Hi,


I have a function that takes as an argument a vector of doubles and tries to convert it to a vector of float128.


When I accumulate the values in the float128 vector it looks like it does double additions and only casts up at the last step.


The initial vector is defined as const std::vector<double

The float128 vector is defined as std::vector<float128> epoint(num)


And I try to do the casting (inside a loop) via: epoint.at(i)=(float128(e8.at(i)));


If I do the accumulation on the original vector with no casting into a float128, I get the same as accumulating the vector that should be of float128 type.


How should I be doing the casting?


Thanks,