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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>
63 lines
2.3 KiB
C
63 lines
2.3 KiB
C
/* 4.4BSD utility functions for error messages.
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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 _ERR_H
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#define _ERR_H 1
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#include <features.h>
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#define __need___va_list
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#include <stdarg.h>
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#ifndef __GNUC_VA_LIST
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# define __gnuc_va_list void *
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#endif
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__BEGIN_DECLS
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/* Print "program: ", FORMAT, ": ", the standard error string for errno,
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and a newline, on stderr. */
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extern void warn (const char *__format, ...)
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__attribute__ ((__format__ (__printf__, 1, 2)));
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extern void vwarn (const char *__format, __gnuc_va_list)
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__attribute__ ((__format__ (__printf__, 1, 0)));
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/* Likewise, but without ": " and the standard error string. */
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extern void warnx (const char *__format, ...)
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__attribute__ ((__format__ (__printf__, 1, 2)));
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extern void vwarnx (const char *__format, __gnuc_va_list)
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__attribute__ ((__format__ (__printf__, 1, 0)));
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/* Likewise, and then exit with STATUS. */
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extern void err (int __status, const char *__format, ...)
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__attribute__ ((__noreturn__, __format__ (__printf__, 2, 3)));
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extern void verr (int __status, const char *__format, __gnuc_va_list)
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__attribute__ ((__noreturn__, __format__ (__printf__, 2, 0)));
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extern void errx (int __status, const char *__format, ...)
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__attribute__ ((__noreturn__, __format__ (__printf__, 2, 3)));
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extern void verrx (int __status, const char *, __gnuc_va_list)
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__attribute__ ((__noreturn__, __format__ (__printf__, 2, 0)));
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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/err-ldbl.h>
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#endif
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__END_DECLS
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#endif /* err.h */
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