High-quality libraries for C++.

Question

We all know about Boost.

What other free C++ libraries are worth using? Why? Are they easily usable with common compilers?

Answer 1

I like Xerces XML parser. It is portable and has rich generating and validating capabilities.

Answer 2

OpenCV is really great for anything related to computer vision

Answer 3

Blimey .... it totally depends on what you want to do. There are THOUSANDS of cross-platform and platform specific libraries for C++ and any one of them may or may not be useful to what you want to do. Personally, I have found very little of actual use in boost. Each to their own I guess but what is useful to one person is not, necessarily, useful to the next.

Answer 4

Qt is a multiplatform framework that provides you not only with a great GUI toolkit, but also with a lot of different libraries and functionality that makes your life a lot easier, including a reimplementation of many standard C++ features, easing their use even further. It's heavily used in the KDE desktop environment in Linux.

It's an awesome framework. C++ almost feels like Java with it.

Answer 5

I like wxWidgets.

Answer 6

What kind of libraries do you have in mind? Lots of wheel reinventing can be avoided if you use Boost.

Answer 7

best unit testing framework by far: http://code.google.com/p/googletest/

Answer 8

Allegro is my favorite for making small games.

Answer 9

See: What modern C++ libraries should be in my toolbox?