CS 1337 Lecture Notes - Lecture 18: Temporary Variable, Default Constructor, Include Directive
4 Apr 2018
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// description : hello world in c++, ansi-style. * a vector is a sequence container that works like an array but is dynamic in size. * overload the [ ] to provide access to existing elements. * #include header file to use vectors. * insert in memory and memory objects to a container. Vectors have a lot of different types of iterators. C++ 11 new member functions for stl containers. Function uses a technique called emplacement emplacement avoids creation of temporary objects in memory when adding new. Creates of specific size and defaults the values. Can be used to insert items into a vector. Members such as insert and push_back can cause temporary objects to be created. But if we"re performing large numbers of inesrts, that"s a lot of wasted time. These functions are more efficient than insert and push_back.
