1// RUN: %libomptarget-compile-generic
2// RUN: %libomptarget-run-generic 2>&1 \
3// RUN: | %fcheck-generic
4
5#include <stdio.h>
6#include <stdlib.h>
7
8#define N 1024
9#define FROM 64
10#define LENGTH 128
11
12int main() {
13 float *A = (float *)malloc(N * sizeof(float));
14
15#pragma omp target enter data map(to : A[FROM : LENGTH])
16
17 // A, has been mapped starting at index FROM, but inside the use_device_ptr
18 // clause it is captured by base so the library must look it up using the
19 // base address.
20
21 float *A_dev = NULL;
22#pragma omp target data use_device_ptr(A)
23 { A_dev = A; }
24#pragma omp target exit data map(delete : A[FROM : LENGTH])
25
26 // CHECK: Success
27 if (A_dev == NULL || A_dev == A)
28 fprintf(stderr, format: "Failure\n");
29 else
30 fprintf(stderr, format: "Success\n");
31
32 free(ptr: A);
33
34 return 0;
35}
36

source code of offload/test/mapping/array_section_use_device_ptr.c