diff options
Diffstat (limited to 'misc/examples/multidim.c')
| -rw-r--r-- | misc/examples/multidim.c | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/misc/examples/multidim.c b/misc/examples/multidim.c deleted file mode 100644 index 3980e6d8..00000000 --- a/misc/examples/multidim.c +++ /dev/null @@ -1,68 +0,0 @@ -// Example based on https://en.cppreference.com/w/cpp/container/mdspan -#define i_val int -#include <stc/cstack.h> -#include <stc/cspan.h> -#include <stdio.h> - -using_cspan3(ispan, int); - -int main() -{ - cstack_int v = c_make(cstack_int, {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24}); - - // 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_md(v.data, 2, 3, 4); - - puts("ms3:"); - for (int i=0; i != ms3.shape[0]; i++) { - for (int j=0; j != ms3.shape[1]; j++) { - for (int k=0; k != ms3.shape[2]; k++) { - printf(" %2d", *cspan_at(&ms3, i, j, k)); - } - puts(""); - } - puts(""); - } - puts("ss3 = ms3[:, 1:3, 1:3]"); - ispan3 ss3 = ms3; - //cspan_slice(&ss3, {c_ALL}, {1,3}, {1,3}); - ss3 = cspan_slice(ispan3, &ms3, {c_ALL}, {1,3}, {1,3}); - - for (int i=0; i != ss3.shape[0]; i++) { - for (int j=0; j != ss3.shape[1]; j++) { - for (int k=0; k != ss3.shape[2]; k++) { - printf(" %2d", *cspan_at(&ss3, i, j, k)); - } - puts(""); - } - puts(""); - } - - puts("Iterate ss3 flat:"); - c_foreach (i, ispan3, ss3) - printf(" %d", *i.ref); - puts(""); - - ispan2 ms2 = cspan_submd3(&ms3, 0); - - // write data using 2D view - for (int i=0; i != ms2.shape[0]; i++) - for (int j=0; j != ms2.shape[1]; j++) - *cspan_at(&ms2, i, j) = i*1000 + j; - - puts("\nview data as 1D view:"); - for (int i=0; i != cspan_size(&ms1); i++) - printf(" %d", *cspan_at(&ms1, i)); - puts(""); - - puts("iterate subspan ms3[1]:"); - ispan2 sub = cspan_submd3(&ms3, 1); - c_foreach (i, ispan2, sub) - printf(" %d", *i.ref); - puts(""); - - cstack_int_drop(&v); -} |
