return

Description

Terminate a function and return a value from a function to the calling function, if desired.

Syntax

return;

return value;

Parameter Values

  • value: Allowed data types: any variable or constant type.

Example Code

A function to compare a sensor input to a threshold

int checkSensor() { if (analogRead(0) > 400) { return 1; } else { return 0; } }

The return keyword is handy to test a section of code without having to "comment out" large sections of possibly buggy code.

void loop() { // brilliant code idea to test here return; // the rest of a dysfunctional sketch here // this code will never be executed }

See Also

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