text: /* Decomposed printf argument list.
     Copyright (C) 1999, 2002-2003, 2006-2007, 2011-2020 Free Software
     Foundation, Inc.
  
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 3, or (at your option)
     any later version.
  
     This program 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 General Public License for more details.
  
     You should have received a copy of the GNU 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 */
  