https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70607
Bug ID: 70607
Summary: The return type of std::conj must be std::complex<T>
Product: gcc
Version: 4.9.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: Alexander.Voigt at desy dot de
Target Milestone: ---
Host: GNU/Linux x86_64
Target: GNU/Linux x86_64
Created attachment 38229
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38229&action=edit
Program which should not compile
According to the C++11 standard, all overloads of std::conj() must return a
std::complex<T>, with some type T. In libstdc++, however, there seems to exist
an overload of std::conj() which returns a scalar floating point type.
I've attached an example program, which makes use of this spurious overload. I
believe, this example program should not compile. However, it does compile
with g++ 4.9.2 on Debian GNU/Linux jessie.
