| /* Copyright (C) 1991, 92, 93, 95, 96, 97 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 Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #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> |
| |
| |
| struct printf_info |
| { |
| int prec; /* Precision. */ |
| int width; /* Width. */ |
| wchar_t 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. */ |
| unsigned int extra:1; /* For special use. */ |
| wchar_t 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. */ |
| |
| 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_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_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) |
| |
| |
| |
| /* 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 __P ((FILE *__fp, __const struct printf_info *__info, |
| __const void *__const *args)); |
| |
| /* This is the appropriate argument information function for `printf_size'. */ |
| extern int printf_size_info __P ((__const struct printf_info *__info, |
| size_t __n, int *__argtypes)); |
| |
| |
| __END_DECLS |
| |
| #endif /* printf.h */ |