CODEWITHSUNDEEP
c++debuggingvisual-studio-2008mallocheap-memory
Swiss Frank
Swiss Frank

Reputation: 2422

_CRTDBG_MAP_ALLOC gives no output at all

In debugging a Visual Studio 2008 program, I wanted the heap debugging information as described on the manual page for _CrtDumpMemoryLeaks() and related pages. However I was getting no debug info whatsoever of the format:

{4868} normal block at 0x04B82DF0, 69 bytes long.
Data: <    -   4       > B0 B6 F1 00 2D 00 00 00 34 00 00 00 01 00 00 00

Many people ask why they don't see file names/line numbers in this dump, but I wasn't even getting the dump WITHOUT file names/line numbers.

It was especially curious as I recalled getting it "for free" before I even needed it in the early days of my project.

Upvotes: 0

Views: 272

Answers (1)

Swiss Frank
Swiss Frank

Reputation: 2422

It turned out that that output comes when you call exit(), but I had changed my program to call ExitProcess() rather than go through the trouble of killing all the sub-threads that otherwise would have kept running.

I added code to kill my sub-threads, and just call exit() now, and have the output.

Upvotes: 1

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