fmtlib/fmt
1
0
Fork 1
mirror of https://github.com/fmtlib/fmt.git synced 2025-06-24 17:01:42 +02:00
Code Issues Packages Projects Releases Wiki Activity

Replace memset with constexpr fill_n in bigint::align (#4471)

Browse Source 
Use fill_n in place of memset in bigint::align to respect constexpr.
This commit is contained in:
Tomek-Stolarczyk
2025-06-23 19:18:16 -04:00
committed by GitHub
parent 571c02d475
commit 953cffa701
1 changed files with 3 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
include/fmt/format.h
View File

@ -554,6 +554,8 @@ FMT_CONSTEXPR auto fill_n(OutputIt out, Size count, const T& value)
template <typename T, typename Size>
FMT_CONSTEXPR20 auto fill_n(T* out, Size count, char value) -> T* {
if (is_constant_evaluated()) return fill_n<T*, Size, T>(out, count, value);
static_assert(sizeof(T) == 1,
"sizeof(T) must be 1 to use char for initialization");
std::memset(out, value, to_unsigned(count));
return out + count;
}
@ -2782,7 +2784,7 @@ class bigint {
bigits_.resize(to_unsigned(num_bigits + exp_difference));
for (int i = num_bigits - 1, j = i + exp_difference; i >= 0; --i, --j)
bigits_[j] = bigits_[i];
memset(bigits_.data(), 0, to_unsigned(exp_difference) * sizeof(bigit));
fill_n(bigits_.data(), to_unsigned(exp_difference), 0U);
exp_ -= exp_difference;
}