What does this line of code mean

c++

I am wondering what this line of code mean?

b = (gen_rand_uniform()>0.5)?1:0;

The gren_rand_uniform() is a function to generate random 0 and 1 numbers. However I don't get the meaning for >0.5 and 1:0.

I know this is supposed to be a basic question, please bear with me.

Thanks!

Best Solution

It's shorthand. In the example you gave, it is equivalent to:

if (gen_rand_uniform() > 0.5) {
    b = 1;
} else {
    b = 0;
}

Since gen_rand_uniform() probably generates uniformly distributed random numbers between 1 and 0, there's a 50% chance of the value being higher than 0.5. Which means there's a 50% chance of getting a 1 or a 0

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