A refinement for pure implementation
bearophile
bearophileHUGS at lycos.com
Sat Nov 10 06:32:59 PST 2012
Do you remember if Hara has implemented a patch to allow a2 to be
immutable?
int[] foo1(int x) pure {
return null;
}
int[] foo2(string s) pure {
return null;
}
void main() {
immutable a1 = foo1(10); // OK
immutable a2 = foo2("hello"); // currently error
}
The idea behind this is that the type of s is different from the
return type of foo2, so foo2 is a strongly pure function.
Bye,
bearophile
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