Sprout/sprout/cwchar/wmemcmp.hpp
2013-02-26 17:03:30 +09:00

25 lines
664 B
C++

#ifndef SPROUT_CWCHAR_WMEMCMP_HPP
#define SPROUT_CWCHAR_WMEMCMP_HPP
#include <cstddef>
#include <sprout/config.hpp>
#include <sprout/iterator/ptr_index_iterator.hpp>
#include <sprout/algorithm/tristate_lexicographical_compare.hpp>
namespace sprout {
//
// wmemcmp
//
// recursion depth:
// O(log(N1+N2))
//
inline SPROUT_CONSTEXPR int
wmemcmp(wchar_t const* s1, wchar_t const* s2, std::size_t n) {
return sprout::tristate_lexicographical_compare(
sprout::ptr_index(s1), sprout::ptr_index(s1, n),
sprout::ptr_index(s2), sprout::ptr_index(s2, n)
);
}
} // namespace sprout
#endif // #ifndef SPROUT_CWCHAR_WMEMCMP_HPP