The random and the rand functions generates the same set of random numbers,
every time the code is executed. Though it would generate 2 different random
numbers if the function was called two times in a same code, if the code is
compiled and executed again, it generates the same set of random numbers.
Here is the sample code to reproduce the bug.
filename: generateRandom.c
#include <stdio.h>
int main()
{
long int i, j;
i = random();
j = random();
printf("Random number 1: %ld\n", i);
printf("Random number 2: %ld\n", j);
return 0;
}
If this code is executed multiple times the same random numbers are generated.
I have a fix for this problem which I have been using for a while. If this is a
valid bug, I can give a patch for this.
Rahul
rsanghavi At gmail Dot com
--
Summary: Random number generates the same set of numbers
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rsanghavi at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34096
