initialize a vector to zeros C++/C++11

Question

I know in C++11 they added the feature to initialize a variable to zero as such

double number = {}; // number = 0
int data{};  // data = 0

Answer 1

Initializing a vector having struct, class or Union can be done this way

std::vector someStructVect(length);
memset(someStructVect.data(), 0, sizeof(SomeStruct)*length);