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Diffstat (limited to 'lib/erl_interface/src/encode/encode_double.c')
-rw-r--r-- | lib/erl_interface/src/encode/encode_double.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/lib/erl_interface/src/encode/encode_double.c b/lib/erl_interface/src/encode/encode_double.c new file mode 100644 index 0000000000..53f3d52ba6 --- /dev/null +++ b/lib/erl_interface/src/encode/encode_double.c @@ -0,0 +1,42 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 1998-2009. 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" + +int ei_encode_double(char *buf, int *index, double p) +{ + char *s = buf + *index; + char *s0 = s; + + if (!buf) s ++; + else { + put8(s,ERL_FLOAT_EXT); + memset(s, 0, 31); + sprintf(s, "%.20e", p); + } + s += 31; + + *index += s-s0; + + return 0; +} + |