[sr-dev] [tracker] Task opened: Uninitialized $var returns 0 instead of <null>

[sip-router]

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A new Flyspray task has been opened.  Details are below. 

User who did this - Alex Hermann (axlh) 

Attached to Project - sip-router
Summary - Uninitialized $var returns 0 instead of <null>
Task Type - Bug Report
Category - Core
Status - Assigned
Assigned To - Andrei Pelinescu-Onciul
Operating System - All
Severity - Low
Priority - Normal
Reported Version - Development
Due in Version - Undecided
Due Date - Undecided
Details - There is an annoying difference between an uninitialized $avp and $var. When the value is queried, the $avp returns <null> whereas the $var returns 0. The latter is wrong, as 0 is a meaningful value.

Suggested fix: uninitialized $var should return <null>

Example:
$var(null) = $null;
$avp(null) = $null;
xlog("$$var(null) = $var(null)");
xlog("$$avp(null) = $avp(null)";

Output:
$var(null) = 0
$avp(null) = <null>


More information can be found at the following URL:
http://sip-router.org/tracker/index.php?do=details&task_id=141

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