diff options
| -rw-r--r-- | py/binary.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/py/binary.c b/py/binary.c index 3f1d7f2867..65688272aa 100644 --- a/py/binary.c +++ b/py/binary.c @@ -26,6 +26,7 @@ #include <stdint.h> #include <stdlib.h> +#include <stddef.h> #include <string.h> #include <assert.h> @@ -37,6 +38,10 @@ // Helpers to work with binary-encoded data +#ifndef alignof +#define alignof(type) offsetof(struct { char c; type t; }, t) +#endif + int mp_binary_get_size(char struct_type, char val_type, uint *palign) { int size = 0; int align = 1; @@ -68,16 +73,20 @@ int mp_binary_get_size(char struct_type, char val_type, uint *palign) { case 'b': case 'B': align = size = 1; break; case 'h': case 'H': - align = size = sizeof(short); break; + align = alignof(short); + size = sizeof(short); break; case 'i': case 'I': - align = size = sizeof(int); break; + align = alignof(int); + size = sizeof(int); break; case 'l': case 'L': - align = size = sizeof(long); break; + align = alignof(long); + size = sizeof(long); break; case 'q': case 'Q': - // TODO: This is for x86 - align = sizeof(int); size = sizeof(long long); break; + align = alignof(long long); + size = sizeof(long long); break; case 'P': case 'O': case 'S': - align = size = sizeof(void*); break; + align = alignof(void*); + size = sizeof(void*); break; } } } |