=                        Assignment operator
 
 lvalue = exp            Assignment
 lvalue                  any variable
 exp                     any expression whose type is compatible with lvalue
 
    The assignment operator `=' evaluates exp and assigns the resulting
    value to lvalue.
 
    The expression "lvalue = exp" itself yields a value equivalent to exp
    after the assignment to lvalue is made, which allows multiple
    assignments such as `a = b = 2'.
 
       Note:    A common error is to use = instead of == in a comparison
                test, such as "if (a = b) ...".

Seealso:


 op= 
 ==