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workaround for libc++1101: no constexpr char_trais

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bolero-MURAKAMI 2013-08-06 13:25:32 +09:00
commit ce16e24637
16 changed files with 376 additions and 3 deletions
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30
sprout/string/char_traits.hpp
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@ -2,6 +2,7 @@
#define SPROUT_STRING_CHAR_TRAITS_HPP
#include <cstddef>
#include <cstdio>
#include <string>
#include <algorithm>
#include <sprout/config.hpp>
@ -66,12 +67,21 @@ namespace sprout {
static void assign(char_type& c1, char_type const& c2) SPROUT_NOEXCEPT {
impl_type::assign(c1, c2);
}
#ifdef SPROUT_NO_CXX11_CHAR_TRAITS
static SPROUT_CONSTEXPR bool eq(char_type c1, char_type c2) SPROUT_NOEXCEPT {
return c1 == c2;
}
static SPROUT_CONSTEXPR bool lt(char_type c1, char_type c2) SPROUT_NOEXCEPT {
return c1 < c2;
}
#else
static SPROUT_CONSTEXPR bool eq(char_type c1, char_type c2) SPROUT_NOEXCEPT {
return impl_type::eq(c1, c2);
}
static SPROUT_CONSTEXPR bool lt(char_type c1, char_type c2) SPROUT_NOEXCEPT {
return impl_type::lt(c1, c2);
}
#endif
static SPROUT_CONSTEXPR int compare(char_type const* s1, char_type const* s2, std::size_t n) {
return sprout::tristate_lexicographical_compare(
sprout::ptr_index(s1), sprout::ptr_index(s1, n), char_type(),
@ -102,6 +112,25 @@ namespace sprout {
static char_type* assign(char_type* s, std::size_t n, char_type a) {
return impl_type::assign(s, n, a);
}
#ifdef SPROUT_NO_CXX11_CHAR_TRAITS
static SPROUT_CONSTEXPR int_type not_eof(int_type c) SPROUT_NOEXCEPT {
return eq_int_type(c, eof()) ? int_type()
: c
;
}
static SPROUT_CONSTEXPR char_type to_char_type(int_type c) SPROUT_NOEXCEPT {
return static_cast<char_type>(c);
}
static SPROUT_CONSTEXPR int_type to_int_type(char_type c) SPROUT_NOEXCEPT {
return static_cast<int_type>(c);
}
static SPROUT_CONSTEXPR bool eq_int_type(int_type c1, int_type c2) SPROUT_NOEXCEPT {
return c1 == c2;
}
static SPROUT_CONSTEXPR int_type eof() SPROUT_NOEXCEPT {
return static_cast<int_type>(EOF);
}
#else
static SPROUT_CONSTEXPR int_type not_eof(int_type c) SPROUT_NOEXCEPT {
return impl_type::not_eof(c);
}
@ -117,6 +146,7 @@ namespace sprout {
static SPROUT_CONSTEXPR int_type eof() SPROUT_NOEXCEPT {
return impl_type::eof();
}
#endif
#if SPROUT_USE_INDEX_ITERATOR_IMPLEMENTATION
template<typename ConstIterator>
static SPROUT_CONSTEXPR int compare(char_type const* s1, ConstIterator s2, std::size_t n) {