233 lines
5.7 KiB
C++
233 lines
5.7 KiB
C++
/*
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*
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* Copyright (c) 1998-2005
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* John Maddock
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*
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* Use, modification and distribution are subject to the
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* Boost Software License, Version 1.0. (See accompanying file
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* LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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*
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*/
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/*
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* LOCATION: see http://www.boost.org for most recent version.
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* FILE regex_workarounds.cpp
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* VERSION see <boost/version.hpp>
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* DESCRIPTION: Declares Misc workarounds.
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*/
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#ifndef BOOST_REGEX_WORKAROUND_HPP
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#define BOOST_REGEX_WORKAROUND_HPP
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#include <new>
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#include <cstring>
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#include <cstdlib>
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#include <cstddef>
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#include <cassert>
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#include <cstdio>
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#include <climits>
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#include <string>
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#include <stdexcept>
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#include <iterator>
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#include <algorithm>
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#include <iosfwd>
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#include <vector>
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#include <map>
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#include <boost/limits.hpp>
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#include <boost/assert.hpp>
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#include <boost/cstdint.hpp>
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#include <boost/throw_exception.hpp>
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#include <boost/scoped_ptr.hpp>
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#include <boost/scoped_array.hpp>
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#include <boost/shared_ptr.hpp>
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#include <boost/mpl/bool_fwd.hpp>
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#ifndef BOOST_NO_STD_LOCALE
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# include <locale>
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#endif
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#if defined(BOOST_NO_STDC_NAMESPACE)
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namespace std{
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using ::sprintf; using ::strcpy; using ::strcat; using ::strlen;
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}
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#endif
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namespace boost{ namespace re_detail{
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#ifdef BOOST_NO_STD_DISTANCE
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template <class T>
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std::ptrdiff_t distance(const T& x, const T& y)
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{ return y - x; }
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#else
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using std::distance;
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#endif
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}}
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#ifdef BOOST_REGEX_NO_BOOL
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# define BOOST_REGEX_MAKE_BOOL(x) static_cast<bool>((x) ? true : false)
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#else
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# define BOOST_REGEX_MAKE_BOOL(x) static_cast<bool>(x)
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#endif
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/*****************************************************************************
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*
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* Fix broken broken namespace support:
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*
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****************************************************************************/
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#if defined(BOOST_NO_STDC_NAMESPACE) && defined(__cplusplus)
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namespace std{
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using ::ptrdiff_t;
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using ::size_t;
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using ::abs;
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using ::memset;
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using ::memcpy;
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}
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#endif
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/*****************************************************************************
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*
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* helper functions pointer_construct/pointer_destroy:
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*
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****************************************************************************/
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#ifdef __cplusplus
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namespace boost{ namespace re_detail{
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#ifdef BOOST_MSVC
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#pragma warning (push)
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#pragma warning (disable : 4100)
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#endif
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template <class T>
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inline void pointer_destroy(T* p)
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{ p->~T(); (void)p; }
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#ifdef BOOST_MSVC
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#pragma warning (pop)
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#endif
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template <class T>
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inline void pointer_construct(T* p, const T& t)
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{ new (p) T(t); }
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}} // namespaces
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#endif
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/*****************************************************************************
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*
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* helper function copy:
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*
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****************************************************************************/
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#ifdef __cplusplus
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namespace boost{ namespace re_detail{
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#if BOOST_WORKAROUND(BOOST_MSVC,>=1400) && BOOST_WORKAROUND(BOOST_MSVC, <1600) && defined(_CPPLIB_VER) && defined(BOOST_DINKUMWARE_STDLIB) && !(defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION))
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//
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// MSVC 8 will either emit warnings or else refuse to compile
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// code that makes perfectly legitimate use of std::copy, when
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// the OutputIterator type is a user-defined class (apparently all user
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// defined iterators are "unsafe"). This code works around that:
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//
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template<class InputIterator, class OutputIterator>
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inline OutputIterator copy(
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InputIterator first,
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InputIterator last,
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OutputIterator dest
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)
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{
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return stdext::unchecked_copy(first, last, dest);
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}
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template<class InputIterator1, class InputIterator2>
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inline bool equal(
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InputIterator1 first,
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InputIterator1 last,
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InputIterator2 with
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)
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{
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return stdext::unchecked_equal(first, last, with);
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}
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#elif BOOST_WORKAROUND(BOOST_MSVC, > 1500)
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//
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// MSVC 10 will either emit warnings or else refuse to compile
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// code that makes perfectly legitimate use of std::copy, when
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// the OutputIterator type is a user-defined class (apparently all user
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// defined iterators are "unsafe"). What's more Microsoft have removed their
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// non-standard "unchecked" versions, even though their still in the MS
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// documentation!! Work around this as best we can:
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//
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template<class InputIterator, class OutputIterator>
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inline OutputIterator copy(
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InputIterator first,
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InputIterator last,
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OutputIterator dest
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)
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{
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while(first != last)
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*dest++ = *first++;
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return dest;
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}
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template<class InputIterator1, class InputIterator2>
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inline bool equal(
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InputIterator1 first,
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InputIterator1 last,
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InputIterator2 with
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)
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{
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while(first != last)
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if(*first++ != *with++) return false;
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return true;
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}
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#else
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using std::copy;
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using std::equal;
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#endif
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#if BOOST_WORKAROUND(BOOST_MSVC,>=1400) && defined(__STDC_WANT_SECURE_LIB__) && __STDC_WANT_SECURE_LIB__
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// use safe versions of strcpy etc:
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using ::strcpy_s;
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using ::strcat_s;
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#else
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inline std::size_t strcpy_s(
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char *strDestination,
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std::size_t sizeInBytes,
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const char *strSource
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)
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{
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if(std::strlen(strSource)+1 > sizeInBytes)
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return 1;
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std::strcpy(strDestination, strSource);
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return 0;
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}
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inline std::size_t strcat_s(
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char *strDestination,
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std::size_t sizeInBytes,
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const char *strSource
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)
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{
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if(std::strlen(strSource) + std::strlen(strDestination) + 1 > sizeInBytes)
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return 1;
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std::strcat(strDestination, strSource);
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return 0;
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}
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#endif
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inline void overflow_error_if_not_zero(std::size_t i)
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{
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if(i)
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{
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std::overflow_error e("String buffer too small");
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boost::throw_exception(e);
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}
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}
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}} // namespaces
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#endif // __cplusplus
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#endif // include guard
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