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Implement prefix skipping in from_chars_advanced

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재욱 2026-01-25 17:01:19 +09:00
parent 4abcd6059b
commit 456e4c5eb6
1 changed files with 8 additions and 0 deletions
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8
include/fast_float/parse_number.h
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@ -476,6 +476,14 @@ template <typename T, typename UC>
FASTFLOAT_CONSTEXPR20 from_chars_result_t<UC> FASTFLOAT_CONSTEXPR20 from_chars_result_t<UC>
from_chars_advanced(UC const *first, UC const *last, T &value, from_chars_advanced(UC const *first, UC const *last, T &value,
parse_options_t<UC> options) noexcept { parse_options_t<UC> options) noexcept {
if ((options.format_options & parse_options_t<UC>::skip_prefix) != 0) {
if ((last - first) >= 2 && *first == UC('0')) {
if ((first[1] == UC('x') || first[1] == UC('X')) ||
(first[1] == UC('b') || first[1] == UC('B'))) {
first += 2;
}
}
}
return from_chars_advanced_caller< return from_chars_advanced_caller<
size_t(is_supported_float_type<T>::value) + size_t(is_supported_float_type<T>::value) +
2 * size_t(is_supported_integer_type<T>::value)>::call(first, last, value, 2 * size_t(is_supported_integer_type<T>::value)>::call(first, last, value,