c_locale.h: Change ::malloc() to new char[].
2004-01-29 Stephen M. Webb <stephen.webb@bregmasoft.com> * config/local/generic/c_locale.h: Change ::malloc() to new char[]. * config/local/gnu/c_locale.h: Change ::malloc() to new char[]. * include/bits/stl_tempbuf.h: Convert _Temporary_buffer to use std::get_temporary_buffer() instead of duplicating its code. Update to C++STYLE conventions. * include/std/std_memory.h (get_temporary_buffer): Use ::operator new() instead of std::malloc(). (return_temporary_buffer): Use ::operator delete() instead of std::free(). From-SVN: r76922
This commit is contained in:
Stephen M. Webb
Benjamin Kosnik
parent
ae8f0c1773
commit
917a9fd4d5
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@ -1,3 +1,15 @@
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2004-01-29 Stephen M. Webb <stephen.webb@bregmasoft.com>
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* config/local/generic/c_locale.h: Change ::malloc() to new char[].
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* config/local/gnu/c_locale.h: Change ::malloc() to new char[].
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* include/bits/stl_tempbuf.h: Convert _Temporary_buffer to use
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std::get_temporary_buffer() instead of duplicating its code.
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Update to C++STYLE conventions.
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* include/std/std_memory.h (get_temporary_buffer): Use ::operator
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new() instead of std::malloc().
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(return_temporary_buffer): Use ::operator delete() instead of
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std::free().
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2004-01-29 Benjamin Kosnik <bkoz@redhat.com>
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* include/bits/allocator.h: Temporary switch to new_allocator as
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@ -1,6 +1,6 @@
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// Wrapper for underlying C-language localization -*- C++ -*-
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// Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
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// Copyright (C) 2001, 2002, 2003, 2004 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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@ -39,7 +39,6 @@
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#pragma GCC system_header
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#include <clocale>
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#include <cstdlib> // get std::malloc
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#include <cstring> // get std::strlen
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#include <cstdio> // get std::snprintf or std::sprintf
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@ -61,9 +60,8 @@ namespace std
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_Tv __v, const __c_locale&, int __prec = -1)
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{
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char* __old = std::setlocale(LC_ALL, NULL);
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char* __sav = static_cast<char*>(std::malloc(std::strlen(__old) + 1));
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if (__sav)
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std::strcpy(__sav, __old);
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char* __sav = new char[std::strlen(__old) + 1];
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std::strcpy(__sav, __old);
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std::setlocale(LC_ALL, "C");
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int __ret;
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@ -79,7 +77,7 @@ namespace std
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__ret = std::sprintf(__out, __fmt, __v);
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#endif
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std::setlocale(LC_ALL, __sav);
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std::free(__sav);
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delete [] __sav;
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return __ret;
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}
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}
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@ -1,6 +1,6 @@
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// Wrapper for underlying C-language localization -*- C++ -*-
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// Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
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// Copyright (C) 2001, 2002, 2003, 2004 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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@ -39,7 +39,6 @@
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#pragma GCC system_header
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#include <cstring> // get std::strlen
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#include <cstdlib> // get std::malloc
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#include <cstdio> // get std::snprintf or std::sprintf
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#include <clocale>
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#include <langinfo.h> // For codecvt
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@ -76,9 +75,8 @@ namespace std
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_Tv __v, const __c_locale&, int __prec = -1)
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{
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char* __old = std::setlocale(LC_ALL, NULL);
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char* __sav = static_cast<char*>(std::malloc(std::strlen(__old) + 1));
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if (__sav)
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std::strcpy(__sav, __old);
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char* __sav = new char[std::strlen(__old) + 1];
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std::strcpy(__sav, __old);
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std::setlocale(LC_ALL, "C");
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#endif
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@ -99,7 +97,7 @@ namespace std
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__gnu_cxx::__uselocale(__old);
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#else
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std::setlocale(LC_ALL, __sav);
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std::free(__sav);
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delete [] __sav;
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#endif
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return __ret;
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}
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@ -1,6 +1,6 @@
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// Temporary buffer implementation -*- C++ -*-
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// Copyright (C) 2001, 2002 Free Software Foundation, Inc.
