libstdc++: stdlib.h Source File

libstdc++

stdlib.h
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1// -*- C++ -*- compatibility header.
2
3// Copyright (C) 2002-2026 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library. This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 3, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14// GNU General Public License for more details.
15
16// Under Section 7 of GPL version 3, you are granted additional
17// permissions described in the GCC Runtime Library Exception, version
18// 3.1, as published by the Free Software Foundation.
19
20// You should have received a copy of the GNU General Public License and
21// a copy of the GCC Runtime Library Exception along with this program;
22// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23// <http://www.gnu.org/licenses/>.
24
25/** @file stdlib.h
26 * This is a Standard C++ Library header.
27 */
28
29#if !defined __cplusplus || defined _GLIBCXX_INCLUDE_NEXT_C_HEADERS
30# include_next <stdlib.h>
31#else
32
33#ifndef _GLIBCXX_STDLIB_H
34#define _GLIBCXX_STDLIB_H 1
35
36# include <cstdlib>
37
38using std::abort;
39using std::atexit;
40using std::exit;
41#if __cplusplus >= 201103L
42# ifdef _GLIBCXX_HAVE_AT_QUICK_EXIT
43 using std::at_quick_exit;
44# endif
45# ifdef _GLIBCXX_HAVE_QUICK_EXIT
46 using std::quick_exit;
47# endif
48# if _GLIBCXX_USE_C99_STDLIB
49 using std::_Exit;
50# endif
51#endif
52
53#if _GLIBCXX_HOSTED
54using std::div_t;
55using std::ldiv_t;
56
57using std::abs;
58using std::atof;
59using std::atoi;
60using std::atol;
61using std::bsearch;
62using std::calloc;
63using std::div;
64using std::free;
65using std::getenv;
66using std::labs;
67using std::ldiv;
68using std::malloc;
69#ifdef _GLIBCXX_HAVE_MBSTATE_T
70using std::mblen;
71using std::mbstowcs;
72using std::mbtowc;
73#endif // _GLIBCXX_HAVE_MBSTATE_T
74using std::qsort;
75using std::rand;
76using std::realloc;
77using std::srand;
78using std::strtod;
79using std::strtol;
80using std::strtoul;
81using std::system;
82#ifdef _GLIBCXX_USE_WCHAR_T
83using std::wcstombs;
84using std::wctomb;
85#endif // _GLIBCXX_USE_WCHAR_T
86#endif
87
88#endif // _GLIBCXX_STDLIB_H
89#endif // __cplusplus
cstdlib
std::abs
_Tp abs(const complex< _Tp > &)
Return magnitude of z.
Definition complex:968