Hello
Is there anybody who made has some experiences with ellipsis?
I wrote the following code:
____
void add_vals(string first_property_name, ...) {
var l = va_list();
print("\n1:\t%s-%s\n\t%s-%s\n\n",first_property_name,
l.arg<string>(), l.arg<string>(), l.arg<string>());
add_vals_valist(first_property_name, l);
}
void add_vals_valist(string first_property_name, ...) {
var l = va_list();
print("\n2:\t%s-%s\n\t%s-%s\n\n", first_property_name,
l.arg<string>(), l.arg<string>(), l.arg<string>());
}
static int main() {
add_vals(
"first", "first_val",
"second", "second_val",
"3rd", "3rd_val",
null
);
return 0;
}
____
It leads to the following output:
$./ellipsis_forwarding
1: first-second_val
second-first_val
[Invalid UTF-8]
2: first-second
(null)-\xea\x87\x04\x08\xe2\x87\x04\x08
So, I have two problems:
- First, I do not understand why the order of the values changed.
- Second, I cannot see why the forwarding of the va_args does not work.
Can anybody give me a hint?
Regards
Jörn
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