• Jack Applegame (2/8) Feb 14 2015 What do you think about it?
• Gary Willoughby (7/15) Feb 14 2015 I wrote a similar function here:
• Jack Applegame (3/8) Feb 14 2015 Very interesting. Thanks.
• Ivan Kazmenko (3/3) Feb 14 2015 There is an approxEqual in std.math, in addition in feqrel:

"Jack Applegame" <japplegame gmail.com> writes:

I wrote this function for comparing two floating point values:

 import std.math;
 import std.traits;
 
 bool isEqual(T)(T v1, T v2) if(isFloatingPoint!T) {
   return T.mant_dig - feqrel(v1, v2) < 2;
 }

What do you think about it?

"Gary Willoughby" <dev nomad.so> writes:

On Saturday, 14 February 2015 at 09:37:05 UTC, Jack Applegame 
wrote:
 I wrote this function for comparing two floating point values:

 import std.math;
 import std.traits;
 
 bool isEqual(T)(T v1, T v2) if(isFloatingPoint!T) {
  return T.mant_dig - feqrel(v1, v2) < 2;
 }

 What do you think about it?

I wrote a similar function here:

https://github.com/nomad-software/dunit/blob/master/source/dunit/toolkit.d#L42

or using an epsilon value:

https://github.com/nomad-software/dunit/blob/master/source/dunit/toolkit.d#L134

I don't know if they are useful to you?

"Jack Applegame" <japplegame gmail.com> writes:

On Saturday, 14 February 2015 at 10:23:48 UTC, Gary Willoughby 
wrote:
 I wrote a similar function here:

 https://github.com/nomad-software/dunit/blob/master/source/dunit/toolkit.d#L42

 or using an epsilon value:

 https://github.com/nomad-software/dunit/blob/master/source/dunit/toolkit.d#L134

 I don't know if they are useful to you?

Very interesting. Thanks.

"Ivan Kazmenko" <gassa mail.ru> writes:

There is an approxEqual in std.math, in addition in feqrel:



It takes maximum absolute and relative difference as arguments.