Rounding a number without "if"s

Rounding a "double" number without using "if" statements

double num;
int num_rounded = static_cast<int>(floor(num+0.5));

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Uniform (Pseudo) Random [0,1] Probability distribution in C++

Generating Uniform (Pseudo) Random Probability distribution in the interval [0,1] in C++:

double p = (RAND_MAX - rand()) / static_cast<double>(RAND_MAX);
--or--
double p = rand() / static_cast<double>(RAND_MAX);

Of course, use #include<cstdlib> for using int rand(); function and use void srand(int); to set the seed (if necessary).

Debugging tip:
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Using a specific seed initially can help with repeating the random number patterns. Eg: srand(5); can be used in the program for debugging purposes and then removed later on!

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