On 31.08.2011 23:19, Jonathan Wilkes wrote:
That probably means you're formatting that part of your list
as symbol-atom '1' instead of float-atom '1'.
Thus, the [route] object is outputting symbol-atom '1', which is just a
message where the selector is the symbol-atom '1'. The right inlet of [f]
has a method for messages with the selector 'float', but it doesn't have a
symbol-atom '1' method, so you get the error.
Yes, that gave me a pointer to the problem (for those interested, see below)
In my object I do the following:
t_atom out_data[2]
SETSYMBOL(&out_data[0], gensym(key));
SETFLOAT(&out_data[1], json_object_get_double(val));
outlet_list(data_outlet,&s_list, 2,&out_data[0]);
What am I doing wrong?
CouchDB more or less always quotes the values, so it is a JSON string,
which I now parse with:
case json_type_string:
SETSYMBOL(&out_data[0], gensym(key));
/* Float values might come as string */
const char *string_value = json_object_get_string(val);
float_value = atof(string_value);
if (float_value == 0 && strcmp(string_value, "0") != 0) {
SETSYMBOL(&out_data[1], gensym(string_value));
} else {
SETFLOAT(&out_data[1], float_value);
}
outlet_list(data_outlet, &s_list, 2, &out_data[0]);
break;
Now, it is working as intended. Is this the "standard" way in C to get
possible floats out of strings?
Best regards,
Thomas
--
"Prisons are needed only to provide the illusion that courts and police
are effective. They're a kind of job insurance."
(Leto II. in: Frank Herbert, God Emperor of Dune)
http://www.residuum.org/
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