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POinteger that becomes 0 in a strange way
 

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  1. POinteger that becomes 0 in a strange way
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    <p>I have an integer : (using <code>xcode</code> for iPhone ) .</p> <pre><code>int wordCounter=1; </code></pre> <p>Later on, when i fill arrays with it-as a pointer,in a for loop, it somehow becomes 0 after it becomes a certain number . i have checked my program many times for bugs, and i realize that i dont even have a decrement on it anywhere . i do have <code>wordCounter++</code>.</p> <p>Now i have seen that i have many lines like this,that after them it becomes 0 :</p> <pre><code>if(tempBinary[countWords-1][j] != tempBinary[countWords][j]) </code></pre> <p>so i was thinking that <code>countWords-1</code> decrement it down again and again, is that possible? i dont have any other decrement or initialization on this variable in my whole program. i COULD see that when the <code>tempBinary</code> defined as size 7, it initialize at 5, and if <code>tempBinary</code> is 5, it zeroing on 3 .. is it possible that the array is overflow and is zeroing it? i dont think so..</p> <p>whats wrong here ? thanks .</p> <p><strong>EDIT</strong> (one of the problematic states)</p> <pre><code>int countWords=1; int stabilityK=0; tempBinary[0][0]= tempBinary[0][1]=tempBinary[0][2]=tempBinary[0][3]=tempBinary[0][4]=tempBinary[0][5]=tempBinary[0][6]=tempBinary[0][7]=1 ; for(int k=0;k&lt;numOfBuffers;k++) { NSLog(@"countwords:%d",countWords-1); float *temp=getFFT(buffersRing[k],buffersRing[k][0]); for(int j=0;j&lt;wordSize;j++) { switch(state_on_signal) { case WAIT_FOR_SECOND_CHANGE: //get new word if(temp[goodBins[j]] &gt; decisionLine[j]) tempBinary[countWords][j]=1; else tempBinary[countWords][j]=0; if(tempBinary[countWords-1][j] != tempBinary[countWords][j]) newData=1; NSLog(@"s1: countwords:%d",countWords-1); if(j==wordSize-1) { NSLog(@"s2: countwords:%d",countWords-1); NSLog(@"PRE TEMP:%d%d%d%d%d%d%d%d",tempBinary[countWords-1][0],tempBinary[countWords-1][1],tempBinary[countWords-1][2],tempBinary[countWords-1][3],tempBinary[countWords-1][4],tempBinary[countWords-1][5],tempBinary[countWords-1][6],tempBinary[countWords-1][7] ); NSLog(@"NEW TEMP-WAIT FOR SECOND CHANGE :%d%d%d%d%d%d%d%d",tempBinary[countWords][0],tempBinary[countWords][1],tempBinary[countWords][2],tempBinary[countWords][3],tempBinary[countWords][4],tempBinary[countWords][5],tempBinary[countWords][6],tempBinary[countWords][7] ); NSLog(@"s3: countwords:%d",countWords-1); //TAKE NEW DATA if(newData==1) { NSLog(@" TOOK new BINARY at current k:%d, so took data at: %d",k,(k+markedK)/2); for(int s=0;s&lt;wordSize;s++) { if( getFFT(buffersRing[(k+markedK)/2],buffersRing[(k+markedK)/2][0])[goodBins[s] ] &gt;decisionLine[s] ) binary[countWords-1][s]= 1; else binary[countWords-1][s]= 0; } NSLog(@"s4: countwords:%d",countWords-1); NSLog(@"BINARY%d: %d%d%d%d%d%d%d%d :%d",(countWords-1), binary[(countWords-1)][0], binary[(countWords-1)][1], binary[(countWords-1)][2], binary[(countWords-1)][3], binary[(countWords-1)][4], binary[(countWords-1)][5], binary[(countWords-1)][6], binary[(countWords-1)][7],[self getDecimal:binary[countWords-1]]); countWords++; markedK=k; state_on_signal=WAIT_FOR_STABILITY; } newData=0; } break; </code></pre>
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    1. COso i was thinking that countWords-1 decrement it down again and again, is that possible? that's impossible. show all your code
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      1. USAndrey Chernukha
    2. COIs it `countWords` or `wordCounter`? Anyway, it could be an array overflow. Is it declared after a particular array?
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      1. USPotatoswatter
    3. CO@AndreyChernukha Did you post this question forgetting to log in? I have flagged it as such.
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      1. USPotatoswatter
 

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