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-rw-r--r--lib/erl_interface/src/decode/decode_double.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/lib/erl_interface/src/decode/decode_double.c b/lib/erl_interface/src/decode/decode_double.c
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+++ b/lib/erl_interface/src/decode/decode_double.c
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+/*
+ * %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 "eidef.h"
+#include "eiext.h"
+#include "putget.h"
+
+
+int ei_decode_double(const char *buf, int *index, double *p)
+{
+ const char *s = buf + *index;
+ const char *s0 = s;
+ double f;
+
+ if (get8(s) != ERL_FLOAT_EXT) return -1;
+
+ if (sscanf(s, "%lf", &f) != 1) return -1;
+
+ s += 31;
+ if (p) *p = f;
+ *index += s-s0;
+ return 0;
+}