clang/test/Sema/warn-unused-but-set-parameters.c

   1 // RUN: %clang_cc1 -fblocks -fsyntax-only -Wunused-but-set-parameter -verify %s
   2
   3 int f0(int x,
   4        int y, // expected-warning{{parameter 'y' set but not used}}
   5        int z __attribute__((unused))) {
   6   y = 0;
   7   return x;
   8 }
   9
  10 void f1(void) {
  11   (void)^(int x,
  12           int y, // expected-warning{{parameter 'y' set but not used}}
  13           int z __attribute__((unused))) {
  14     y = 0;
  15     return x;
  16   };
  17 }
  18
  19 struct S {
  20   int i;
  21 };
  22
  23 void f3(struct S s) { // expected-warning{{parameter 's' set but not used}}
  24   struct S t;
  25   s = t;
  26 }
  27
  28 void f4(int j) { // expected-warning{{parameter 'j' set but not used}}
  29     j++;
  30 }
  31
  32 void f5(int k) { // expected-warning{{parameter 'k' set but not used}}
  33     --k;
  34 }