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+/* Copyright (C) 1991-1993,1995-1999,2000,2001 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 Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* March 11, 2001 Manuel Novoa III
+ *
+ * Modified as appropriate for my new stdio lib.
+ */
+
+#ifndef _PRINTF_H
+
+#define _PRINTF_H 1
+#include <features.h>
+
+__BEGIN_DECLS
+
+#define __need_FILE
+#include <stdio.h>
+#define __need_size_t
+#define __need_wchar_t
+#include <stddef.h>
+
+/* WARNING -- This is definitely nonportable... but it seems to work
+ * with gcc, which is currently the only "supported" compiler.
+ * The library code uses bitmasks for space-efficiency (you can't
+ * set/test multiple bitfields in one operation). Unfortunatly, we
+ * need to support bitfields since that's what glibc uses. So, we take
+ * advantage of how gcc lays out bitfields to create an appropriate
+ * mapping. By defining __PRINTF_INFO_NO_BITFIELD we access the
+ * bitfields using bitmasks in a single flag variable.
+ *
+ * WARNING -- This may very well fail if built with -fpack-struct!!!
+ *
+ * TODO -- Add a validation test.
+ * TODO -- Add an option to build in a shim translation function if
+ * the bitfield<->bitmask mapping fails.
+ */
+/* #define __PRINTF_INFO_NO_BITFIELD */
+#include <endian.h>
+
+struct printf_info
+{
+ int prec; /* Precision. */
+ int width; /* Width. */
+#ifdef __STDIO_WIDE /* TODO: temporary fix for uClibc */
+ wchar_t spec; /* Format letter. */
+#else
+ int spec;
+#endif
+#ifndef __PRINTF_INFO_NO_BITFIELD
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+ unsigned int space:1; /* Space flag. */
+ unsigned int showsign:1; /* + flag. */
+ unsigned int extra:1; /* For special use. */
+ unsigned int left:1; /* - flag. */
+ unsigned int alt:1; /* # flag. */
+ unsigned int group:1; /* ' flag. */
+ unsigned int i18n:1; /* I flag. */
+ unsigned int wide:1; /* Nonzero for wide character streams. */
+ unsigned int is_char:1; /* hh flag. */
+ unsigned int is_short:1; /* h flag. */
+ unsigned int is_long:1; /* l flag. */
+ unsigned int is_long_double:1;/* L flag. */
+
+#elif __BYTE_ORDER == __BIG_ENDIAN
+
+ unsigned int __padding:20;/* non-gnu -- total of 32 bits on 32bit arch */
+ unsigned int is_long_double:1;/* L flag. */
+ unsigned int is_long:1; /* l flag. */
+ unsigned int is_short:1; /* h flag. */
+ unsigned int is_char:1; /* hh flag. */
+ unsigned int wide:1; /* Nonzero for wide character streams. */
+ unsigned int i18n:1; /* I flag. */
+ unsigned int group:1; /* ' flag. */
+ unsigned int alt:1; /* # flag. */
+ unsigned int left:1; /* - flag. */
+ unsigned int extra:1; /* For special use. */
+ unsigned int showsign:1; /* + flag. */
+ unsigned int space:1; /* Space flag. */
+
+#else
+#error unsupported byte order!
