https://llvm.org/bugs/show_bug.cgi?id=24313
Bug ID: 24313
Summary: priority queue should not copy comparators when
calling push_heap and pop_heap
Product: libc++
Version: unspecified
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: All Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
Created attachment 14672
--> https://llvm.org/bugs/attachment.cgi?id=14672&action=edit
Program demonstrating the extra copy operations
The implementation of std::priority_queue's push and pop methods do not force
the comparators to be passed by reference, resulting in extra copy operations.
See the attached program for example reproduction steps. The issue seems to be
due to the way that push_heap and pop_heap are called.
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