diff options
Diffstat (limited to 'misc/examples/multidim.c')
| -rw-r--r-- | misc/examples/multidim.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/misc/examples/multidim.c b/misc/examples/multidim.c index 8a5492dc..d69a04fb 100644 --- a/misc/examples/multidim.c +++ b/misc/examples/multidim.c @@ -9,15 +9,27 @@ using_cspan3(ispan, int); int main() { cstack_int v = {0}; - c_FORLIST (i, unsigned, {1,2,3,4,5,6,7,8,9,10,11,12}) + c_FORLIST (i, unsigned, {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24}) cstack_int_push(&v, *i.ref); - // View data as contiguous memory representing 12 ints + // View data as contiguous memory representing 24 ints ispan ms1 = cspan_from(&v); + + // View the same data as a 3D array 2 x 3 x 4 + ispan3 ms3 = cspan_multidim(v.data, 2, 2, 6); + // View data as contiguous memory representing 2 rows of 6 ints each - ispan2 ms2 = cspan_multidim(v.data, 2, 6); - // View the same data as a 3D array 2 x 3 x 2 - ispan3 ms3 = cspan_multidim(v.data, 2, 3, 2); + ispan2 ms2 = cspan_at3(&ms3, 0); + ms2.data = cspan_at(&ms2, 1, 1); + ms2.dim[0] = 2; + ms2.dim[1] = 3; + for (unsigned i=0; i != ms2.dim[0]; i++) { + for (unsigned j=0; j != ms2.dim[1]; j++) + printf(" %2d", *cspan_at(&ms2, i, j)); + puts(""); + } + + ms2 = (ispan2)cspan_at3(&ms3, 0); // write data using 2D view for (unsigned i=0; i != ms2.dim[0]; i++) |