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From:	Esa A E Peuha <esa DOT peuha AT helsinki DOT fi>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Bug in mbstowcs() in DJGPP's C library
Date:	27 Jun 2007 14:40:29 +0300
Organization:	University of Helsinki
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Brian Inglis <Brian DOT Inglis AT SystematicSW DOT Invalid> writes:

> mbstowcs() should be using the support(ed) function mbtowc() to do wide
> character conversion to "do the right thing" and allow mbs and wcs
> support to be added to the lower level function in future. 

No, mbstowcs() must not call mbtowc() directly; instead, they should
both call another function which does the actual conversion.  The reason
for this is that mbtowc() must preserve shift state across calls, and
neither mbstowcs() nor any other library function is allowed to change
it.  The same requirement applies to wcstombs() and wctomb().

-- 
Esa Peuha
student of mathematics at the University of Helsinki
http://www.helsinki.fi/~peuha/

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