So, I've defined a class like

DataLoggingSystemStateReceiver
{
DataLoggingSystemStateReceiver()
{
    // stuff
}

//  ... other functions here

};

In main, I instantiate DataLoggingSystemStateReceiver like so:

int main()
{
    // ... run stuff
    Sensor sensor(port, timer);

    DataLoggingSystemStateReceiver dlss();

    Log::notice("started");
    return 0;
}

However, when I step through this code in gdb, it runs:

Sensor sensor(port, timer);

skips

DataLoggingSystemStateReceiver dlss();

and continues with

Log::notice("started");

What gives?

EDIT: By changing

DataLoggingSystemStateReceiver dlss();

to

DataLoggingSystemStateReceiver dlss;

in main(), the line executes. Can someone explain why?