Recommended way to initialize srand?

Question

I need a \'good\' way to initialize the pseudo-random number generator in C++. I\'ve found an article that states:

In order to generate random-like

Answer 1

As long as your program is only running on Linux (and your program is an ELF executable), you are guaranteed that the kernel provides your process with a unique random seed in the ELF aux vector. The kernel gives you 16 random bytes, different for each process, which you can get with getauxval(AT_RANDOM). To use these for srand, use just an int of them, as such:

#include 

void initrand(void)
{
    unsigned int *seed;

    seed = (unsigned int *)getauxval(AT_RANDOM);
    srand(*seed);
}

It may be possible that this also translates to other ELF-based systems. I'm not sure what aux values are implemented on systems other than Linux.