• matovitch (7/7) Mar 30 2015 Hi again again,
• Vladimir Panteleev (4/11) Mar 30 2015 ulong, yes, but 1 is of type int.
• matovitch (3/19) Mar 30 2015 Arf ! Safety. Danke !
• Brian Schott (4/11) Mar 30 2015 The problem is that `1` isn't a ulong. The reason for this is
• bearophile (7/9) Mar 30 2015 I suggest a more explicit:

"matovitch" <camille.brugel laposte.net> writes:

Hi again again,

ulong u = 1 << 63;

Raise :

Error: shift by 63 is outside the range 0..31

This is a bug isn't it, the ulong are supposed to be on 64 bits ? 
I guess it's time I go to bed.

Have a nice night !

"Vladimir Panteleev" <vladimir thecybershadow.net> writes:

On Monday, 30 March 2015 at 22:34:00 UTC, matovitch wrote:
 Hi again again,

 ulong u = 1 << 63;

 Raise :

 Error: shift by 63 is outside the range 0..31

 This is a bug isn't it, the ulong are supposed to be on 64 bits 
 ? I guess it's time I go to bed.

 Have a nice night !

ulong, yes, but 1 is of type int.

Correct code:

ulong u = 1L << 63;

"matovitch" <camille.brugel laposte.net> writes:

On Monday, 30 March 2015 at 22:34:55 UTC, Vladimir Panteleev 
wrote:
 On Monday, 30 March 2015 at 22:34:00 UTC, matovitch wrote:
 Hi again again,

 ulong u = 1 << 63;

 Raise :

 Error: shift by 63 is outside the range 0..31

 This is a bug isn't it, the ulong are supposed to be on 64 
 bits ? I guess it's time I go to bed.

 Have a nice night !

 ulong, yes, but 1 is of type int.

 Correct code:

 ulong u = 1L << 63;

Arf ! Safety. Danke !

"Brian Schott" <briancschott gmail.com> writes:

On Monday, 30 March 2015 at 22:34:00 UTC, matovitch wrote:
 Hi again again,

 ulong u = 1 << 63;

 Raise :

 Error: shift by 63 is outside the range 0..31

 This is a bug isn't it, the ulong are supposed to be on 64 bits 
 ? I guess it's time I go to bed.

 Have a nice night !

The problem is that `1` isn't a ulong. The reason for this is 
probably C compatibility. Do this instead:

ulong u = 1L << 63;

"bearophile" <bearophileHUGS lycos.com> writes:

Brian Schott:

 Do this instead:

 ulong u = 1L << 63;

I suggest a more explicit:

ulong u = 1UL << 63;

Alternative:

ulong u = 2UL ^^ 63;

Bye,
bearophile