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| author | dkf <donal.k.fellows@manchester.ac.uk> | 2002-05-29 10:35:34 (GMT) |
|---|---|---|
| committer | dkf <donal.k.fellows@manchester.ac.uk> | 2002-05-29 10:35:34 (GMT) |
| commit | 52319201a0f33f5984298267ba05ede5689eb818 (patch) | |
| tree | 69690c28d7ea044538f1557ec58740707718d328 /generic/tclInt.h | |
| parent | 3a1941e7d007e93449aa22085687a8fafaddad7e (diff) | |
| download | tcl-52319201a0f33f5984298267ba05ede5689eb818.zip tcl-52319201a0f33f5984298267ba05ede5689eb818.tar.gz tcl-52319201a0f33f5984298267ba05ede5689eb818.tar.bz2 | |
Made Tcl_UniCharNcmp faster on big-endian machines; the system memcmp()is
probably optimized far in excess of anything we could do! Little-endian
just use the old code...
Diffstat (limited to 'generic/tclInt.h')
| -rw-r--r-- | generic/tclInt.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/generic/tclInt.h b/generic/tclInt.h index 3a94802..59da527 100644 --- a/generic/tclInt.h +++ b/generic/tclInt.h @@ -12,7 +12,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclInt.h,v 1.88 2002/05/20 10:22:26 das Exp $ + * RCS: @(#) $Id: tclInt.h,v 1.89 2002/05/29 10:35:45 dkf Exp $ */ #ifndef _TCLINT @@ -2359,6 +2359,23 @@ extern Tcl_Mutex tclObjMutex; #define TclGetString(objPtr) \ ((objPtr)->bytes? (objPtr)->bytes : Tcl_GetString((objPtr))) +/* + *---------------------------------------------------------------- + * Macro used by the Tcl core to compare Unicode strings; this is + * more efficient on a big-endian machine, and not hurtful on a + * little-endian machine. + * The ANSI C "prototype" for this macro is: + * + * EXTERN int TclUniCharNcmp _ANSI_ARGS_((CONST Tcl_UniChar *cs, + * CONST Tcl_UniChar *ct, unsigned long n)); + *---------------------------------------------------------------- + */ +#ifdef TCL_OPTIMIZE_UNICODE_COMPARE +# define TclUniCharNcmp(cs,ct,n) memcmp((cs),(ct),(n)*sizeof(Tcl_UniChar)) +#else /* !TCL_OPTIMIZE_UNICODE_COMPARE */ +# define TclUniCharNcmp Tcl_UniCharNcmp +#endif /* TCL_OPTIMIZE_UNICODE_COMPARE */ + #include "tclIntDecls.h" # undef TCL_STORAGE_CLASS |