|= operator in C++

[sunny_master_07]

what is function of |= operator in C++?

like if we write a |= b;

what does |= do here?

thanks.

[matsp]

If we assume that a and b are integer, then a |= b is the same as a = a | b, which is a bitwise or - so all bits that are set in b gets set in a as well.

--
Mats

[laserlight]

Read the tutorial on bitwise operators. a |= b is short hand for a = a | b.