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author | Ulrich Drepper <drepper@redhat.com> | 2000-03-31 20:44:49 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2000-03-31 20:44:49 +0000 |
commit | c1db8b0ddfc46134b903ff3803e9aea1cf9e55d9 (patch) | |
tree | 50b3b9edf1a415620103612f06d75c07a46eeb5c /iconv/gconv_simple.c | |
parent | c0c2af07991283edd947c5a11df162ccb486e74a (diff) | |
download | glibc-c1db8b0ddfc46134b903ff3803e9aea1cf9e55d9.zip glibc-c1db8b0ddfc46134b903ff3803e9aea1cf9e55d9.tar.gz glibc-c1db8b0ddfc46134b903ff3803e9aea1cf9e55d9.tar.bz2 |
Update.
* iconv/skeleton.c: Define access macros with u suffix. Adjust
#if expression for use of unaligned function to the one used in
the definition of these functions.
* iconv/gconv_simple.c (internal_ucs4_loop_unaligned): New function.
(internal_ucs4le_loop_unaligned): New function.
Ralf Baechle <ralf@uni-koblenz.de>
Diffstat (limited to 'iconv/gconv_simple.c')
-rw-r--r-- | iconv/gconv_simple.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/iconv/gconv_simple.c b/iconv/gconv_simple.c index 3cf0589..9710eb1 100644 --- a/iconv/gconv_simple.c +++ b/iconv/gconv_simple.c @@ -99,6 +99,52 @@ internal_ucs4_loop (const unsigned char **inptrp, const unsigned char *inend, return result; } +#ifndef _STRING_ARCH_unaligned +static inline int +internal_ucs4_loop_unaligned (const unsigned char **inptrp, + const unsigned char *inend, + unsigned char **outptrp, unsigned char *outend, + mbstate_t *state, void *data, size_t *converted) +{ + const unsigned char *inptr = *inptrp; + unsigned char *outptr = *outptrp; + size_t n_convert = MIN (inend - inptr, outend - outptr) / 4; + int result; + +# if __BYTE_ORDER == __LITTLE_ENDIAN + /* Sigh, we have to do some real work. */ + size_t cnt; + + for (cnt = 0; cnt < n_convert; ++cnt, inptr += 4, outptr += 4) + { + outptr[0] = inptr[3]; + outptr[1] = inptr[2]; + outptr[2] = inptr[1]; + outptr[3] = inptr[0]; + } + + *inptrp = inptr; + *outptrp = outptr; +# elif __BYTE_ORDER == __BIG_ENDIAN + /* Simply copy the data. */ + *inptrp = inptr + n_convert * 4; + *outptrp = __mempcpy (outptr, inptr, n_convert * 4); +# else +# error "This endianess is not supported." +# endif + + /* Determine the status. */ + if (*outptrp == outend) + result = __GCONV_FULL_OUTPUT; + else if (*inptrp == inend) + result = __GCONV_EMPTY_INPUT; + else + result = __GCONV_INCOMPLETE_INPUT; + + return result; +} +#endif + #include <iconv/skeleton.c> @@ -151,6 +197,53 @@ internal_ucs4le_loop (const unsigned char **inptrp, const unsigned char *inend, return result; } +#ifndef _STRING_ARCH_unaligned +static inline int +internal_ucs4le_loop_unaligned (const unsigned char **inptrp, + const unsigned char *inend, + unsigned char **outptrp, unsigned char *outend, + mbstate_t *state, void *data, + size_t *converted) +{ + const unsigned char *inptr = *inptrp; + unsigned char *outptr = *outptrp; + size_t n_convert = MIN (inend - inptr, outend - outptr) / 4; + int result; + +# if __BYTE_ORDER == __BIG_ENDIAN + /* Sigh, we have to do some real work. */ + size_t cnt; + + for (cnt = 0; cnt < n_convert; ++cnt, inptr += 4) + { + outptr[0] = inptr[3]; + outptr[1] = inptr[2]; + outptr[2] = inptr[1]; + outptr[3] = inptr[0]; + } + + *inptrp = inptr; + *outptrp = outptr; +# elif __BYTE_ORDER == __LITTLE_ENDIAN + /* Simply copy the data. */ + *inptrp = inptr + n_convert * 4; + *outptrp = __mempcpy (outptr, inptr, n_convert * 4); +# else +# error "This endianess is not supported." +# endif + + /* Determine the status. */ + if (*outptrp == outend) + result = __GCONV_FULL_OUTPUT; + else if (*inptrp == inend) + result = __GCONV_EMPTY_INPUT; + else + result = __GCONV_INCOMPLETE_INPUT; + + return result; +} +#endif + #include <iconv/skeleton.c> |