Negative Return Problem

This is a discussion on Negative Return Problem within the C Programming forums, part of the General Programming Boards category; i Have a Function,whose basic structure is Code: signed char fun() { signed char a; a=-1; return a; } now ...

  1. #1
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    Negative Return Problem

    i Have a Function,whose basic structure is
    Code:
     signed char fun()
    {
    signed char a;
    a=-1;
    return a;
    }
    now when i run this code on Coverity tool, i'm getting error as negative return

    what can be done to solve this thing?

    P.S : please mind that the code i shared is a basic one,
    it has lot of dependenies in the program
    Last edited by manju1438; 03-29-2012 at 08:19 AM.

  2. #2
    Technical Lead QuantumPete's Avatar
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    Are you assigning the return value of your function to an unsigned int, perhaps?
    "No-one else has reported this problem, you're either crazy or a liar" - Dogbert Technical Support
    "Have you tried turning it off and on again?" - The IT Crowd

  3. #3
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    Mar 2011
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    546
    doesn't that warning mean you are using the return value to index an array?

    "In particular, Coverity Prevent™ currently detects several types of buffer
    overruns in the heap and the stack. Those results marked as "Negative
    Returns" and "Reverse Negative"

  4. #4
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    To tell if your function or your usage of said function is at fault:

    Code:
    printf("%d", fun());

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