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Fix MSVC C++20/23 module compatibility for static_str conversion operator

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- Add explicit str() method to static_str for explicit string_view conversion
- Conditionally disable implicit operator string_view() in MSVC module mode
- This resolves C2833 error when using MAGIC_ENUM_USE_STD_MODULE with MSVC
- Non-module builds and other compilers remain unaffected
This commit is contained in:
yudaichen 2025-10-15 12:55:48 +08:00
parent 83ab7f4f57
commit 9ab59decf6
1 changed files with 10 additions and 2 deletions
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12
include/magic_enum/magic_enum.hpp
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@ -318,7 +318,14 @@ class static_str {
constexpr std::uint16_t size() const noexcept { return N; }
constexpr operator string_view() const noexcept { return {data(), size()}; }
// MSVC C++20/23 module compatibility: explicit conversion method
[[nodiscard]] constexpr string_view str() const noexcept {
return string_view(data(), size());
}
#if !defined(MAGIC_ENUM_USE_STD_MODULE) || !defined(_MSC_VER)
constexpr operator string_view() const noexcept { return str(); }
#endif
private:
template <std::uint16_t... I>
@ -886,7 +893,8 @@ inline constexpr auto max_v = (count_v<E, S> > 0) ? static_cast<U>(values_v<E, S
template <typename E, enum_subtype S, std::size_t... I>
constexpr auto names(std::index_sequence<I...>) noexcept {
constexpr auto names = std::array<string_view, sizeof...(I)>{{enum_name_v<E, values_v<E, S>[I]>...}};
// MSVC module compatibility: explicit call to str() instead of implicit conversion
constexpr auto names = std::array<string_view, sizeof...(I)>{{enum_name_v<E, values_v<E, S>[I]>.str()...}};
return names;
}