TCC is a small and fast C compiler. And the LibTCC use TCC as a backend for dynamic code generation. With LibTCC, we can add some C source to speed up the time-consuming subroutines. For example:     Func Fib($n) Local $C $C = 'int fib(int n) ' & @LF $C &= '{ ' & @LF $C &= ' if (n <= 2) ' & @LF $C &= ' return 1; ' & @LF $C &= ' else ' &