Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com.
The latest version of this topic can be found at _heapmin.
Releases unused heap memory to the operating system.
Syntax
int _heapmin( void );
Return Value
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.
Remarks
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.
Requirements
| Routine | Required header | Optional header |
|---|---|---|
_heapmin |
<malloc.h> | <errno.h> |
For more compatibility information, see Compatibility in the Introduction.
.NET Framework Equivalent
Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
See Also
Memory Allocation
free
_heapadd
_heapchk
_heapset
_heapwalk
malloc