• cal (4/4) Aug 24 2012 I saw something on the forum not too long ago about statically
• Timon Gehr (2/6) Aug 24 2012 if(__ctfe)
• cal (2/11) Aug 24 2012 Oh i was using it with static if which didn't work, thanks!
• Philippe Sigaud (3/15) Aug 25 2012 Same here. I use it rarely, and every time, I first type 'static if
• Minas Mina (2/2) Aug 25 2012 Why is it "if( __ctfe )" and not
• Philippe Sigaud (4/6) Aug 25 2012 I guess because __ctfe *must* be a runtime value: its value changes at
• Timon Gehr (3/5) Aug 25 2012 Both branches need to be compiled in order to have both a ctfe and a
• bearophile (6/10) Aug 24 2012 It's named __ctfe, but unfortunately it's an (immutable) run-time
• Timon Gehr (2/12) Aug 24 2012 Which is basically guaranteed to be performed.

"cal" <callumenator gmail.com> writes:

I saw something on the forum not too long ago about statically 
checking to see if the current function is being executed at 
compile time, but can't seem to find it now. Can it be done? 
(Like static if (__ctfe__) or something)

Timon Gehr <timon.gehr gmx.ch> writes:

On 08/25/2012 02:06 AM, cal wrote:
 I saw something on the forum not too long ago about statically checking
 to see if the current function is being executed at compile time, but
 can't seem to find it now. Can it be done? (Like static if (__ctfe__) or
 something)

if(__ctfe)

"cal" <callumenator gmail.com> writes:

On Saturday, 25 August 2012 at 00:13:44 UTC, Timon Gehr wrote:
 On 08/25/2012 02:06 AM, cal wrote:
 I saw something on the forum not too long ago about statically 
 checking
 to see if the current function is being executed at compile 
 time, but
 can't seem to find it now. Can it be done? (Like static if 
 (__ctfe__) or
 something)

 if(__ctfe)

Oh i was using it with static if which didn't work, thanks!

Philippe Sigaud <philippe.sigaud gmail.com> writes:

On Sat, Aug 25, 2012 at 2:20 AM, cal <callumenator gmail.com> wrote:
 On Saturday, 25 August 2012 at 00:13:44 UTC, Timon Gehr wrote:
 On 08/25/2012 02:06 AM, cal wrote:
 I saw something on the forum not too long ago about statically checking
 to see if the current function is being executed at compile time, but
 can't seem to find it now. Can it be done? (Like static if (__ctfe__) or
 something)


 if(__ctfe)


 Oh i was using it with static if which didn't work, thanks!

Same here. I use it rarely, and every time, I first type 'static if
(__ctfe) {...'

"Minas Mina" <minas_mina1990 hotmail.co.uk> writes:

Why is it "if( __ctfe )" and not
static if.. ?

Philippe Sigaud <philippe.sigaud gmail.com> writes:

On Sat, Aug 25, 2012 at 12:53 PM, Minas Mina
<minas_mina1990 hotmail.co.uk> wrote:
 Why is it "if( __ctfe )" and not
 static if.. ?

I guess because __ctfe *must* be a runtime value: its value changes at
runtime. And, as 'static if' cannot act on a runtime value...

Timon Gehr <timon.gehr gmx.ch> writes:

On 08/25/2012 12:53 PM, Minas Mina wrote:
 Why is it "if( __ctfe )" and not
 static if.. ?

Both branches need to be compiled in order to have both a ctfe and a
runtime version.

"bearophile" <bearophileHUGS lycos.com> writes:

cal:

 I saw something on the forum not too long ago about statically 
 checking to see if the current function is being executed at 
 compile time, but can't seem to find it now. Can it be done? 
 (Like static if (__ctfe__) or something)

It's named __ctfe, but unfortunately it's an (immutable) run-time 
value. When you use it you rely on the dead code elimination 
optimization done by the compiler.

Bye,
bearophile

Timon Gehr <timon.gehr gmx.ch> writes:

On 08/25/2012 02:15 AM, bearophile wrote:
 cal:

 I saw something on the forum not too long ago about statically
 checking to see if the current function is being executed at compile
 time, but can't seem to find it now. Can it be done? (Like static if
 (__ctfe__) or something)

 It's named __ctfe, but unfortunately it's an (immutable) run-time value.
 When you use it you rely on the dead code elimination optimization done
 by the compiler.

 Bye,
 bearophile

Which is basically guaranteed to be performed.