Sprout/sprout/cstring/strchr.hpp
2012-10-06 00:58:56 +09:00

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#ifndef SPROUT_CSTRING_STRCHR_HPP
#define SPROUT_CSTRING_STRCHR_HPP
#include <cstddef>
#include <sprout/config.hpp>
namespace sprout {
// Copyright (C) 2011 RiSK (sscrisk)
// 7.21.5.2 strchr ŠÖ<C5A0>
inline SPROUT_CONSTEXPR char const*
strchr(char const* s, int c) {
return *s == static_cast<char>(c) ? s
: !*s ? nullptr
: sprout::strchr(s + 1, c)
;
}
inline SPROUT_CONSTEXPR char*
strchr(char* s, int c) {
return const_cast<char*>(sprout::strchr(const_cast<char const*>(s), c));
}
} // namespace sprout
#endif // #ifndef SPROUT_CSTRING_STRCHR_HPP