[ 2017-03-04, Kona ]

Minor wording update and status to Tentatively Ready.

Previous resolution [SUPERSEDED]:

This wording is relative to N4606.

1. Change the "returns" element for std::log ([complex.transcendentals] p17):

   template<class T> complex<T> log(const complex<T>& x);
   

   -16- Remarks: The branch cuts are along the negative real axis.

   -17- Returns: The complex natural (base-ℯ) logarithm of x. For all x, imag(log(x)) lies in the interval [-π, π], and when x is a negative real number, imag(log(x)) is π. [Note: The semantics of std::log are intended to be the same in C++ as they are for clog in C. — end note]

2. Change the "returns" element for std::sqrt ([complex.transcendentals] p25):

   template<class T> complex<T> sqrt(const complex<T>& x);
   

   -24- Remarks: The branch cuts are along the negative real axis.

   -25- Returns: The complex square root of x, in the range of the right half-plane. If the argument is a negative real number, the value returned lies on the positive imaginary axis.[Note: The semantics of std::sqrt are intended to be the same in C++ as they are for csqrt in C. — end note]