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POfscanf failing in this C code
 

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  1. POfscanf failing in this C code
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    <p>So being a new intern, I need to fix a lot of dirty code that some of these people wrote. Heres a snippet and I'm having a little issue figuring out what is the precise issue:</p> <pre><code>for (i=0; i&lt;TOOL_LIMIT; i++) { if ( 0 &gt;= fscanf(fp,"%s %s %s %s %s %s %s\n",coreData[i][0],\ coreData[i][1],coreData[i][2],coreData[i][3],coreData[i][4],coreData[i][5], coreData[i][6])) { break; } totalCases++; } fclose(fp); </code></pre> <p>Basically, fp is opened to some file that has the following regex pattern:</p> <pre><code>data11 data12 data13 data14...data17 data21 data22 data23 data24...data27 ... </code></pre> <p>I feel like this code isn't working the way it's intended too. Basically, its suppose to read each line of the file, and fill in the array coreData as shown. I don't think fscanf works like it's being shown here, but I could be wrong. Is this code working as it should? I haven't done file io with c in a while.</p> <p>Edit;; Sorry, should give a brief overview of failure. Basically, the C-script is a cgi script that takes in some inputs (files that have errors) and matches those files to the data in the file opened by fp (call it 'fp_file'), and generates an html table. If the file with the error shows up in the fp_file, then it prints some extra information (like data12 etc), otherwise it leaves the entry in that table blank. Example File f01 was found to have an error we now check fp for 'f01', if it exists, we show some more information about that file (author, etc).</p> <p>What I am seeing is that only one file is being matched up correctly (the first line of fp). Other than that, a blank space is in place for the rest of the error files.</p>
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    1. COHow is it failing?
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    2. COwhat is the type of `coreData`? What is the return value from `fscanf`? What is the value of the `coreData` variables after the call to `fscanf`? It would help if you could provide a **small**, **complete** test case -- see http://sscce.org/.
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    3. COI made an edit about how it's failing. And I'm using a sample file as a test. I have a feeling that it's not getting past the first line
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