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dprintf-gnu: New module.

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* m4/dprintf-posix.m4 (gl_FUNC_DPRINTF_IS_POSIX): New macro,
extracted from gl_FUNC_DPRINTF_POSIX.
(gl_FUNC_DPRINTF_POSIX): Require it. Invoke
gl_PREREQ_VASNPRINTF_WITH_POSIX_EXTRAS.
* m4/dprintf-gnu.m4: New file, based on m4/dprintf-posix.m4.
* modules/dprintf-gnu: New file, based on modules/vasnprintf-gnu.
* doc/posix-functions/dprintf.texi: Mention the new module.
This commit is contained in:
Bruno Haible
2023-03-24 12:04:20 +01:00
parent a8fa5b6d61
commit 75e6308183
5 changed files with 88 additions and 21 deletions
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11
ChangeLog
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@@ -1,3 +1,14 @@
2023-03-24 Bruno Haible <bruno@clisp.org>
dprintf-gnu: New module.
* m4/dprintf-posix.m4 (gl_FUNC_DPRINTF_IS_POSIX): New macro,
extracted from gl_FUNC_DPRINTF_POSIX.
(gl_FUNC_DPRINTF_POSIX): Require it. Invoke
gl_PREREQ_VASNPRINTF_WITH_POSIX_EXTRAS.
* m4/dprintf-gnu.m4: New file, based on m4/dprintf-posix.m4.
* modules/dprintf-gnu: New file, based on modules/vasnprintf-gnu.
* doc/posix-functions/dprintf.texi: Mention the new module.
2023-03-24 Bruno Haible <bruno@clisp.org>
vdprintf-gnu: Add tests.

13
doc/posix-functions/dprintf.texi
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@@ -4,16 +4,16 @@
POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/dprintf.html}
Gnulib module: dprintf or dprintf-posix
Gnulib module: dprintf or dprintf-posix or dprintf-gnu
Portability problems fixed by either Gnulib module @code{dprintf} or @code{dprintf-posix}:
Portability problems fixed by either Gnulib module @code{dprintf} or @code{dprintf-posix} or @code{dprintf-gnu}:
@itemize
@item
This function is missing on many non-glibc platforms:
Mac OS X 10.5, FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 11.3, Cygwin 1.5.x, mingw, MSVC 14.
@end itemize
Portability problems fixed by Gnulib module @code{dprintf-posix}:
Portability problems fixed by either Gnulib module @code{dprintf-posix} or @code{dprintf-gnu}:
@itemize
@item
printf @code{"%f"}, @code{"%e"}, @code{"%g"} of Infinity and NaN yields an
@@ -50,6 +50,13 @@ wide character argument on some platforms:
glibc 2.35, FreeBSD 13.1, NetBSD 9.0, OpenBSD 7.2, macOS 12.5, AIX 7.2, Solaris 11.4, and others.
@end itemize
Portability problems fixed by Gnulib module @code{dprintf-gnu}:
@itemize
@item
This function does not support the @samp{B} directive on some platforms:
glibc 2.34, FreeBSD 13.1, NetBSD 9.0, OpenBSD 7.2, macOS 12.5, AIX 7.2, Solaris 11.4, and others.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@item

25
m4/dprintf-gnu.m4 Normal file
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@@ -0,0 +1,25 @@
# dprintf-gnu.m4 serial 1
dnl Copyright (C) 2023 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_DPRINTF_GNU],
[
AC_REQUIRE([gl_FUNC_DPRINTF_IS_POSIX])
AC_REQUIRE([gl_PRINTF_DIRECTIVE_UPPERCASE_B])
gl_cv_func_dprintf_gnu=no
if test $gl_cv_func_dprintf_posix = yes; then
case "$gl_cv_func_printf_directive_uppercase_b" in
*yes)
# dprintf exists and is already POSIX compliant and GNU compatible.
gl_cv_func_dprintf_gnu=yes
;;
esac
fi
if test $gl_cv_func_dprintf_gnu = no; then
gl_PREREQ_VASNPRINTF_WITH_GNU_EXTRAS
gl_REPLACE_VASNPRINTF
gl_REPLACE_DPRINTF
fi
])

31
m4/dprintf-posix.m4
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@@ -1,10 +1,22 @@
# dprintf-posix.m4 serial 5
# dprintf-posix.m4 serial 6
dnl Copyright (C) 2007-2023 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_DPRINTF_POSIX],
[
AC_REQUIRE([gl_FUNC_DPRINTF_IS_POSIX])
if test $gl_cv_func_dprintf_posix = no; then
gl_PREREQ_VASNPRINTF_WITH_POSIX_EXTRAS
gl_REPLACE_VASNPRINTF
gl_REPLACE_DPRINTF
fi
])
dnl Test whether dprintf exists and is POSIX compliant.
dnl Result is gl_cv_func_dprintf_posix.
AC_DEFUN([gl_FUNC_DPRINTF_IS_POSIX],
[
AC_REQUIRE([gl_PRINTF_SIZES_C99])
AC_REQUIRE([gl_PRINTF_LONG_DOUBLE])
@@ -93,21 +105,4 @@ AC_DEFUN([gl_FUNC_DPRINTF_POSIX],
;;
esac
fi
if test $gl_cv_func_dprintf_posix = no; then
gl_PREREQ_VASNPRINTF_LONG_DOUBLE
gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE
gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE
gl_PREREQ_VASNPRINTF_DIRECTIVE_A
gl_PREREQ_VASNPRINTF_DIRECTIVE_B
gl_PREREQ_VASNPRINTF_DIRECTIVE_F
gl_PREREQ_VASNPRINTF_DIRECTIVE_LS
gl_PREREQ_VASNPRINTF_DIRECTIVE_LC
gl_PREREQ_VASNPRINTF_FLAG_GROUPING
gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST
gl_PREREQ_VASNPRINTF_FLAG_ZERO
gl_PREREQ_VASNPRINTF_PRECISION
gl_PREREQ_VASNPRINTF_ENOMEM
gl_REPLACE_VASNPRINTF
gl_REPLACE_DPRINTF
fi
])

29
modules/dprintf-gnu Normal file
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@@ -0,0 +1,29 @@
Description:
POSIX and GNU compatible dprintf() function: print formatted output to a file
descriptor
Comment:
This module should not be used as a dependency from a test module,
otherwise when this module occurs as a tests-related module, it will
have side effects on the compilation of the 'vasnprintf' module, if
that module occurs among the main modules in lib/.
Files:
m4/dprintf-gnu.m4
Depends-on:
dprintf-posix
configure.ac:
gl_FUNC_DPRINTF_GNU
Makefile.am:
Include:
<stdio.h>
License:
LGPL
Maintainer:
all