Why is Intellisense showing this error in VS2013?

Question

Intellisense is showing a red wiggly line below the function name `get_today` in its definition below, with the following error message: "cannot overload functions distinguished by return type alone". Note that the code compiles and executes without
any problem.
#define _CRT_SECURE_NO_WARNINGS
#include <ctime>
#include <iostream>
struct today { int d, m, y; };
struct today get_today() {
std::time_t t = std::time(0);
struct tm* now = std::localtime(&t);
return { now->tm_mday, now->tm_mon + 1, now->tm_year + 1900 };
struct today today = get_today();
class Date {
int d, m, y;
public:
Date(int, int, int);
Date(int, int);
Date(int);
Date();
int get_day() { return d; }
int get_month() { return m; }
int get_year() { return y; }
Date::Date(int d, int m, int y) : d{ d }, m{ m }, y{ y } {}
Date::Date(int d, int m) : d{ d }, m{ m } { y = today.y; }
Date::Date(int d) : d{ d } { m = today.m; y = today.y; }
Date::Date() { d = today.d; m = today.m; y = today.y; }
int main() {
Date d;
std::cout << d.get_day() << ' ' << d.get_month() << ' ' << d.get_year() << '\n';

Answer 1

Further to Simon's reply, the problem reproduces in the latest VS2015
CTP so I suggest that you submit it as a bug report on the MS connect
site. https://connect.microsoft.com/visualStudio/
Post a link back here to your report so that we can find it and
vote/validate it.
Dave