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// Copyright (C) 2001, 2002, 2004 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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@ -61,88 +61,107 @@
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#ifndef _TEMPBUF_H
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#define _TEMPBUF_H 1
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#include <memory>
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namespace std
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{
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/**
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* @if maint
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* This class is used in two places: stl_algo.h and ext/memory,
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* where it is wrapped as the temporary_buffer class. See
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* temporary_buffer docs for more notes.
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* @endif
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*/
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template<typename _ForwardIterator, typename _Tp>
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class _Temporary_buffer
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{
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// concept requirements
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__glibcxx_class_requires(_ForwardIterator, _ForwardIteratorConcept)
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/**
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* @if maint
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* This class is used in two places: stl_algo.h and ext/memory, where it
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* is wrapped as the temporary_buffer class. See temporary_buffer docs for
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* more notes.
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* @endif
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*/
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template <class _ForwardIterator, class _Tp>
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class _Temporary_buffer
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{
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// concept requirements
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__glibcxx_class_requires(_ForwardIterator, _ForwardIteratorConcept)
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public:
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typedef _Tp value_type;
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typedef value_type* pointer;
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typedef pointer iterator;
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typedef ptrdiff_t size_type;
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protected:
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size_type _M_original_len;
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size_type _M_len;
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pointer _M_buffer;
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void
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_M_initialize_buffer(const _Tp&, __true_type) { }
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ptrdiff_t _M_original_len;
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ptrdiff_t _M_len;
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_Tp* _M_buffer;
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void
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_M_initialize_buffer(const _Tp& val, __false_type)
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{ std::uninitialized_fill_n(_M_buffer, _M_len, val); }
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public:
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/// As per Table mumble.
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size_type
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size() const
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{ return _M_len; }
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/// Returns the size requested by the constructor; may be >size().
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size_type
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requested_size() const
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{ return _M_original_len; }
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/// As per Table mumble.
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iterator
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begin()
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{ return _M_buffer; }
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/// As per Table mumble.
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iterator
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end()
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{ return _M_buffer + _M_len; }
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/**
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* Constructs a temporary buffer of a size somewhere between
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* zero and the size of the given range.
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*/
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_Temporary_buffer(_ForwardIterator __first, _ForwardIterator __last);
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~_Temporary_buffer()
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{
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std::_Destroy(_M_buffer, _M_buffer + _M_len);
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std::return_temporary_buffer(_M_buffer);
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}
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private:
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// Disable copy constructor and assignment operator.
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_Temporary_buffer(const _Temporary_buffer&);
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void operator=(const _Temporary_buffer&);
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};
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// this is basically get_temporary_buffer() all over again
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void _M_allocate_buffer() {
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_M_original_len = _M_len;
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_M_buffer = 0;
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template<typename _ForwardIterator, typename _Tp>
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_Temporary_buffer<_ForwardIterator, _Tp>::
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_Temporary_buffer(_ForwardIterator __first, _ForwardIterator __last)
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: _M_original_len(std::distance(__first, __last)),
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_M_len(0) , _M_buffer(0)
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{
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// Workaround for a __type_traits bug in the pre-7.3 compiler.
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typedef typename __type_traits<_Tp>::has_trivial_default_constructor
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_Trivial;
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if (_M_len > (ptrdiff_t)(INT_MAX / sizeof(_Tp)))
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_M_len = INT_MAX / sizeof(_Tp);
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while (_M_len > 0) {
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_M_buffer = (_Tp*) malloc(_M_len * sizeof(_Tp));
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if (_M_buffer)
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break;
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_M_len /= 2;
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}
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}
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void _M_initialize_buffer(const _Tp&, __true_type) {}
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void _M_initialize_buffer(const _Tp& val, __false_type) {
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std::uninitialized_fill_n(_M_buffer, _M_len, val);
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}
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public:
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/// As per Table mumble.
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ptrdiff_t size() const { return _M_len; }
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/// Returns the size requested by the constructor; may be >size().
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ptrdiff_t requested_size() const { return _M_original_len; }
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/// As per Table mumble.
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_Tp* begin() { return _M_buffer; }
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/// As per Table mumble.
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_Tp* end() { return _M_buffer + _M_len; }
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_Temporary_buffer(_ForwardIterator __first, _ForwardIterator __last) {
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// Workaround for a __type_traits bug in the pre-7.3 compiler.
