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From: Joseph Myers <joseph@codesourcery.com>
To: Harald Anlauf <anlauf@gmx.de>
Cc: Tobias Burnus <tobias@codesourcery.com>,
	fortran <fortran@gcc.gnu.org>,
	gcc-patches <gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH] PR fortran/50549 - should detect different type parameters in structure constructors
Date: Mon, 28 Mar 2022 21:52:43 +0000	[thread overview]
Message-ID: <alpine.DEB.2.22.394.2203282148210.331358@digraph.polyomino.org.uk> (raw)
In-Reply-To: <b6fb983d-ce50-0b00-8c76-fd4a23c12c01@gmx.de>

On Mon, 28 Mar 2022, Harald Anlauf via Gcc-patches wrote:

> Hi Tobias,
> 
> sorry for replying to myself now, but
> 
> Am 28.03.22 um 22:03 schrieb Harald Anlauf via Fortran:
> > All current cases of printing a HOST_WIDE_INT in gcc/fortran/ use
> > 'sprintf', and I did not find any other use of %wd/%wu.  So the
> > mentioned implementation is not really stressed yet... ;-)
> 
> using HOST_WIDE_INT_PRINT_DEC in the format argument to gfc_error
> instead of using %wd does not produce a warning and works.
> (Also verified with insane character lengths on x86_64).

Using string concatenation with a macro is not appropriate in a message 
argument to a diagnostic function, because it means the full string (which 
has to be host-independent) doesn't get extracted for translation.

HOST_WIDE_INT_PRINT_* are printf formats for the host printf function (for 
example, they might use %I64d on Windows host), and are not generally 
understood by the diagnostic.cc machinery at all; functions using the GCC 
diagnostic machinery need to use GCC diagnostic formats (which are 
independent of the host printf function), such as %wd/%wu.

-- 
Joseph S. Myers
joseph@codesourcery.com

  parent reply	other threads:[~2022-03-28 21:52 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-27 19:44 Harald Anlauf
2022-03-28 10:05 ` Tobias Burnus
2022-03-28 20:03   ` Harald Anlauf
2022-03-28 20:03     ` Harald Anlauf
2022-03-28 21:08     ` Harald Anlauf
2022-03-28 21:08       ` Harald Anlauf
2022-03-28 21:52       ` Joseph Myers [this message]
2022-03-29  7:14     ` Tobias Burnus
2022-03-29 18:48       ` Harald Anlauf
2022-03-29 18:48         ` Harald Anlauf

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