The answer is using the sizeof operator.
The important thing is that sizeof always returns the number of bytes of the operand regardless it is an array or a basic type. So to get the number of elements in an array, you should use the code below:
int a[]={1,2,3,4,5};
int n=sizeof(a)/sizeof(a[0]);
Did you like this?
Tip admin with Cryptocurrency
Tip admin with Cryptocurrency
Donate Bitcoin to admin
Scan the QR code or copy the address below into your wallet to send some bitcoin:
Donate Bitcoin Cash to admin
Scan the QR code or copy the address below into your wallet to send bitcoin:
Donate Ethereum to admin
Scan the QR code or copy the address below into your wallet to send some Ether:
Donate Litecoin to admin
Scan the QR code or copy the address below into your wallet to send some Litecoin:
Donate Monero to admin
Scan the QR code or copy the address below into your wallet to send some Monero:
Donate ZCash to admin
Scan the QR code or copy the address below into your wallet to send some ZCash:
Permalink
Since C++17 you can simply use std::size(a)
You also have std::array (C++11) that is a recommended replacement to C arrays.