/* -*- c -*- */
/*
 * Copyright 2007 Free Software Foundation, Inc.
 *
 * This program 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 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <nonstdio.h>

static const char hex[16] = "0123456789ABCDEF";

// %x
void
puthex4(unsigned long x)
{
  putchar(hex[x & 0xf]);
}

// %02x
void 
puthex8(unsigned long x)
{
  putchar(hex[(x >> 4) & 0xf]);
  putchar(hex[x & 0xf]);
}

// %04x
void 
puthex16(unsigned long x)
{
  puthex8(x >> 8);
  puthex8(x);
}

// %08x
void 
puthex32(unsigned long x)
{
  puthex16(x >> 16);
  puthex16(x);
}

void 
puthex4_nl(unsigned long x)
{
  puthex4(x);
  newline();
}

void 
puthex8_nl(unsigned long x)
{
  puthex8(x);
  newline();
}

void 
puthex16_nl(unsigned long x)
{
  puthex16(x);
  newline();
}

void 
puthex32_nl(unsigned long x)
{
  puthex32(x);
  newline();
}
/*
void reverse(char s[])
{
    int c, i, j;

    for (i = 0, j = strlen(s)-1; i<j; i++, j--) {
        c = s[i];
        s[i] = s[j];
        s[j] = c;
    }
}

int abs(signed long value) {
	return (value >= 0) ? value : 0-value;
}

//we'll keep the puthex functions above because they're way more lightweight. but sometimes you just want to print in decimal, you know?
char *itoa(signed long value, char *result, int base)
{
	// check that the base if valid
	if (base < 2 || base > 16) { *result = 0; return result; }

	char* out = result;
	signed long quotient = value;

	do {
		*out = hex[ abs(quotient % base) ];
		++out;
		quotient /= base;
	} while ( quotient );

	// Only apply negative sign for base 10
	if ( value < 0 && base == 10) *out++ = '-';

	*out = 0;
	reverse( result );

	return result;

}
*/