Everything Is References

Is there a language in which variables, function arguments, etc, are always references by default?

For example:

int x = 5;
int y = x;
y++;  // x and y are both 6

If you really did want a copy of something, you'd have to use a keyword:

int x = 5;
int y = copy(x);

And pass-by-value would also have to be done explicitly:

void func(int z)
{
   int w = copy(z); // now w is effectively "local"
}

It would force programmers to at least be aware of the fact that they're making a copy.

>>31
Are you on the Crysis dev team?
>>34
1% of applications where speed matters
Well, the entire gaming industry somehow manages to squeeze into that 1% of the world's applications, along with all embedded software that controls absolutely anything important, along with all operating systems...  even web browsers compete to see who loads a page faster.  So what is this remaining 99% of applications?  iPhone apps?