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// Copyright Catch2 Authors
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE.txt or copy at
// https://www.boost.org/LICENSE_1_0.txt)
// SPDX-License-Identifier: BSL-1.0
#include <catch2/internal/catch_stringref.hpp>
#include <algorithm>
#include <ostream>
#include <cstring>
#include <cstdint>
namespace Catch {
StringRef::StringRef( char const* rawChars ) noexcept
: StringRef( rawChars, std::strlen(rawChars) )
{}
bool StringRef::operator<(StringRef rhs) const noexcept {
if (m_size < rhs.m_size) {
return strncmp(m_start, rhs.m_start, m_size) <= 0;
}
return strncmp(m_start, rhs.m_start, rhs.m_size) < 0;
}
int StringRef::compare( StringRef rhs ) const {
auto cmpResult =
strncmp( m_start, rhs.m_start, std::min( m_size, rhs.m_size ) );
// This means that strncmp found a difference before the strings
// ended, and we can return it directly
if ( cmpResult != 0 ) {
return cmpResult;
}
// If strings are equal up to length, then their comparison results on
// their size
if ( m_size < rhs.m_size ) {
return -1;
} else if ( m_size > rhs.m_size ) {
return 1;
} else {
return 0;
}
}
auto operator << ( std::ostream& os, StringRef str ) -> std::ostream& {
return os.write(str.data(), static_cast<std::streamsize>(str.size()));
}
std::string operator+(StringRef lhs, StringRef rhs) {
std::string ret;
ret.reserve(lhs.size() + rhs.size());
ret += lhs;
ret += rhs;
return ret;
}
auto operator+=( std::string& lhs, StringRef rhs ) -> std::string& {
lhs.append(rhs.data(), rhs.size());
return lhs;
}
} // namespace Catch
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