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Diffstat (limited to 'lib/printf-args.h')
| -rw-r--r-- | lib/printf-args.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/lib/printf-args.h b/lib/printf-args.h new file mode 100644 index 0000000..f303cb1 --- /dev/null +++ b/lib/printf-args.h @@ -0,0 +1,150 @@ +/* Decomposed printf argument list. + Copyright (C) 1999, 2002-2003, 2006-2007, 2011-2023 Free Software + Foundation, Inc. + + This file 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. + + This file 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 this program. If not, see <https://www.gnu.org/licenses/>. */ + +#ifndef _PRINTF_ARGS_H +#define _PRINTF_ARGS_H + +/* This file can be parametrized with the following macros: + ENABLE_UNISTDIO Set to 1 to enable the unistdio extensions. + PRINTF_FETCHARGS Name of the function to be declared. + STATIC Set to 'static' to declare the function static. */ + +/* Default parameters. */ +#ifndef PRINTF_FETCHARGS +# define PRINTF_FETCHARGS printf_fetchargs +#endif + +/* Get size_t. */ +#include <stddef.h> + +/* Get wchar_t. */ +#if HAVE_WCHAR_T +# include <stddef.h> +#endif + +/* Get wint_t. */ +#if HAVE_WINT_T +# include <wchar.h> +#endif + +/* Get va_list. */ +#include <stdarg.h> + + +/* Argument types */ +typedef enum +{ + TYPE_NONE, + TYPE_SCHAR, + TYPE_UCHAR, + TYPE_SHORT, + TYPE_USHORT, + TYPE_INT, + TYPE_UINT, + TYPE_LONGINT, + TYPE_ULONGINT, + TYPE_LONGLONGINT, + TYPE_ULONGLONGINT, + TYPE_DOUBLE, + TYPE_LONGDOUBLE, + TYPE_CHAR, +#if HAVE_WINT_T + TYPE_WIDE_CHAR, +#endif + TYPE_STRING, +#if HAVE_WCHAR_T + TYPE_WIDE_STRING, +#endif + TYPE_POINTER, + TYPE_COUNT_SCHAR_POINTER, + TYPE_COUNT_SHORT_POINTER, + TYPE_COUNT_INT_POINTER, + TYPE_COUNT_LONGINT_POINTER, + TYPE_COUNT_LONGLONGINT_POINTER +#if ENABLE_UNISTDIO + /* The unistdio extensions. */ +, TYPE_U8_STRING +, TYPE_U16_STRING +, TYPE_U32_STRING +#endif +} arg_type; + +/* Polymorphic argument */ +typedef struct +{ + arg_type type; + union + { + signed char a_schar; + unsigned char a_uchar; + short a_short; + unsigned short a_ushort; + int a_int; + unsigned int a_uint; + long int a_longint; + unsigned long int a_ulongint; + long long int a_longlongint; + unsigned long long int a_ulonglongint; + float a_float; + double a_double; + long double a_longdouble; + int a_char; +#if HAVE_WINT_T + wint_t a_wide_char; +#endif + const char* a_string; +#if HAVE_WCHAR_T + const wchar_t* a_wide_string; +#endif + void* a_pointer; + signed char * a_count_schar_pointer; + short * a_count_short_pointer; + int * a_count_int_pointer; + long int * a_count_longint_pointer; + long long int * a_count_longlongint_pointer; +#if ENABLE_UNISTDIO + /* The unistdio extensions. */ + const uint8_t * a_u8_string; + const uint16_t * a_u16_string; + const uint32_t * a_u32_string; +#endif + } + a; +} +argument; + +/* Number of directly allocated arguments (no malloc() needed). */ +#define N_DIRECT_ALLOC_ARGUMENTS 7 + +typedef struct +{ + size_t count; + argument *arg; + argument direct_alloc_arg[N_DIRECT_ALLOC_ARGUMENTS]; +} +arguments; + + +/* Fetch the arguments, putting them into a. */ +#ifdef STATIC +STATIC +#else +extern +#endif +int PRINTF_FETCHARGS (va_list args, arguments *a); + +#endif /* _PRINTF_ARGS_H */ |