Multiple keyreleased events triggering per keyrelease

[SymmetryBreaking]

When running the following code in a loop if I simply press and release a key a single one time I find "Key released." printed well over 50 times:

void Game::GameLoop()
{
sf::Event currentEvent;
_mainWindow.pollEvent(currentEvent);

if (currentEvent.type == sf::Event::KeyReleased)
std::cout << "Key released." << std::endl;

}
 

while (!Exit())
{
GameLoop();
}
 

This is using SFML 2.3 with Microsoft Visual Studio Express 2013 with a release build.

[eXpl0it3r]

Because you don't actually check whether an event has been generated and yet still access the event, which leads to undefined behavior where the event type has a random value which then may match the value of sf::Event::KeyReleased.

Read the official tutorial on how to properly handle events.

[Nexus]

You're doing event handling wrong. Please read the tutorials to see how it's done correctly

[SymmetryBreaking]

Because you don't actually check whether an event has been generated and yet still access the event, which leads to undefined behavior where the event type has a random value which then may match the value of sf::Event::KeyReleased.

Read the official tutorial on how to properly handle events.

D'oh. I knew it was something obvious. I'm a little disappointed it was that obvious, but nonetheless thank you. Works perfectly now.