C++ convert vector to vector

Question

What is a good clean way to convert a std::vector intVec to std::vector doubleVec. Or, more generally, to convert two vectors of convertible types?

user_1219598 · Answer

Use std::transform algorithm:

std::transform(intVec.begin(), intVec.end(), doubleVec.begin(), [](int x) { return (double)x;});

C++ convert vector<int> to vector<double>

2 Answers