[Bug c/120753] is_device_ptr does not compile if given a pointer which is a member of a struct, i.e. is_device_ptr(u.ptr), where mystruct u; and struct mystruct{double *ptr;int something;}; will fail to compile (note that map works in this case)

[schulz.benjamin at googlemail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120753

--- Comment #4 from Benjamin Schulz <schulz.benjamin at googlemail dot com> ---
Comment on attachment 61753
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61753
mdspan_omp.h

#include <omp.h>
struct mytensor
{
int *strides;
int *extents;
double *data;
};

int main()
{
mytensor t;
t.data=(double*)omp_target_alloc(sizeof(double)*20,omp_get_default_device());

#pragma omp target teams distribute is_device_ptr(t.data)
 for(size_t i=1;i<20;i++)
    {
        t.data[i]=20;
    }

}