https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114633
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2024-04-08
Ever confirmed|0 |1
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
--- a/libstdc++-v3/include/bits/chrono_io.h
+++ b/libstdc++-v3/include/bits/chrono_io.h
@@ -3685,6 +3685,7 @@ namespace __detail
if (!__is_failed(__err)) [[likely]]
{
long double __val{};
+#if __cpp_lib_to_chars
string __str = std::move(__buf).str();
auto __first = __str.data();
auto __last = __first + __str.size();
@@ -3694,6 +3695,9 @@ namespace __detail
if ((bool)ec || ptr != __last) [[unlikely]]
__err |= ios_base::failbit;
else
+#else
+ if (__buf >> __val)
+#endif
{
duration<long double> __fs(__val);
if constexpr (__is_floating)
