llvm-gcc-4.2/gcc/testsuite/gcc.dg/gomp/appendix-a/a.33.2.c

/* { dg-do compile } */

#include <stdio.h>
#include <stdlib.h>
float
read_next ()
{
  float *tmp;
  float return_val;
#pragma omp single copyprivate(tmp)
  {
    tmp = (float *) malloc (sizeof (float));
  }				/* copies the pointer only */
#pragma omp master
  {
    scanf ("%f", tmp);
  }
#pragma omp barrier
  return_val = *tmp;
#pragma omp barrier
#pragma omp single nowait
  {
    free (tmp);
  }
  return return_val;
}