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/*
Copyright (c) 2014 Arduino LLC. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "itoa.h"
#include <string.h>
#ifdef __cplusplus
extern "C" {
#endif
extern char* ltoa( long value, char *string, int radix )
{
char tmp[33];
char *tp = tmp;
long i;
unsigned long v;
int sign;
char *sp;
if ( string == NULL )
{
return 0 ;
}
if (radix > 36 || radix <= 1)
{
return 0 ;
}
sign = (radix == 10 && value < 0);
if (sign)
{
v = -value;
}
else
{
v = (unsigned long)value;
}
while (v || tp == tmp)
{
i = v % radix;
v = v / radix;
if (i < 10)
*tp++ = i+'0';
else
*tp++ = i + 'a' - 10;
}
sp = string;
if (sign)
*sp++ = '-';
while (tp > tmp)
*sp++ = *--tp;
*sp = 0;
return string;
}
extern char* ultoa( unsigned long value, char *string, int radix )
{
char tmp[33];
char *tp = tmp;
long i;
unsigned long v = value;
char *sp;
if ( string == NULL )
{
return 0;
}
if (radix > 36 || radix <= 1)
{
return 0;
}
while (v || tp == tmp)
{
i = v % radix;
v = v / radix;
if (i < 10)
*tp++ = i+'0';
else
*tp++ = i + 'a' - 10;
}
sp = string;
while (tp > tmp)
*sp++ = *--tp;
*sp = 0;
return string;
}
#ifdef __cplusplus
} // extern "C"
#endif
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