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- /* Copyright (C) 1991, 1992, 1993 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>
-
- #include <stdarg.h> /* Need va_list. */
-
-
- 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. */
- 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.
- Arguments can be read from ARGS.
- 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,
- va_list * __args));
- 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, if not NULL, is a function used by `parse_printf_format'
- to determine how many arguments a SPEC conversion requires,
- and what their types are. */
- 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 */
-