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CPM OPERATING SYSTEMS/CPM 68K/1.0X SOURCES/v101/clib/calloc.c

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+/********************************************************************
+*
+*	calloc.c - memory allocator for sets of elements
+*
+*	BYTE *calloc(nelem,sizelem)
+*		WORD nelem, sizelem
+*
+*	Returns a pointer to a region of (zero filled) memory large
+*	enough to hold 'nelem' items each of size 'sizelem'.
+*	Returns NULL if not enough memory.
+*
+*********************************************************************/
+
+#include <portab.h>
+#include <cpm.h>
+
+BYTE *calloc(ne,se)
+REG	WORD ne,		/* number of elements */
+	     se;		/* size of element */
+{
+REG	WORD rs;		/* region size to be allocated */
+REG	BYTE *rp;		/* pointer to region */
+	BYTE *malloc();
+
+	if( (rp=malloc(rs =(se*ne))) == NULL)
+		return(NULL);
+	for( ; rs > 0; )
+		rp[--rs]=ZERO;
+	return(rp);
+}