External environment refers to the major factors and forces outside the organization that have the potential to significantly affect the performance of an organization. External environment is divided into two parts i.e. mega environment or general environment and specific or task environment.
_tcscat is a C function, to concatenate C-style strings; CString is a class (which has built in concatenation via operator+), not a C-style string.
If you use operator + with a floating-point number and an integer, the compiler âcallsâ a special function to turn the int into a float, and then âcallsâ the floating-point addition code. But in C++, itâs possible to define new operators that work with classes. This definition is just like an ordinary function definition except that the name of the function consists of the keyword operator followed by the operator. Thatâs the only difference, and it becomes a function like any other function, which the compiler calls when it sees the appropriate pattern.