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e4a3999213
All functions that have a format string, which can consume a long double argument, must have one version for each long double format supported on a platform. On powerpc64le, these functions currently have two versions (i.e.: long double with the same format as double, and long double with IBM Extended Precision format). Support for a third long double format option (i.e. long double with IEEE long double format) is being prepared and all the aforementioned functions now have a third version (not yet exported on the master branch, but the code is in). For these functions to get selected (during build time), references to them in user programs (or dependent libraries) must get redirected to the aforementioned new versions of the functions. This patch installs the header magic required to perform such redirections. Notice, however, that since the redirections only happen when __LONG_DOUBLE_USES_FLOAT128 is set to 1, and no platform (including powerpc64le) currently does it, no redirections actually happen. Redirections and the exporting of the new functions will happen at the same time (when powerpc64le adds ldbl-128ibm-compat to their Implies. Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com> Reviewed-by: Paul E. Murphy <murphyp@linux.vnet.ibm.com>
66 lines
2.4 KiB
C
66 lines
2.4 KiB
C
/* Declaration for error-reporting function
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Copyright (C) 1995-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _ERROR_H
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#define _ERROR_H 1
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#include <features.h>
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__BEGIN_DECLS
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/* Print a message with `fprintf (stderr, FORMAT, ...)';
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if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
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If STATUS is nonzero, terminate the program with `exit (STATUS)'. */
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extern void error (int __status, int __errnum, const char *__format, ...)
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__attribute__ ((__format__ (__printf__, 3, 4)));
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extern void error_at_line (int __status, int __errnum, const char *__fname,
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unsigned int __lineno, const char *__format, ...)
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__attribute__ ((__format__ (__printf__, 5, 6)));
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/* If NULL, error will flush stdout, then print on stderr the program
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name, a colon and a space. Otherwise, error will call this
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function without parameters instead. */
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extern void (*error_print_progname) (void);
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/* This variable is incremented each time `error' is called. */
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extern unsigned int error_message_count;
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/* Sometimes we want to have at most one error per line. This
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variable controls whether this mode is selected or not. */
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extern int error_one_per_line;
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#include <bits/floatn.h>
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#if defined __LDBL_COMPAT || __LONG_DOUBLE_USES_FLOAT128 == 1
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# include <bits/error-ldbl.h>
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#else
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/* Do not inline error and error_at_line when long double has the same
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size of double, nor when long double reuses the float128
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implementation, because that would invalidate the redirections to the
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compatibility functions. */
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# if defined __extern_always_inline && defined __va_arg_pack
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# include <bits/error.h>
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# endif
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#endif
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__END_DECLS
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#endif /* error.h */
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