coffee/fast_float
1
0
Fork 0
mirror of https://github.com/fastfloat/fast_float.git synced 2025-12-06 16:56:57 +08:00
Code Issues Packages Projects Releases Wiki Activity

reduce size of from_chars_result_t to 4 bytes. Cleanup for usage FASTFLOAT_ONLY_POSITIVE_C_NUMBER_WO_INF_NAN.

Browse Source
This commit is contained in:
IRainman 2025-04-09 15:22:10 +03:00
parent a591ca2fb8
commit 7c96e3a8be
3 changed files with 23 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
include/fast_float/ascii_number.h
View File

@ -582,7 +582,9 @@ parse_int_string(UC const *p, UC const *pend, T &value,
}
}
#ifndef FASTFLOAT_ONLY_POSITIVE_C_NUMBER_WO_INF_NAN
#ifdef FASTFLOAT_ONLY_POSITIVE_C_NUMBER_WO_INF_NAN
value = T(i);
#else
if (negative) {
#ifdef FASTFLOAT_VISUAL_STUDIO
#pragma warning(push)
@ -600,9 +602,7 @@ parse_int_string(UC const *p, UC const *pend, T &value,
#pragma warning(pop)
#endif
} else {
#endif
value = T(i);
#ifndef FASTFLOAT_ONLY_POSITIVE_C_NUMBER_WO_INF_NAN
}
#endif

26
include/fast_float/float_common.h
View File

@ -33,29 +33,29 @@
namespace fast_float {
enum class chars_format : uint64_t;
enum class chars_format : uint8_t;
#ifndef FASTFLOAT_ONLY_POSITIVE_C_NUMBER_WO_INF_NAN
namespace detail {
constexpr chars_format basic_json_fmt = chars_format(1 << 5);
constexpr chars_format basic_fortran_fmt = chars_format(1 << 6);
constexpr chars_format basic_json_fmt = chars_format(1 << 4);
constexpr chars_format basic_fortran_fmt = chars_format(1 << 5);
} // namespace detail
#endif
enum class chars_format : uint64_t {
enum class chars_format : uint8_t {
scientific = 1 << 0,
fixed = 1 << 2,
fixed = 1 << 1,
general = fixed | scientific,
hex = 1 << 3,
hex = 1 << 2,
#ifndef FASTFLOAT_ONLY_POSITIVE_C_NUMBER_WO_INF_NAN
no_infnan = 1 << 4,
no_infnan = 1 << 3,
// RFC 8259: https://datatracker.ietf.org/doc/html/rfc8259#section-6
json = uint64_t(detail::basic_json_fmt) | general | no_infnan,
// Extension of RFC 8259 where, e.g., "inf" and "nan" are allowed.
json_or_infnan = uint64_t(detail::basic_json_fmt) | general,
fortran = uint64_t(detail::basic_fortran_fmt) | general,
allow_leading_plus = 1 << 7,
skip_white_space = 1 << 8,
allow_leading_plus = 1 << 6,
skip_white_space = 1 << 7,
#endif
};
@ -70,14 +70,18 @@ template <typename UC> struct parse_options_t {
FASTFLOAT_CONSTEXPR20 explicit parse_options_t(
chars_format fmt = chars_format::general, UC dot = UC('.'),
int const b = 10) noexcept
: format(fmt), decimal_point(dot), base(b) {}
: format(fmt), decimal_point(dot), base(uint8_t(b)) {
#ifdef FASTFLOAT_ONLY_POSITIVE_C_NUMBER_WO_INF_NAN
assert(b >= 2 && b <= 36);
#endif
}
/** Which number formats are accepted */
chars_format format;
/** The character used as decimal point */
UC decimal_point;
/** The base used for integers */
uint32_t base; /* only allowed from 2 to 36 */
uint8_t base; /* only allowed from 2 to 36 */
FASTFLOAT_ASSUME(base >= 2 && base <= 36);
};

14
include/fast_float/parse_number.h
View File

@ -378,20 +378,16 @@ from_chars_int_advanced(UC const *first, UC const *last, T &value,
first++;
}
}
#else
// We are in parser code with external loop that checks bounds.
FASTFLOAT_ASSUME(first < last);
#endif
if (
#ifndef FASTFLOAT_ONLY_POSITIVE_C_NUMBER_WO_INF_NAN
first == last ||
#endif
options.base < 2 || options.base > 36) {
if (first == last || options.base < 2 || options.base > 36) {
from_chars_result_t<UC> answer;
answer.ec = std::errc::invalid_argument;
answer.ptr = first;
return answer;
}
#else
// We are in parser code with external loop that checks bounds.
FASTFLOAT_ASSUME(first < last);
#endif
return parse_int_string(first, last, value, options);
}