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POc compiler error with linking
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copied!<p>Here is the error I get from the <code>gcc</code> call:</p> <pre><code>gcc -o rr4 shells2.c graph1.c rng.c; Undefined symbols: "_getdisc", referenced from: _main in cckR7zjP.o ld: symbol(s) not found </code></pre> <p>The "cckR7zjP.o" keeps changing every time I call the compiler. The code for the method is in the file <code>graph1.c</code>; its header file is called <code>graph2.h</code>, and I am importing it to the file with the main method called <code>shells2.c</code> using:</p> <pre><code>#include "graph2.h" </code></pre> <p>The method or function definition is:</p> <pre><code>int getdisc(int i){ return disc[i];} </code></pre> <p>which attempts to return the i<sup>th</sup> member of the array disc created by </p> <pre><code>static int *disc; </code></pre> <p>that I already initialized in some other method! I think the problematic call is:</p> <pre><code>for (iter = 0; iter < n; iter++) { if (getdisc(iter) == cln) avgbtwn += get_betweenness(iter); } </code></pre> <p>This seems like a linker problem I checked with some other questions, and I think I am linking my method properly (and am using the same method elsewhere in the code) but I still can't figure this out.</p> <p>Edit: So I switched the order of the command in linux to </p> <pre><code>gcc -o rr4 graph1.c rng.c shells2.c </code></pre> <p>as per Soren's suggestion and the function compiled as normal, does anyone know why? Further it seems when i put a trailing line break in the file graph1.c alleviates the problem.</p>

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