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typedef typename __type_traits<_Tp>::has_trivial_default_constructor
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_Trivial;
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try {
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_M_len = std::distance(__first, __last);
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_M_allocate_buffer();
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if (_M_len > 0)
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_M_initialize_buffer(*__first, _Trivial());
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}
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catch(...)
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try
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{
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pair<pointer, size_type> __p(get_temporary_buffer<value_type>(_M_original_len));
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_M_buffer = __p.first;
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_M_len = __p.second;
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if (_M_len > 0)
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_M_initialize_buffer(*__first, _Trivial());
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}
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catch(...)
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{
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std::free(_M_buffer);
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std::return_temporary_buffer(_M_buffer);
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_M_buffer = 0;
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_M_len = 0;
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__throw_exception_again;
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}
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}
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~_Temporary_buffer() {
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std::_Destroy(_M_buffer, _M_buffer + _M_len);
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std::free(_M_buffer);
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}
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private:
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// Disable copy constructor and assignment operator.
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_Temporary_buffer(const _Temporary_buffer&) {}
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void operator=(const _Temporary_buffer&) {}
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};
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}
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} // namespace std
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#endif /* _TEMPBUF_H */
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namespace std
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{
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// uninitialized_copy
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template<typename _InputIterator, typename _ForwardIterator>
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inline _ForwardIterator
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__uninitialized_copy_aux(_InputIterator __first, _InputIterator __last,
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@ -76,17 +74,18 @@ namespace std
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{ return std::copy(__first, __last, __result); }
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template<typename _InputIterator, typename _ForwardIterator>
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_ForwardIterator
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inline _ForwardIterator
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__uninitialized_copy_aux(_InputIterator __first, _InputIterator __last,
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_ForwardIterator __result,
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__false_type)
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{
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_ForwardIterator __cur = __result;
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try {
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for ( ; __first != __last; ++__first, ++__cur)
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std::_Construct(&*__cur, *__first);
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return __cur;
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}
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try
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{
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for ( ; __first != __last; ++__first, ++__cur)
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std::_Construct(&*__cur, *__first);
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return __cur;
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}
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catch(...)
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{
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std::_Destroy(__result, __cur);
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@ -105,7 +104,8 @@ namespace std
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*/
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template<typename _InputIterator, typename _ForwardIterator>
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inline _ForwardIterator
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uninitialized_copy(_InputIterator __first, _InputIterator __last, _ForwardIterator __result)
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uninitialized_copy(_InputIterator __first, _InputIterator __last,
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_ForwardIterator __result)
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{
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typedef typename iterator_traits<_ForwardIterator>::value_type _ValueType;
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typedef typename __type_traits<_ValueType>::is_POD_type _Is_POD;
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|
@ -131,13 +131,15 @@ namespace std
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// destructor is trivial.
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template<typename _ForwardIterator, typename _Tp>
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inline void
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__uninitialized_fill_aux(_ForwardIterator __first, _ForwardIterator __last,
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__uninitialized_fill_aux(_ForwardIterator __first,
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_ForwardIterator __last,
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const _Tp& __x, __true_type)
|
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{ std::fill(__first, __last, __x); }
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template<typename _ForwardIterator, typename _Tp>
|
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void
|
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__uninitialized_fill_aux(_ForwardIterator __first, _ForwardIterator __last,
|
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__uninitialized_fill_aux(_ForwardIterator __first,
|
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_ForwardIterator __last,
|
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const _Tp& __x, __false_type)
|
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{
|
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_ForwardIterator __cur = __first;
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|
|
@ -163,7 +165,8 @@ namespace std
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*/
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template<typename _ForwardIterator, typename _Tp>
|
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inline void
|
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uninitialized_fill(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __x)
|
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uninitialized_fill(_ForwardIterator __first, _ForwardIterator __last,
|
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const _Tp& __x)
|
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{
|
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typedef typename iterator_traits<_ForwardIterator>::value_type _ValueType;
|
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typedef typename __type_traits<_ValueType>::is_POD_type _Is_POD;
|
||||
|
|
@ -176,9 +179,7 @@ namespace std
|
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inline _ForwardIterator
|
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__uninitialized_fill_n_aux(_ForwardIterator __first, _Size __n,
|
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const _Tp& __x, __true_type)
|
||||
{
|
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return std::fill_n(__first, __n, __x);
|
||||
}
|
||||
{ return std::fill_n(__first, __n, __x); }
|
||||
|
||||
template<typename _ForwardIterator, typename _Size, typename _Tp>
|
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_ForwardIterator
|
||||
|
|
@ -186,11 +187,12 @@ namespace std
|
|||
const _Tp& __x, __false_type)
|
||||
{
|
||||
_ForwardIterator __cur = __first;
|
||||
try {
|
||||
for ( ; __n > 0; --__n, ++__cur)
|
||||
std::_Construct(&*__cur, __x);
|
||||
return __cur;
|
||||
}
|
||||
try
|
||||
{
|
||||
for ( ; __n > 0; --__n, ++__cur)
|
||||
std::_Construct(&*__cur, __x);
|
||||
return __cur;
|
||||
}
|
||||
catch(...)
