Set individual bit in C++

Question

I have a 5 byte data element and I need some help in figuring out how in C++ to set an individual bit of one of these byte; Please see my sample code below:

char m_TxBuf[4]; 

I would like to set bit 2 to high of byte m_TxBuf[1].

    
00000 0 00
      ^ This one

Any support is greatly appreciated; Thanks!

Answer 1

Bitwise operators in C++.

"...set bit 2..."

Bit endianness.

I would like to set bit 2 to high of byte m_TxBuf[1];

m_TxBuf[1] |= 1 << 2