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/*
* Copyright 2021 Google LLC.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkStringView_DEFINED
#define SkStringView_DEFINED
#include <cstring>
#include <string_view>
namespace skstd {
// C++20 additions
inline constexpr bool starts_with(std::string_view str, std::string_view prefix) {
if (prefix.length() > str.length()) {
return false;
}
return prefix.length() == 0 || !memcmp(str.data(), prefix.data(), prefix.length());
}
inline constexpr bool starts_with(std::string_view str, std::string_view::value_type c) {
return !str.empty() && str.front() == c;
}
inline constexpr bool ends_with(std::string_view str, std::string_view suffix) {
if (suffix.length() > str.length()) {
return false;
}
return suffix.length() == 0 || !memcmp(str.data() + str.length() - suffix.length(),
suffix.data(), suffix.length());
}
inline constexpr bool ends_with(std::string_view str, std::string_view::value_type c) {
return !str.empty() && str.back() == c;
}
// C++23 additions
inline constexpr bool contains(std::string_view str, std::string_view needle) {
return str.find(needle) != std::string_view::npos;
}
inline constexpr bool contains(std::string_view str, std::string_view::value_type c) {
return str.find(c) != std::string_view::npos;
}
} // namespace skstd
#endif
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