ZealOS/src/Demo/Exceptions.CC

//$BK,1$WARNING:$BK,0$ Don't return out of a catch{}.  This
//might get fixed.

//You can use $LK,"PutExcept",A="MN:PutExcept"$() in a catch stmt
//and it will report args.
Bool Prompt(I64 i)
{
	"%d ", i;
	return YorN;
}

U0 D1()
{
	"D1\n";
	if (Prompt(1))
		throw('Point1');
	if (Prompt(2))
		throw('Point2');
}

U0 D2()
{
	"D2\n";
	try
	{
		D1;
		if (Prompt(4))
			throw('Point4');
	}
	catch
	{
		"D2 handler\n"
		"Ch:%c:%P\n", Fs->except_ch, Fs->except_callers[0];
		if (Fs->except_ch == 'Point1')
		{
			"Caught in D2\n";
			Fs->catch_except = TRUE;
		}
	}
}

U0 Demo()
{
	try
	{
		D2;
		if (Prompt(3))
			throw('Point3');
	}
	catch
	{
		"Demo handler\n"
					"Ch:%c:%P\n", Fs->except_ch, Fs->except_callers[0];
		Fs->catch_except = TRUE;
	}
}

Demo;