Convert std::string to integer

Question

I\'m trying to convert a std::string stored in a std::vector to an integer and pass it to a function as a parameter.

This is a simplified vers

Answer 1

record[i].c_str

is not the same as

record[i].c_str()

You can actually get this from the error message: the function expects a const char*, but you're providing an argument of type const char* (std::basic_string, std::allocator >::)()const which is a pointer to a member function of the class std::basic_string, std::allocator > that returns a const char* and takes no arguments.