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Tentative fix for overload resolution issue with Oracle C++.

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This commit is contained in:
jzmaddock
2017-04-26 19:51:03 +01:00
parent 9c75396c05
commit 1d934167fd
1 changed files with 7 additions and 3 deletions
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10
include/boost/integer/common_factor_rt.hpp
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@ -459,17 +459,21 @@ inline BOOST_CXX14_CONSTEXPR Integer lcm(Integer const &a, Integer const &b) BOO
return gcd_detail::lcm_imp(static_cast<Integer>(gcd_detail::gcd_traits<Integer>::abs(a)), static_cast<Integer>(gcd_detail::gcd_traits<Integer>::abs(b))); return gcd_detail::lcm_imp(static_cast<Integer>(gcd_detail::gcd_traits<Integer>::abs(a)), static_cast<Integer>(gcd_detail::gcd_traits<Integer>::abs(b)));
} }
#ifndef BOOST_NO_CXX11_VARIADIC_TEMPLATES #ifndef BOOST_NO_CXX11_VARIADIC_TEMPLATES
//
// This looks slightly odd, but the variadic forms must have 3 or more arguments, and the variadic argument pack may be empty.
// This matters not at all for most compilers, but Oracle C++ selects the wrong overload in the 2-arg case unless we do this.
//
template <typename Integer, typename... Args> template <typename Integer, typename... Args>
inline BOOST_CXX14_CONSTEXPR Integer gcd(Integer const &a, Integer const &b, Args const&... args) BOOST_GCD_NOEXCEPT(Integer) inline BOOST_CXX14_CONSTEXPR Integer gcd(Integer const &a, Integer const &b, const Integer& c, Args const&... args) BOOST_GCD_NOEXCEPT(Integer)
{ {
Integer t = gcd(b, args...); Integer t = gcd(b, args...);
return t == 1 ? 1 : gcd(a, t); return t == 1 ? 1 : gcd(a, t);
} }
template <typename Integer, typename... Args> template <typename Integer, typename... Args>
inline BOOST_CXX14_CONSTEXPR Integer lcm(Integer const &a, Integer const &b, Args const&... args) BOOST_GCD_NOEXCEPT(Integer) inline BOOST_CXX14_CONSTEXPR Integer lcm(Integer const &a, Integer const &b, Integer const& c, Args const&... args) BOOST_GCD_NOEXCEPT(Integer)
{ {
return lcm(a, lcm(b, args...)); return lcm(a, lcm(b, c, args...));
} }
#endif #endif
// //