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authorJonathan Wakely <jwakely@redhat.com>2022-06-16 14:57:32 +0100
committerJonathan Wakely <jwakely@redhat.com>2022-08-03 12:31:26 +0100
commite562236851e06091256593aa0d3fbda60a28e45b (patch)
tree911dfcbe151b67befb39f548b3bae9f0940bb54b /libstdc++-v3/include/bits/basic_string.h
parent2fd16b1c0269e24fc11b0abd188d006d4d9134c2 (diff)
libstdc++: Support constexpr global std::string for size < 15 [PR105995]
I don't think this is required by the standard, but it's easy to support. libstdc++-v3/ChangeLog: PR libstdc++/105995 * include/bits/basic_string.h (_M_use_local_data): Initialize the entire SSO buffer. * testsuite/21_strings/basic_string/cons/char/105995.cc: New test. (cherry picked from commit 98a0d72a610a87e8e383d366e50253ddcc9a51dd)
Diffstat (limited to 'libstdc++-v3/include/bits/basic_string.h')
-rw-r--r--libstdc++-v3/include/bits/basic_string.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/libstdc++-v3/include/bits/basic_string.h b/libstdc++-v3/include/bits/basic_string.h
index 6041d05815b..9777deaf2e9 100644
--- a/libstdc++-v3/include/bits/basic_string.h
+++ b/libstdc++-v3/include/bits/basic_string.h
@@ -352,7 +352,8 @@ _GLIBCXX_BEGIN_NAMESPACE_CXX11
{
#if __cpp_lib_is_constant_evaluated
if (std::is_constant_evaluated())
- _M_local_buf[0] = _CharT();
+ for (_CharT& __c : _M_local_buf)
+ __c = _CharT();
#endif
return _M_local_data();
}