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You have three options: the first is to comment out the whole function;  This isn't so good, since if you have comments inside the function you'll have to comment around them.  The second is to add a splint annotation, <code>/*@unused@*/</code> in front of the function declaration (or function definition if there's no prototype), as the very first thing on the line.  i.e:

<code>
 /*@unused@*/ void unused_func(int arg);
</code>

The last alternative is to comment out the prototype, and then use the pre-processor directives <code>#if 0</code> and <code>#endif</code> around your function definition, to remove it before compilation.  This method will resolve gnuc warnings as well.  i.e:

<code>
 /* void unused_func(int arg); */

 #if 0
 void
 unused_func(int arg) {
    /*func body*/;
 }
 #endif
</code>
























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