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_heapmin

Releases unused heap memory to the operating system.

int _heapmin( void );

If successful, _heapmin 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.

The _heapmin function minimizes the heap by releasing unused heap memory to the operating system. If the operating system does not support _heapmin(for example, Windows 98), the function returns –1 and sets errno to ENOSYS.

Routine

Required header

Optional header

_heapmin

<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.

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