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/* 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);
}
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