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https://github.com/bolero-MURAKAMI/Sprout.git
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22 lines
579 B
C++
22 lines
579 B
C++
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#ifndef SPROUT_CSTRING_STRNCMP_HPP
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#define SPROUT_CSTRING_STRNCMP_HPP
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#include <cstddef>
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#include <sprout/config.hpp>
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namespace sprout {
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// Copyright (C) 2011 RiSK (sscrisk)
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// 7.21.4.4 strncmp <20><EFBFBD>
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inline SPROUT_CONSTEXPR int strncmp(char const* s1, char const* s2, std::size_t n) {
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return !n || (!*s1 && !*s2) ? 0
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: !*s1 ? -1
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: !*s2 ? 1
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: *s1 == *s2 ? sprout::strncmp(s1 + 1, s2 + 1, n - 1)
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: static_cast<unsigned char>(*s1) - static_cast<unsigned char>(*s2)
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;
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_CSTRING_STRNCMP_HPP
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