::?

[atjm88]

Low::Mig(string J, bool K, float thr)
{
}

void Low::Cis(string J)
{
}

Hi, can I know any different between 2 code above?

Why one have void, another one don't have?

And why both of them having this ::?

[webJose]

You can probably find your answers if you study a basic C++ tutorial. This site has one under Documentation. Check it out. The :: is the scope operator.