45 lines
1.6 KiB
C++
45 lines
1.6 KiB
C++
#pragma once
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#include "types.hpp"
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namespace session {
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// Helper function to go to/from char pointers to unsigned char pointers:
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inline const unsigned char* to_unsigned(const char* x) {
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return reinterpret_cast<const unsigned char*>(x);
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}
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inline unsigned char* to_unsigned(char* x) {
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return reinterpret_cast<unsigned char*>(x);
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}
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inline const char* from_unsigned(const unsigned char* x) {
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return reinterpret_cast<const char*>(x);
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}
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inline char* from_unsigned(unsigned char* x) {
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return reinterpret_cast<char*>(x);
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}
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// Helper function to switch between string_view and ustring_view
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inline ustring_view to_unsigned_sv(std::string_view v) {
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return {to_unsigned(v.data()), v.size()};
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}
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inline std::string_view from_unsigned_sv(ustring_view v) {
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return {from_unsigned(v.data()), v.size()};
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}
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/// Returns true if the first string is equal to the second string, compared case-insensitively.
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inline bool string_iequal(std::string_view s1, std::string_view s2) {
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return std::equal(s1.begin(), s1.end(), s2.begin(), s2.end(), [](char a, char b) {
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return std::tolower(static_cast<unsigned char>(a)) ==
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std::tolower(static_cast<unsigned char>(b));
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});
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}
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// C++20 starts_/ends_with backport
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inline constexpr bool starts_with(std::string_view str, std::string_view prefix) {
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return str.size() >= prefix.size() && str.substr(prefix.size()) == prefix;
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}
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inline constexpr bool end_with(std::string_view str, std::string_view suffix) {
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return str.size() >= suffix.size() && str.substr(str.size() - suffix.size()) == suffix;
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}
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} // namespace session
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