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| author | June McEnroe <june@causal.agency> | 2017-07-30 14:08:56 -0400 |
|---|---|---|
| committer | June McEnroe <june@causal.agency> | 2017-07-30 14:08:56 -0400 |
| commit | 71bab09c60e0d6c1043bebf97a83c41517562dde (patch) | |
| tree | 57f4e0237251054282fc4a77483f660dced8dfb9 /torus.h | |
| parent | Add chroot.sh (diff) | |
| download | torus-71bab09c60e0d6c1043bebf97a83c41517562dde.tar.gz torus-71bab09c60e0d6c1043bebf97a83c41517562dde.zip | |
Assert stable struct Tile field offsets
Diffstat (limited to '')
| -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) |