http://d.puremagic.com/issues/show_bug.cgi?id=11320

           Summary: std.math.fmod, round, trunc are not yet pure
           Product: D
           Version: D2
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Keywords: rejects-valid
          Severity: enhancement
          Priority: P2
         Component: Phobos
        AssignedTo: nobody@puremagic.com
        ReportedBy: bearophile_hugs@eml.cc


--- Comment #0 from bearophile_hugs@eml.cc 2013-10-21 17:43:25 PDT ---
void main() pure {
    import std.math: fmod, round, trunc;
    auto r1 = fmod(5.1, 1.5);
    auto r2 = round(5.1);
    auto r3 = trunc(5.1);
}


dmd 2.064beta2 gives:

test.d(3): Error: pure function 'D main' cannot call impure function
'std.math.fmod'
test.d(4): Error: pure function 'D main' cannot call impure function
'std.math.round'
test.d(5): Error: pure function 'D main' cannot call impure function
'std.math.trunc'

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