cbindgen/tests/expectations/layout_aligned_opaque.compat.c
Aleksa Sarai f23d4ee6e8 tests: add tests for #[repr(packed)] and #[repr(align(...))]
The tests are very straightforward, and effecitvely are just ensuring
that the formatting works correctly and is included in all of the
important cases.

It's also very important to ensure we do not generate laid-out structs
for layouts which we cannot reasonably represent in C (such as in cases
where we weren't told what annotation to use for packed and
specifically-aligned structures). Thus, add some tests to verify that
this is the case.

Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
2019-12-15 11:52:23 +01:00

35 lines
813 B
C

#define CBINDGEN_PACKED __attribute__ ((packed))
#define CBINDGEN_ALIGNED(n) __attribute__ ((aligned(n)))
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>
typedef struct OpaqueAlign16Union OpaqueAlign16Union;
typedef struct OpaqueAlign1Struct OpaqueAlign1Struct;
typedef struct OpaqueAlign1Union OpaqueAlign1Union;
typedef struct OpaqueAlign2Struct OpaqueAlign2Struct;
typedef struct OpaqueAlign32Struct OpaqueAlign32Struct;
typedef struct OpaqueAlign4Struct OpaqueAlign4Struct;
typedef struct OpaqueAlign4Union OpaqueAlign4Union;
typedef struct OpaqueAlign8Struct OpaqueAlign8Struct;
typedef struct CBINDGEN_PACKED {
uintptr_t arg1;
uint8_t *arg2;
} PackedStruct;
typedef union CBINDGEN_PACKED {
uintptr_t variant1;
uint8_t *variant2;
} PackedUnion;