Difference between and ?

Question

How come this code

std::map  m;
m[\"a\"]=1;

compiles with (I\'m using MSVC 2010)

#include 

        

Answer 1

As stated, string.h and cstring are C headers (while cstring is basically a C++ wrapper for string.h), containing functions for C strings, which are char[] terminated by '\0'. You want to use the c++ class string, which header is .