std.algorithm.sort error with default predicate

Archibald via Digitalmars-d-learn digitalmars-d-learn at puremagic.com
Mon Jul 7 13:10:08 PDT 2014


Using std.algorithm.sort(a,b,c,d,e) I get the error message :

core.exception.AssertError at C:\dmd\windows\bin\..\..\src\phobos\std\algorithm.d(1
0350): Predicate for isSorted is not antisymmetric. Both pred(a, 
b) and pred(b,
a) are true for a=Tuple!(float, int, uint[], int, 
uint[])(-7.56963e-05, 17, [585
105407, 512], 1041, [2732589055, 0]) and b=Tuple!(float, int, 
uint[], int, uint[
])(-7.56963e-05, 17, [2732589055, 0], 1105, [585105407, 512]) in 
positions 25182
  and 25183

I am using the default predicate so is it a bug?


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