gcc/wide-int-print.h

   1 /* Print wide integers.
   2    Copyright (C) 2013-2025 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it
   7 under the terms of the GNU General Public License as published by the
   8 Free Software Foundation; either version 3, or (at your option) any
   9 later version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT
  12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef WIDE_INT_PRINT_H
  21 #define WIDE_INT_PRINT_H
  22
  23 #include <stdio.h>
  24
  25 #define WIDE_INT_PRINT_BUFFER_SIZE (WIDE_INT_MAX_INL_PRECISION / 4 + 4)
  26
  27 /* Printing functions.  */
  28
  29 extern void print_dec (const wide_int_ref &wi, char *buf, signop sgn);
  30 extern void print_dec (const wide_int_ref &wi, FILE *file, signop sgn);
  31 extern void print_decs (const wide_int_ref &wi, char *buf);
  32 extern void print_decs (const wide_int_ref &wi, FILE *file);
  33 extern void print_decu (const wide_int_ref &wi, char *buf);
  34 extern void print_decu (const wide_int_ref &wi, FILE *file);
  35 extern void print_hex (const wide_int_ref &wi, char *buf);
  36 extern void print_hex (const wide_int_ref &wi, FILE *file);
  37 extern void pp_wide_int_large (pretty_printer *, const wide_int_ref &, signop);
  38
  39 inline bool
  40 print_dec_buf_size (const wide_int_ref &wi, signop sgn, unsigned int *len)
  41 {
  42   unsigned int l = wi.get_len ();
  43   if ((l != 1 || sgn == UNSIGNED) && wi::neg_p (wi))
  44     l = WIDE_INT_MAX_HWIS (wi.get_precision ());
  45   l = l * HOST_BITS_PER_WIDE_INT / 3 + 3;
  46   *len = l;
  47   return UNLIKELY (l > WIDE_INT_PRINT_BUFFER_SIZE);
  48 }
  49
  50 inline bool
  51 print_decs_buf_size (const wide_int_ref &wi, unsigned int *len)
  52 {
  53   return print_dec_buf_size (wi, SIGNED, len);
  54 }
  55
  56 inline bool
  57 print_decu_buf_size (const wide_int_ref &wi, unsigned int *len)
  58 {
  59   return print_dec_buf_size (wi, UNSIGNED, len);
  60 }
  61
  62 inline bool
  63 print_hex_buf_size (const wide_int_ref &wi, unsigned int *len)
  64 {
  65   unsigned int l;
  66   if (wi::neg_p (wi))
  67     l = WIDE_INT_MAX_HWIS (wi.get_precision ());
  68   else
  69     l = wi.get_len ();
  70   l = l * HOST_BITS_PER_WIDE_INT / 4 + 4;
  71   *len = l;
  72   return UNLIKELY (l > WIDE_INT_PRINT_BUFFER_SIZE);
  73 }
  74
  75 #endif /* WIDE_INT_PRINT_H */