This page shows how to generate a random number within range. It is implemented as part of a c++ series of exercises , that I did.

1. #include <stdio.h>
2. #include <stdlib.h>
3. #include <time.h>
5. using namespace std;
6. #include "ecc_calc.h"
7. int main() {
8.   int i;
9.   unsigned char a_data[ARRAY_SZ];
11.   srand ( time(NULL) );
12.   //for(i=0; i < ARRAY_SZ; i++) a_data[i]=(i > 0) ? 0 : 4;
13.   for(i=0; i < ARRAY_SZ; i++) a_data[i]=rand() % 256;
14.   c_ecc *ecc;
15.   ecc = new c_ecc(a_data);
16.   delete ecc;
17.   return 0;
18. }

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