diff options
Diffstat (limited to 'winsup/mingw/mingwex/complex/ctanl.c')
-rwxr-xr-x | winsup/mingw/mingwex/complex/ctanl.c | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/winsup/mingw/mingwex/complex/ctanl.c b/winsup/mingw/mingwex/complex/ctanl.c deleted file mode 100755 index 7d3076159..000000000 --- a/winsup/mingw/mingwex/complex/ctanl.c +++ /dev/null @@ -1,41 +0,0 @@ -/* ctanl.c */ - -/* - Contributed by Danny Smith - 2005-01-04 -*/ - -#include <math.h> -#include <complex.h> -#include <errno.h> - - -/* ctan (x + I * y) = (sin (2 * x) + I * sinh(2 * y)) - / (cos (2 * x) + cosh (2 * y)) */ - -long double complex ctanl (long double complex Z) -{ - long double complex Res; - long double two_I = 2.0L * __imag__ Z; - long double two_R = 2.0L * __real__ Z; - long double denom = cosl (two_R) + coshl (two_I); - if (denom == 0.0L) - { - errno = ERANGE; - __real__ Res = HUGE_VALL; - __imag__ Res = HUGE_VALL; - } - else if (isinf (denom)) - { - errno = ERANGE; - __real__ Res = 0.0; - __imag__ Res = two_I > 0 ? 1.0L : -1.0L; - } - else - { - __real__ Res = sinl (two_R) / denom; - __imag__ Res = sinhl (two_I) / denom; - } - return Res; -} - |