AuroraMiddleware/fmt
1
0
Fork 0
mirror of https://github.com/fmtlib/fmt.git synced 2024-11-10 05:10:05 +00:00
Code Issues Packages Projects Releases Wiki Activity

Optimize debug codegen

Browse Source
This commit is contained in:
Victor Zverovich 2024-01-09 11:43:20 -08:00
parent 97867e279a
commit 7ba6420540
1 changed files with 10 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
include/fmt/core.h
View File

@ -1529,26 +1529,28 @@ template <typename T, typename Char> struct type_is_unformattable_for;
#endif
template <bool PACKED, typename Context, typename T, FMT_ENABLE_IF(PACKED)>
FMT_CONSTEXPR FMT_INLINE auto make_arg(T& val) -> value<Context> {
FMT_CONSTEXPR auto make_arg(T& val) -> value<Context> {
using arg_type = remove_cvref_t<decltype(arg_mapper<Context>().map(val))>;
constexpr bool formattable_char =
!std::is_same<arg_type, unformattable_char>::value;
// Use enum instead of constexpr because the latter may generate code.
enum {
formattable_char = !std::is_same<arg_type, unformattable_char>::value
};
static_assert(formattable_char, "Mixing character types is disallowed.");
// Formatting of arbitrary pointers is disallowed. If you want to format a
// pointer cast it to `void*` or `const void*`. In particular, this forbids
// formatting of `[const] volatile char*` printed as bool by iostreams.
constexpr bool formattable_pointer =
!std::is_same<arg_type, unformattable_pointer>::value;
enum {
formattable_pointer = !std::is_same<arg_type, unformattable_pointer>::value
};
static_assert(formattable_pointer,
"Formatting of non-void pointers is disallowed.");
constexpr bool formattable = !std::is_same<arg_type, unformattable>::value;
enum { formattable = !std::is_same<arg_type, unformattable>::value };
#if defined(__cpp_if_constexpr)
if constexpr (!formattable) {
if constexpr (!formattable)
type_is_unformattable_for<T, typename Context::char_type> _;
}
#endif
static_assert(
formattable,