Exception handling

In Armed Assault exception handling is an implemented system of special scripting commands (try, catch and throw), which allows your scripts to create and to react to exceptions.

Standard construction is:

try
{
	// code block that can throw exception
	if (_name == "") then
	{
		throw "no name"
	}
	else
	{
		titleText [[[format]] ["Good morning, Captain %1.", _name], "PLAIN DOWN"]
		~1
		titleText [_name, "PLAIN DOWN"]
	}
}
catch
{
	// code block that processes an exception
	if (_exception == "no name") then
	{
		hint "Name was not entered"
		titleText ["And the name isn't", "PLAIN DOWN"]
	}
};

⚠

ArmA scripting commands do not create SQF exceptions by themselves if they encounter an illegal situation, they throw a compilation exception (i.e. the here-described exception handling cannot be usedfor error trapping).

The following would therefore not create a catchable exception:

try
{
a = 1/0; // SQF error happens here already
}
catch
{
hint "illegal operation";
};