leaktracer - 2.4-6.1 main

LeakTracer traces calls to new and delete, and reports
inconsistencies in the C++-level memory-management.
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It has limitations (eg. when you override the new and delete
operators yourself), but is very easy to use (eg. compared to more
complete tools like mpatrol), traces the C++ level (unlike most other
tools), and gives pretty good results.
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It uses gdb to display source-file information.