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#include <_ansi.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "trap.h"
caddr_t
sbrk (size_t incr)
{
extern char end; /* Defined by the linker */
static char *heap_end;
char *prev_heap_end;
char *sp = (char *) &sp;
if (heap_end == 0)
{
heap_end = &end;
}
prev_heap_end = heap_end;
heap_end += incr;
return (caddr_t) prev_heap_end;
}
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