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/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 1998-2010. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
* compliance with the License. You should have received a copy of the
* Erlang Public License along with this software. If not, it can be
* retrieved online at http://www.erlang.org/.
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* %CopyrightEnd%
*/
#include <stdio.h>
#include <string.h>
#include "eidef.h"
#include "eiext.h"
#include "putget.h"
#if defined(HAVE_ISFINITE)
#include <math.h>
#endif
int ei_encode_double(char *buf, int *index, double p)
{
char *s = buf + *index;
char *s0 = s;
/* Erlang does not handle Inf and NaN, so we return an error rather
* than letting the Erlang VM complain about a bad external
* term. */
#if defined(HAVE_ISFINITE)
if(!isfinite(p)) {
return -1;
}
#endif
if (!buf)
s += 9;
else {
/* IEEE 754 format */
put8(s, NEW_FLOAT_EXT);
put64be(s, ((FloatExt*)&p)->val);
}
*index += s-s0;
return 0;
}
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