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    <p>I think there is a bug memory leakage because you first allocate </p> <pre><code> char **words = (char **)malloc(sizeof(char *) * (size +1)); //when declaring </code></pre> <p>when declaring the variable, and after that you again allocate the same <code>**words</code> in the loop body:</p> <pre><code> char **words = (char **)malloc(sizeof(char *) * (size +1)); // in the while loop </code></pre> <p>The above line in the while loop with which you allocate the space to store the string should be (1)</p> <pre><code> //in the while loop should be char *words[index] = (char *)malloc(sizeof(char ) * (size +1)); strcpy (words[index], str); </code></pre> <p>Or simply (2)</p> <pre><code> words[index] = str; </code></pre> <p>Because the <code>str</code> already points to a valid memory location which you assign to the array of pointers.</p> <p>In the (1) method above you are allocating a block of memory of <code>size+1</code> of type <code>char</code> and copying the string in <code>str</code> into <code>words[index]</code> with <code>strcpy</code>. For this you require to reserve a memory location into <code>words[index]</code> first and then perform the copy. If this is the case the the memory freeing is not at simple as <code>free (word)</code> instead each of the allocated block will need to be manually removed.</p> <pre><code> for (index = 0; words[index] != 0; index++) { free (words[index]; } free (words); </code></pre> <p>In the (2) solution is in my opinion not a good one, because you have passed a pointer to a string and assign that pointer value to store the string. So both the <code>str</code> and the <code>words[index]</code> point to the same location. Now after the function returns if anybody <code>free</code>s <code>str</code> (if it was dynamically allocated) then the <code>words[index]</code> reference will become illegal.</p> <p>EDIT:</p> <p>Also you need to use</p> <p><code>gets (words);</code> or in using c++ <code>cin &gt;&gt; words;</code> or use <a href="http://www.cprogramming.com/tutorial/string.html" rel="nofollow">getline</a>, or simply increment the <code>index</code> counter in your code, and assign a null at the end to terminate the string.</p> <p>in main function. You do not increment the <code>index</code> counter so all the characters are assigned in the same location.</p>
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    1. POTrying to create a program to read a users input then break the array into seperate words are my pointers all valid?
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