gstreamer/gst/printf/README
Tim-Philipp Müller 8fc876f09f printf: add our own printf implementation for debug logging
We will add support for our own printf modifiers, so we can
get nice debug log output on all operating systems irrespective
of the specific libc version used.

https://bugzilla.gnome.org/show_bug.cgi?id=613081
2013-04-12 23:05:56 +01:00

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The files
asnprintf.c
printf-args.c
printf-args.h
printf-parse.c
printf-parse.h
vasnprintf.c
vasnprintf.h
are taken from the vasnprintf module of the GNUlib package, which can
be found at:
http://www.gnu.org/software/gnulib/
All files have been modified to include g-gnulib.h.
vasnprintf.c has also been modified to include support for long long
printing if the system printf doesn't. This code is protected by
#ifndef HAVE_LONG_LONG_FORMAT.
Code has been added to printf-args.[ch], printf-parse.c and vasnprintf.c
to support printing of __int64 values with the I64 format modifier. This
is protected by #ifdef HAVE_INT64_AND_I64.
The files
printf.h
printf.c
g-gnulib.h
have been written by me. printf.[hc] contain implementations of the
remaining functions in the printf family based on vasnprintf.
g-gnulib.h is included by all source files in order to move all
exported functions to the _g_gnulib namespace, replace malloc by
g_malloc and make sure that snprintf is only used if it implements
C99 return value semantics.
Matthias Clasen
November 1, 2003
-----
GStreamer modifications
This was imported from GLib's gnulib subdirectory.
g-gnulib.h and _g_gnulib namespace has been changed to gst-printf.h and
__gst_printf namespace for GStreamer. Also #define HAVE_SNPRINTF 0 has
been changed to #undef HAVE_SNPRINTF, and HAVE_ALLOCA has been changed to
GLIB_HAVE_ALLOCA_H
We will also add support for our custom printf format specifiers.
Files have also been indented with gst-indent, so this is basically a
permanent fork and any patches will have to be merged manually.
March 30, 2013.