std_cstdlib.h revision 117397 
1// -*- C++ -*- forwarding header.
2
3// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003
4// Free Software Foundation, Inc.
5//
6// This file is part of the GNU ISO C++ Library.  This library is free
7// software; you can redistribute it and/or modify it under the
8// terms of the GNU General Public License as published by the
9// Free Software Foundation; either version 2, or (at your option)
10// any later version.
11
12// This library is distributed in the hope that it will be useful,
13// but WITHOUT ANY WARRANTY; without even the implied warranty of
14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15// GNU General Public License for more details.
16
17// You should have received a copy of the GNU General Public License along
18// with this library; see the file COPYING.  If not, write to the Free
19// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
20// USA.
21
22// As a special exception, you may use this file as part of a free software
23// library without restriction.  Specifically, if other files instantiate
24// templates or use macros or inline functions from this file, or you compile
25// this file and link it with other files to produce an executable, this
26// file does not by itself cause the resulting executable to be covered by
27// the GNU General Public License.  This exception does not however
28// invalidate any other reasons why the executable file might be covered by
29// the GNU General Public License.
30
31//
32// ISO C++ 14882: 20.4.6  C library
33//
34
35/** @file cstdlib
36 *  This is a Standard C++ Library file.  You should @c #include this file
37 *  in your programs, rather than any of the "*.h" implementation files.
38 *
39 *  This is the C++ version of the Standard C Library header @c stdlib.h,
40 *  and its contents are (mostly) the same as that header, but are all
41 *  contained in the namespace @c std.
42 */
43
44#ifndef _CPP_CSTDLIB
45#define _CPP_CSTDLIB 1
46
47#pragma GCC system_header
48
49#include <bits/c++config.h>
50#include <cstddef>
51
52#include <stdlib.h>
53
54// Get rid of those macros defined in <stdlib.h> in lieu of real functions.
55#undef abort
56#undef abs
57#undef atexit
58#undef atof
59#undef atoi
60#undef atol
61#undef bsearch
62#undef calloc
63#undef div
64#undef exit
65#undef free
66#undef getenv
67#undef labs
68#undef ldiv
69#undef malloc
70#undef mblen
71#undef mbstowcs
72#undef mbtowc
73#undef qsort
74#undef rand
75#undef realloc
76#undef srand
77#undef strtod
78#undef strtol
79#undef strtoul
80#undef system
81#undef wcstombs
82#undef wctomb
83
84namespace std
85{
86  using ::div_t;
87  using ::ldiv_t;
88
89  using ::abort;
90  using ::abs;
91  using ::atexit;
92  using ::atof;
93  using ::atoi;
94  using ::atol;
95  using ::bsearch;
96  using ::calloc;
97  using ::div;
98  using ::exit;
99  using ::free;
100  using ::getenv;
101  using ::labs;
102  using ::ldiv;
103  using ::malloc;
104  using ::mblen;
105  using ::mbstowcs;
106  using ::mbtowc;
107  using ::qsort;
108  using ::rand;
109  using ::realloc;
110  using ::srand;
111  using ::strtod;
112  using ::strtol;
113  using ::strtoul;
114  using ::system;
115  using ::wcstombs;
116  using ::wctomb;
117
118  inline long
119  abs(long __i) { return labs(__i); }
120
121  inline ldiv_t
122  div(long __i, long __j) { return ldiv(__i, __j); }
123}
124
125#if _GLIBCPP_USE_C99
126
127#undef _Exit
128#undef llabs
129#undef lldiv
130#undef atoll
131#undef strtoll
132#undef strtoull
133#undef strtof
134#undef strtold
135
136namespace __gnu_cxx
137{
138#if !_GLIBCPP_USE_C99_LONG_LONG_DYNAMIC
139  using ::lldiv_t;
140#endif
141#if _GLIBCPP_USE_C99_CHECK || _GLIBCPP_USE_C99_DYNAMIC
142  extern "C" void (_Exit)(int);
143#endif
144#if !_GLIBCPP_USE_C99_DYNAMIC
145  using ::_Exit;
146#endif
147
148  inline long long
149  abs(long long __x) { return __x >= 0 ? __x : -__x; }
150
151  inline long long
152  llabs(long long __x) { return __x >= 0 ? __x : -__x; }
153
154#if !_GLIBCPP_USE_C99_LONG_LONG_DYNAMIC
155  inline lldiv_t
156  div(long long __n, long long __d)
157  { lldiv_t __q; __q.quot = __n / __d; __q.rem = __n % __d; return __q; }
158
159  inline lldiv_t
160  lldiv(long long __n, long long __d)
161  { lldiv_t __q; __q.quot = __n / __d; __q.rem = __n % __d; return __q; }
162#endif
163
164#if _GLIBCPP_USE_C99_LONG_LONG_CHECK || _GLIBCPP_USE_C99_LONG_LONG_DYNAMIC
165  extern "C" long long int (atoll)(const char *);
166  extern "C" long long int
167    (strtoll)(const char * restrict, char ** restrict, int);
168  extern "C" unsigned long long int
169    (strtoull)(const char * restrict, char ** restrict, int);
170#endif
171#if !_GLIBCPP_USE_C99_LONG_LONG_DYNAMIC
172  using ::atoll;
173  using ::strtoll;
174  using ::strtoull;
175#endif
176  using ::strtof;
177  using ::strtold;
178}
179
180namespace std
181{
182#if !_GLIBCPP_USE_C99_LONG_LONG_DYNAMIC
183  using __gnu_cxx::lldiv_t;
184#endif
185  using __gnu_cxx::_Exit;
186  using __gnu_cxx::abs;
187  using __gnu_cxx::llabs;
188#if !_GLIBCPP_USE_C99_LONG_LONG_DYNAMIC
189  using __gnu_cxx::div;
190  using __gnu_cxx::lldiv;
191#endif
192  using __gnu_cxx::atoll;
193  using __gnu_cxx::strtof;
194  using __gnu_cxx::strtoll;
195  using __gnu_cxx::strtoull;
196  using __gnu_cxx::strtold;
197}
198#endif
199
200#endif
201