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Include a printf implementation supporting C99 snprintf and SUS

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positional parameters:  (#79488)

	* glib/gstrfuncs.c:
	* glib/gspawn-win32.c:
	* glib/gscanner.c:
	* glib/gconvert.c:
	* glib/gbacktrace.c: Use _g_printf wrappers.

	* glib/gutils.c (g_vsnprintf): Simplify, since we can assume C99
	snprintf semantics now.

	* glib/gmessages.c (printf_string_upper_bound): No longer needed,
	since we can assume C99 snprintf semantics now.
	(g_logv): Simplify.

	* acinclude.m4 (AC_FUNC_PRINTF_UNIX98): New macro to check wether
	printf supports SUS positional parameters.

	* configure.in: New option --enable-included-printf to force
	compilation of trio; otherwise trio is compiled if the system
	printf misses either C99 snprintf semantics of SUS positional
	parameters.

	* glib/Makefile.am (SUBDIRS): Conditionally compile trio.
	(libglib_2_0_la_SOURCES): Add gprintf.c and gprintfint.h.
	(glibsubinclude_HEADERS): Add gprintf.h.

	* glib/gprintfint.h: New private wrapping either system printf
	or trio printf variants in _g_printf wrappers for use inside glib.

	* glib/gprintf.h: New public header declaring g_printf variants.
	* glib/gprintf.c: Corresponding implementations.

	* glib/trio/*: New directory, containing the trio-1.9 sources.

	* glib/tmpl/string_utils.sgml: Add note on including gprintf.h,
	move some docs inline.

	* glib/glib-sections.txt: Add g_printf, g_vprintf, g_fprintf,
	g_vfprintf, g_sprintf, g_vsprintf.
This commit is contained in:
Matthias Clasen
2002-11-21 00:35:15 +00:00
parent dc645ce354
commit bc54ea6edf
33 changed files with 11455 additions and 561 deletions
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34
acinclude.m4
View File

@@ -327,3 +327,37 @@ if test $ac_cv_func_vsnprintf_c99 = yes; then
fi
])# AC_FUNC_VSNPRINTF_C99
dnl @synopsis AC_FUNC_PRINTF_UNIX98
dnl
dnl Check whether the printf() family supports Unix98 %n$ positional parameters
dnl
AC_DEFUN([AC_FUNC_PRINTF_UNIX98],
[AC_CACHE_CHECK(whether printf supports positional parameters,
ac_cv_func_printf_unix98,
[AC_TRY_RUN(
[#include <stdio.h>
int
main (void)
{
char buffer[128];
sprintf (buffer, "%2\$d %3\$d %1\$d", 1, 2, 3);
if (strcmp ("2 3 1", buffer) == 0)
exit (0);
exit (1);
}], ac_cv_func_printf_unix98=yes, ac_cv_func_printf_unix98=no, ac_cv_func_printf_unix98=no)])
dnl Note that the default is to be pessimistic in the case of cross compilation.
dnl If you know that the target printf() supports positional parameters, you can get around
dnl this by setting ac_func_printf_unix98 to yes, as described in the Autoconf manual.
if test $ac_cv_func_printf_unix98 = yes; then
AC_DEFINE(HAVE_UNIX98_PRINTF, 1,
[Define if your printf function family supports positional parameters
as specified by Unix98.])
fi
])# AC_FUNC_PRINTF_UNIX98