11 Dec
2013
11 Dec
'13
9:45 a.m.
Hello,
be aware that return 0 means exit.
Then I guess the grammar for switch is like:
switch(expression) and the expression is evaluated internally. The $rc
is intended to give the last returned value. Expressions are evaluated
different than people would expect (e.g., based on other programming
languages), like:
- negative values are considered FALSE
- positive values are considered TRUE
You can look at the code, starting with action.c for more details on it.
Cheers,
Daniel
On 09/12/13 00:04, Seudin Kasumovic wrote:
Hi,
Let route[FOO]{...} returns -1, 0, or 1 value.
Next example never print message in case -1:
switch (route(FOO)) {
case -1:
xlog("L_INFO", "FOO = -1\n");
break;
case 0:
xlog("L_INFO", "FOO = zero\n");
break;
case 1:
xlog("L_INFO", "FOO = +1\n");
break;
}
Result from route(FOO) less then to zero converted to 0, so never get
label -1,
but next example works properly (when use $rc):
route(FOO);
switch ($rc) {
case -1:
xlog("L_INFO", "FOO = -1\n");
break;
case 0:
xlog("L_INFO", "FOO = zero\n");
break;
case 1:
xlog("L_INFO", "FOO = +1\n");
break;
}
Is this bug, or regular behavior ?
Regards,
Seudin
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