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* [gcc r9-10055] libstdc++: Initialize member in std::match_results [PR103549]
@ 2022-05-09 16:39 Jonathan Wakely
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From: Jonathan Wakely @ 2022-05-09 16:39 UTC (permalink / raw)
To: gcc-cvs, libstdc++-cvs
https://gcc.gnu.org/g:756d1581d11c583d9cbfc2e0b7ce1a095845085e
commit r9-10055-g756d1581d11c583d9cbfc2e0b7ce1a095845085e
Author: Jonathan Wakely <jwakely@redhat.com>
Date: Sat Dec 4 11:38:25 2021 +0000
libstdc++: Initialize member in std::match_results [PR103549]
This fixes a -Wuninitialized warning for std::cmatch m1, m2; m1=m2;
Also name the template parameters in the forward declaration, to get rid
of the <template-parameter-1-1> noise in diagnostics.
libstdc++-v3/ChangeLog:
PR libstdc++/103549
* include/bits/regex.h (match_results): Give names to template
parameters in first declaration.
(match_results::_M_begin): Add default member-initializer.
(cherry picked from commit 87710ec7b213245ecb194b778e97ae3a6790394f)
Diff:
---
libstdc++-v3/include/bits/regex.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libstdc++-v3/include/bits/regex.h b/libstdc++-v3/include/bits/regex.h
index 9ca4cf8a815..8fd13b2f071 100644
--- a/libstdc++-v3/include/bits/regex.h
+++ b/libstdc++-v3/include/bits/regex.h
@@ -35,7 +35,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CXX11
template<typename, typename>
class basic_regex;
- template<typename, typename>
+ template<typename _Bi_iter, typename _Alloc>
class match_results;
_GLIBCXX_END_NAMESPACE_CXX11
@@ -1970,7 +1970,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CXX11
_M_suffix()
{ return _Base_type::operator[](_Base_type::size() - 1); }
- _Bi_iter _M_begin;
+ _Bi_iter _M_begin {};
};
typedef match_results<const char*> cmatch;
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