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fix recursion depth math functions.

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bolero-MURAKAMI 2012-12-08 13:45:09 +09:00
parent 0754fd0fad
commit 74729ce14f
8 changed files with 80 additions and 115 deletions
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10
sprout/math/cos.hpp
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@ -17,11 +17,11 @@ namespace sprout {
namespace detail {
template<typename T>
inline SPROUT_CONSTEXPR T
cos_impl_1(T x2, std::size_t first, std::size_t last) {
return last - first == 1
? (first % 2 ? -1 : 1) * sprout::detail::pow_n(x2, first) / sprout::math::factorial<T>(2 * first)
: sprout::math::detail::cos_impl_1(x2, first, first + (last - first) / 2)
+ sprout::math::detail::cos_impl_1(x2, first + (last - first) / 2, last)
cos_impl_1(T x2, std::size_t n, std::size_t last) {
return last - n == 1
? (n % 2 ? -1 : 1) * sprout::detail::pow_n(x2, n) / sprout::math::factorial<T>(2 * n)
: sprout::math::detail::cos_impl_1(x2, n, n + (last - n) / 2)
+ sprout::math::detail::cos_impl_1(x2, n + (last - n) / 2, last)
;
}
template<typename FloatType>