• Enjoys Math (3/3) Feb 10 2016 If I just type out sqrt(2.0) in D, is that automatically made
• crimaniak (12/15) Feb 11 2016 for DMD -O :
• Johannes Pfau (4/7) Feb 11 2016 For GDC the answer is yes:

Enjoys Math <enjoysmath gmail.com> writes:

If I just type out sqrt(2.0) in D, is that automatically made 
into a constant for me?

Thanks.

crimaniak <crimaniak gmail.com> writes:

On Thursday, 11 February 2016 at 07:41:55 UTC, Enjoys Math wrote:
 If I just type out sqrt(2.0) in D, is that automatically made 
 into a constant for me?

 Thanks.

for DMD -O :

import std.math;

immutable foo = sqrt(2.0);

pure float precalculated()
{
     return foo;
}

pure float not_precalculated()
{
     return sqrt(2.0);
}

Johannes Pfau <nospam example.com> writes:

On Thursday, 11 February 2016 at 07:41:55 UTC, Enjoys Math wrote:
 If I just type out sqrt(2.0) in D, is that automatically made 
 into a constant for me?

 Thanks.

For GDC the answer is yes:


LDC will probably optimize this as well. Not sure about DMD.