Re: wide characters, get_wch() and form_driver() - cannot get them working together.

[Thomas Dickey]

On Wed, 18 Jun 2008, Adam Spragg wrote:

> I configured ncurses with the command line:
>  ./configure --prefix=/home/adam --enable-widec --with-shared
>
> and checked the test program was loading the new copy of the library
> with strace.
>
> Anything else I can check on my end?

Using ncurses's trace, I can see that the form_driver is seeing the 
parameter passed to it as sign-extended.  That's happening in this
line:

                    if ((i = form_driver(form, buf[j])) != E_OK) {

since 'buf' is a (by default on some platforms) signed char.
A quick check with that changed to unsigned char seems to work.

I built ncurses using the --with-trace option (which makes it slightly 
slower, and bigger, but is useful for debugging), and set the 
NCURSES_TRACE environment variable to turn on the tracing feature...

--
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net