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| author | hobbs <hobbs> | 2003-02-15 02:14:33 (GMT) |
|---|---|---|
| committer | hobbs <hobbs> | 2003-02-15 02:14:33 (GMT) |
| commit | 4c59a759acddf715924ba214569ef07d0e78cb05 (patch) | |
| tree | 8318aab7daec160c44b4e65febf1acea3146ad64 /generic/tclStringObj.c | |
| parent | d50d704fc8bf86408b9e2f23add29011da4cce8c (diff) | |
| download | tcl-4c59a759acddf715924ba214569ef07d0e78cb05.zip tcl-4c59a759acddf715924ba214569ef07d0e78cb05.tar.gz tcl-4c59a759acddf715924ba214569ef07d0e78cb05.tar.bz2 | |
generic/tclStringObj.c (Tcl_GetCharLength): perf tweak
Diffstat (limited to 'generic/tclStringObj.c')
| -rw-r--r-- | generic/tclStringObj.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/generic/tclStringObj.c b/generic/tclStringObj.c index 41ecf137..e724e9b 100644 --- a/generic/tclStringObj.c +++ b/generic/tclStringObj.c @@ -33,7 +33,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclStringObj.c,v 1.29 2003/02/11 18:35:11 hobbs Exp $ */ + * RCS: @(#) $Id: tclStringObj.c,v 1.30 2003/02/15 02:14:33 hobbs Exp $ */ #include "tclInt.h" @@ -376,7 +376,7 @@ Tcl_GetCharLength(objPtr) */ if (stringPtr->numChars == -1) { - register int i = 0, len = objPtr->length; + register int i = objPtr->length; register unsigned char *str = (unsigned char *) objPtr->bytes; /* @@ -386,13 +386,14 @@ Tcl_GetCharLength(objPtr) stringPtr->numChars = Tcl_NumUtfChars(objPtr->bytes, objPtr->length); */ - while ((i < len) && (*str < 0xC0)) { i++; str++; } - stringPtr->numChars = i; - if (i < len) { - stringPtr->numChars += Tcl_NumUtfChars(objPtr->bytes + i, len - i); + while (i && (*str < 0xC0)) { i--; str++; } + stringPtr->numChars = objPtr->length - i; + if (i) { + stringPtr->numChars += Tcl_NumUtfChars(objPtr->bytes + + (objPtr->length - i), i); } - if (stringPtr->numChars == len) { + if (stringPtr->numChars == objPtr->length) { /* * Since we've just calculated the number of chars, and all |