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Re: strange char echo

From: Thomas Dickey
Subject: Re: strange char echo
Date: Thu, 5 Nov 2009 18:53:33 -0500 (EST)

On Thu, 5 Nov 2009, Scott Furry wrote:

Two schools of thought....
a) hardware
b) software

For a) assuming some kind of external comms - do you have some form of loop back? I'm going to say this is probably unlikely and would be special case. However, I have to throw it out.

For b) when you did you initial build (assuming you built from source) did you config using the flag "with_sp_funcs"? From the source see the configure file (line 9350 sets the flag NCURSES_SP_FUNCS) and lib_echo.c (NCURSES_SP_FUNCS is used to enable the build of the noecho function at line 77).

You're being misled by a trick with the ifdef's and define's: there's
always a "noecho", but the ifdef's provide a different name for the
function which accepts a SCREEN* parameter.  Since the bulk of the logic
in most cases is in the latter, the plain "noecho" looks like it's just
an add-on.


Bryan Christ wrote:
does anyone know what might cause characters to be echoed to the screen
even though noecho() was called at startup?

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