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Dedup compile check enforcement

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This commit is contained in:
Victor Zverovich 2026-02-01 19:43:51 -08:00
parent 8976e3245a
commit d04c9801a7
1 changed files with 13 additions and 10 deletions
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23
include/fmt/base.h
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@ -2314,6 +2314,15 @@ template <typename T, typename Char, type TYPE> struct native_formatter {
-> decltype(ctx.out());
};
template <bool B> constexpr bool enforce_compile_checks() {
#ifdef FMT_ENFORCE_COMPILE_STRING
static_assert(
FMT_USE_CONSTEVAL && B,
"FMT_ENFORCE_COMPILE_STRING requires format strings to use FMT_STRING");
#endif
return true;
}
template <typename T = int> constexpr auto is_locking() -> bool {
return locking<remove_cvref_t<T>>::value;
}
@ -2630,11 +2639,8 @@ template <typename... T> struct fstring {
std::is_reference<T>::value)...>() == 0,
"passing views as lvalues is disallowed");
if (FMT_USE_CONSTEVAL) parse_format_string<char>(s, checker(s, arg_pack()));
#ifdef FMT_ENFORCE_COMPILE_STRING
static_assert(
FMT_USE_CONSTEVAL && sizeof(s) != 0,
"FMT_ENFORCE_COMPILE_STRING requires format strings to use FMT_STRING");
#endif
constexpr bool unused = detail::enforce_compile_checks<sizeof(s) != 0>();
(void)unused;
}
template <typename S,
FMT_ENABLE_IF(std::is_convertible<const S&, string_view>::value)>
@ -2642,11 +2648,8 @@ template <typename... T> struct fstring {
auto sv = string_view(str);
if (FMT_USE_CONSTEVAL)
detail::parse_format_string<char>(sv, checker(sv, arg_pack()));
#ifdef FMT_ENFORCE_COMPILE_STRING
static_assert(
FMT_USE_CONSTEVAL && sizeof(s) != 0,
"FMT_ENFORCE_COMPILE_STRING requires format strings to use FMT_STRING");
#endif
constexpr bool unused = detail::enforce_compile_checks<sizeof(s) != 0>();
(void)unused;
}
template <typename S,
FMT_ENABLE_IF(std::is_base_of<detail::compile_string, S>::value&&