|
||||
{
|
||||
std::_Destroy(__first, __cur);
|
||||
|
|
@ -224,10 +226,13 @@ namespace std
|
|||
// copies [first2, last2) into
|
||||
// [result, result + (last1 - first1) + (last2 - first2)).
|
||||
|
||||
template<typename _InputIterator1, typename _InputIterator2, typename _ForwardIterator>
|
||||
template<typename _InputIterator1, typename _InputIterator2,
|
||||
typename _ForwardIterator>
|
||||
inline _ForwardIterator
|
||||
__uninitialized_copy_copy(_InputIterator1 __first1, _InputIterator1 __last1,
|
||||
_InputIterator2 __first2, _InputIterator2 __last2,
|
||||
__uninitialized_copy_copy(_InputIterator1 __first1,
|
||||
_InputIterator1 __last1,
|
||||
_InputIterator2 __first2,
|
||||
_InputIterator2 __last2,
|
||||
_ForwardIterator __result)
|
||||
{
|
||||
_ForwardIterator __mid = std::uninitialized_copy(__first1, __last1, __result);
|
||||
|
|
@ -270,10 +275,12 @@ namespace std
|
|||
_ForwardIterator __first2, _ForwardIterator __last2,
|
||||
const _Tp& __x)
|
||||
{
|
||||
_ForwardIterator __mid2 = std::uninitialized_copy(__first1, __last1, __first2);
|
||||
try {
|
||||
std::uninitialized_fill(__mid2, __last2, __x);
|
||||
}
|
||||
_ForwardIterator __mid2 = std::uninitialized_copy(__first1, __last1,
|
||||
__first2);
|
||||
try
|
||||
{
|
||||
std::uninitialized_fill(__mid2, __last2, __x);
|
||||
}
|
||||
catch(...)
|
||||
{
|
||||
std::_Destroy(__first2, __mid2);
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
// <memory> -*- C++ -*-
|
||||
|
||||
// Copyright (C) 2001, 2002 Free Software Foundation, Inc.
|
||||
// Copyright (C) 2001, 2002, 2004 Free Software Foundation, Inc.
|
||||
//
|
||||
// This file is part of the GNU ISO C++ Library. This library is free
|
||||
// software; you can redistribute it and/or modify it under the
|
||||
|
|
@ -78,33 +78,36 @@ namespace std
|
|||
|
||||
while (__len > 0)
|
||||
{
|
||||
_Tp* __tmp = (_Tp*) std::malloc((std::size_t)__len * sizeof(_Tp));
|
||||
_Tp* __tmp = static_cast<_Tp*>(::operator new(__len * sizeof(_Tp),
|
||||
nothrow));
|
||||
if (__tmp != 0)
|
||||
return pair<_Tp*, ptrdiff_t>(__tmp, __len);
|
||||
__len /= 2;
|
||||
}
|
||||
return pair<_Tp*, ptrdiff_t>((_Tp*)0, 0);
|
||||
return pair<_Tp*, ptrdiff_t>(static_cast<_Tp*>(0), 0);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This is a mostly-useless wrapper around malloc().
|
||||
* @brief Allocates a temporary buffer.
