RE: [Dev-C++] Can I handle 64 bits with unsigned long long int ?

[Ioannis V. <iv...@at...>]

> -----Original Message-----
> From: dev...@li... 
> [mailto:dev...@li...] On Behalf 
> Of Daniel K. O.
> Sent: Sunday, April 06, 2003 8:05 PM
> To: 'Dev-C++ -Users-List'
> Subject: RES: [Dev-C++] Can I handle 64 bits with unsigned 
> long long int ?
> 
> 
> 
> 
> 
> 
> 
>  >  Of course it does. In fact I compiled that code with:
>  >
>  >
>  >  C:\c>gcc temp.c -o temp
>  >
>  >  C:\c>temp
>  >  Maximum value of unsigned long long: 4294967295
>  >
> 
> 
> But it should be 18446744073709551615 (2^64 - 1).
> What I mean is that the %llu doesn't handle the 64-bit 
> integer, only the
> first word.


Obviously MINGW's unsigned long long isn't 64 bit or there is serious
compiler bug. An equivalent code:

#include <stdio.h>


int main(void)
{
  printf ("Maximum value of unsigned long long: %llu\n", (unsigned long
long)-1);

  getchar();

}


It still produces:

C:\c>temp
Maximum value of unsigned long long: 4294967295




Ioannis Vranos
 
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