clang/test/Sema/warn-sizeof-arrayarg.c

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2
   3 typedef int Arr[10];
   4
   5 typedef int trungl_int;
   6
   7 void f(int a[10], Arr arr) { // expected-note 4 {{declared here}}
   8
   9   /* Should warn. */
  10   (void)sizeof(a);  // \
  11       // expected-warning{{sizeof on array function parameter will return size of 'int *' instead of 'int[10]'}}
  12   (void)sizeof((((a))));  // \
  13       // expected-warning{{sizeof on array function parameter will return size of 'int *' instead of 'int[10]'}}
  14   (void)sizeof a;  // \
  15       // expected-warning{{sizeof on array function parameter will return size of 'int *' instead of 'int[10]'}}
  16   (void)sizeof arr;  // \
  17       // expected-warning{{sizeof on array function parameter will return size of 'int *' instead of 'Arr' (aka 'int[10]')}}
  18
  19   /* Shouldn't warn. */
  20   int b[10];
  21   (void)sizeof b;
  22   Arr brr;
  23   (void)sizeof brr;
  24   (void)sizeof(Arr);
  25   (void)sizeof(int);
  26 }