222 lines
6.8 KiB
C++
222 lines
6.8 KiB
C++
// -*- C++ -*- header wrapper
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// Copyright (C) 1997-1999 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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//
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// ISO C++ 14882: 20.4.6 C library
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//
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// Function decls in this header are overloaded on the
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// extern "C"-ness of arguments. This is a rich ground
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// for compiler bugs.
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#ifndef _CPP_CSTDLIB
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#define _CPP_CSTDLIB 1
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# include <bits/std_cstddef.h> /* pick up NULL, size_t */
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namespace _C_Swamp {
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extern "C" {
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# define _IN_C_SWAMP_
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# include_next <stdlib.h>
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typedef int (*_C_cmp_fun_ptr)(const void*, const void*); // C fn ptr
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}
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const int _CPP_EXIT_SUCCESS_capture = int(EXIT_SUCCESS);
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const int _CPP_EXIT_FAILURE_capture = int(EXIT_FAILURE);
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const int _CPP_RAND_MAX_capture = int(RAND_MAX);
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inline int _CPP_MB_CUR_MAX_capture() { return int(MB_CUR_MAX); }
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// typedef size_t _CPP_size_t_capture;
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// typedef wchar_t _CPP_wchar_t_capture;
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typedef div_t _CPP_div_t_capture;
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typedef ldiv_t _CPP_ldiv_t_capture;
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namespace _C_Shadow {
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}
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} // close namespace ::_C_Swamp::
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# undef size_t
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# undef wchar_t
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# undef div_t
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# undef ldiv_t
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// <cstddef>
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// # undef NULL
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// # define NULL 0
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# undef EXIT_SUCCESS
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# define EXIT_SUCCESS (::_C_Swamp::_CPP_EXIT_SUCCESS_capture)
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# undef EXIT_FAILURE
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# define EXIT_FAILURE (::_C_Swamp::_CPP_EXIT_FAILURE_capture)
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# undef RAND_MAX
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# define RAND_MAX (::_C_Swamp::_CPP_RAND_MAX_capture)
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# undef MB_CUR_MAX
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# define MB_CUR_MAX (::_C_Swamp::_CPP_MB_CUR_MAX_capture())
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# undef atof
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# undef atoi
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# undef atol
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# undef strtod
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# undef strtol
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# undef strtoul
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# undef rand
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# undef srand
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# undef calloc
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# undef free
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# undef malloc
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# undef realloc
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# undef abort
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# undef atexit
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# undef exit
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# undef getenv
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# undef system
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# undef bsearch
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# undef qsort
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# undef abs
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# undef div
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# undef labs
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# undef ldiv
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# undef mblen
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# undef mbtowc
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# undef wctomb
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# undef mbstowcs
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# undef wcstombs
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namespace _C_Swamp {
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namespace _C_Shadow {
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// these come from <cstddef>
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// typedef ::_C_Swamp::_CPP_size_t_capture size_t;
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// typedef ::_C_Swamp::_CPP_wchar_t_capture wchar_t;
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}
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}
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namespace std {
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// Adopt C names into std::
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// using ::_C_Swamp::_C_Shadow::size_t;
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// using ::_C_Swamp::_C_Shadow::wchar_t;
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typedef ::_C_Swamp::_CPP_div_t_capture _CPP_div_t;
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struct div_t : _CPP_div_t {};
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typedef ::_C_Swamp::_CPP_ldiv_t_capture _CPP_ldiv_t;
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struct ldiv_t : _CPP_ldiv_t {};
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// note: div_t and ldiv_t are still POD types
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// EXIT_SUCCESS, EXIT_FAILURE, RAND_MAX, MB_CUR_MAX, NULL
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using ::_C_Swamp::atof;
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using ::_C_Swamp::atoi;
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using ::_C_Swamp::atol;
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using ::_C_Swamp::strtod;
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using ::_C_Swamp::strtol;
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using ::_C_Swamp::strtoul;
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using ::_C_Swamp::rand;
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using ::_C_Swamp::srand;
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using ::_C_Swamp::calloc;
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using ::_C_Swamp::free;
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using ::_C_Swamp::malloc;
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using ::_C_Swamp::realloc;
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void abort(); // XXX must define this correctly for C++.
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#define _FUN_OVERLOAD_BUG
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// extern "C" funs declared void f(int (*)()) overload OK with C++ funs,
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// but not if declared void f(int (*)(void)).
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#if !defined(__GNUC__) || !defined(_FUN_OVERLOAD_BUG)
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using ::_C_Swamp::atexit; // XXX must redefine this one!
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#endif
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int atexit(void (*)()); // XXX must define this.
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// More precisely, we need an extern "C" atexit() that
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// implements the correct semantics, but hides the link-name
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// atexit found in the C library, and a C++ atexit too. If
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// C and C++ calling conventions differ, each pointer must
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// be marked to be called using the proper convention.
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void exit(int __i) // XXX must define correctly for C++, like atexit().
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{ ::_C_Swamp::exit(__i); }
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using ::_C_Swamp::getenv;
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using ::_C_Swamp::system;
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// XXX note that the raw conversion between C and C++ function
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// pointers may not be portable to some targets; those targets need
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// a forwarding function.
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#if !defined(__GNUC__) || !defined(_FUN_OVERLOAD_BUG)
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using ::_C_Swamp::bsearch; // overload
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#endif
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inline void* bsearch(const void* __key, const void* __base, size_t __n,
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size_t __size, int (*__cmp)(const void*, const void*))
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{ return ::_C_Swamp::bsearch(__key,__base,__n,__size,
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reinterpret_cast< ::_C_Swamp::_C_cmp_fun_ptr>(__cmp)); } // XXX
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#if !defined(__GNUC__) || !defined(_FUN_OVERLOAD_BUG)
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using ::_C_Swamp::qsort; // overload
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#endif
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inline void qsort(void* __base, size_t __n, size_t __size,
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int (*__cmp)(const void*, const void*))
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{ return ::_C_Swamp::qsort(__base,__n,__size,
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reinterpret_cast< ::_C_Swamp::_C_cmp_fun_ptr>(__cmp)); } // XXX
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inline int abs(int __x)
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{ return __x >= 0 ? __x : -__x; }
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inline div_t div(int __n, int __d)
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{ _div_t __q; __q.quot = __n / __d; __q.rem = __n % __d; return __q; }
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inline long labs(long __x)
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{ return __x >= 0 ? __x : -__x; }
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inline ldiv_t ldiv(long __num, long __den)
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{ _ldiv_t __q; __q.quot = __n / __d; __q.rem = __n % __d; return __q; }
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using ::_C_Swamp::mblen;
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using ::_C_Swamp::mbtowc;;
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using ::_C_Swamp::wctomb;
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using ::_C_Swamp::mbstowcs;
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using ::_C_Swamp::wcstombs;
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} // close namespace std::
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namespace _C_Swamp {
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namespace _C_Shadow {
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using ::std::div_t;
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using ::std::ldiv_t;
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using ::std::abort;
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using ::std::atexit;
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using ::std::exit;
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using ::std::bsearch;
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using ::std::qsort;
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using ::std::abs;
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using ::std::div;
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using ::std::labs;
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using ::std::ldiv;
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}
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}
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# undef _IN_C_SWAMP_
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#endif
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