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Workaround missed optimization opportunity

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This commit is contained in:
Victor Zverovich 2021-03-11 16:44:59 -08:00
parent eef4ba9c02
commit cdf877d4b1
1 changed files with 2 additions and 1 deletions
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3
include/fmt/format.h
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@ -1685,7 +1685,8 @@ template <typename OutputIt, typename Char, typename W>
FMT_CONSTEXPR FMT_INLINE OutputIt
write_int(OutputIt out, int num_digits, string_view prefix,
const basic_format_specs<Char>& specs, W write_digits) {
if (specs.width == 0 && specs.precision < 0) {
// Slightly faster check for specs.width == 0 && specs.precision == -1.
if ((specs.width | (specs.precision + 1)) == 0) {
auto it = reserve(out, to_unsigned(num_digits) + prefix.size());
if (prefix.size() != 0)
it = copy_str<Char>(prefix.begin(), prefix.end(), it);