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| author | Jonathan Wakely <jwakely@redhat.com> | 2022-11-22 17:39:43 +0000 |
|---|---|---|
| committer | Jonathan Wakely <jwakely@redhat.com> | 2022-11-22 17:45:46 +0000 |
| commit | dfc1ea414e0cebccfcffc771ebcefa3d24c9754c (patch) | |
| tree | 4f4c71e5bc3a9a76616a0c545f549998fc961186 /libstdc++-v3/include/std/charconv | |
| parent | 6b859736bb1e707778627b2e58ef6088e475a54c (diff) | |
| download | gcc-dfc1ea414e0cebccfcffc771ebcefa3d24c9754c.zip gcc-dfc1ea414e0cebccfcffc771ebcefa3d24c9754c.tar.gz gcc-dfc1ea414e0cebccfcffc771ebcefa3d24c9754c.tar.bz2 | |
libstdc++: Replace std::isdigit and std::isxdigit in <format> [PR107817]
These functions aren't usable in constant expressions. Provide our own
implementations, based on __from_chars_alnum_to_val from <charconv>.
libstdc++-v3/ChangeLog:
PR libstdc++/107817
* include/std/charconv (__from_chars_alnum_to_val): Add
constexpr for C++20.
* include/std/format (__is_digit, __is_xdigit): New functions.
(_Spec::_S_parse_width_or_precision): Use __is_digit.
(__formatter_fp::parse): Use __is_xdigit.
Diffstat (limited to 'libstdc++-v3/include/std/charconv')
| -rw-r--r-- | libstdc++-v3/include/std/charconv | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libstdc++-v3/include/std/charconv b/libstdc++-v3/include/std/charconv index 8f02395..8b2acc5 100644 --- a/libstdc++-v3/include/std/charconv +++ b/libstdc++-v3/include/std/charconv @@ -454,7 +454,7 @@ namespace __detail // If _DecOnly is false: if the character is an alphanumeric digit, then // return its corresponding base-36 value, otherwise return a value >= 127. template<bool _DecOnly = false> - _GLIBCXX23_CONSTEXPR unsigned char + _GLIBCXX20_CONSTEXPR unsigned char __from_chars_alnum_to_val(unsigned char __c) { if _GLIBCXX17_CONSTEXPR (_DecOnly) |