_heapmin
Visual Studio .NET 2003
Releases unused heap memory to the operating system.
int _heapmin( void );
Return Value
If successful, _heapmin returns 0; otherwise, the function returns –1 and sets errno to ENOSYS.
See _doserrno, errno, _sys_errlist, and _sys_nerr for more information on this, and other, return codes.
Remarks
The _heapmin function minimizes the heap by releasing unused heap memory to the operating system.
Note In 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, the only Win32 platform that is supported by _heapmin is Windows NT. The function returns –1 and sets errno to ENOSYS, when it is called by any other Win32 platform.
Requirements
| Routine | Required header | Optional headers | Compatibility |
|---|---|---|---|
| _heapmin | <malloc.h> | <errno.h> | Win NT, Win 2000, Win XP |
For additional compatibility information, see Compatibility in the Introduction.
Libraries
All versions of the C run-time libraries.
See Also
Memory Allocation Routines | free | _heapadd | _heapchk | _heapset | _heapwalk | malloc | Run-Time Routines and .NET Framework Equivalents
