1 /* Printing operations with very long integers.
2 Copyright (C) 2012-2015 Free Software Foundation, Inc.
3 Contributed by Kenneth Zadeck <zadeck@naturalbridge.com>
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by the
9 Free Software Foundation; either version 3, or (at your option) any
12 GCC is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
23 #include "coretypes.h"
27 #include "wide-int-print.h"
30 * public printing routines.
33 #define BLOCKS_NEEDED(PREC) \
34 (((PREC) + HOST_BITS_PER_WIDE_INT - 1) / HOST_BITS_PER_WIDE_INT)
37 print_dec (const wide_int_ref &wi, char *buf, signop sgn)
46 print_dec (const wide_int_ref &wi, FILE *file, signop sgn)
49 print_decs (wi, file);
51 print_decu (wi, file);
55 /* Try to print the signed self in decimal to BUF if the number fits
56 in a HWI. Other print in hex. */
59 print_decs (const wide_int_ref &wi, char *buf)
61 if ((wi.get_precision () <= HOST_BITS_PER_WIDE_INT)
62 || (wi.get_len () == 1))
65 sprintf (buf, "-" HOST_WIDE_INT_PRINT_UNSIGNED,
66 -(unsigned HOST_WIDE_INT) wi.to_shwi ());
68 sprintf (buf, HOST_WIDE_INT_PRINT_DEC, wi.to_shwi ());
74 /* Try to print the signed self in decimal to FILE if the number fits
75 in a HWI. Other print in hex. */
78 print_decs (const wide_int_ref &wi, FILE *file)
80 char buf[WIDE_INT_PRINT_BUFFER_SIZE];
85 /* Try to print the unsigned self in decimal to BUF if the number fits
86 in a HWI. Other print in hex. */
89 print_decu (const wide_int_ref &wi, char *buf)
91 if ((wi.get_precision () <= HOST_BITS_PER_WIDE_INT)
92 || (wi.get_len () == 1 && !wi::neg_p (wi)))
93 sprintf (buf, HOST_WIDE_INT_PRINT_UNSIGNED, wi.to_uhwi ());
98 /* Try to print the signed self in decimal to FILE if the number fits
99 in a HWI. Other print in hex. */
102 print_decu (const wide_int_ref &wi, FILE *file)
104 char buf[WIDE_INT_PRINT_BUFFER_SIZE];
105 print_decu (wi, buf);
110 print_hex (const wide_int_ref &wi, char *buf)
112 int i = wi.get_len ();
115 buf += sprintf (buf, "0x0");
121 /* If the number is negative, we may need to pad value with
122 0xFFF... because the leading elements may be missing and
123 we do not print a '-' with hex. */
124 buf += sprintf (buf, "0x");
125 for (j = BLOCKS_NEEDED (wi.get_precision ()); j > i; j--)
126 buf += sprintf (buf, HOST_WIDE_INT_PRINT_PADDED_HEX, (HOST_WIDE_INT) -1);
130 buf += sprintf (buf, "0x"HOST_WIDE_INT_PRINT_HEX_PURE, wi.elt (--i));
133 buf += sprintf (buf, HOST_WIDE_INT_PRINT_PADDED_HEX, wi.elt (i));
137 /* Print one big hex number to FILE. Note that some assemblers may not
138 accept this for large modes. */
140 print_hex (const wide_int_ref &wi, FILE *file)
142 char buf[WIDE_INT_PRINT_BUFFER_SIZE];