Fix for PR18735 - self-assignment for map/multimap gives incorrect results in C++03
llvm-svn: 201021
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 74cf6ff5e523fa972af797a7a05f9d9b3dddfb5a
diff --git a/include/map b/include/map
index 009e8e2..9779b70 100644
--- a/include/map
+++ b/include/map
@@ -884,10 +884,12 @@
#if __cplusplus >= 201103L
__tree_ = __m.__tree_;
#else
- __tree_.clear();
- __tree_.value_comp() = __m.__tree_.value_comp();
- __tree_.__copy_assign_alloc(__m.__tree_);
- insert(__m.begin(), __m.end());
+ if (this != &__m) {
+ __tree_.clear();
+ __tree_.value_comp() = __m.__tree_.value_comp();
+ __tree_.__copy_assign_alloc(__m.__tree_);
+ insert(__m.begin(), __m.end());
+ }
#endif
return *this;
}
@@ -1616,10 +1618,12 @@
#if __cplusplus >= 201103L
__tree_ = __m.__tree_;
#else
- __tree_.clear();
- __tree_.value_comp() = __m.__tree_.value_comp();
- __tree_.__copy_assign_alloc(__m.__tree_);
- insert(__m.begin(), __m.end());
+ if (this != &__m) {
+ __tree_.clear();
+ __tree_.value_comp() = __m.__tree_.value_comp();
+ __tree_.__copy_assign_alloc(__m.__tree_);
+ insert(__m.begin(), __m.end());
+ }
#endif
return *this;
}