check_select.c

   1 /*
   2  * smatch/check_select.c
   3  *
   4  * Copyright (C) 2010 Dan Carpenter.
   5  *
   6  * Licensed under the Open Software License version 1.1
   7  *
   8  */
   9
  10 #include "smatch.h"
  11 #include "smatch_slist.h"
  12
  13 static int my_id;
  14
  15 static void match_select(struct expression *expr)
  16 {
  17         if (expr->cond_true)
  18                 return;
  19         expr = strip_expr(expr->conditional);
  20         if (expr->type != EXPR_COMPARE)
  21                 return;
  22         sm_msg("warn: boolean comparison inside select");
  23 }
  24
  25 void check_select(int id)
  26 {
  27         my_id = id;
  28         add_hook(&match_select, SELECT_HOOK);
  29 }