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ldbl-opt: Add error and error_at_line (bug 23984)

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On platforms where long double may have the same format as double
(-mlong-double-64), error and error_at_line do not take that into
account and might produce wrong output if a long double conversion is
requested by the format string ('%Lf').  This patch adds compatibility
functions for this situation and redirects calls via header magic.

Tested for powerpc, powerpc64 and powerpc64le.
This commit is contained in:
Gabriel F. T. Gomes
2018-08-08 17:26:22 -03:00
parent 90188e7d1a
commit d11086a939
17 changed files with 120 additions and 4 deletions
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24
misc/bits/error-ldbl.h Normal file
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/* Redirections for error.h functions for -mlong-double-64.
Copyright (C) 2019 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/>. */
#ifndef _ERROR_H
# error "Never include <bits/error-ldbl.h> directly; use <error.h> instead."
#endif
__LDBL_REDIR_DECL (error)
__LDBL_REDIR_DECL (error_at_line)