How to connect the getchar_unlocked function?

Question

Programming

All the best :)
I am writing in 13 visual studios. the compiler doesn't recognize the getchar_unlocked function (throws error C3861) :(
Let's say we have this super elementary thing:

#include <stdio.h>
int main()
{
  int v;
  v = getchar_unlocked();
  return v;
}

Why does not it work?

Answer 1

Try

#ifdef _MSC_VER
#define getchar_unlocked _getchar_nolock
#endif