The <umalloc.h> include file defines the memory allocation functions that are heap-specific:
| _debug_ucalloc | _ucalloc | _udump_allocated | _uheapset |
| _debug_uheapmin | _uclose | _udump_allocated_delta | _uheap_walk |
| _debug_umalloc | _ucreate | _uheapchk | _umalloc |
| _mheap | _udefault | _uheap_check | _ustats |
| _uaddmem | _udestroy | _uheapmin | _uopen |
<umalloc.h> also defines macros used by the heap-specific functions.
Note: To use the debug versions of memory management functions, specify the debug memory (/Tm) compiler option.