29 Numerics library [numerics]

29.5 Complex numbers [complex.numbers]

29.5.9 Additional overloads [cmplx.over]

1
#

The following function templates shall have additional overloads: 

arg                   norm
conj                  proj
imag                  real
2
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The additional overloads shall be sufficient to ensure:

  1. 1.If the argument has type long double, then it is effectively cast to complex<long double>.

  2. 2.Otherwise, if the argument has type double or an integer type, then it is effectively cast to complex<​double>.

  3. 3.Otherwise, if the argument has type float, then it is effectively cast to complex<float>.

3
#

Function template pow shall have additional overloads sufficient to ensure, for a call with at least one argument of type complex<T>:

  1. 1.If either argument has type complex<long double> or type long double, then both arguments are effectively cast to complex<long double>.

  2. 2.Otherwise, if either argument has type complex<double>, double, or an integer type, then both arguments are effectively cast to complex<double>.

  3. 3.Otherwise, if either argument has type complex<float> or float, then both arguments are effectively cast to complex<float>.