I believe the default standard did change to c++14. How did you compile?
Could you make a case in godbolt.org?
Am 27.03.2018 um 04:52 schrieb Yuri via cfe-users:
> This testcase:
>
> # include <complex>
> # include <math.h>
>
> # define _I ((complex_t)(1i))
> typedef std::complex<double> complex_t;
>
> complex_t f(const double omega) {
> complex_t p = cos (omega) + _I * sin (omega);
> return p;
> }
>
> works in clang40 and clang50, but fails in clang60:
>
> c.c:9:32: error: implicit conversion from '_Complex int' to 'double'
> is not permitted in C++
> complex_t p = cos (omega) + _I * sin (omega);
> ^~
> c.c:5:26: note: expanded from macro '_I'
> # define _I ((complex_t)(1i))
> ~ ^~
> 1 error generated.
>
>
> Yuri
>
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