What is the syntax for this instruction. bit(n) of what ? There must be another argument. I've tried several formats. None worked. There don't seem to be any examples. Obviously, there are other ways to do this, but I was curious as to the correct syntax ?

bit() - Arduino Reference The Arduino programming language Reference, organized into Functions, Variable and Constant, and Structure keywords.

void setup() { Serial.begin(9600); // opens serial port, sets data rate to 9600 bps long x; for (int n = 0; n < 16; n++) { x = bit(n); // equivalent to x = 1 << n; Serial.println(x, BIN); } } void loop() {

It returns the value of the bit 2^n where bit n is the specified bit. For example bit(3) = 2^3 or 8. What did you think it did?

Maybe you are thinking it is one of these bitClear() bitRead() bitSet() which do take two arguments, something to operate upon, and a bit number. Note that the result is the returned value, the argument is not changed. HTH a7

I know what it does....That wasn't my question...

Yes, but there is an argument missing. Bit 'n' of what BYTE is my question bit(n) only takes one argument.

[image] kavala: bit(n) of what ? Assume: byte m = 0b10101010; //b7, b6, ..., b1, b0 In the above, every bit has -- Positional Factor (PF), Positional Weight )PW), and Positional Value (PV). For example: For bit-3 (b3): //n = 3 Positional Factor (PF) = 1 Positional Weight (PW) = 2^3 = …

I don't need lessons on bits and bytes thanks. My question is syntactical. You are all missing the point. bit(n) only takes one argument, so answer me, "which byte or variable is the bit in question coming from" ? Strangely enough, this compiles... x = bit(0), y;

Your question was succinctly answered by @Delta_G back in post 7 . [image] Delta_G: All bit(n) is is a shorthand for ((byte)1<<n)

Bit() correct syntax

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ruilviana March 27, 2024, 10:23pm 2

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Bit() correct syntax

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