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| author | June McEnroe <programble@gmail.com> | 2017-07-30 14:08:56 -0400 |
|---|---|---|
| committer | June McEnroe <programble@gmail.com> | 2017-07-30 14:08:56 -0400 |
| commit | cdd33ec3e443a0dcadb3e1da58ec5a4b7035ac35 (patch) | |
| tree | a67f532f576d81564fd0f155fa4fc8218d429420 | |
| parent | Add chroot.sh (diff) | |
| download | torus-cdd33ec3e443a0dcadb3e1da58ec5a4b7035ac35.tar.gz torus-cdd33ec3e443a0dcadb3e1da58ec5a4b7035ac35.zip | |
Assert stable struct Tile field offsets
| -rw-r--r-- | torus.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/torus.h b/torus.h index 23b4708..bb012f2 100644 --- a/torus.h +++ b/torus.h @@ -1,6 +1,7 @@ +#include <assert.h> #include <stdbool.h> +#include <stddef.h> #include <stdint.h> -#include <assert.h> #define ALIGNED(x) __attribute__((aligned(x))) @@ -29,6 +30,8 @@ struct Tile { uint8_t colors[CELL_ROWS][CELL_COLS] ALIGNED(16); } ALIGNED(4096); static_assert(sizeof(struct Tile) == 4096, "struct Tile is page-sized"); +static_assert(offsetof(struct Tile, cells) == 16, "stable cells offset"); +static_assert(offsetof(struct Tile, colors) == 2016, "stable colors offset"); #define TILE_ROWS (512) #define TILE_COLS (512) |