Message 85455 - Python tracker

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Author	vstinner
Recipients	benjamin.peterson, ocean-city, pitrou, vstinner
Date	2009-04-05.00:39:56
SpamBayes Score	0.00026025722
Marked as misclassified	No
Message-id	<1238891998.79.0.200853751869.issue5410@psf.upfronthosting.co.za>
In-reply-to

Content
> There seems to be a problem with ungetwch() I tested Visual C++ Express 2008 and it looks like _ungetwch() only keep 8 lower bits (like _ungetwch(x & 255)). But it's a bug in Microsoft library, not in Python code (I added some printf to be sure). My patch (msvcrt_wchar.patch) makes the situation better, but it's not perfect because of a bug in Microsoft's library. msvcrt.getwch() works correctly with characters with code > 255 (eg. euro sign, U+20ac, 8364 in decimal).

> There seems to be a problem with ungetwch()

I tested Visual C++ Express 2008 and it looks like _ungetwch() only 
keep 8 lower bits (like _ungetwch(x & 255)). But it's a bug in 
Microsoft library, not in Python code (I added some printf to be 
sure).

My patch (msvcrt_wchar.patch) makes the situation better, but it's not 
perfect because of a bug in Microsoft's library.

msvcrt.getwch() works correctly with characters with code > 255 (eg. 
euro sign, U+20ac, 8364 in decimal).

History
Date	User	Action	Args
2009-04-05 00:39:59	vstinner	set	recipients: + vstinner, pitrou, ocean-city, benjamin.peterson
2009-04-05 00:39:58	vstinner	set	messageid: <1238891998.79.0.200853751869.issue5410@psf.upfronthosting.co.za>
2009-04-05 00:39:56	vstinner	link	issue5410 messages
2009-04-05 00:39:56	vstinner	create