Reference Language | Libraries | Comparison | Changes
The void keyword is used only in function declarations. It indicates that the function is expected to return no information to the function from which it was called.
// actions are performed in the functions "setup" and "loop"
// but no information is reported to the larger program
void setup()
{
// ...
}
void loop()
{
// ...
}
Corrections, suggestions, and new documentation should be posted to the Forum.
The text of the Arduino reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.