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commit 29dad307b5d7cfdb6626c11c8e43ebff941c950b
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Author: Jonathan Wakely <jwakely@redhat.com>
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Date: Thu Mar 11 16:43:51 2021 +0000
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libstdc++: Initialize std::normal_distribution::_M_saved [PR 99536]
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This avoids a false positive -Wmaybe-uninitialized warning, by
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initializing _M_saved on construction.
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libstdc++-v3/ChangeLog:
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PR libstdc++/99536
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* include/bits/random.h (normal_distribution): Use
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default-initializer for _M_saved and _M_saved_available.
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(cherry picked from commit 67e397660611990efd98f9e4106c1ee81f6803a4)
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diff --git a/libstdc++-v3/include/bits/random.h b/libstdc++-v3/include/bits/random.h
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index b36781ed290..3385345d273 100644
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--- a/libstdc++-v3/include/bits/random.h
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+++ b/libstdc++-v3/include/bits/random.h
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@@ -1974,12 +1974,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
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explicit
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normal_distribution(result_type __mean = result_type(0),
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result_type __stddev = result_type(1))
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- : _M_param(__mean, __stddev), _M_saved_available(false)
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+ : _M_param(__mean, __stddev)
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{ }
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explicit
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normal_distribution(const param_type& __p)
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- : _M_param(__p), _M_saved_available(false)
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+ : _M_param(__p)
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{ }
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/**
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@@ -2158,8 +2158,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
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const param_type& __p);
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param_type _M_param;
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- result_type _M_saved;
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- bool _M_saved_available;
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+ result_type _M_saved = 0;
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+ bool _M_saved_available = false;
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};
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/**
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