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Re: [Treelang] flag_signed_char

From: Jim Wilson <wilson at specifix dot com>
To: Rafael Espíndola <rafael dot espindola at gmail dot com>
Cc: gcc at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org
Date: Mon, 14 Nov 2005 17:10:07 -0800
Subject: Re: [Treelang] flag_signed_char
References: <564d96fb0511091647s5f34d309s37e2d6e8978c0c55@mail.gmail.com>

Rafael Espíndola wrote:

Why does treelang defines signedness of char with flag_signed_char?
IMHO it would be better if it had a fixed definition of it. I have
tried to use

Signedness of char depends on the OS. If you want compatibility with C, and in particular, the standard C library, then you should use the OS default, which is obtained from flag_signed_char.

flag_signed_char can also be overriden by user options, but this is not the main reason for using it.

Did you try testing this on a system where "char" defaults to unsigned char? It is possible that the patch might work fine on a signed-char system, but fail on an unsigned-char system. -- Jim Wilson, GNU Tools Support, http://www.specifix.com

Follow-Ups:
- Re: [Treelang] flag_signed_char
  - From: Rafael Ávila de Espíndola

References:
- [Treelang] flag_signed_char
  - From: Rafael Espíndola

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