1  /* { dg-do compile } */
       2  /* { dg-options "-fopenmp -std=gnu89" } */
       3  
       4  struct S { int s; };
       5  struct T { int t; };
       6  struct U { int u; };
       7  
       8  #pragma omp declare reduction (+: struct S: omp_out.s += omp_in.s)
       9  #pragma omp declare reduction (*: struct S: omp_out.s *= omp_in.s) \
      10  		    initializer (omp_priv = {1})
      11  #pragma omp declare reduction (foo: struct S: omp_out.s += omp_in.s)
      12  
      13  void
      14  f1 ()
      15  {
      16    struct S s, s2;
      17    struct T t;
      18    #pragma omp declare reduction (+: struct T: omp_out.t += omp_in.t)
      19    #pragma omp parallel reduction (+: t) reduction (foo: s) reduction (*: s2)
      20    s.s = 1, t.t = 1, s2.s = 2;
      21    #pragma omp parallel reduction (+: s)
      22    s.s = 1;
      23  }
      24  
      25  void bar (struct S *);
      26  
      27  void
      28  f2 ()
      29  {
      30    #pragma omp declare reduction (foo: struct S: omp_out.s += omp_in.s) initializer (bar (&omp_priv))
      31    #pragma omp declare reduction (bar: struct S: omp_out.s += omp_in.s) initializer (bar (&omp_orig)) /* { dg-error "one of the initializer call arguments should be" } */
      32  }
      33  
      34  #pragma omp declare reduction (+: struct U: omp_out.u *= omp_in.u)		/* { dg-error "previous" } */
      35  #pragma omp declare reduction (+: struct U: omp_out.u += omp_in.u)		/* { dg-error "redeclaration of" } */
      36  
      37  void
      38  f3 ()
      39  {
      40    #pragma omp declare reduction (f3: struct U: omp_out.u *= omp_in.u)		/* { dg-error "previous" } */
      41    #pragma omp declare reduction (f3: struct U: omp_out.u += omp_in.u)		/* { dg-error "redeclaration of" } */
      42  }
      43  
      44  struct V
      45  {
      46    #pragma omp declare reduction (bar: struct S: omp_out.s *= omp_in.s)		/* { dg-error "not at file or block scope" } */
      47    #pragma omp declare reduction (bar: struct S: omp_out.s += omp_in.s)		/* { dg-error "not at file or block scope" } */
      48  };
      49  
      50  #pragma omp declare reduction (n3: long: omp_out += omp_in)		/* { dg-error "previous" } */
      51  #pragma omp declare reduction (n3: long int: omp_out += omp_in)		/* { dg-error "redeclaration of" } */
      52  #pragma omp declare reduction (n3: short unsigned: omp_out += omp_in)
      53  #pragma omp declare reduction (n3: short int: omp_out += omp_in)
      54  
      55  void
      56  f4 (void)
      57  {
      58    #pragma omp declare reduction (f4: long: omp_out += omp_in)		/* { dg-error "previous" } */
      59    #pragma omp declare reduction (f4: long int: omp_out += omp_in)	/* { dg-error "redeclaration of" } */
      60    #pragma omp declare reduction (f4: short unsigned: omp_out += omp_in)
      61    #pragma omp declare reduction (f4: short int: omp_out += omp_in)
      62  }
      63  
      64  void
      65  f5 (void)
      66  {
      67    #pragma omp declare reduction (+: struct S: omp_out.s += omp_in.s) initializer (omp_priv) /* { dg-error "expected" } */
      68    #pragma omp declare reduction (+: struct T: omp_out.t += omp_in.t) initializer (omp_priv ()) /* { dg-error "expected" } */
      69  }
      70  
      71  void
      72  f6 (a, b)
      73  #pragma omp declare reduction (bar: struct S: omp_out.s *= omp_in.s)	/* { dg-error "expected declaration specifiers before" } */
      74    int a;
      75    int b;
      76  {
      77  }