7 lines
218 B
Plaintext
7 lines
218 B
Plaintext
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// Expect 1 error
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// Straightforward mutual recursion (not allowed)
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bool is_even(int n);
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bool is_odd (int n) { return n == 0 ? false : is_even(n - 1); }
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bool is_even(int n) { return n == 0 ? true : is_odd (n - 1); }
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