Rand( ) function blues !

This is a discussion on Rand( ) function blues ! within the C Programming forums, part of the General Programming Boards category; Hi most of all must be knowing how to generate a random number . In this code i have used ...

  1. #1
    Registered User
    Join Date
    May 2004
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    22

    Unhappy Rand( ) function blues !

    Hi most of all must be knowing how to generate a random number . In this code i have used the rand( ) function so that it will print random numbers from 1 to 10. But if i run it always prints 9 . I think it should print different random numbers isnt it? Am i missing anything here in generating random numbers.

    Code:
    #include<stdio.h>
    #include<stdlib.h>
    
    int main()
    {
    	int j;
    	j=1+(int) (10.0*rand()/(RAND_MAX+1.0));
    	printf("%d",j);
    	return 0;
    }
    please help me in understanding rand( ) function
    TIA,
    ~ codomaniac

  2. #2
    ATH0 quzah's Avatar
    Join Date
    Oct 2001
    Posts
    14,826
    Read the FAQ. In short, you need to seed the random number generator.

    Quzah.
    Hope is the first step on the road to disappointment.

  3. #3
    Registered User
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    May 2004
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    22
    oh sorry! I dont know how i missed this question in FAQ really ashamed myself. thanks for pointers.

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