gcc/libio/dbz/random.c

32 lines
485 B
C

/*
* random-number generator for testing
*/
static unsigned long next = 1;
/*
- range - generate a random number within an inclusive range
*
* Algorithm from ANSI C standard. Limitation: max-min <= 32767.
*/
int
range(min, max)
int min;
int max;
{
register int temp;
next = next * 1103515245 + 12345;
temp = (int)((next/65536)%32768);
return(temp%(max - min + 1) + min);
}
/*
- seed - seed random number generator
*/
void
seed(n)
long n;
{
next = (unsigned long)n;
}