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POStrange Pointer behavior in while loop
 

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  1. POStrange Pointer behavior in while loop
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    <p>Hello I insert some values into an hash table(the implemented hash table is well tested and works) I read in a file with fscanf and store the values of the string and the float in variables.</p> <p>The text file looks like this:</p> <pre><code>die 0.000000 laun -4.102468 des -7.952615 verliebt -6.080813 ein -8.645762 schaferspiel -4.315029 in -8.645762 vers -5.755391 und -8.645762 akt -3.909564 person -8.645762 egl -8.645762 </code></pre> <p>The read in works like this:</p> <pre><code>//scan text for scheme WORDSTEM PROBABLITIY r = fscanf(text, "%s %f\n", wordstem, &amp;prob); //doing some pointer madness!!! pProb = &amp;prob; float PpProb = *pProb; float *PPpProb = &amp;PpProb; char *cpStr = strdup(wordstem); hashtable_access(wordHash, cpStr,PPpProb); //insert into hashtable_t while (r != EOF){ float prob1; r = fscanf(text, "%s %f\n", wordstem, &amp;prob1); //printf("%f",prob1); char *cpStr1 = strdup(wordstem); float a = 0; float *PpProb1 = &amp;a; float *pProb1 = &amp;prob1; *PpProb1 = *pProb1; hashtable_access(wordHash, cpStr1,PpProb1); pProb1 = NULL; //do till EOF } float *pHashProb = (float *)hashtable_access(wordHash, "schaferspiel", NULL); float hashProb = *pHashProb; printf("%f\n",hashProb); </code></pre> <p>The problem is that the hash returns for the first entry "die" the correct value but schaferspiel and every other key after the first returns always the last value.</p> <p>The hash table requires to save pointers. I'm not sure what I'm doing wrong because i think I copied the value of prob1.</p> <p>Can somebody please help me. </p>
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