libowfat/mult/imult16.c

#include "safemult.h"

int imult16(int16 a,int16 b,int16* c) {
  int32 x=(int32)a*b;
  if ((int16)x != x) return 0;
  *c=x;
  return 1;
}
add API for integer multiplication with overflow detection 2003-08-22 15:03:10 +00:00			`#include "safemult.h"`

			`int imult16(int16 a,int16 b,int16* c) {`
turns out the imult routines (which I never used) were incorrect. Noted by Matthew Dempsky open_* from open.h now open in large file mode 2005-07-15 20:57:07 +00:00			`int32 x=(int32)a*b;`
			`if ((int16)x != x) return 0;`
			`*c=x;`
reverse return code for safemult API to conform to newer djb APIs 2003-09-05 21:25:51 +00:00			`return 1;`
add API for integer multiplication with overflow detection 2003-08-22 15:03:10 +00:00			`}`