STL container function return values

Question

When looking over the member functions of the STL containers, an odd thought occurred to me. Why don\'t functions like std::vector::push_back(T) not ha

Answer 1

Interesting question. The obvious return value would be the vector (or whatever) that the operation takes place on, so you could then write code like:

if ( v.push_back(42).size() > n ) {
   // do something
}

I personally don't like this style, but I can't think of a good reason not to support it.