[Openmp-dev] Behavior of linear clause on omp simd

[Arpith C Jacob via Openmp-dev]

Hi,

I wanted to understand if the linear clause on a simd directive is behaving
according to spec.  Consider the following program:

---
#include <stdio.h>

int main() {
  int a[11];
  int lin = 1;

  #pragma omp simd linear(lin:2)
  for (int i=1; i<=10; i++) {
    a[i] = lin;
  }

  printf("linear= %d\n", lin);
  printf("A = \n");
  for (int i=1; i<=10; i++) {
    printf("%d ", a[i]);
  }

  printf("\n");

  return 0;

}
---

Output:

linear= 21
A =
1 3 5 7 9 11 13 15 17 19

The variable 'lin' has a value of '21' after the simd loop.  According to
the spec, should it have a value of '19' instead?

> The value corresponding to the sequentially last iteration of the
> associated loop(s) is assigned to the original list item.

Thanks,
Arpith
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