|
||||
* @param len The number of objects of type Tp.
|
||||
* @return See full description.
|
||||
* @return See full description.
|
||||
*
|
||||
* Reinventing the wheel, but this time with prettier spokes!
|
||||
*
|
||||
* This function tries to obtain storage for @c len adjacent Tp objects.
|
||||
* The objects themselves are not constructed, of course. A pair<> is
|
||||
* returned containing "the buffer s address and capacity (in the units of
|
||||
* sizeof(Tp)), or a pair of 0 values if no storage can be obtained."
|
||||
* Note that the capacity obtained may be less than that requested if the
|
||||
* memory is unavailable; you should compare len with the .second return
|
||||
* value.
|
||||
* This function tries to obtain storage for @c len adjacent Tp
|
||||
* objects. The objects themselves are not constructed, of course.
|
||||
* A pair<> is returned containing "the buffer s address and
|
||||
* capacity (in the units of sizeof(Tp)), or a pair of 0 values if
|
||||
* no storage can be obtained." Note that the capacity obtained
|
||||
* may be less than that requested if the memory is unavailable;
|
||||
* you should compare len with the .second return value.
|
||||
*
|
||||
* Provides the nothrow exception guarantee.
|
||||
*/
|
||||
template<typename _Tp>
|
||||
inline pair<_Tp*,ptrdiff_t>
|
||||
get_temporary_buffer(ptrdiff_t __len)
|
||||
{ return std::__get_temporary_buffer(__len, (_Tp*) 0); }
|
||||
{ return std::__get_temporary_buffer(__len, static_cast<_Tp*>(0)); }
|
||||
|
||||
/**
|
||||
* @brief The companion to get_temporary_buffer().
|
||||
|
|
@ -116,12 +119,12 @@ namespace std
|
|||
template<typename _Tp>
|
||||
void
|
||||
return_temporary_buffer(_Tp* __p)
|
||||
{ std::free(__p); }
|
||||
{ ::operator delete(__p, nothrow); }
|
||||
|
||||
/**
|
||||
* A wrapper class to provide auto_ptr with reference semantics. For
|
||||
* example, an auto_ptr can be assigned (or constructed from) the result of
|
||||
* a function which returns an auto_ptr by value.
|
||||
* A wrapper class to provide auto_ptr with reference semantics.
|
||||
* For example, an auto_ptr can be assigned (or constructed from)
|
||||
* the result of a function which returns an auto_ptr by value.
|
||||
*
|
||||
* All the auto_ptr_ref stuff should happen behind the scenes.
|
||||
*/
|
||||
|
|
@ -140,23 +143,25 @@ namespace std
|
|||
*
|
||||
* The Standard says:
|
||||
* <pre>
|
||||
* An @c auto_ptr owns the object it holds a pointer to. Copying an
|
||||
* @c auto_ptr copies the pointer and transfers ownership to the destination.
|
||||
* If more than one @c auto_ptr owns the same object at the same time the
|
||||
* behavior of the program is undefined.
|
||||
* An @c auto_ptr owns the object it holds a pointer to. Copying
|
||||
* an @c auto_ptr copies the pointer and transfers ownership to the
|
||||
* destination. If more than one @c auto_ptr owns the same object
|
||||
* at the same time the behavior of the program is undefined.
|
||||
*
|
||||
* The uses of @c auto_ptr include providing temporary exception-safety for
|
||||
* dynamically allocated memory, passing ownership of dynamically allocated
|
||||
* memory to a function, and returning dynamically allocated memory from a
|
||||
* function. @c auto_ptr does not meet the CopyConstructible and Assignable
|
||||
* requirements for Standard Library <a href="tables.html#65">container</a>
|
||||
* elements and thus instantiating a Standard Library container with an
|
||||
* @c auto_ptr results in undefined behavior.
|
||||
* The uses of @c auto_ptr include providing temporary
|
||||
* exception-safety for dynamically allocated memory, passing
|
||||
* ownership of dynamically allocated memory to a function, and
|
||||
* returning dynamically allocated memory from a function. @c
|
||||
* auto_ptr does not meet the CopyConstructible and Assignable
|
||||
* requirements for Standard Library <a
|
||||
* href="tables.html#65">container</a> elements and thus
|
||||
* instantiating a Standard Library container with an @c auto_ptr
|
||||
* results in undefined behavior.
