Reference for Wiring version 1.0 Build 0100+ If you have a previous version, use the reference included with your software. If see any errors or have any comments, let us know.
| Name | switch() |
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| Examples | int num = 1; switch (num) { case 0: Serial.println("Zero"); // Does not execute break; case 1: Serial.println("One"); // Prints "One" break; } char letter = 'N'; switch (letter) { case 'A': Serial.println("Alpha"); // Does not execute break; case 'B': Serial.println("Bravo"); // Does not execute break; default: // Default executes if the case labels Serial.println("None"); // don't match the switch parameter break; } // Removing a "break" enables testing // for more than one value at once char letter = 'b'; switch (letter) { case 'a': case 'A': Serial.println("Alpha"); // Does not execute break; case 'b': case 'B': Serial.println("Bravo"); // Prints "Bravo" break; } |
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| Description | Works like an if else structure, but switch() is more convenient when you need to select between three or more alternatives. Program controls jumps to the case with the same value as the expression. All remaining statements in the switch are executed unless redirected by a break. Only primitive datatypes which can convert to an integer (byte, char, and int) may be used as the expression parameter. The default is optional. | ||||||
| Syntax | switch (expression) { case label: statements case label: // Optional statements // Optional default: // Optional statements // Optional } |
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| Parameters |
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| Usage | Application | ||||||
| Related | case default break if() else |
