https://issues.dlang.org/show_bug.cgi?id=12805

          Issue ID: 12805
           Summary: @nogc std.range.iota(FP)
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Keywords: rejects-valid
          Severity: enhancement
          Priority: P1
         Component: Phobos
          Assignee: nobody@puremagic.com
          Reporter: bearophile_hugs@eml.cc

void main() @nogc {
    import std.range: iota;
    foreach (x; iota(5.0)) {}
}


test.d(3,21): Error: @nogc function 'D main' cannot call non-@nogc function 'std.range.iota!double.iota'

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