diff options
Diffstat (limited to 'math/s_ctan.c')
| -rw-r--r-- | math/s_ctan.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/math/s_ctan.c b/math/s_ctan.c index 97a7a0376b..eaf31fa647 100644 --- a/math/s_ctan.c +++ b/math/s_ctan.c @@ -53,12 +53,11 @@ __ctan (__complex__ double x) double sinrx, cosrx; double den; const int t = (int) ((DBL_MAX_EXP - 1) * M_LN2 / 2); - int rcls = fpclassify (__real__ x); /* tan(x+iy) = (sin(2x) + i*sinh(2y))/(cos(2x) + cosh(2y)) = (sin(x)*cos(x) + i*sinh(y)*cosh(y)/(cos(x)^2 + sinh(y)^2). */ - if (__glibc_likely (rcls != FP_SUBNORMAL)) + if (__glibc_likely (fabs (__real__ x) > DBL_MIN)) { __sincos (__real__ x, &sinrx, &cosrx); } |