Nebula 1994 June/NEBULA_SE.ISO/SourceCode/Cookbook/32.Math/rand.c

C/C++ Source or Header | 1993-01-19 | 295 b | 17 lines

#include <libc.h>
#include <sys/time.h>
#define MAXRND 2147483649
extern long random();
extern void srandom();

int getRand(int MaxVal)
{
struct timeval tp;
struct timezone tzp;

    gettimeofday(&tp, &tzp);
    srandom((int) tp.tv_usec );
    return(MaxVal * ((float) random()/(float) MAXRND) + 1 );
}