OK. I misunderstood.

C does not allow function overloading, so same problem is not there.

In C++, 

// test.cpp

#include <stdio.h>

void foo(bool) { printf("bool\n"); }

void foo(long) { printf("long\n"); }

int main(int argc, char **argv)

{

foo(false);  // matches bool version

foo(true);   // matches bool version

foo(0);  // ambiguous

foo(1);  // ambiguous

foo(2);  // ambiguous

return 0;

}

The behavior is same with GCC 4.7.2 (using msys) and dmc.

Walter, now I changed my opinion. It seems not correct that being regarded bool type as one of the integer. 

How about?

Kenji Hara

2013/4/27 Minas Mina <minas_mina1990@hotmail.co.uk>

On Saturday, 27 April 2013 at 11:41:30 UTC, kenji hara wrote:

First, I can guess that why Walter disagree *fixing* this problem.

http://dlang.org/overview.html

Major Design Goals of D
9. Where D code looks the same as C code, have it either behave the same

or issue an error.

C doesn't have a bool type, so how can D behave the same?