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159 lines
3.9 KiB
C
159 lines
3.9 KiB
C
/* Decomposed printf argument list.
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Copyright (C) 1999, 2002-2003, 2006-2007, 2011, 2015-2016 Free Software
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Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef _PRINTF_ARGS_H
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#define _PRINTF_ARGS_H
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/* This file can be parametrized with the following macros:
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ENABLE_UNISTDIO Set to 1 to enable the unistdio extensions.
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PRINTF_FETCHARGS Name of the function to be declared.
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STATIC Set to 'static' to declare the function static. */
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/* Default parameters. */
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#ifndef PRINTF_FETCHARGS
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# define PRINTF_FETCHARGS printf_fetchargs
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#endif
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/* Get size_t. */
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#include <stddef.h>
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/* Get wchar_t. */
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#if HAVE_WCHAR_T
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# include <stddef.h>
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#endif
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/* Get wint_t. */
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#if HAVE_WINT_T
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# include <wchar.h>
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#endif
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/* Get va_list. */
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#include <stdarg.h>
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/* Argument types */
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typedef enum
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{
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TYPE_NONE,
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TYPE_SCHAR,
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TYPE_UCHAR,
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TYPE_SHORT,
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TYPE_USHORT,
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TYPE_INT,
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TYPE_UINT,
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TYPE_LONGINT,
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TYPE_ULONGINT,
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#if HAVE_LONG_LONG_INT
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TYPE_LONGLONGINT,
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TYPE_ULONGLONGINT,
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#endif
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TYPE_DOUBLE,
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TYPE_LONGDOUBLE,
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TYPE_CHAR,
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#if HAVE_WINT_T
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TYPE_WIDE_CHAR,
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#endif
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TYPE_STRING,
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#if HAVE_WCHAR_T
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TYPE_WIDE_STRING,
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#endif
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TYPE_POINTER,
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TYPE_COUNT_SCHAR_POINTER,
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TYPE_COUNT_SHORT_POINTER,
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TYPE_COUNT_INT_POINTER,
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TYPE_COUNT_LONGINT_POINTER
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#if HAVE_LONG_LONG_INT
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, TYPE_COUNT_LONGLONGINT_POINTER
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#endif
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#if ENABLE_UNISTDIO
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/* The unistdio extensions. */
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, TYPE_U8_STRING
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, TYPE_U16_STRING
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, TYPE_U32_STRING
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#endif
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} arg_type;
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/* Polymorphic argument */
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typedef struct
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{
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arg_type type;
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union
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{
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signed char a_schar;
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unsigned char a_uchar;
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short a_short;
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unsigned short a_ushort;
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int a_int;
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unsigned int a_uint;
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long int a_longint;
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unsigned long int a_ulongint;
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#if HAVE_LONG_LONG_INT
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long long int a_longlongint;
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unsigned long long int a_ulonglongint;
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#endif
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float a_float;
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double a_double;
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long double a_longdouble;
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int a_char;
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#if HAVE_WINT_T
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wint_t a_wide_char;
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#endif
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const char* a_string;
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#if HAVE_WCHAR_T
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const wchar_t* a_wide_string;
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#endif
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void* a_pointer;
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signed char * a_count_schar_pointer;
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short * a_count_short_pointer;
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int * a_count_int_pointer;
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long int * a_count_longint_pointer;
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#if HAVE_LONG_LONG_INT
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long long int * a_count_longlongint_pointer;
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#endif
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#if ENABLE_UNISTDIO
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/* The unistdio extensions. */
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const uint8_t * a_u8_string;
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const uint16_t * a_u16_string;
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const uint32_t * a_u32_string;
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#endif
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}
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a;
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}
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argument;
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/* Number of directly allocated arguments (no malloc() needed). */
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#define N_DIRECT_ALLOC_ARGUMENTS 7
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typedef struct
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{
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size_t count;
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argument *arg;
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argument direct_alloc_arg[N_DIRECT_ALLOC_ARGUMENTS];
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}
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arguments;
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/* Fetch the arguments, putting them into a. */
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#ifdef STATIC
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STATIC
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#else
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extern
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#endif
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int PRINTF_FETCHARGS (va_list args, arguments *a);
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#endif /* _PRINTF_ARGS_H */
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