40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
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// Copyright 2020 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "span.h"
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#include <algorithm>
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namespace crdtp {
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bool SpanLessThan(span<uint8_t> x, span<uint8_t> y) noexcept {
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auto min_size = std::min(x.size(), y.size());
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const int r = min_size == 0 ? 0 : memcmp(x.data(), y.data(), min_size);
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return (r < 0) || (r == 0 && x.size() < y.size());
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}
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bool SpanEquals(span<uint8_t> x, span<uint8_t> y) noexcept {
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auto len = x.size();
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if (len != y.size())
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return false;
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return x.data() == y.data() || len == 0 ||
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std::memcmp(x.data(), y.data(), len) == 0;
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}
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bool SpanLessThan(span<char> x, span<char> y) noexcept {
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auto min_size = std::min(x.size(), y.size());
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const int r = min_size == 0 ? 0 : memcmp(x.data(), y.data(), min_size);
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return (r < 0) || (r == 0 && x.size() < y.size());
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}
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bool SpanEquals(span<char> x, span<char> y) noexcept {
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auto len = x.size();
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if (len != y.size())
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return false;
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return x.data() == y.data() || len == 0 ||
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std::memcmp(x.data(), y.data(), len) == 0;
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}
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} // namespace crdtp
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