diff options
| author | piaip <piaip@63ad8ddf-47c3-0310-b6dd-a9e9d9715204> | 2007-12-11 09:49:03 +0800 |
|---|---|---|
| committer | piaip <piaip@63ad8ddf-47c3-0310-b6dd-a9e9d9715204> | 2007-12-11 09:49:03 +0800 |
| commit | b54b6d5d4b176a137b6095024d3db80ede286555 (patch) | |
| tree | 81fe98fd8b50f5eac57e45c9f74f6911509d9ad3 /include/fnv_hash.h | |
| parent | 9c92e958fd4f6a5d25cbab9d80e0fee8aa70c478 (diff) | |
| download | pttbbs-b54b6d5d4b176a137b6095024d3db80ede286555.tar pttbbs-b54b6d5d4b176a137b6095024d3db80ede286555.tar.gz pttbbs-b54b6d5d4b176a137b6095024d3db80ede286555.tar.bz2 pttbbs-b54b6d5d4b176a137b6095024d3db80ede286555.tar.lz pttbbs-b54b6d5d4b176a137b6095024d3db80ede286555.tar.xz pttbbs-b54b6d5d4b176a137b6095024d3db80ede286555.tar.zst pttbbs-b54b6d5d4b176a137b6095024d3db80ede286555.zip | |
- search: must update SR name to match new DBCS aware search
git-svn-id: http://opensvn.csie.org/pttbbs/trunk/pttbbs@3663 63ad8ddf-47c3-0310-b6dd-a9e9d9715204
Diffstat (limited to 'include/fnv_hash.h')
| -rw-r--r-- | include/fnv_hash.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/fnv_hash.h b/include/fnv_hash.h index 837fd66c..c85b3c27 100644 --- a/include/fnv_hash.h +++ b/include/fnv_hash.h @@ -70,6 +70,31 @@ fnv1a_32_strcase(const char *str, Fnv32_t hval) return hval; } +static __inline Fnv32_t +fnv1a_32_dbcs_strcase(const char *str, Fnv32_t hval) +{ + const unsigned char *s = (const unsigned char *)str; + Fnv32_t c; + char isDBCS = 0; + + while ((c = *s++) != 0) { + if (isDBCS) + { + // 2nd DBCS + isDBCS = 0; + } else { + // ASCII? + if ( c < 0x80) + c = toupper(c); + else + isDBCS = 1; + } + hval ^= c; + hval *= FNV_32_PRIME; + } + return hval; +} + static __inline Fnv64_t fnv_64_buf(const void *buf, size_t len, Fnv64_t hval) { |