test_target_map_struct_default.c fails if run with no device present

[tob2]

See also #12

The problem is that the two target sections use:

#pragma omp target
    if (!omp_is_initial_device()) {

Hence, the variables do not get set and one operates on uninitialized memory.

This test case does work if one removes this condition (or sets it unconditionally to true).

[spophale]

Thanks @tob2 ! Somewhere in the development process we moved our focus completely to device offload. We will correct it for host execution.

[tmh97]

A potential solution: Replace the if (!omp_is_inital_device) within the target region with if(isOffloading). This does not immediately resolve the issue of allowing tests to run in parallel on host however #12