• Christof Meerwald (21/21) Jan 19 2003 #include
• Christof Meerwald (8/28) Jan 20 2003 With DMC 8.33.3 I now also get a "0" for
• gf (10/39) Mar 13 2003 Interesting,

Christof Meerwald <cmeerw web.de> writes:

#include <stdio.h>

template<typename T> struct is_reference
{
  enum { value = false };
};

template<typename T> struct is_reference<T&>
{
  enum { value = true };
};

int main()
{
  printf("%d\n", is_reference<int>::value);
  printf("%d\n", is_reference<void (int)>::value);
}


Compiled with DMC, the output is both times "1" (but I guess it should be
0). Medium-high priority (preferred boost::function syntax depends on it)


bye, Christof

-- 
http://cmeerw.org                                 JID: cmeerw jabber.at
mailto cmeerw at web.de

...and what have you contributed to the Net?

Christof Meerwald <cmeerw web.de> writes:

On Sun, 19 Jan 2003 12:52:50 +0000 (UTC), Christof Meerwald wrote:
 #include <stdio.h>
 
 template<typename T> struct is_reference
 {
   enum { value = false };
 };
 
 template<typename T> struct is_reference<T&>
 {
   enum { value = true };
 };
 
 int main()
 {
   printf("%d\n", is_reference<int>::value);
   printf("%d\n", is_reference<void (int)>::value);
 }
 
 Compiled with DMC, the output is both times "1" (but I guess it should be
 0). Medium-high priority (preferred boost::function syntax depends on it)

With DMC 8.33.3 I now also get a "0" for

  printf("%d\n", is_reference<int &>::value);


bye, Christof

-- 
http://cmeerw.org                                 JID: cmeerw jabber.at
mailto cmeerw at web.de

...and what have you contributed to the Net?

gf <mz_y2k yahoo..com> writes:

Christof Meerwald <cmeerw web.de> wrote in
news:b0h1qp$15qs$1 digitaldaemon.com: 

 On Sun, 19 Jan 2003 12:52:50 +0000 (UTC), Christof Meerwald wrote:
 #include <stdio.h>
 
 template<typename T> struct is_reference
 {
   enum { value = false };
 };
 
 template<typename T> struct is_reference<T&>
 {
   enum { value = true };
 };
 
 int main()
 {
   printf("%d\n", is_reference<int>::value);
   printf("%d\n", is_reference<void (int)>::value);
 }
 
 Compiled with DMC, the output is both times "1" (but I guess it
 should be 0). Medium-high priority (preferred boost::function syntax
 depends on it) 

 
 With DMC 8.33.3 I now also get a "0" for
 
   printf("%d\n", is_reference<int &>::value);
 
 
 bye, Christof


Interesting, 

the output of Borland's C++ builder 5 for the line 
"printf("%d\n", is_reference<int>::value);" is 0 (zero) but it won't 
compile the line "printf("%d\n", is_reference<void (int)>::value);".

I guess the second line is a typo, right?

With "printf("%d\n", is_reference<int &>::value);" Borland's compiler 
will output 1.

/gf