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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: get_immediate echoe character--compiled error?
Date: Tue, 03 Oct 2023 11:20:40 +0100
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Niklas Holsti <niklas.holsti@tidorum.invalid> writes:

> Possibly this is why AdaCore have given different echoing behaviors to
> the two forms of Get_Immediate, with and without the "Available"
> parameter. If so, this echo difference is unfortunately coupled with
> the wait/no-wait behavior difference, and that coupling may be
> unwanted.

The low-level Get_Immediate implementation is in sysdep.c (probably not
in the adainclude/ directory in an installed compiler), in
getc_immediate() and getc_immediate_nowait(), both of which call
getc_immediate_common(), and I can't see any difference! ECHO gets
turned off in getc_immediate_common(), regardless of caller - see link.

https://github.com/gcc-mirror/gcc/blob/3ca09d684e496240a87c0327687e2898060c2363/gcc/ada/sysdep.c#L387