Here’s how c++11 has made compile time programming (slightly) easier
template <typename UIntType> constexpr bool IsPowerOfTwo(UIntType r)
{
return (r & (r - 1)) == 0;
}
namespace detail
{
template<class UIntType, UIntType r, bool>
struct ModuloHelper;
template<class UIntType, UIntType r>
struct ModuloHelper<UIntType, r, true>
{
template<class T>
static T calc(T value)
{
return value & (r - 1);
}
};
template<class UIntType, UIntType r>
struct ModuloHelper<UIntType, r, false>
{
template<class T>
static T calc(T value)
{
while (value >= r)
{ value -= r; }
return value;
}
};
}
template<class UIntType, UIntType r>
struct Modulo : detail::ModuloHelper<UIntType, r, IsPowerOfTwo(r)>
10
solved c++11 implementation of Well Equidistributed Long-period Linear (WELL) without boost?