147 lines
3.6 KiB
C++
147 lines
3.6 KiB
C++
/* Printing operations with very long integers.
|
|
Copyright (C) 2012-2013 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 "tm.h"
|
|
#include "hwint.h"
|
|
#include "wide-int.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) -1);
|
|
|
|
}
|
|
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);
|
|
}
|
|
|