| /** |
| * This file has no copyright assigned and is placed in the Public Domain. |
| * This file is part of the w64 mingw-runtime package. |
| * No warranty is given; refer to the file DISCLAIMER.PD within this package. |
| */ |
| /* |
| clog.c |
| Contributed by Danny Smith |
| 2003-10-20 |
| */ |
| |
| /* clog (x + I * y) = log (hypot (x, y)) + I * atan2 (y, x) */ |
| |
| #include <math.h> |
| #include <complex.h> |
| |
| double complex clog (double complex Z) |
| { |
| double complex Res; |
| __real__ Res = log (_hypot (__real__ Z, __imag__ Z)); |
| __imag__ Res = carg (Z); |
| return Res; |
| } |
| |