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Give useful error when misusing fmt::ptr. (#4453)

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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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Tobias Schlüter
2025-05-21 04:21:06 +09:00
committed by GitHub
parent 3ba3c390fb
commit b723c021df
1 changed files with 1 additions and 1 deletions
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2
include/fmt/format.h
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@ -3824,7 +3824,7 @@ struct formatter<T, Char, void_t<detail::format_as_result<T>>>
* auto s = fmt::format("{}", fmt::ptr(p)); * auto s = fmt::format("{}", fmt::ptr(p));
*/ */
template <typename T> auto ptr(T p) -> const void* { template <typename T> auto ptr(T p) -> const void* {
static_assert(std::is_pointer<T>::value, ""); static_assert(std::is_pointer<T>::value, "fmt::ptr used with non-pointer");
return detail::bit_cast<const void*>(p); return detail::bit_cast<const void*>(p);
} }