[857] | 1 | /*
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| 2 | *
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| 3 | * Copyright (c) 1998-2005
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| 4 | * John Maddock
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| 5 | *
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| 6 | * Use, modification and distribution are subject to the
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| 7 | * Boost Software License, Version 1.0. (See accompanying file
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| 8 | * LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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| 9 | *
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| 10 | */
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| 11 |
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| 12 | /*
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| 13 | * LOCATION: see http://www.boost.org for most recent version.
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| 14 | * FILE regex_workarounds.cpp
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| 15 | * VERSION see <boost/version.hpp>
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| 16 | * DESCRIPTION: Declares Misc workarounds.
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| 17 | */
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| 18 |
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| 19 | #ifndef BOOST_REGEX_WORKAROUND_HPP
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| 20 | #define BOOST_REGEX_WORKAROUND_HPP
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| 21 |
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| 22 |
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| 23 | #include <new>
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| 24 | #include <cstring>
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| 25 | #include <cstdlib>
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| 26 | #include <cstddef>
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| 27 | #include <cassert>
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| 28 | #include <cstdio>
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| 29 | #include <string>
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| 30 | #include <stdexcept>
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| 31 | #include <iterator>
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| 32 | #include <algorithm>
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| 33 | #include <iosfwd>
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| 34 | #include <vector>
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| 35 | #include <map>
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| 36 | #include <boost/limits.hpp>
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| 37 | #include <boost/assert.hpp>
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| 38 | #include <boost/cstdint.hpp>
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| 39 | #include <boost/throw_exception.hpp>
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| 40 | #include <boost/scoped_ptr.hpp>
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| 41 | #include <boost/scoped_array.hpp>
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| 42 | #include <boost/shared_ptr.hpp>
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| 43 | #include <boost/mpl/bool_fwd.hpp>
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| 44 | #ifndef BOOST_NO_STD_LOCALE
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| 45 | # include <locale>
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| 46 | #endif
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| 47 |
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| 48 | #if defined(BOOST_NO_STDC_NAMESPACE)
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| 49 | namespace std{
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| 50 | using ::sprintf; using ::strcpy; using ::strcat; using ::strlen;
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| 51 | }
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| 52 | #endif
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| 53 |
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| 54 | namespace boost{ namespace re_detail{
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| 55 | #ifdef BOOST_NO_STD_DISTANCE
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| 56 | template <class T>
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| 57 | std::ptrdiff_t distance(const T& x, const T& y)
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| 58 | { return y - x; }
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| 59 | #else
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| 60 | using std::distance;
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| 61 | #endif
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| 62 | }}
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| 63 |
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| 64 |
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| 65 | #ifdef BOOST_REGEX_NO_BOOL
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| 66 | # define BOOST_REGEX_MAKE_BOOL(x) static_cast<bool>((x) ? true : false)
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| 67 | #else
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| 68 | # ifdef BOOST_MSVC
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| 69 | // warning suppression with VC6:
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| 70 | # pragma warning(disable: 4800)
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| 71 | # pragma warning(disable: 4786)
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| 72 | # endif
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| 73 | # define BOOST_REGEX_MAKE_BOOL(x) static_cast<bool>(x)
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| 74 | #endif
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| 75 |
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| 76 | /*****************************************************************************
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| 77 | *
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| 78 | * Fix broken broken namespace support:
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| 79 | *
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| 80 | ****************************************************************************/
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| 81 |
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| 82 | #if defined(BOOST_NO_STDC_NAMESPACE) && defined(__cplusplus)
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| 83 |
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| 84 | namespace std{
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| 85 | using ::ptrdiff_t;
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| 86 | using ::size_t;
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| 87 | using ::abs;
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| 88 | using ::memset;
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| 89 | using ::memcpy;
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| 90 | }
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| 91 |
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| 92 | #endif
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| 93 |
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| 94 | /*****************************************************************************
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| 95 | *
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| 96 | * helper functions pointer_construct/pointer_destroy:
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| 97 | *
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| 98 | ****************************************************************************/
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| 99 |
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| 100 | #ifdef __cplusplus
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| 101 | namespace boost{ namespace re_detail{
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| 102 |
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| 103 | #ifdef BOOST_MSVC
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| 104 | #pragma warning (push)
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| 105 | #pragma warning (disable : 4100)
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| 106 | #endif
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| 107 |
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| 108 | template <class T>
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| 109 | inline void pointer_destroy(T* p)
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| 110 | { p->~T(); (void)p; }
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| 111 |
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| 112 | #ifdef BOOST_MSVC
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| 113 | #pragma warning (pop)
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| 114 | #endif
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| 115 |
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| 116 | template <class T>
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| 117 | inline void pointer_construct(T* p, const T& t)
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| 118 | { new (p) T(t); }
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| 119 |
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| 120 | }} // namespaces
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| 121 | #endif
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| 122 |
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| 123 | /*****************************************************************************
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| 124 | *
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| 125 | * helper function copy:
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| 126 | *
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| 127 | ****************************************************************************/
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| 128 |
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| 129 | #ifdef __cplusplus
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| 130 | namespace boost{ namespace re_detail{
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| 131 | #if BOOST_WORKAROUND(BOOST_MSVC,>=1400)
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| 132 | //
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| 133 | // MSVC 8 will either emit warnings or else refuse to compile
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| 134 | // code that makes perfectly legitimate use of std::copy, when
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| 135 | // the OutputIterator type is a user-defined class (apparently all user
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| 136 | // defined iterators are "unsafe"). This code works around that:
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| 137 | //
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| 138 | template<class InputIterator, class OutputIterator>
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| 139 | inline OutputIterator copy(
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| 140 | InputIterator first,
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| 141 | InputIterator last,
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| 142 | OutputIterator dest
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| 143 | )
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| 144 | {
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| 145 | return stdext::unchecked_copy(first, last, dest);
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| 146 | }
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| 147 |
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| 148 | // use safe versions of strcpy etc:
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| 149 | using ::strcpy_s;
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| 150 | using ::strcat_s;
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| 151 | #else
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| 152 | using std::copy;
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| 153 |
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| 154 | inline std::size_t strcpy_s(
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| 155 | char *strDestination,
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| 156 | std::size_t sizeInBytes,
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| 157 | const char *strSource
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| 158 | )
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| 159 | {
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| 160 | if(std::strlen(strSource)+1 > sizeInBytes)
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| 161 | return 1;
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| 162 | std::strcpy(strDestination, strSource);
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| 163 | return 0;
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| 164 | }
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| 165 | inline std::size_t strcat_s(
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| 166 | char *strDestination,
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| 167 | std::size_t sizeInBytes,
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| 168 | const char *strSource
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| 169 | )
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| 170 | {
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| 171 | if(std::strlen(strSource) + std::strlen(strDestination) + 1 > sizeInBytes)
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| 172 | return 1;
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| 173 | std::strcat(strDestination, strSource);
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| 174 | return 0;
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| 175 | }
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| 176 |
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| 177 | #endif
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| 178 |
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| 179 | inline void overflow_error_if_not_zero(std::size_t i)
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| 180 | {
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| 181 | if(i)
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| 182 | {
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| 183 | std::overflow_error e("String buffer too small");
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| 184 | boost::throw_exception(e);
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| 185 | }
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| 186 | }
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| 187 |
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| 188 | }} // namespaces
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| 189 | #endif
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| 190 |
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| 191 | #endif // include guard
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| 192 |
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