Where can I find a list to all C++ functions?

Once again I am studying C++ and hit the same wall: the reference list of functions. I could not find a complete list of functions implemented by the standard C++ headers, only websites with these functions shown one by one, separated by classes, templates etc.

I am looking for something similar to this: https://www.ibm.com/docs/en/i/7.4?topic=extensions-standard-c-library-functions-table-by-name

but for C++. Like:

 - <iostream> std::cin console input 
 - <iostream> std::cout console output
 - <iostream> std::cerr console unbuffered error
 - <iostream> std::clog console buffered error
 - <vector> .begin()
 - <vector> .rbegin()
 - <vector> .end()
 - <vector> .rend()

I am trying to avoid reinvent the wheel. My project involves calculations over 3D matrixes, file manipulations, string manipulations and so. If there are already functions that do what I want, I prefer to use the standard C++ library, instead of dealing with arithmetics of pointers. But first I need to know what C++ standard is capable of.