Message 196788 - Python tracker

Message196788

Author	lemburg
Recipients	ezio.melotti, gvanrossum, kennyluck, lemburg, loewis, serhiy.storchaka, tchrist, vstinner
Date	2013-09-02.15:53:23
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<5224B471.3080809@egenix.com>
In-reply-to	<1378136048.08.0.601314131306.issue12892@psf.upfronthosting.co.za>

Content
You should be able to squeeze out some extra cycles by avoiding the bit calculations using a simple range check for ch >= 0xd800: +# if STRINGLIB_MAX_CHAR >= 0xd800 + if (((ch1 ^ 0xd800) & + (ch1 ^ 0xd800) & + (ch1 ^ 0xd800) & + (ch1 ^ 0xd800) & 0xf800) == 0) + break; +# endif

Content

You should be able to squeeze out some extra cycles by
avoiding the bit calculations using a simple range check
for ch >= 0xd800:

+# if STRINGLIB_MAX_CHAR >= 0xd800
+            if (((ch1 ^ 0xd800) &
+                 (ch1 ^ 0xd800) &
+                 (ch1 ^ 0xd800) &
+                 (ch1 ^ 0xd800) & 0xf800) == 0)
+                break;
+# endif

History
Date	User	Action	Args
2013-09-02 15:53:23	lemburg	set	recipients: + lemburg, gvanrossum, loewis, vstinner, ezio.melotti, tchrist, kennyluck, serhiy.storchaka
2013-09-02 15:53:23	lemburg	link	issue12892 messages
2013-09-02 15:53:23	lemburg	create