Random Integer 0 or 1

[ChangBroot]

Hi,

For God's sake, can someone please, CLEARLY, tell me how to generate a random INTEGER between 0 and 1 (i.e. 0 or 1). I have searched all over the net, and no one has put a good working code. I hate C++ and anyone who proposed/coded the "rand()" function/class/library. If anyone tell me to do this in Java, I'll do it in a blink of an eye, but this stupid C++ drove me crazy for the past week. If I made SO MANY combination of code, that if I put that much work on anything else, I may have invented or discover something new. So, please, someone, give me a correct piece of code that has TRULY been tested.

Here are everything I grabbed from the net and what I made.

srand(time(0)); //I tried NULL as well

int a = (float)rand() / RAND_MAX; OR

int a = (float)rand() / (RAND_MAX + 1); OR

int a = (double)rand() / (double)(RAND_MAX) OR

int r = (rand() % 1) OR

======

double a = (double)rand() / RAND_MAX;

int b = a;

I tried lots of other casting, but everything gives me only ZERO.

[Athar]

You're a rather obvious troll, but what the hell:
int a=rand()%2;

[ascii]

A quick Google search for "c++ random number generation" returned this http://www.learncpp.com/cpp-tutorial/59-random-number-generation/. Shouldn't be any trouble for a talented Java programmer like yourself. Isn't Google great?

[jsmith]

Rather than searching for recipes, you should think about the problem yourself for a minute. It's not hard. If you know anything about math, you know that taking the remainder of x/2 where x is an integer you get either 0 or 1 depending upon whether x is odd or even. All you need to do is find a source of random integers. rand() is just that.

[ultifinitus]

I hate C++

lol. Angry man is angry =]

[Mathhead200]

Hey, before I learned C++ all random functions I had ever worked with returned a floating point value in [0,1)
floor( 2 * random() ); //example

So really it's just understanding that rand() returns something similar to Java's
new java.util.Random().nextInt();

Also, @ChangBroot: assert __ % 1 == 0;

[kfmfe04]

ChangBroot wrote:

If anyone tell me to do this in Java, I'll do it in a blink of an eye, but this stupid C++ drove me crazy for the past week. If I made SO MANY combination of code, that if I put that much work on anything else, I may have invented or discover something new.

roflmao - this post is hilarious in too many ways! My sides are hurting...

[strongdrink]

LMFAO!

[TheNoobie]

#include <time.h> // So we can use time() function
#include <iostream> // To output results to console

int main() // Main function required in all C++ programs and first function to be called
{
	srand( time(NULL) ); //Randomize seed initialization
	int randNum = rand() % 2; // Generate a random number between 0 and 1

	std::cout << randNum; // Output the results to console
	return 0; //Generate an "EXIT SUCCESS" return code
}

Clear enough for you? I find it hard to believe that you're so good at java but couldn't figure out something as simple as this, no offense.