call "CBL_ALLOC_DYN_MEM" using     mem-pointer
                         by value  mem-size
                                   flags
                         returning status-code 
               	 | Using call prototype (see Key) | Picture | |
|---|---|---|
| mem-pointer | cblt-pointer | usage pointer. Must be level 01. | 
| mem-size | cblt-os-size | pic x(4) comp-5 or pic x(8) comp-5 (64-bit native programs only) | 
| flags | cblt-os-flags | pic x(4) comp-5 or pic x(8) comp-5 (64-bit native programs only) | 
| status-code | See Library Routines - Key | 
| Bits 0-1 | Reserved. Must be set to 0. | 
| Bit 2 | Allocate this memory independently from any calling program. | 
| Remaining bits | Reserved. Must be set to 0. | 
| 0 | Successful allocation | 
| 157 | Unable to allocate memory | 
| 181 | Contradictory flags specification | 
Comments:
The memory allocated is not initialized to any value.
The maximum size of this allocated memory is restricted only by your operating system (unless the -l run-time switch is set).
If bit 2 is not set the memory allocated by CBL_ALLOC_DYN_MEM is freed when the program that allocated it is canceled (logically or physically), if there is a COBOL program that is directly or indirectly the caller. If bit 2 is set, this memory is freed when the run unit terminates, if it has not been previously freed by CBL_FREE_DYN_MEM.