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authorJonathan Wakely <jwakely@redhat.com>2023-05-31 18:01:13 +0100
committerJonathan Wakely <jwakely@redhat.com>2023-05-31 20:57:31 +0100
commita239a35075ffd8b34f1db72c22998a625ff962b5 (patch)
tree6fd45419a32ad1ef03c4616ed092525b41ba1652
parent2a919c08abb2cc5aeb31abb400b3489f67467dbf (diff)
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libstdc++: Fix build for targets without _Float128 [PR109921]
My r14-1431-g7037e7b6e4ac41 change caused the _Float128 overload to be compiled unconditionally, by moving the USE_STRTOF128_FOR_FROM_CHARS check into the function body. That function should still only be compiled if the target actually supports _Float128. libstdc++-v3/ChangeLog: PR libstdc++/109921 * src/c++17/floating_from_chars.cc: Check __FLT128_MANT_DIG__ is defined before trying to use _Float128.
-rw-r--r--libstdc++-v3/src/c++17/floating_from_chars.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/libstdc++-v3/src/c++17/floating_from_chars.cc b/libstdc++-v3/src/c++17/floating_from_chars.cc
index eea8780..f1dd1037 100644
--- a/libstdc++-v3/src/c++17/floating_from_chars.cc
+++ b/libstdc++-v3/src/c++17/floating_from_chars.cc
@@ -1325,7 +1325,7 @@ _ZSt10from_charsPKcS0_RDF128_St12chars_format(const char* first,
__ieee128& value,
chars_format fmt) noexcept
__attribute__((alias ("_ZSt10from_charsPKcS0_Ru9__ieee128St12chars_format")));
-#else
+#elif defined(__FLT128_MANT_DIG__)
from_chars_result
from_chars(const char* first, const char* last, _Float128& value,
chars_format fmt) noexcept