A format_as definition that returns a std::views::filter_view, like so:
auto format_as(CodecMask m) {
return CodecMask::k_codecs | std::views::filter([&](auto c) { return m.has(c); });
}
does not compile:
CodecMask m;
m.add(Codec::H264);
fmt::println("{}", format_as(m)); // valid
fmt::pritnln("{}", m); // invalid Stack Overflow
I posted this to stack overflow originally, expecting some mistake of my own. People there suggested that this may be a bug with fmt itself, hence this issue. The explanation given there may prove to be of value.
I expected the most recent commit (274ba26) may have helped, as it appears to be related to this type of issue. It is worth noting the error message changes when tested against 10.1.1 and trunk in godbolt, but both still do fail.
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