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#pragma once
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int mnozi (unsigned long long int mnozi_s_tem, char * d, long int b) {
unsigned long long int carry = 0; // carry je pri množenju vedno pozitiven
unsigned long long int to = 0;
unsigned long long int za_napisati = 0;
for (b = b-1; b >= 0; b--) {
to = d[b] - '0';
za_napisati = to * mnozi_s_tem;
za_napisati = za_napisati + carry;
carry = 0;
if (za_napisati > 9) {
za_napisati = za_napisati - 10;
carry++;
}
d[b] = za_napisati + '0';
}
return 0;
}
#ifndef DISABLE_LIB_TESTS
int main (int argc, char ** argv) {
unsigned long long int m = 2;
char d[] = "0000000000000000000000000000000000000000000000000000456";
int b = strlen(d);
mnozi(m, d, b);
fprintf(stdout, "test: %s\n", d);
return 0;
}
#endif
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