diff options
Diffstat (limited to 'iconv/gconv_int.h')
| -rw-r--r-- | iconv/gconv_int.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/iconv/gconv_int.h b/iconv/gconv_int.h index da792a95f5..4b247a815f 100644 --- a/iconv/gconv_int.h +++ b/iconv/gconv_int.h @@ -26,6 +26,34 @@ __BEGIN_DECLS +/* We have to provide support for machines which are not able to handled + unaligned memory accesses. Some of the character encodings have + representations with a fixed width of 2 or 4 bytes. */ +#define get16(addr) \ +({ \ + const struct { uint16_t r; } __attribute__ ((__packed__)) *__ptr \ + = (__typeof(__ptr))(addr); \ + __ptr->r; \ +}) +#define get32(addr) \ +({ \ + const struct { uint32_t r; } __attribute__ ((__packed__)) *__ptr \ + = (__typeof(__ptr))(addr); \ + __ptr->r; \ +}) + +#define put16(addr, val) \ +do { \ + struct { uint16_t r; } __attribute__ ((__packed__)) *__ptr \ + = (__typeof(__ptr))(addr); \ + __ptr->r = val; \ +} while (0) +#define put32(addr, val) \ +do { \ + struct { uint32_t r; } __attribute__ ((__packed__)) *__ptr \ + = (__typeof(__ptr))(addr); \ + __ptr->r = val; \ +} while (0) /* Structure for alias definition. Simply two strings. */ struct gconv_alias |