diff options
| -rw-r--r-- | generic/tclUtf.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/generic/tclUtf.c b/generic/tclUtf.c index 6e6d386..bcae055 100644 --- a/generic/tclUtf.c +++ b/generic/tclUtf.c @@ -1592,6 +1592,14 @@ Tcl_UniCharNcmp( const Tcl_UniChar *uct, /* Unicode string ucs is compared to. */ unsigned long numChars) /* Number of unichars to compare. */ { +#if defined(WORDS_BIGENDIAN) && (TCL_UTF_MAX != 4) + /* + * We are definitely on a big-endian machine; memcmp() is safe + */ + + return memcmp(ucs, uct, numChars*sizeof(Tcl_UniChar)); + +#else /* !WORDS_BIGENDIAN */ /* * We can't simply call memcmp() because that is not lexically correct. */ @@ -1610,6 +1618,7 @@ Tcl_UniCharNcmp( } } return 0; +#endif /* WORDS_BIGENDIAN */ } /* @@ -1642,6 +1651,14 @@ Tcl_UniCharNcasecmp( Tcl_UniChar lct = Tcl_UniCharToLower(*uct); if (lcs != lct) { +#if TCL_UTF_MAX == 4 + /* special case for handling upper surrogates */ + if (((lcs & 0xFC00) == 0xD800) && ((lct & 0xFC00) != 0xD800)) { + return 1; + } else if (((lct & 0xFC00) == 0xD800)) { + return -1; + } +#endif return (lcs - lct); } } |