Give useful error when misusing fmt::ptr.#4453
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vitaut merged 1 commit intofmtlib:masterfrom May 20, 2025
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static_assert(bla, "") prints an empty message but not the condition with at least MSVC. Add an informative message.
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Merged, thanks |
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static_assert(bla, "") prints an empty message but not the condition with MSVC. Add an informative message.
E.g.
int i; fmt::print("{}", fmt::ptr(i))will print the empty message from the static_assert and the code location, but not the static_assert's condition. This patch makes it print a useful message.
I audited all static_asserts, and this appears to be the only user-facing static_assert that didn't contain a message.