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glibc/sysdeps/ieee754/ldbl-128ibm-compat/ieee128-vdprintf.c

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ldbl-128ibm-compat: Add regular character printing functions The 'mode' argument to __vfprintf_internal allows the selection of the long double format for all long double arguments requested by the format string. Currently, there are two possibilities: long double with the same format as double or long double as something else. The 'something else' format varies between architectures, and on powerpc64le, it means IBM Extended Precision format. In preparation for the third option of long double format on powerpc64le, this patch uses the new mode mask, PRINTF_LDBL_USES_FLOAT128, which tells __vfprintf_internal to save the floating-point values into variables of type __float128 and adjusts the parameters to __printf_fp and __printf_fphex as if it was a call from strfromf128. Many files from the stdio-common, wcsmbs, argp, misc, and libio directories will have IEEE binary128 counterparts. Setting the correct compiler options to these files (original and counterparts) would produce a large amount of repetitive Makefile rules. To avoid this repetition, this patch adds a Makefile routine that iterates over the files adding or removing the appropriate flags. Tested for powerpc64le. Reviewed-By: Florian Weimer <fweimer@redhat.com> Reviewed-By: Joseph Myers <joseph@codesourcery.com> Reviewed-By: Paul E. Murphy <murphyp@linux.ibm.com>
2019-08-08 13:42:35 +00:00
/* Wrapper for vdprintf. IEEE128 version.
Update copyright dates with scripts/update-copyrights I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2022-01-01 18:54:23 +00:00
Copyright (C) 2019-2022 Free Software Foundation, Inc.
ldbl-128ibm-compat: Add regular character printing functions The 'mode' argument to __vfprintf_internal allows the selection of the long double format for all long double arguments requested by the format string. Currently, there are two possibilities: long double with the same format as double or long double as something else. The 'something else' format varies between architectures, and on powerpc64le, it means IBM Extended Precision format. In preparation for the third option of long double format on powerpc64le, this patch uses the new mode mask, PRINTF_LDBL_USES_FLOAT128, which tells __vfprintf_internal to save the floating-point values into variables of type __float128 and adjusts the parameters to __printf_fp and __printf_fphex as if it was a call from strfromf128. Many files from the stdio-common, wcsmbs, argp, misc, and libio directories will have IEEE binary128 counterparts. Setting the correct compiler options to these files (original and counterparts) would produce a large amount of repetitive Makefile rules. To avoid this repetition, this patch adds a Makefile routine that iterates over the files adding or removing the appropriate flags. Tested for powerpc64le. Reviewed-By: Florian Weimer <fweimer@redhat.com> Reviewed-By: Joseph Myers <joseph@codesourcery.com> Reviewed-By: Paul E. Murphy <murphyp@linux.ibm.com>
2019-08-08 13:42:35 +00:00
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
ldbl-128ibm-compat: Replace http with https in new files Several commits to the ldbl-128ibm-compat directory added new files where the URL in the copyright notice pointed to an http, rather than to an https, address. This happened because I copied the notices before commit ID 5a82c74822d3. This trivial patch fixes this issue.
2019-11-27 21:14:14 +00:00
<https://www.gnu.org/licenses/>. */
ldbl-128ibm-compat: Add regular character printing functions The 'mode' argument to __vfprintf_internal allows the selection of the long double format for all long double arguments requested by the format string. Currently, there are two possibilities: long double with the same format as double or long double as something else. The 'something else' format varies between architectures, and on powerpc64le, it means IBM Extended Precision format. In preparation for the third option of long double format on powerpc64le, this patch uses the new mode mask, PRINTF_LDBL_USES_FLOAT128, which tells __vfprintf_internal to save the floating-point values into variables of type __float128 and adjusts the parameters to __printf_fp and __printf_fphex as if it was a call from strfromf128. Many files from the stdio-common, wcsmbs, argp, misc, and libio directories will have IEEE binary128 counterparts. Setting the correct compiler options to these files (original and counterparts) would produce a large amount of repetitive Makefile rules. To avoid this repetition, this patch adds a Makefile routine that iterates over the files adding or removing the appropriate flags. Tested for powerpc64le. Reviewed-By: Florian Weimer <fweimer@redhat.com> Reviewed-By: Joseph Myers <joseph@codesourcery.com> Reviewed-By: Paul E. Murphy <murphyp@linux.ibm.com>
2019-08-08 13:42:35 +00:00
#include <libio/libioP.h>
extern int
___ieee128_vdprintf (int d, const char *format, va_list ap)
{
return __vdprintf_internal (d, format, ap, PRINTF_LDBL_USES_FLOAT128);
}
strong_alias (___ieee128_vdprintf, __vdprintfieee128)
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