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why the output of the following program different (random value) every time?


By : Haonan Wang
Date : September 14 2020, 11:00 AM
hope this fix your issue In C, the string literal "aa" is a char * (in C++ a const char *) to a read-only memory location of the string "aa". You are converting this pointer to an integer, i.e. the memory address to a number. Depending on the platform you are using, this memory address may change every time your program runs.
code :


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Generate a random string at compile time or run time and use it in the rest of the program


By : atanu2destiny
Date : March 29 2020, 07:55 AM
I wish this helpful for you Using unsafeperformIO in this particular case seems to be fine as the documentation says :
code :
import System.Random
import System.IO.Unsafe

randomStr :: String
randomStr = take 10 $ randomRs ('a','z') $ unsafePerformIO newStdGen

main = do
     putStrLn randomStr
     putStrLn randomStr

C Program that prints random symbols after correct output


By : Oneey
Date : March 29 2020, 07:55 AM
I hope this helps . newstr should be nul-terminated (or printed with printf("%.*s", result, newstr)) fgets could overflow str by one byte

Using srand(time(NULL)) gives same output each time my program is run (not in loop, seeded with large enough values)


By : user2556667
Date : March 29 2020, 07:55 AM
Any of those help It's a problem of timing. The random number expression in your header is executed before the random number generator seeding code in your main function. Change your code like this
code :
// header
int rand_number;
std::string codeword;

// source
int main() {
    srand (time(NULL));
    rand_number = rand() % codewords.size();
    codeword = codewords[rand_number];

Why does my random number program output garbage?


By : ClownBrains
Date : March 29 2020, 07:55 AM
Any of those help Array indexes are zero-based. For an array of 5 elements the valid indexes are 0..4. Your distribution returns values in the range 0..5 and is the source of the problem.

I am wondering why I get a random integer as my output in this program


By : CorpusCallosum
Date : March 29 2020, 07:55 AM
will help you smallNum stays with the junk value it gets when it is created, because you didn't cover all the cases for the values possible for bigNum and midNum, so it doesn't get assigned a value in certain cases - like the one you experienced the problem with - and stays uninitialized.
Make sure to check all the possible cases:
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