How obtain a good overview of C and C++ native library. The response is simple search information on good website :
cplusplus Purpose an overview with sample of how use the C/STL functions.
You have excellent graph that show the dependencies of each STL module. A forum to ask question, It's pretty cool !
This website cannot replace the first one but come in complement. You can see the references in your language if already people have contributed.. It's pretty nice.
Also you have a guide that come in complement to cplusplus.com you have a section General Topics that allow to cover the subjects: Pre-processor commands, Operator Precedence, Escape Sequences, ASCII Chart, Data Types,Keywords, Header Files.
So if you do not know what you can choose between use deque, vector, list, or use which algorithm to perform sort/find operation in array do not hesitate, take a look to this website. You will become a more effective programmer by using the good tools and the algorithm that fit the best the data. ( set