gcc/testsuite/gcc.dg/cast-qual-2.c

   1 /* Test whether the -Wcast-qual handles cv-qualified functions correctly.  */
   2 /* { dg-do compile } */
   3 /* { dg-options "-Wcast-qual" } */
   4
   5 typedef int (intfn_t) (int);
   6 typedef void (voidfn_t) (void);
   7
   8 typedef const intfn_t *constfn_t;
   9 typedef volatile voidfn_t *noreturnfn_t;
  10
  11 intfn_t intfn;
  12 const intfn_t constfn;
  13 voidfn_t voidfn;
  14 volatile voidfn_t noreturnfn;
  15
  16 intfn_t *i1 = intfn;
  17 intfn_t *i2 = (intfn_t *) intfn;
  18 intfn_t *i3 = constfn;
  19 intfn_t *i4 = (intfn_t *) constfn; /* { dg-bogus "discards qualifier" } */
  20
  21 constfn_t p1 = intfn; /* { dg-warning "makes '__attribute__..const..' qualified function" } */
  22 constfn_t p2 = (constfn_t) intfn; /* { dg-warning "adds '__attribute__..const..' qualifier" } */
  23 constfn_t p3 = constfn;
  24 constfn_t p4 = (constfn_t) constfn;
  25
  26 voidfn_t *v1 = voidfn;
  27 voidfn_t *v2 = (voidfn_t *) voidfn;
  28 voidfn_t *v3 = noreturnfn;
  29 voidfn_t *v4 = (voidfn_t *) noreturnfn; /* { dg-bogus "discards qualifier" } */
  30
  31 noreturnfn_t n1 = voidfn; /* { dg-warning "makes '__attribute__..noreturn..' qualified function" } */
  32 noreturnfn_t n2 = (noreturnfn_t) voidfn; /* { dg-warning "adds '__attribute__..noreturn..' qualifier" } */
  33 noreturnfn_t n3 = noreturnfn;
  34 noreturnfn_t n4 = (noreturnfn_t) noreturnfn;