|
||||
* </pre>
|
||||
* Quoted from [20.4.5]/3.
|
||||
*
|
||||
* Good examples of what can and cannot be done with auto_ptr can be found
|
||||
* in the libstdc++ testsuite.
|
||||
* Good examples of what can and cannot be done with auto_ptr can
|
||||
* be found in the libstdc++ testsuite.
|
||||
*
|
||||
* @if maint
|
||||
* _GLIBCXX_RESOLVE_LIB_DEFECTS
|
||||
|
|
@ -196,7 +201,8 @@ namespace std
|
|||
* @brief An %auto_ptr can be constructed from another %auto_ptr.
|
||||
* @param a Another %auto_ptr of a different but related type.
|
||||
*
|
||||
* A pointer-to-Tp1 must be convertible to a pointer-to-Tp/element_type.
|
||||
* A pointer-to-Tp1 must be convertible to a
|
||||
* pointer-to-Tp/element_type.
|
||||
*
|
||||
* This object now @e owns the object previously owned by @a a,
|
||||
* which has given up ownsership.
|
||||
|
|
@ -238,9 +244,9 @@ namespace std
|
|||
}
|
||||
|
||||
/**
|
||||
* When the %auto_ptr goes out of scope, the object it owns is deleted.
|
||||
* If it no longer owns anything (i.e., @c get() is @c NULL), then this
|
||||
* has no effect.
|
||||
* When the %auto_ptr goes out of scope, the object it owns is
|
||||
* deleted. If it no longer owns anything (i.e., @c get() is
|
||||
* @c NULL), then this has no effect.
|
||||
*
|
||||
* @if maint
|
||||
* The C++ standard says there is supposed to be an empty throw
|
||||
|
|
@ -284,8 +290,8 @@ namespace std
|
|||
* @return The raw pointer being managed.
|
||||
*
|
||||
* You can get a copy of the pointer that this object owns, for
|
||||
* situations such as passing to a function which only accepts a raw
|
||||
* pointer.
|
||||
* situations such as passing to a function which only accepts
|
||||
* a raw pointer.
|
||||
*
|
||||
* @note This %auto_ptr still owns the memory.
|
||||
*/
|
||||
|
|
@ -297,8 +303,8 @@ namespace std
|
|||
* @return The raw pointer being managed.
|
||||
*
|
||||
* You can get a copy of the pointer that this object owns, for
|
||||
* situations such as passing to a function which only accepts a raw
|
||||
* pointer.
|
||||
* situations such as passing to a function which only accepts
|
||||
* a raw pointer.
|
||||
*
|
||||
* @note This %auto_ptr no longer owns the memory. When this object
|
||||
* goes out of scope, nothing will happen.
|
||||
|
|
@ -315,8 +321,8 @@ namespace std
|
|||
* @brief Forcibly deletes the managed object.
|
||||
* @param p A pointer (defaults to NULL).
|
||||
*
|
||||
* This object now @e owns the object pointed to by @a p. The previous
|
||||
* object has been deleted.
|
||||
* This object now @e owns the object pointed to by @a p. The
|
||||
* previous object has been deleted.
|
||||
*/
|
||||
void
|
||||
reset(element_type* __p = 0) throw()
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
// { dg-do compile }
|
||||
|
||||
// Copyright (C) 2002, 2003 Free Software Foundation
|
||||
// Copyright (C) 2002, 2003, 2004 Free Software Foundation
|
||||
//
|
||||
// This file is part of the GNU ISO C++ Library. This library is free
|
||||
// software; you can redistribute it and/or modify it under the
|
||||
|
|
@ -46,5 +46,5 @@ main()
|
|||
test01();
|
||||
return 0;
|
||||
}
|
||||
// { dg-error "candidates" "" { target *-*-* } 217 }
|
||||
// { dg-error "std::auto_ptr" "" { target *-*-* } 347 }
|
||||
// { dg-error "candidates" "" { target *-*-* } 223 }
|
||||
// { dg-error "std::auto_ptr" "" { target *-*-* } 353 }
|
||||
|
|
|
|||
Loading…
Reference in New Issue