+#endif
+
+#define PRINT_INFO_FLAG_VAL(INFO_PTR,BITFIELD) (INFO_PTR)->BITFIELD
+#define PRINT_INFO_SET_FLAG(INFO_PTR,BITFIELD) (INFO_PTR)->BITFIELD = 1
+#define PRINT_INFO_CLR_FLAG(INFO_PTR,BITFIELD) (INFO_PTR)->BITFIELD = 0
+#define PRINT_INFO_SET_extra(INFO_PTR,VAL) (INFO_PTR)->extra = (VAL)
+
+#else /* __PRINTF_INFO_NO_BITFIELD */
+
+ unsigned int _flags; /* non-gnu */
+#define __PRINT_INFO_FLAG_space (1<<0)
+#define __PRINT_INFO_FLAG_showsign (1<<1)
+#define __PRINT_INFO_FLAG_extra (1<<2)
+#define __PRINT_INFO_FLAG_left (1<<3)
+#define __PRINT_INFO_FLAG_alt (1<<4)
+#define __PRINT_INFO_FLAG_group (1<<5)
+#define __PRINT_INFO_FLAG_i18n (1<<6)
+#define __PRINT_INFO_FLAG_wide (1<<7)
+
+#define __PRINT_INFO_FLAG_is_char (1<<8)
+#define __PRINT_INFO_FLAG_is_short (1<<9)
+#define __PRINT_INFO_FLAG_is_long (1<<10)
+#define __PRINT_INFO_FLAG_is_long_double (1<<11)
+
+#if defined(__STDC__) && __STDC__
+#define PRINT_INFO_FLAG_VAL(INFO_PTR,BITFIELD) \
+ ((INFO_PTR)->_flags & __PRINT_INFO_FLAG_##BITFIELD)
+#define PRINT_INFO_SET_FLAG(INFO_PTR,BITFIELD) \
+ ((INFO_PTR)->_flags |= __PRINT_INFO_FLAG_##BITFIELD)
+#define PRINT_INFO_CLR_FLAG(INFO_PTR,BITFIELD) \
+ ((INFO_PTR)->_flags &= ~__PRINT_INFO_FLAG_##BITFIELD)
+#else
+#define PRINT_INFO_FLAG_VAL(INFO_PTR,BITFIELD) \
+ ((INFO_PTR)->_flags & __PRINT_INFO_FLAG_/**/BITFIELD)
+#define PRINT_INFO_SET_FLAG(INFO_PTR,BITFIELD) \
+ ((INFO_PTR)->_flags |= __PRINT_INFO_FLAG_/**/BITFIELD)
+#define PRINT_INFO_CLR_FLAG(INFO_PTR,BITFIELD) \
+ ((INFO_PTR)->_flags &= ~__PRINT_INFO_FLAG_/**/BITFIELD)
+#endif
+#define PRINT_INFO_SET_extra(INFO_PTR,VAL) \
+ ((INFO_PTR)->_flags |= (((INFO_PTR)->_flags & ~1) | ((VAL) & 1)))
+#endif /* __PRINTF_INFO_NO_BITFIELD */
+#ifdef __STDIO_WIDE /* TODO: temporary fix for uClibc */
+ wchar_t pad; /* Padding character. */
+#else
+ int pad;
+#endif
+};
+
+
+/* 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 (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 parse_printf_format. */
+
+typedef int printf_arginfo_function (__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. */
+
+extern int register_printf_function (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 (__const char *__restrict __fmt, size_t __n,
+ int *__restrict __argtypes) __THROW;
+
+
+/* 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. */
+
+/* WARNING -- The above is not entirely true, even for glibc.
+ * As far as the library code is concerned, such args are treated
+ * as 'your type' pointers if qualified by PA_FLAG_PTR. If they
+ * aren't qualified as pointers, I _think_ glibc just ignores them
+ * and carries on. I think it should be treated as an error. */
+
+enum
+{ /* C type: */
+ PA_INT, /* int */
+ PA_CHAR, /* int, cast to char */
+ PA_WCHAR, /* wide char */
+ PA_STRING, /* const char *, a '\0'-terminated string */
+ PA_WSTRING, /* const wchar_t *, wide character string */
+ PA_POINTER, /* void * */
+ PA_FLOAT, /* float */
+ PA_DOUBLE, /* double */
+ __PA_NOARG, /* non-glibc -- signals non-arg width or prec */
+ PA_LAST
+};
+
+/* Flag bits that can be set in a type returned by `parse_printf_format'. */
+/* WARNING -- These differ in value from what glibc uses. */
+#define PA_FLAG_MASK (0xff00)
+#define __PA_FLAG_CHAR (0x0100) /* non-gnu -- to deal with hh */
+#define PA_FLAG_SHORT (0x0200)
+#define PA_FLAG_LONG (0x0400)
+#define PA_FLAG_LONG_LONG (0x0800)
+#define PA_FLAG_LONG_DOUBLE PA_FLAG_LONG_LONG
+#define PA_FLAG_PTR (0x1000) /* TODO -- make dynamic??? */
+
+#define __PA_INTMASK (0x0f00) /* non-gnu -- all int flags */
+
+/* Function which can be registered as `printf'-handlers. */
+
+/* Print floating point value using using abbreviations for the orders
+ of magnitude used for numbers ('k' for kilo, 'm' for mega etc). If
+ the format specifier is a uppercase character powers of 1000 are
+ used. Otherwise powers of 1024. */
+extern int printf_size (FILE *__restrict __fp,
+ __const struct printf_info *__info,
+ __const void *__const *__restrict __args) __THROW;
+
+/* This is the appropriate argument information function for `printf_size'. */
+extern int printf_size_info (__const struct printf_info *__restrict
+ __info, size_t __n, int *__restrict __argtypes)
+ __THROW;
+
+
+__END_DECLS
+
+#endif /* printf.h */