Auto Completion Plugin

[Error]

Recently, I started to use Code::Blocks 12.11 instead of 10.05.

I am doing normal C++ codes, but auto-completion isn't working  :'(

How can I get rid of this.

can you believe that , it's not either suggesting "printf" or "scanf"

[scarphin]

Are you sure you've included the correct files like 'stdio.h' instead of 'iostream'? I'm asking because although they can be used in C++, 'printf' and 'scanf' are not actually C++. Other than that I've never managed to get code completion for C++ standard library, don't know why. Must be something related with settings.

[Error]

My header files are okay . Nothing is showing for auto completion absolutely nothing