| 1 | // RUN: %libomp-compile-and-run |
|---|---|
| 2 | #include <stdio.h> |
| 3 | #include "omp_testsuite.h" |
| 4 | |
| 5 | /* |
| 6 | * Checks that false is returned when called from serial region |
| 7 | * and true is returned when called within parallel region. |
| 8 | */ |
| 9 | int test_omp_in_parallel() |
| 10 | { |
| 11 | int serial; |
| 12 | int isparallel; |
| 13 | |
| 14 | serial = 1; |
| 15 | isparallel = 0; |
| 16 | serial = omp_in_parallel(); |
| 17 | |
| 18 | #pragma omp parallel |
| 19 | { |
| 20 | #pragma omp single |
| 21 | { |
| 22 | isparallel = omp_in_parallel(); |
| 23 | } |
| 24 | } |
| 25 | return (!(serial) && isparallel); |
| 26 | } |
| 27 | |
| 28 | int main() |
| 29 | { |
| 30 | int i; |
| 31 | int num_failed=0; |
| 32 | |
| 33 | // the test requires more than 1 thread to pass |
| 34 | omp_set_dynamic(0); // disable dynamic adjustment of threads |
| 35 | if (omp_get_max_threads() == 1) |
| 36 | omp_set_num_threads(2); // set 2 threads if no HW resources available |
| 37 | |
| 38 | for(i = 0; i < REPETITIONS; i++) { |
| 39 | if(!test_omp_in_parallel()) { |
| 40 | num_failed++; |
| 41 | } |
| 42 | } |
| 43 | return num_failed; |
| 44 | } |
| 45 |