How can I know which version of the C++ "standard library" is installed?

Question

I would like to install the C++ standard library documentation (following the answers in Download C++ reference) but I do not know which version of library is installed in my Ubuntu.

Solution 1

Fire up synaptic and search for libstdc++ and see which version is installed, or run apt-cache search -n libstdc++ to see what versions are known, then you can check which one(s) are installed with apt-cache policy libstdc++-XXXX

Solution 2

Simple way to find the version of C++ standard library is

gcc --version

Hope this helps

Comments

[Tachyons]

This method won't work if he installed g++ from source

[psusi]

@tachyons, then he wouldn't be asking the question ;)

[kirill_igum]

doesn't mean that the c++ library is installed

[Derek Eden]

lol enough said