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38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
module sort_test @test;
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import std::sort;
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struct BinarySearchTest
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{
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int[] data;
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int x;
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int index;
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}
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fn void binarysearch()
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{
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BinarySearchTest[] tcases = {
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{ {}, 0, 0 },
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{ {1, 2, 3}, 1, 0 },
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{ {1, 2, 3}, 2, 1 },
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{ {1, 2, 3}, 3, 2 },
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{ {1, 2, 3}, 4, 3 },
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{ {10, 20, 30}, 14, 1 },
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{ {10, 20, 30}, 26, 2 },
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};
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foreach (tc : tcases)
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{
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usz idx = sort::binarysearch(tc.data, tc.x);
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assert(idx == tc.index, "%s: got %d; want %d", tc.data, idx, tc.index);
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usz cmp_idx = sort::binarysearch_with(tc.data, tc.x, &sort::cmp_int_ref);
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assert(cmp_idx == tc.index, "%s: got %d; want %d", tc.data, cmp_idx, tc.index);
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usz cmp_idx2 = sort::binarysearch_with(tc.data, tc.x, &sort::cmp_int_value);
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assert(cmp_idx2 == tc.index, "%s: got %d; want %d", tc.data, cmp_idx2, tc.index);
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usz cmp_idx3 = sort::binarysearch_with(tc.data, tc.x, fn int(int a, int b) => a - b);
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assert(cmp_idx3 == tc.index, "%s: got %d; want %d", tc.data, cmp_idx2, tc.index);
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}
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} |