to_string not working

Anyone please tell how to convert a given number into a string?

I am using to_string()…but it is neither working in codeblocks nor in DevC++.

@bansal1232 started this discussion few months back…but I didn’t get any satisfactory answer.

Don’t forget to include string.
See this.

No,that’s not the case…I always use bits/stdc++.h

ideone uses gcc 6.3 while DevC++ uses gcc 4.9.2 and that might be making the difference.