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.
Releases unused heap memory to the operating system.
int_heapmin(void);
| Routine | Required Header | Optional Headers | Compatibility |
| _heapmin | <malloc.h> | <errno.h> | Win NT |
For additional compatibility information, see Compatibility in the Introduction.
Libraries
| LIBC.LIB | Single thread static library, retail version |
| LIBCMT.LIB | Multithread static library, retail version |
| MSVCRT.LIB | Import library for MSVCRT.DLL, retail version |
Return Value
If successful, _heapmin returns 0; otherwise, the function returns –1 and sets errno to ENOSYS.
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.
See Also free, _heapadd, _heapchk, _heapset, _heapwalk, malloc