| /* Printing operations with very long integers. |
| Copyright (C) 2012-2017 Free Software Foundation, Inc. |
| Contributed by Kenneth Zadeck <zadeck@naturalbridge.com> |
| |
| This file is part of GCC. |
| |
| GCC 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. |
| |
| GCC 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 GCC; see the file COPYING3. If not see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include "config.h" |
| #include "system.h" |
| #include "coretypes.h" |
| #include "wide-int-print.h" |
| |
| /* |
| * public printing routines. |
| */ |
| |
| #define BLOCKS_NEEDED(PREC) \ |
| (((PREC) + HOST_BITS_PER_WIDE_INT - 1) / HOST_BITS_PER_WIDE_INT) |
| |
| void |
| print_dec (const wide_int_ref &wi, char *buf, signop sgn) |
| { |
| if (sgn == SIGNED) |
| print_decs (wi, buf); |
| else |
| print_decu (wi, buf); |
| } |
| |
| void |
| print_dec (const wide_int_ref &wi, FILE *file, signop sgn) |
| { |
| if (sgn == SIGNED) |
| print_decs (wi, file); |
| else |
| print_decu (wi, file); |
| } |
| |
| |
| /* Try to print the signed self in decimal to BUF if the number fits |
| in a HWI. Other print in hex. */ |
| |
| void |
| print_decs (const wide_int_ref &wi, char *buf) |
| { |
| if ((wi.get_precision () <= HOST_BITS_PER_WIDE_INT) |
| || (wi.get_len () == 1)) |
| { |
| if (wi::neg_p (wi)) |
| sprintf (buf, "-" HOST_WIDE_INT_PRINT_UNSIGNED, |
| -(unsigned HOST_WIDE_INT) wi.to_shwi ()); |
| else |
| sprintf (buf, HOST_WIDE_INT_PRINT_DEC, wi.to_shwi ()); |
| } |
| else |
| print_hex (wi, buf); |
| } |
| |
| /* Try to print the signed self in decimal to FILE if the number fits |
| in a HWI. Other print in hex. */ |
| |
| void |
| print_decs (const wide_int_ref &wi, FILE *file) |
| { |
| char buf[WIDE_INT_PRINT_BUFFER_SIZE]; |
| print_decs (wi, buf); |
| fputs (buf, file); |
| } |
| |
| /* Try to print the unsigned self in decimal to BUF if the number fits |
| in a HWI. Other print in hex. */ |
| |
| void |
| print_decu (const wide_int_ref &wi, char *buf) |
| { |
| if ((wi.get_precision () <= HOST_BITS_PER_WIDE_INT) |
| || (wi.get_len () == 1 && !wi::neg_p (wi))) |
| sprintf (buf, HOST_WIDE_INT_PRINT_UNSIGNED, wi.to_uhwi ()); |
| else |
| print_hex (wi, buf); |
| } |
| |
| /* Try to print the signed self in decimal to FILE if the number fits |
| in a HWI. Other print in hex. */ |
| |
| void |
| print_decu (const wide_int_ref &wi, FILE *file) |
| { |
| char buf[WIDE_INT_PRINT_BUFFER_SIZE]; |
| print_decu (wi, buf); |
| fputs (buf, file); |
| } |
| |
| void |
| print_hex (const wide_int_ref &wi, char *buf) |
| { |
| int i = wi.get_len (); |
| |
| if (wi == 0) |
| buf += sprintf (buf, "0x0"); |
| else |
| { |
| if (wi::neg_p (wi)) |
| { |
| int j; |
| /* If the number is negative, we may need to pad value with |
| 0xFFF... because the leading elements may be missing and |
| we do not print a '-' with hex. */ |
| buf += sprintf (buf, "0x"); |
| for (j = BLOCKS_NEEDED (wi.get_precision ()); j > i; j--) |
| buf += sprintf (buf, HOST_WIDE_INT_PRINT_PADDED_HEX, HOST_WIDE_INT_M1); |
| |
| } |
| else |
| buf += sprintf (buf, "0x" HOST_WIDE_INT_PRINT_HEX_PURE, wi.elt (--i)); |
| |
| while (--i >= 0) |
| buf += sprintf (buf, HOST_WIDE_INT_PRINT_PADDED_HEX, wi.elt (i)); |
| } |
| } |
| |
| /* Print one big hex number to FILE. Note that some assemblers may not |
| accept this for large modes. */ |
| void |
| print_hex (const wide_int_ref &wi, FILE *file) |
| { |
| char buf[WIDE_INT_PRINT_BUFFER_SIZE]; |
| print_hex (wi, buf); |
| fputs (buf, file); |
| } |
| |