bitClear()
Description
Clears (writes a 0 to) a bit of a numeric variable.
Syntax
bitClear(x, n)
Parameter Values
- x: the numeric variable whose bit to clear.
- n: which bit to clear, starting at 0 for the least-significant (rightmost) bit.
Return Values
- x: the value of the numeric variable after the bit at position n is cleared.
Example Code
Demonstrates the use of bitClear() by printing the value of a variable to the Serial Monitor before and after the use of bitClear().
void setup() {
Serial.begin(9600);
byte x = 0b10000100; // the 0b prefix indicates a binary constant
Serial.print("BEFORE: ");
Serial.println(x, BIN); // 10000100
bitClear(x, 2); // clear the third bit
Serial.print("AFTER: ");
Serial.println(x, BIN); // 10000000
}
void loop() {}
The result in Serial Monitor:
8
Serial.println("Hello World!");
Message (Enter to send message to 'Arduino Uno' on 'COM15')
New Line
9600 baud
BEFORE: 10000100
AFTER: 10000000
See Also
- Language : bit()
- Language : bitRead()
- Language : bitSet()
- Language : bitWrite()
- Language : highByte()
- Language : lowByte()
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