Help wanted with bkgd() rookie mistake

[G. Branden Robinson]

Hi folks,

I come once again to confess my confusion with basic curses operations.

Please find attached two C programs; I call them "bkgd" and "bkgrnd",
because they correspond to curses functions of the same name.

bkgrnd, the wide-character program, works fine.

bkgd, which you'd think would be simpler, doesn't.

In both, I expect the background character to be set to an underlined @
sign.

But only bkgrnd() is behaving this way.  It seems that logically or-ing
the character literal '@' with A_UNDERLINE is somehow wiping out the
character part.  Except it's not, because if I printf that expression as
a decimal integer, I can see that they indeed compose.

bkgd() seems to be discarding my character code.  What am I not
understanding?

Regards,
Branden

bkgd.c
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bkgrnd.c
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