re2: guard against self-move-assignment in Set and FilteredRE2#616
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MarkLee131 wants to merge 1 commit intogoogle:mainfrom
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re2: guard against self-move-assignment in Set and FilteredRE2#616MarkLee131 wants to merge 1 commit intogoogle:mainfrom
MarkLee131 wants to merge 1 commit intogoogle:mainfrom
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The move assignment operators for RE2::Set and FilteredRE2 use a destroy-then-placement-new pattern. This is unsafe when this == &other because the destructor frees resources that the move constructor then tries to read from. Add a self-assignment check to both operators.
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Fix #615:
The move assignment operators for RE2::Set and FilteredRE2 use a destroy-then-placement-new pattern. This is unsafe when this == &other because the destructor frees resources that the move constructor then tries to read from.
Add a self-assignment check to both operators.