[LLVMbugs] [Bug 19425] ostream_iterator::operator* is not constant

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Mon Apr 14 10:48:40 PDT 2014


Aleksej Lebedev <root at zta.lk> changed:

           What    |Removed                     |Added
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |INVALID

--- Comment #2 from Aleksej Lebedev <root at zta.lk> ---
You are probably right.

It is very confusing though.
Operator * doesn't really modify the iterator. It is the same way as *p doesn't
modify p when p is a pointer.

It is legal to do this with pointers. The following code does compile:

void write_5(int *const &i)
    *i = 5;

int main()
    int m[2];
    int *p = m;

The reason for iterators being treated not the same way as pointers is probably
very "technical" as it is often in C++.
Anyway, whatever the reason I apologize I didn't doublecheck this.

Thank you.

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