gcc/testsuite/c-c++-common/Wint-in-bool-context-3.c

   1 /* { dg-options "-Wint-in-bool-context" } */
   2 /* { dg-do compile } */
   3
   4 #define BITS_PER_UNIT 8
   5
   6 int foo (int count)
   7 {
   8   int alignment;
   9
  10   alignment = 1;
  11   while (!(count & alignment)
  12          && (alignment * 2 * BITS_PER_UNIT)) /* { dg-warning "boolean context" } */
  13     alignment <<= 1;
  14   return alignment * BITS_PER_UNIT;
  15 }