fmtlib/fmt
1
0
Fork 1
mirror of https://github.com/fmtlib/fmt.git synced 2025-07-31 11:17:35 +02:00
Code Issues Packages Projects Releases Wiki Activity

Allow bit_cast to work for 80bit long double (#4246)

Browse Source
This commit is contained in:
jsirpoma
2024-11-29 11:25:21 +02:00
committed by GitHub
parent df249d8ad3
commit 385c01dc7b
1 changed files with 4 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
include/fmt/format.h
View File

@ -419,17 +419,17 @@ template <> constexpr auto num_bits<uint128_fallback>() -> int { return 128; }
// and 128-bit pointers to uint128_fallback. // and 128-bit pointers to uint128_fallback.
template <typename To, typename From, FMT_ENABLE_IF(sizeof(To) > sizeof(From))> template <typename To, typename From, FMT_ENABLE_IF(sizeof(To) > sizeof(From))>
inline auto bit_cast(const From& from) -> To { inline auto bit_cast(const From& from) -> To {
constexpr auto size = static_cast<int>(sizeof(From) / sizeof(unsigned)); constexpr auto size = static_cast<int>(sizeof(From) / sizeof(unsigned short));
struct data_t { struct data_t {
unsigned value[static_cast<unsigned>(size)]; unsigned short value[static_cast<unsigned>(size)];
} data = bit_cast<data_t>(from); } data = bit_cast<data_t>(from);
auto result = To(); auto result = To();
if (const_check(is_big_endian())) { if (const_check(is_big_endian())) {
for (int i = 0; i < size; ++i) for (int i = 0; i < size; ++i)
result = (result << num_bits<unsigned>()) | data.value[i]; result = (result << num_bits<unsigned short>()) | data.value[i];
} else { } else {
for (int i = size - 1; i >= 0; --i) for (int i = size - 1; i >= 0; --i)
result = (result << num_bits<unsigned>()) | data.value[i]; result = (result << num_bits<unsigned short>()) | data.value[i];
} }
return result; return result;
} }