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+/* Copyright (C) 1991, 1992, 1993, 1995 Free Software Foundation, Inc.
+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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#ifndef _PRINTF_H
+
+#define _PRINTF_H 1
+#include <features.h>
+
+__BEGIN_DECLS
+
+#define __need_FILE
+#include <stdio.h>
+#define __need_size_t
+#include <stddef.h>
+
+
+struct printf_info
+{
+ int prec; /* Precision. */
+ int width; /* Width. */
+ unsigned char spec; /* Format letter. */
+ unsigned int is_long_double:1;/* L flag. */
+ unsigned int is_short:1; /* h flag. */
+ unsigned int is_long:1; /* l flag. */
+ unsigned int alt:1; /* # flag. */
+ unsigned int space:1; /* Space flag. */
+ unsigned int left:1; /* - flag. */
+ unsigned int showsign:1; /* + flag. */
+ unsigned int group:1; /* ' flag. */
+ char pad; /* Padding character. */
+};
+
+
+/* Type of a printf specifier-handler function.
+ STREAM is the FILE on which to write output.
+ INFO gives information about the format specification.
+ ARGS is a vector of pointers to the argument data;
+ the number of pointers will be the number returned
+ by the associated arginfo function for the same INFO.
+
+ The function should return the number of characters written,
+ or -1 for errors. */
+
+typedef int printf_function __P ((FILE *__stream,
+ __const struct printf_info *__info,
+ __const void **__const __args));
+
+/* Type of a printf specifier-arginfo function.
+ INFO gives information about the format specification.
+ N, ARGTYPES, and return value are as for printf_parse_format. */
+
+typedef int printf_arginfo_function __P ((__const struct printf_info * __info,
+ size_t __n,
+ int *__argtypes));
+
+
+/* Register FUNC to be called to format SPEC specifiers; ARGINFO must be
+ specified to determine how many arguments a SPEC conversion requires and
+ what their types are, even if your program never calls
+ `parse_printf_format'. */
+
+extern int register_printf_function __P ((int __spec, printf_function __func,
+ printf_arginfo_function __arginfo));
+
+
+/* Parse FMT, and fill in N elements of ARGTYPES with the
+ types needed for the conversions FMT specifies. Returns
+ the number of arguments required by FMT.
+
+ The ARGINFO function registered with a user-defined format is passed a
+ `struct printf_info' describing the format spec being parsed. A width
+ or precision of INT_MIN means a `*' was used to indicate that the
+ width/precision will come from an arg. The function should fill in the
+ array it is passed with the types of the arguments it wants, and return
+ the number of arguments it wants. */
+
+extern size_t parse_printf_format __P ((__const char *__fmt,
+ size_t __n,
+ int *__argtypes));
+
+
+/* Codes returned by `parse_printf_format' for basic types.
+
+ These values cover all the standard format specifications.
+ Users can add new values after PA_LAST for their own types. */
+
+enum
+{ /* C type: */
+ PA_INT, /* int */
+ PA_CHAR, /* int, cast to char */
+ PA_STRING, /* const char *, a '\0'-terminated string */
+ PA_POINTER, /* void * */
+ PA_FLOAT, /* float */
+ PA_DOUBLE, /* double */
+ PA_LAST
+};
+
+/* Flag bits that can be set in a type returned by `parse_printf_format'. */
+#define PA_FLAG_MASK 0xff00
+#define PA_FLAG_LONG_LONG (1 << 8)
+#define PA_FLAG_LONG_DOUBLE PA_FLAG_LONG_LONG
+#define PA_FLAG_LONG (1 << 9)
+#define PA_FLAG_SHORT (1 << 10)
+#define PA_FLAG_PTR (1 << 11)
+
+
+__END_DECLS
+
+#endif /* printf.h */