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Resolve double-promotion warnings when compiling with clang.

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`sin` was calling `sin(double)` instead of `std::sin(float)`
This commit is contained in:
Christoph Hertzberg 2019-12-13 22:46:40 +01:00
parent 9b7a2b43c2
commit 8e5da71466
1 changed files with 4 additions and 1 deletions
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Eigen/src/Core/MathFunctions.h
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@ -540,8 +540,11 @@ struct expm1_impl<std::complex<RealScalar> > {
// = exp(x) * cos(y) - 1.
// = expm1(x) + exp(x) * (cos(y) - 1)
// = expm1(x) + exp(x) * (2 * sin(y / 2) ** 2)
RealScalar erm1 = std_fallback::expm1(xr);
// TODO better use numext::expm1 and numext::sin (but that would require forward declarations or moving this specialization down).
RealScalar erm1 = expm1_impl<RealScalar>::run(xr);
RealScalar er = erm1 + RealScalar(1.);
EIGEN_USING_STD_MATH(sin);
RealScalar sin2 = sin(xi / RealScalar(2.));
sin2 = sin2 * sin2;
RealScalar s = sin(xi);