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111
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1 // { dg-do compile { target c++11 } }
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2 // PR c++/50958
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3
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4 typedef decltype(sizeof(0)) size_type;
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5
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6 constexpr size_type
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7 cstrlen_impl(const char* s, size_type i)
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8 {
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9 return s[i] ? cstrlen_impl(s, i + 1) : i;
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10 }
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11
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12 constexpr size_type
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13 cstrlen(const char* s)
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14 {
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15 return s ? cstrlen_impl(s, 0) : throw 0;
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16 }
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17
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18 constexpr size_type
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19 operator "" _lenraw(const char* digits)
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20 {
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21 return cstrlen(digits);
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22 }
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23
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24 static_assert(123_lenraw == 3, "Ouch");
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25 static_assert(1_lenraw == 1, "Ouch");
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26 static_assert(012_lenraw == 3, "Ouch");
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27 static_assert(0_lenraw == 1, "Ouch");
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