The cancer-color proliferation also has created some quirky chromatic overlaps. Orange represents two cancers (kidney, leukemia). Green stands for three (liver, lymphoma gall bladder). Variations of purple signify six (pancreatic, testicular, leiomyosarcoma, Hodgkin lymphoma, stomach and esophageal).
If the container is empty, then begin() == end(); All standard iterator and container types behave the same in this regard: Â§23.2.1 [container.requirements.general] p6. begin() returns an iterator referring to the first element in the container.
The most obvious form of iterator is a pointer: A pointer can point to elements in an array, and can iterate through them using the increment operator (++). But other kinds of iterators are possible. For example, each container type (such as a. ) has a specific iterator type designed to iterate through its elements.