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add string::find_first_of, find_last_of

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bolero-MURAKAMI 2012-10-08 21:29:35 +09:00
parent 0651bf57d2
commit 9dd1fefa59
3 changed files with 123 additions and 3 deletions
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17
sprout/string/char_traits.hpp
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@ -105,7 +105,7 @@ namespace sprout {
}
template<typename ConstIterator>
static SPROUT_CONSTEXPR ConstIterator find(ConstIterator s, std::size_t n, char_type const& a) {
return !n ? s + 1
return !n ? s
: eq(*s, a) ? s
: find(s + 1, n - 1, a)
;
@ -141,10 +141,23 @@ namespace sprout {
typedef typename traits_type::pos_type pos_type;
typedef typename traits_type::state_type state_type;
public:
static SPROUT_CONSTEXPR char_type const* find(char_type const* s, std::size_t n, char_type const& a) {
return !n ? s
: traits_type::eq(*s, a) ? s
: find(s + 1, n - 1, a)
;
}
static SPROUT_CONSTEXPR bool is_found(char_type const* found, char_type const* last) {
return found;
return found != last;
}
#if SPROUT_USE_INDEX_ITERATOR_IMPLEMENTATION
template<typename ConstIterator>
static SPROUT_CONSTEXPR ConstIterator find(ConstIterator s, std::size_t n, char_type const& a) {
return !n ? s
: traits_type::eq(*s, a) ? s
: find(s + 1, n - 1, a)
;
}
template<typename ConstIterator>
static SPROUT_CONSTEXPR bool is_found(ConstIterator found, ConstIterator last) {
return found != last;