Reading source code of string library implementation in GNU C++

[rakesh_usenet]

Hi,
I had recently downloaded the most recent version of GNU G++ source
code -
ftp://mirrors.usc.edu/pub/gnu/gcc/gcc-3.4.3/gcc-g++-3.4.3.tar.bz2 .

I unzipped the same and here are the contents.

$ ls -al
total 16
drwxr-xr-x   3 root root 4096 Jan  3 22:16 gcc/
drwxrwxrwx  11  515  515 4096 Nov  4 20:13 libstdc++-v3/

I want to read about the string library implementation (the
implementation behind
#include <string> ) .

I am just curious as to where i should start. Also are there any
specific guidelines available related to reading the GNU C++ STL
implmentation as I want to dig deeper into them as time goes on.
Thanks for your help.