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    <p>In <code>getLine()</code>, when you give the <code>infile</code> <code>FILE*</code> to the <code>getNum()</code> function, you dereference it:</p> <pre><code> l=getNum(value,*infile); </code></pre> <p>But <code>getNum()</code> would just expect a normal <code>FILE*</code>, not a dereferenced one. So pass <code>infile</code> to that function unchanged:</p> <pre><code> l=getNum(value,infile); </code></pre> <hr> <p>Additionally, the <code>while(value != '\n')</code> loop will probably run forever, writing past the end of the <code>lines</code> array until you get a segmentation fault. <code>value</code>, which is controlling when the loop will terminate, is never modified (also it isn't initialized, making it start with an arbitrary value). The <code>getNum()</code> function, which probably is supposed to modify <code>value</code>, gets a <strong>copy</strong> of the integer passed as a parameter and then modifies this copy. The original <code>value</code> is never changed.</p> <p>If you want the function to change the <code>value</code> variable you have to use a pointer that points to <code>value</code> and that is used to modify that variable:</p> <pre><code>int getNum(int *value, ...) { *value = 5; ... } l=getNum(&amp;value, infile); </code></pre> <p>Also it is a little dubious that <code>value</code>, an integer variable, is assigned and compared against <code>'\n'</code>, a character literal. Are you sure you want to use the integer value of <code>'\n'</code> as a termination condition of your loop?</p>
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    1. POPassing file pointer into functions, and file not being read correctly
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    1. COI fixed that, yet I still get a segmentation fault
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    2. CO@John: I added some more stuff to my answer.
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