Question about a warning

I am using Boland free compiler 5.5 and I get this warning:
Warning W8066 test.cpp 11: Unreachable code in function main()

This is the code:

PHP Code:

---

#include <stdio.h>
#include <windows.h>

int main()
{
    while (true)
    {
        printf("test\n");
        Sleep(100);
    }
    return 0;
} 


---

Does this just mean the program won't end?

Looks like it.
The loop can not end.

It's a bit more generic than that, because it will probably be flagged by the following code as well:

Code:

---

void func() {
    if(true) {
        cout << "Hello" << endl;
    } else {
        cout << "Not called" << endl;
    }
}

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does the code that is unreachable not compile and not say find template parameters invalid due to used operations in such code block?

No, it compiles fine. I just wanted to make a program that keeps checking for something and if it is true then call a function.