diff options
Diffstat (limited to 'OpenAL32/Include/alMain.h')
| -rw-r--r-- | OpenAL32/Include/alMain.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/OpenAL32/Include/alMain.h b/OpenAL32/Include/alMain.h index 191bb658..3a8aabde 100644 --- a/OpenAL32/Include/alMain.h +++ b/OpenAL32/Include/alMain.h @@ -225,6 +225,12 @@ typedef ALuint64SOFT ALuint64; #define DECL_FORMAT(x, y, z) #endif +/* Calculates the size of a struct with N elements of a flexible array member. + * GCC and Clang allow offsetof(Type, fam[N]) for this, but MSVC seems to have + * trouble, so a bit more verbose workaround is needed. + */ +#define FAM_SIZE(T, M, N) (offsetof(T, M) + sizeof(((T*)NULL)->M[0])*(N)) + #if defined(__GNUC__) && defined(__i386__) /* force_align_arg_pointer is required for proper function arguments aligning * when SSE code is used. Some systems (Windows, QNX) do not guarantee our |