Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Export (0) Print
Expand All
div
eof
Expand Minimize
Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here.

_heapadd

Adds memory to the heap.

int _heapadd( 
   void *memblock,
   size_t size 
);

memblock

Pointer to the heap memory.

size

Size of memory to add, in bytes.

If successful, _heapadd returns 0; otherwise, the function returns –1 and sets errno to ENOSYS.

For more information about this and other return codes, see _doserrno, errno, _sys_errlist, and _sys_nerr.

Beginning with Visual C++ version 4.0, the underlying heap structure was moved to the C run-time libraries to support the new debugging features. As a result, _heapadd is no longer supported on any platform that is based on the Win32 API.

Routine

Required header

Optional header

_heapadd

<malloc.h>

<errno.h>

For more compatibility information, see Compatibility in the Introduction.

Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.

Community Additions

ADD
Show:
© 2015 Microsoft