enable pretty-printers gdb

.gdbinit

python
import sys
sys.path.insert(0, "d:\\MinGW\\share\\gcc-8.2.0\\python")
from libstdcxx.v6.printers import register_libstdcxx_printers
register_libstdcxx_printers (None)
end

readme.txt

1. Install MinGW with gdb-python27
2. Install python 2.7
3. Add c:\users\{user} to HOME, if not exists - create it
4. Add .gdbinit to c:\users\{user}, change before path in it if needed
5. use gdb-python27.exe for debug