Thread: Converting a short decimal into binary using a short not libary

  1. #1
    Registered User
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    Sep 2012

    Exclamation Converting a short decimal into binary using a short not libary

    Converting a short decimal into binary using a short, no libary.
    I just want help, it doesnt do anthing past the printf statment.

    I dont want anyone to write the whole thing for me.

    As i said im just lost and dont know what to do
    Thank you so very much
    still new to C programming.

    short inputnumber ; // the number taken from the user 
    int temp;
    int j = 0; //counts the array loctions when printing
    int count;// equals the number you entered
    int i = 0;// counts the array loctions when it enters binary number
    int binout[16] ={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};//
    int _tmain(int argc, _TCHAR* argv[])
    //Asked user for their number
    printf("Please enter a number that is 16 bits\n");
    //scans the user number
    count = inputnumber;//
    // useing mod to check if there is a remainer adding 1 if 0 or 1 if its a 1 doing 2's comp
    while ( count =! 0) 
    if (count % 2 == 0 )
    {binout[i] = 1;
    count = count / 2;
    else (binout[i] = 0); {count = count / 2; ++i;} //changing the first bit to the oppisite 2's comp if (binout[0] = 0) {binout[0] = 1;} else (binout[0] = 0); // printing you're number in binary while (j < 16, ++j ) {printf("You're number in 2's comp binary %i", &binout[j]);} return 0;}

  2. #2
    Registered User TheBigH's Avatar
    Join Date
    May 2010
    Melbourne, Australia
    printf("You're number in 2's comp binary %i", &binout[j]);
    %i prints an integer, but &binout[j] is an address.
    while(!asleep) {

  3. #3
    Registered User
    Join Date
    Mar 2011
    else (binout[i] = 0);
    {count = count / 2;
    what gets executed as the else?

    count =! 0
    what does this do?

    edit:most microprocessors already represent their numbers internally as 2s-complement. since you are on Windows, the value is already in that format. unless i don't understand what you want to print, you don't need to swap that bit.
    Last edited by dmh2000; 09-26-2012 at 04:35 PM. Reason: more info

  4. #4
    Registered User
    Join Date
    Sep 2012
    How would you print the address? I want to put the binary represetation of an int into binout[] and print it out.

  5. #5
    Registered User
    Join Date
    Sep 2012
    You are right i'm trying to switch it to 2s complement. I understand windows does this for me but the program just need to show that i know how to do this.

  6. #6
    Algorithm Dissector iMalc's Avatar
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    Dec 2005
    New Zealand
    If you need more help, please post the updated code after having fixed the things that were hinted at above.
    My homepage
    Advice: Take only as directed - If symptoms persist, please see your debugger

    Linus Torvalds: "But it clearly is the only right way. The fact that everybody else does it some other way only means that they are wrong"

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