https://reviews.llvm.org/D25361 llvm-svn: 283726
2016-10-10 16:38:51 +08:00
#include_next <limits.h>
[libcxx] Fix gcc build. Attempt to fix a horrible gcc include order problem. llvm-svn: 283762
2016-10-10 23:56:01 +08:00
#else
// GCC header limits.h recursively includes itself through another header called
// syslimits.h for some reason. This setup breaks down if we directly
// #include_next GCC's limits.h (reasons not entirely clear to me). Therefore,
// we manually re-create the necessary include sequence below:
// Get the system limits.h defines (force recurse into the next level)
#define _GCC_LIMITS_H_
#define _GCC_NEXT_LIMITS_H
#include_next <limits.h>
// Get the ISO C defines
#undef _GCC_LIMITS_H_
#include_next <limits.h>
#endif // __GNUC__
[libcxx] Add the missing limits.h header The implementation of [depr.c.headers] in D12747 introduced the necessary C headers into libc++. This patch adds one more missing headers: limits.h We spotted this due to a failing C++03 test [limits_h.pass.cpp] in our libc++ configuration; when the limits.h header is included from a C++ program, it now bypassed the __config header and went directly into the underlying C library's limits.h header, which is problematic for us because we use __config header to configure the underlying C library's behaviour when used from a C++ context. Reviewers: mclow.lists, rsmith Differential revision: https://reviews.llvm.org/D25361 llvm-svn: 283726
2016-10-10 16:38:51 +08:00
#endif // _LIBCPP_LIMITS_H