Linux C++ ._MyFirst ._MyLast vector equivilent

On Windows using VS2013 I am using ._MyFirst and ._MyLast to get the pointers to the first and last elements of the vector for a fast manipulation through pointer incrementing.

auto fPtr = vec._MyFirst;

On Linux though this does not seem to there but I assume there must be an equivalent of it. Would anyone know what it is?

Thank you