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POAssertion error: involving the fscanf function
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  1. POAssertion error: involving the fscanf function
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    copied!<p>This error occurred in my program:</p> <pre><code>Debug Assertion Failed! Program:C:\JM\.\bin\ldecod.exe File: f:\ff\vctools\crt_bld\self_x86\crt\src\fscanf.c Line:52 Expression: (stream!=NULL) For information on how your program can cause an assertion failure, see the Visual C++ documentation on asserts. (Press Retry to debug the application.) </code></pre> <p>What seems to be the problem here?</p> <h2>CODE</h2> <p>This is the portion of my code where I used fscanf. When mi=297 it worked perfectly fine.</p> <pre><code>int myframe[29699]; ........ if (CONCEAL==1) { FILE*concealfile; concealfile=fopen("myerrsim%15carphone.txt","r"); for(mi=0; mi&lt;14850; mi++) { fscanf(concealfile,"%d\n", &amp;myframe[mi]); } if (myctr==currMB-&gt;mbAddrX+(((currMB)-&gt;p_Slice)-&gt;p_Img)-&gt;number*99 &amp;&amp; currMB-&gt;mbAddrX+(((currMB)-&gt;p_Slice)-&gt;p_Img)-&gt;number&gt;0) { if (myframe[myctr]==1) { mbmode=0; } myctr++; } } </code></pre> <blockquote> <p>Additional questions! I am encountering several similar errors. The programs breaks at different portions of source codes and some of which are built in functions like "fscanf". I do not know the reason. And sometimes a program on my computer, like "Flash Player" notifies me of some sort of error. Is this because the pointers used in my program are trying to access "Flash Player"? Why is this happening and what is the possible fix?</p> </blockquote> <p><strong>What are assertion errors simply put?</strong></p> <p><strong>For @Jonathan Leffler</strong></p> <pre><code>#ifdef _DEBUG /* * Report error. * * If _CRT_ERROR has _CRTDBG_REPORT_WNDW on, and user chooses * "Retry", call the debugger. * * Otherwise, continue execution. * */ if (rterrnum != _RT_CRNL &amp;&amp; rterrnum != _RT_BANNER &amp;&amp; rterrnum != _RT_CRT_NOTINIT) { switch (_CrtDbgReportW(_CRT_ERROR, NULL, 0, NULL, L"%s", error_text)) { -&gt; case 1: _CrtDbgBreak(); msgshown = 1; break; case 0: msgshown = 1; break; } } </code></pre> <p>where -> is the unexpected breakpoint. located in C:\Program Files\Microsoft Visual Studio 11.0\VC\crt\src\crt0msg.c</p>
 

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