DOC: Setdflag.c Sample for _CrtSetDbgFlag Missing Tilde (~) (142420)
The information in this article applies to:
- The C Run-Time (CRT), when used with:
- Microsoft Visual C++, 32-bit Editions 4.0
- Microsoft Visual C++, 32-bit Editions 4.1
- Microsoft Visual C++, 32-bit Enterprise Edition 4.2
- Microsoft Visual C++, 32-bit Professional Edition 4.2
- Microsoft Visual C++, 32-bit Enterprise Edition 5.0
- Microsoft Visual C++, 32-bit Professional Edition 5.0
This article was previously published under Q142420 SUMMARY
The Setdflag.c sample program in the Help under _CrtSetDbgFlag(), contains
the following section of code which is missing a tilde (~) character:
/*
* Set the debug-heap flag to no longer keep freed blocks in the
* heap's linked list and turn on Debug type allocations (CLIENT)
*/
tmpDbgFlag = _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG);
tmpDbgFlag |= _CRTDBG_ALLOC_MEM_DF;
tmpDbgFlag &= _CRTDBG_DELAY_FREE_MEM_DF; // This line is wrong
_CrtSetDbgFlag(tmpDbgFlag);
The third line of code should be:
tmpDbgFlag &= ~_CRTDBG_DELAY_FREE_MEM_DF;
MORE INFORMATION
To disable a flag with the _CrtSetDbgFlag() function, you should AND the
variable with the bitwise NOT of the bitmask.
| Modification Type: | Major | Last Reviewed: | 12/9/2003 |
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| Keywords: | kbCRT kbdocerr KB142420 |
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