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Pharago 2023-04-05 03:31:35 +02:00 committed by GitHub
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5 changed files with 12 additions and 8 deletions
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4
README.md
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@ -1,4 +1,8 @@
## fast_float number parsing library: 4x faster than strtod
[![Fuzzing Status](https://oss-fuzz-build-logs.storage.googleapis.com/badges/fast_float.svg)](https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&can=1&q=proj:fast_float)
[![VS17-CI](https://github.com/fastfloat/fast_float/actions/workflows/vs17-ci.yml/badge.svg)](https://github.com/fastfloat/fast_float/actions/workflows/vs17-ci.yml)
[![Ubuntu 22.04 CI (GCC 11)](https://github.com/fastfloat/fast_float/actions/workflows/ubuntu22.yml/badge.svg)](https://github.com/fastfloat/fast_float/actions/workflows/ubuntu22.yml)
The fast_float library provides fast header-only implementations for the C++ from_chars
functions for `float` and `double` types. These functions convert ASCII strings representing

2
include/fast_float/ascii_number.h
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@ -119,7 +119,7 @@ parsed_number_string_t<TCH> parse_number_string(TCH const *p, TCH const * pend,
answer.valid = false;
answer.too_many_digits = false;
answer.negative = (*p == TCH('-'));
#if FASTFLOAT_ALLOWS_LEADING_PLUS // disabled by default
#ifdef FASTFLOAT_ALLOWS_LEADING_PLUS // disabled by default
if ((*p == TCH('-')) || (*p == TCH('+'))) {
#else
if (*p == TCH('-')) { // C++17 20.19.3.(7.1) explicitly forbids '+' sign here

4
include/fast_float/constexpr_feature_detect.h
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@ -14,13 +14,13 @@
#define FASTFLOAT_CONSTEXPR14
#endif
#if __cpp_lib_bit_cast >= 201806L
#if defined(__cpp_lib_bit_cast) && __cpp_lib_bit_cast >= 201806L
#define FASTFLOAT_HAS_BIT_CAST 1
#else
#define FASTFLOAT_HAS_BIT_CAST 0
#endif
#if __cpp_lib_is_constant_evaluated >= 201811L
#if defined(__cpp_lib_is_constant_evaluated) && __cpp_lib_is_constant_evaluated >= 201811L
#define FASTFLOAT_HAS_IS_CONSTANT_EVALUATED 1
#else
#define FASTFLOAT_HAS_IS_CONSTANT_EVALUATED 0

2
include/fast_float/float_common.h
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@ -482,7 +482,7 @@ void to_float(bool negative, adjusted_mantissa am, T &value) {
#endif
}
#if FASTFLOAT_SKIP_WHITE_SPACE // disabled by default
#ifdef FASTFLOAT_SKIP_WHITE_SPACE // disabled by default
template <typename = void>
struct space_lut {
static constexpr bool value[] = {

8
include/fast_float/parse_number.h
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@ -30,7 +30,7 @@ parse_infnan(TCH const * first, TCH const * last, T &value) noexcept {
minusSign = true;
++first;
}
#if FASTFLOAT_ALLOWS_LEADING_PLUS // disabled by default
#ifdef FASTFLOAT_ALLOWS_LEADING_PLUS // disabled by default
if (*first == TCH('+')) {
++first;
}
@ -109,7 +109,7 @@ fastfloat_really_inline bool rounds_to_nearest() noexcept {
//
// Note: This may fail to be accurate if fast-math has been
// enabled, as rounding conventions may not apply.
#if FASTFLOAT_VISUAL_STUDIO
#ifdef FASTFLOAT_VISUAL_STUDIO
# pragma warning(push)
// todo: is there a VS warning?
// see https://stackoverflow.com/questions/46079446/is-there-a-warning-for-floating-point-equality-checking-in-visual-studio-2013
@ -121,7 +121,7 @@ fastfloat_really_inline bool rounds_to_nearest() noexcept {
# pragma GCC diagnostic ignored "-Wfloat-equal"
#endif
return (fmini + 1.0f == 1.0f - fmini);
#if FASTFLOAT_VISUAL_STUDIO
#ifdef FASTFLOAT_VISUAL_STUDIO
# pragma warning(pop)
#elif defined(__clang__)
# pragma clang diagnostic pop
@ -151,7 +151,7 @@ from_chars_result_t<TCH> from_chars_advanced(TCH const * first, TCH const * last
std::is_same<TCH, char32_t>::value , "only char, wchar_t, char16_t and char32_t are supported");
from_chars_result_t<TCH> answer;
#if FASTFLOAT_SKIP_WHITE_SPACE // disabled by default
#ifdef FASTFLOAT_SKIP_WHITE_SPACE // disabled by default
while ((first != last) && fast_float::is_space(uint8_t(*first))) {
first++;
}