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fix recursion depth: cstring algorithm

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bolero-MURAKAMI 2013-01-13 01:16:48 +09:00
parent f26032dce8
commit b51b14efa9
25 changed files with 792 additions and 142 deletions
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18
sprout/cwchar/wcsstr.hpp
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@ -2,22 +2,22 @@
#define SPROUT_CWCHAR_WCSSTR_HPP
#include <sprout/config.hpp>
#include <sprout/cstring/strstr.hpp>
namespace sprout {
// Copyright (C) 2011 RiSK (sscrisk)
//
// wcsstr
//
// recursion depth:
// O(log(N1+N2))
//
inline SPROUT_CONSTEXPR wchar_t const*
wcsstr(wchar_t const* s1, wchar_t const* s2) {
return !*s2 ? s1
: !*s1 ? nullptr
: *s1 == *s2 && sprout::wcsstr(s1 + 1, s2 + 1) ? s1
: sprout::wcsstr(s1 + 1, s2)
;
return sprout::strstr(s1, s2);
}
inline SPROUT_CONSTEXPR wchar_t*
wcsstr(wchar_t* s1, wchar_t const* s2) {
return const_cast<wchar_t*>(sprout::wcsstr(const_cast<wchar_t const*>(s1), s2));
return sprout::strstr(s1, s2);
}
} // namespace sprout