imult64(3) | Library Functions Manual | imult64(3) |
imult64 - integer multiplication with overflow checking
#include <libowfat/safemult.h>
int imult64(int64 a,int64 b,int64* c);
imult64 does c=a*b and returns 1.
In case of an integer overflow, imult64 leaves c alone and returns 0.