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- How to generate a random int in C? - Stack Overflow
Many implementations of rand() cycle through a short list of numbers, and the low bits have shorter cycles The way that some programs call rand() is awful, and calculating a good seed to pass to srand() is hard The best way to generate random numbers in C is to use a third-party library like OpenSSL For example,
- c++ - How does modulus and rand () work? - Stack Overflow
A second lesson is that this shows another way in which <random> is easier to use than rand() and manually computing your own distributions The built-in uniform_int_distribution allows you to directly state the desired, inclusive range
- Generate a value between 0. 0 and 1. 0 using rand () - Stack Overflow
This is entirely implementation specific, but it appears that in the C++ environment you're working in, RAND_MAX is equal to INT_MAX Because of this, RAND_MAX + 1 exhibits undefined (overflow) behavior, and becomes INT_MIN While your initial statement was dividing (random # between 0 and INT_MAX) (INT_MAX) and generating a value 0 <= r < 1, now it's dividing (random # between 0 and INT_MAX
- c - How does srand relate to rand function? - Stack Overflow
printf("%d\n", rand() % 50); Where is the connection between rand and srand? What I mean or expect is I assume rand () will get some parameter from srand () so it knows to generate different numbers each time I assume it would look something like rand (srand (time (null)); It's like initializing a variable without using it to me srand is being initialized, but I don't see it being used Does
- How does rand() work? Does it have certain tendencies? Is there . . .
The actual implementation of the random number generator is left unspecified, so the actual behavior is specific to the implementation The important thing to remember is that rand does not return random numbers; it returns pseudo-random numbers, and the values it returns are determined by the seed value and the number of times rand has been
- clarification for RAND_MAX and rand () in c stdlib. h
RAND_MAX is an integral constant, but you are printing it using the %f specifier (used for double), which is undefined behavior (and in your case happens to print 0)
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