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16 lines
511 B
D
16 lines
511 B
D
// https://issues.dlang.org/show_bug.cgi?id=22133
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struct Slice
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{
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bool empty() const;
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int front() const;
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void popFront()() // note: requires a mutable Slice
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{}
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}
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enum isInputRange1(R) = is(typeof((R r) => r.popFront));
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enum isInputRange2(R) = __traits(compiles, (R r) => r.popFront);
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static assert(isInputRange1!( Slice) == true);
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static assert(isInputRange1!(const Slice) == false);
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static assert(isInputRange2!( Slice) == true);
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static assert(isInputRange2!(const Slice) == false);
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