36 lines
923 B
C++
36 lines
923 B
C++
#include "StarLexicalCast.hpp"
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namespace Star {
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void throwLexicalCastError(std::errc ec, const char* first, const char* last) {
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StringView str(first, last - first);
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if (ec == std::errc::invalid_argument)
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throw BadLexicalCast(strf("Lexical cast failed on '{}' (invalid argument)", str));
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else
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throw BadLexicalCast(strf("Lexical cast failed on '{}'", str));
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}
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template <>
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bool tryLexicalCast(bool& result, const char* first, const char* last) {
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size_t len = last - first;
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if (strncmp(first, "true", len) == 0)
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result = true;
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else if (strncmp(first, "false", len) != 0)
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return false;
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result = false;
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return true;
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}
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template <>
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bool lexicalCast(const char* first, const char* last) {
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size_t len = last - first;
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if (strncmp(first, "true", len) == 0)
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return true;
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else if (strncmp(first, "false", len) != 0)
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throwLexicalCastError(std::errc(), first, last);
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return false;
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}
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} |