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POSame name input/output issue
 

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  1. POSame name input/output issue
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    <p>Okay guys, I'm having one more issue with my program. I'm running into an issue with using the same filename (KnightsBall."extension"). I don't know if it's something locally, or an issue I'll have when I move the code over. So can anyone help me with what thing I'm overlooking? The output and input have to both go to the same filename.(in) or (out) so no ways around. If I change the output file to <code>knights.out</code> it works. Any ideas? Relevant segments of code:</p> <pre><code>FILE *fr; FILE *fo; typedef struct KnightsBallLottoPlayer { char firstName[20]; char lastName[20]; int numbers[6]; } KBLottoPlayer; int main() { KBLottoPlayer *temp; int numPlays=0; //What file to read from fr = fopen("KnightsBall.in", "r"); //What file to read to fo = fopen("KnightsBall.out", "w"); </code></pre> <p>and the part where the output is accessed:</p> <pre><code>if(match==3) fprintf(fo,"%s %s matched %d numbers and won $10.\n", temp[r].firstName, temp[r].lastName, match); if(match==4) fprintf(fo,"%s %s matched %d numbers and won $100.\n", temp[r].firstName, temp[r].lastName, match); if(match==5) fprintf(fo,"%s %s matched %d numbers and won $10000.\n", temp[r].firstName, temp[r].lastName, match); if(match==6) fprintf(fo,"%s %s matched %d numbers and won $1000000.\n", temp[r].firstName, temp[r].lastName, match); </code></pre> <p>Also on a completely unrelated side note, does anyone know how to close the command prompt after I scan in the values I need from the user? All help is much appreciated.</p>
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    1. USJonathan Leffler
    1. USespo92
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    1. COI'm not quite sure of what your question is. Did you say you had problem reading and writing simultaneously to KightsBall.in?
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      1. POSame name input/output issue
      1. USRam
    2. CONo. I read in from KnightsBall.in. After processing the information, i have to output the fprintf statements to KnightsBall.out. The problem Im having is that reading in always works, but the writing out to KnightsBall.out does nothing to the file. If I changed KnightsBall.out to Knights.out it works marvelously. Any ideas?
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      1. USespo92
    3. COAh, I see; that's curious. Are you sure you are checking the file's contents only after closing it using fclose() ?
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      1. USRam
 

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