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* src/support/docstring.h: Add char_traits template functions for
gcc 3.3.x and older. They were first supplied with the libstdc++ of gcc 3.4. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@14685 a592a061-630c-0410-9148-cb99ea01b6c8
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@ -25,4 +25,121 @@ typedef std::basic_string<boost::uint32_t> docstring;
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}
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#if defined(__GNUC__) && defined(__GNUC_MINOR__) && __GNUC__ == 3 && __GNUC_MINOR__ < 4
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// Missing char_traits methods in gcc 3.3 and older. Taken from gcc 4.2svn.
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namespace std {
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template<typename T> void
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char_traits<T>::assign(char_type & c1, char_type const & c2)
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{
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c1 = c2;
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}
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template<typename T> bool
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char_traits<T>::eq(char_type const & c1, char_type const & c2)
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{
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return c1 == c2;
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}
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template<typename T> bool
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char_traits<T>::lt(char_type const & c1, char_type const & c2)
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{
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return c1 < c2;
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}
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template<typename T> int
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char_traits<T>::compare(char_type const * s1, char_type const * s2, std::size_t n)
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{
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for (std::size_t i = 0; i < n; ++i)
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if (lt(s1[i], s2[i]))
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return -1;
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else if (lt(s2[i], s1[i]))
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return 1;
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return 0;
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}
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template<typename T> std::size_t
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char_traits<T>::length(char_type const * p)
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{
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std::size_t i = 0;
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while (!eq(p[i], char_type()))
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++i;
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return i;
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}
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template<typename T> typename char_traits<T>::char_type const *
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char_traits<T>::find(char_type const * s, size_t n, char_type const & a)
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{
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for (std::size_t i = 0; i < n; ++i)
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if (eq(s[i], a))
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return s + i;
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return 0;
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}
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template<typename T> typename char_traits<T>::char_type *
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char_traits<T>::move(char_type * s1, char_type const * s2, std::size_t n)
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{
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return static_cast<T *>(std::memmove(s1, s2, n * sizeof(char_type)));
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}
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template<typename T> typename char_traits<T>::char_type *
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char_traits<T>::copy(char_type * s1, char_type const * s2, std::size_t n)
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{
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std::copy(s2, s2 + n, s1);
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return s1;
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}
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template<typename T> typename char_traits<T>::char_type *
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char_traits<T>::assign(char_type * s, std::size_t n, char_type a)
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{
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std::fill_n(s, n, a);
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return s;
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}
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template<typename T> typename char_traits<T>::char_type
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char_traits<T>::to_char_type(int_type const & c)
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{
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return static_cast<char_type>(c);
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}
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template<typename T> typename char_traits<T>::int_type
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char_traits<T>::to_int_type(char_type const & c)
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{
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return static_cast<int_type>(c);
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}
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template<typename T> bool
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char_traits<T>::eq_int_type(int_type const & c1, int_type const & c2)
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{
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return c1 == c2;
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}
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template<typename T> typename char_traits<T>::int_type
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char_traits<T>::eof()
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{
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return static_cast<int_type>(EOF);
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}
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template<typename T> typename char_traits<T>::int_type
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char_traits<T>::not_eof(int_type const & c)
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{
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return !eq_int_type(c, eof()) ? c : to_int_type(char_type());
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}
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}
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#endif
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#endif
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