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Re: [PATCH] Preserve ::is{inf,nan}{f,l} prototypes even for C++11 and later
- From: Andreas Schwab <schwab at suse dot de>
- To: "Carlos O'Donell" <carlos at redhat dot com>
- Cc: Jonathan Wakely <jwakely at redhat dot com>, Adhemerval Zanella <adhemerval dot zanella at linaro dot org>, Jakub Jelinek <jakub at redhat dot com>, libc-alpha at sourceware dot org
- Date: Tue, 23 Feb 2016 16:23:42 +0100
- Subject: Re: [PATCH] Preserve ::is{inf,nan}{f,l} prototypes even for C++11 and later
- Authentication-results: sourceware.org; auth=none
- References: <20160201162152 dot GH3017 at tucnak dot redhat dot com> <20160201163400 dot GH3471 at redhat dot com> <56B23119 dot 3050605 at linaro dot org> <20160203174027 dot GK7732 at vapier dot lan> <56B2413D dot 1070309 at linaro dot org> <20160209172356 dot GC8441 at redhat dot com> <56BA240E dot 2080405 at redhat dot com> <56BA602E dot 5090009 at redhat dot com>
"Carlos O'Donell" <carlos@redhat.com> writes:
> diff --git a/math/test-math-isinff.cc b/math/test-math-isinff.cc
> new file mode 100644
> index 0000000..195d753
> --- /dev/null
> +++ b/math/test-math-isinff.cc
> @@ -0,0 +1,48 @@
> +/* Test for bug 19439.
> + Copyright (C) 2016 Free Software Foundation, Inc.
> + This file is part of the GNU C Library.
> +
> + The GNU C Library is free software; you can redistribute it and/or
> + modify it under the terms of the GNU Lesser General Public
> + License as published by the Free Software Foundation; either
> + version 2.1 of the License, or (at your option) any later version.
> +
> + The GNU C Library is distributed in the hope that it will be useful,
> + but WITHOUT ANY WARRANTY; without even the implied warranty of
> + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + Lesser General Public License for more details.
> +
> + You should have received a copy of the GNU Lesser General Public
> + License along with the GNU C Library; if not, see
> + <http://www.gnu.org/licenses/>. */
> +
> +#define _GNU_SOURCE 1
> +#include <math.h>
> +#include <stdio.h>
> +#include <stdlib.h>
> +
> +static int
> +do_test (void)
> +{
> + /* Verify that isinff, isinfl, isnanf, and isnanlf are defined
> + in the header under C++11 and can be called. Without the
> + header fix this test will not compile. */
> + if (isinff (1.0f)
> + || !isinff (INFINITY)
> + || isinfl (1.0L)
> + || !isinfl (INFINITY)
> + || isnanf (2.0f)
> + || !isnanf (NAN)
> + || isnanl (2.0L)
> + || !isnanl (NAN))
That doesn't compile on platforms where long == long double, since they
do not declare any *l functions (arm, hppa, mips/o32).
test-math-isinff.cc: In function 'int do_test()':
test-math-isinff.cc:33:22: error: 'isinfl' was not declared in this scope
|| isinfl (1.0L)
^
test-math-isinff.cc:37:22: error: 'isnanl' was not declared in this scope
|| isnanl (2.0L)
^
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
- References:
- [PATCH] Preserve ::is{inf,nan}{f,l} prototypes even for C++11 and later
- Re: [PATCH] Preserve ::is{inf,nan}{f,l} prototypes even for C++11 and later
- Re: [PATCH] Preserve ::is{inf,nan}{f,l} prototypes even for C++11 and later
- Re: [PATCH] Preserve ::is{inf,nan}{f,l} prototypes even for C++11 and later
- Re: [PATCH] Preserve ::is{inf,nan}{f,l} prototypes even for C++11 and later
- Re: [PATCH] Preserve ::is{inf,nan}{f,l} prototypes even for C++11 and later
- Re: [PATCH] Preserve ::is{inf,nan}{f,l} prototypes even for C++11 and later
- Re: [PATCH] Preserve ::is{inf,nan}{f,l} prototypes even for C++11 and later