refactor: remove usage of locale dependent std::isspace#14585
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maflcko merged 1 commit intobitcoin:masterfrom Oct 28, 2018
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refactor: remove usage of locale dependent std::isspace#14585maflcko merged 1 commit intobitcoin:masterfrom
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…..) (uint256), DecodeBase58(...), ParseMoney(...) and ParseHex(...)
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utACK 15db77f |
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utACK 15db77f |
Empact
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Oct 27, 2018
| * @param[in] c character to test | ||
| * @return true if the argument is a whitespace character; otherwise false | ||
| */ | ||
| constexpr inline bool IsSpace(char c) noexcept { |
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nit: constexpr implies inline
https://en.cppreference.com/w/cpp/language/constexpr
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| * tab ('\t'), and vertical tab ('\v'). | ||
| * | ||
| * This function is locale independent. Under the C locale this function gives the | ||
| * same result as std::isspace. |
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nit: Could be more clear: ", giving the same result as std::isspace does under the C locale."
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Could include a test comparing its output to |
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utACK 15db77f |
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ACK 15db77f Tested the same poc, other interesting locales: LC_ALL=it_IT.ISO8859-15 ./poc
0 0 1
LC_ALL=uk_UA.KOI8-U ./poc
0 1 0
LC_ALL=hu_HU.ISO8859-2 ./poc
0 0 1 |
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…isspace 15db77f Don't rely on locale dependent functions in base_blob<BITS>::SetHex(...) (uint256), DecodeBase58(...), ParseMoney(...) and ParseHex(...) (practicalswift) Pull request description: Don't rely on locale dependent function `std::isspace` in `base_blob<BITS>::SetHex(...)` (uint256), `DecodeBase58(...)`, `ParseMoney(...)` and `ParseHex(...)`. Rationale: ``` $ uname -s Darwin $ cat poc.cpp #include <iostream> #include <locale> int main(void) { setlocale(LC_ALL, ""); std::cout << std::isspace(133) << ' ' << std::isspace(154) << ' ' << std::isspace(160); std::cout << '\n'; } $ clang++ -o poc poc.cpp $ ./poc 1 0 1 $ LC_ALL=en_US ./poc 1 0 1 $ LC_ALL=C ./poc 0 0 0 $ LC_ALL=ru_RU.KOI8-R ./poc # an "interesting" locale 0 1 0 ``` Tree-SHA512: 4eafb267342b8a777da6cca07c353afd1f90f3fc1d91e01f526f1b384a2b97c1da25b7bd7dfc300655182a4eaec6a4bea855a45723ab53c750a734b60e1e3c9f
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…isspace 15db77f Don't rely on locale dependent functions in base_blob<BITS>::SetHex(...) (uint256), DecodeBase58(...), ParseMoney(...) and ParseHex(...) (practicalswift) Pull request description: Don't rely on locale dependent function `std::isspace` in `base_blob<BITS>::SetHex(...)` (uint256), `DecodeBase58(...)`, `ParseMoney(...)` and `ParseHex(...)`. Rationale: ``` $ uname -s Darwin $ cat poc.cpp #include <iostream> #include <locale> int main(void) { setlocale(LC_ALL, ""); std::cout << std::isspace(133) << ' ' << std::isspace(154) << ' ' << std::isspace(160); std::cout << '\n'; } $ clang++ -o poc poc.cpp $ ./poc 1 0 1 $ LC_ALL=en_US ./poc 1 0 1 $ LC_ALL=C ./poc 0 0 0 $ LC_ALL=ru_RU.KOI8-R ./poc # an "interesting" locale 0 1 0 ``` Tree-SHA512: 4eafb267342b8a777da6cca07c353afd1f90f3fc1d91e01f526f1b384a2b97c1da25b7bd7dfc300655182a4eaec6a4bea855a45723ab53c750a734b60e1e3c9f
dzutto
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…isspace 15db77f Don't rely on locale dependent functions in base_blob<BITS>::SetHex(...) (uint256), DecodeBase58(...), ParseMoney(...) and ParseHex(...) (practicalswift) Pull request description: Don't rely on locale dependent function `std::isspace` in `base_blob<BITS>::SetHex(...)` (uint256), `DecodeBase58(...)`, `ParseMoney(...)` and `ParseHex(...)`. Rationale: ``` $ uname -s Darwin $ cat poc.cpp #include <iostream> #include <locale> int main(void) { setlocale(LC_ALL, ""); std::cout << std::isspace(133) << ' ' << std::isspace(154) << ' ' << std::isspace(160); std::cout << '\n'; } $ clang++ -o poc poc.cpp $ ./poc 1 0 1 $ LC_ALL=en_US ./poc 1 0 1 $ LC_ALL=C ./poc 0 0 0 $ LC_ALL=ru_RU.KOI8-R ./poc # an "interesting" locale 0 1 0 ``` Tree-SHA512: 4eafb267342b8a777da6cca07c353afd1f90f3fc1d91e01f526f1b384a2b97c1da25b7bd7dfc300655182a4eaec6a4bea855a45723ab53c750a734b60e1e3c9f
UdjinM6
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Merge bitcoin bitcoin#14585, bitcoin#14599: Use functions guaranteed to be locale independent
gades
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May 9, 2022
…isspace 15db77f Don't rely on locale dependent functions in base_blob<BITS>::SetHex(...) (uint256), DecodeBase58(...), ParseMoney(...) and ParseHex(...) (practicalswift) Pull request description: Don't rely on locale dependent function `std::isspace` in `base_blob<BITS>::SetHex(...)` (uint256), `DecodeBase58(...)`, `ParseMoney(...)` and `ParseHex(...)`. Rationale: ``` $ uname -s Darwin $ cat poc.cpp #include <iostream> #include <locale> int main(void) { setlocale(LC_ALL, ""); std::cout << std::isspace(133) << ' ' << std::isspace(154) << ' ' << std::isspace(160); std::cout << '\n'; } $ clang++ -o poc poc.cpp $ ./poc 1 0 1 $ LC_ALL=en_US ./poc 1 0 1 $ LC_ALL=C ./poc 0 0 0 $ LC_ALL=ru_RU.KOI8-R ./poc # an "interesting" locale 0 1 0 ``` Tree-SHA512: 4eafb267342b8a777da6cca07c353afd1f90f3fc1d91e01f526f1b384a2b97c1da25b7bd7dfc300655182a4eaec6a4bea855a45723ab53c750a734b60e1e3c9f
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Don't rely on locale dependent function
std::isspaceinbase_blob<BITS>::SetHex(...)(uint256),DecodeBase58(...),ParseMoney(...)andParseHex(...).Rationale: