Digital Mars - c++

↑ ↓ ← → John Jameson <johnj labcenter.co.uk> writes:

The ctype functions isspace() and friends are unaware of whether
the compiler is set to treat chars as signed or unsigned. So things
like isspace('�') produce random results depending on what is in
memory before the _pctype array.

Should ALL the macros in ctype.h cast to unsigned char? Curiously,
the isleadbyte() macro already does.

Mar 14 2007

↑ ↓ ← → Bertel Brander <bertel post4.tele.dk> writes:

John Jameson skrev:
 The ctype functions isspace() and friends are unaware of whether
 the compiler is set to treat chars as signed or unsigned. So things
 like isspace('�') produce random results depending on what is in
 memory before the _pctype array.
 
 Should ALL the macros in ctype.h cast to unsigned char? Curiously,
 the isleadbyte() macro already does.


You should cast the argument to the macros/functions in ctype.h
to unsigned.

-- 
Just another homepage:
http://damb.dk
But it's mine - Bertel

Mar 14 2007

c++ - ctype.h