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freemem() Free a Previously Allocated MS-DOS Memory Block
#include <dos.h>
int freemem(seg);
unsigned seg; Segment address
freemem() frees a memory block allocated by a previous call to
allocmem(). 'seg' is the segment address of that block.
Returns: 0, if successful. On error, -1 is returned and
'errno' (defined in <errno.h>) is set to ENOMEM
(insufficient memory).
Portability: MS-DOS only.
See Also:
allocmem()
malloc()
setblock()
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