fix: error: invalid 'static_cast' from type 'fmt::v12::locale_ref' to type 'bool'#4627
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vitaut merged 1 commit intofmtlib:masterfrom Dec 9, 2025
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Hi,
i tried to use
fmt::gmtimewith locale support disabled#define FMT_USE_LOCALE 0.During compilation I get the following error:
error: invalid 'static_cast' from type 'fmt::v12::locale_ref' to type 'bool'This error can be fixed by adding a bool operator to
locale_ref. I'm not sure if my implementation is correct. At least I can see thatfmt::format("{:%Y-%m-%d %H:%M:%S}", fmt::gmtime(time))returns the correct time string.