Immutable declaration

[Beliavsky]

@urbanjost

Nice name for it, like that much better than IMMUTABLE. Anyone know of any other language with that attribute? I do not think I ever looked for it, but that would give more weight to adding a new attribute to types.

What about const as in C and C++? In C++ you can write

#include <iostream>
#include <cstdlib>
#include <ctime>

int main()
{
	srand(time(0));
	int i = rand();
	const int j = i + 1;
	std::cout << i << " " << j;
	// invalid: j = j + 1;
}