diff options
Diffstat (limited to 'modules/fdlibm/src/e_acos.cpp')
| -rw-r--r-- | modules/fdlibm/src/e_acos.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/modules/fdlibm/src/e_acos.cpp b/modules/fdlibm/src/e_acos.cpp index 12be296cb9..4f497b3b3f 100644 --- a/modules/fdlibm/src/e_acos.cpp +++ b/modules/fdlibm/src/e_acos.cpp @@ -38,6 +38,7 @@ * Function needed: sqrt */ +#include <cmath> #include <float.h> #include "math_private.h" @@ -87,13 +88,13 @@ __ieee754_acos(double x) z = (one+x)*0.5; p = z*(pS0+z*(pS1+z*(pS2+z*(pS3+z*(pS4+z*pS5))))); q = one+z*(qS1+z*(qS2+z*(qS3+z*qS4))); - s = sqrt(z); + s = std::sqrt(z); r = p/q; w = r*s-pio2_lo; return pi - 2.0*(s+w); } else { /* x > 0.5 */ z = (one-x)*0.5; - s = sqrt(z); + s = std::sqrt(z); df = s; SET_LOW_WORD(df,0); c = (z-df*df)/(s+df); |