How to pretty-print STL containers in GDB?

Question

I've followed the instructions on the GDB wiki to install the python pretty-printers for viewing STL containers. My ~/.gdbinit now looks like this:

python 
import sys 
sys.path.insert(0, '/opt/gdb_prettyprint/python') 
from libstdcxx.v6.printers import register_libstdcxx_printers 
register_libstdcxx_printers (None) 
end 

However, when I run GDB and attempt to print an STL type, I get the following:

print myString
Python Exception <class 'gdb.error'> No type named std::basic_string<char>::_Rep.: 
$3 = 

Can anyone shed some light on this? I'm running Ubuntu 12.04, which comes with GDB 7.4.

Answer 1

You can try with below GDB macro (append it to your ~/.gdbinit file) to print STL containter types data and even their data members: https://gist.github.com/3978082