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Add quick_sort3 function based on 'QuicksortIsOptimal.pdf' (see comme…
…nts in file). Cleanup the quick_sort function a little, as well. Add test file.
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Original file line number | Diff line number | Diff line change |
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use std; | ||
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fn check_sort(vec[mutable int] v1, vec[mutable int] v2) { | ||
auto len = std::vec::len[int](v1); | ||
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fn lt(&int a, &int b) -> bool { | ||
ret a < b; | ||
} | ||
fn equal(&int a, &int b) -> bool { | ||
ret a == b; | ||
} | ||
auto f1 = lt; | ||
auto f2 = equal; | ||
std::sort::quick_sort3[int](f1, f2, v1); | ||
auto i = 0u; | ||
while (i < len) { | ||
log v2.(i); | ||
assert (v2.(i) == v1.(i)); | ||
i += 1u; | ||
} | ||
} | ||
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fn main() { | ||
{ | ||
auto v1 = [mutable 3,7,4,5,2,9,5,8]; | ||
auto v2 = [mutable 2,3,4,5,5,7,8,9]; | ||
check_sort(v1, v2); | ||
} | ||
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{ | ||
auto v1 = [mutable 1,1,1]; | ||
auto v2 = [mutable 1,1,1]; | ||
check_sort(v1, v2); | ||
} | ||
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{ | ||
let vec[mutable int] v1 = [mutable]; | ||
let vec[mutable int] v2 = [mutable]; | ||
check_sort(v1, v2); | ||
} | ||
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{ | ||
auto v1 = [mutable 9]; | ||
auto v2 = [mutable 9]; | ||
check_sort(v1, v2); | ||
} | ||
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{ | ||
auto v1 = [mutable 9,3,3,3,9]; | ||
auto v2 = [mutable 3,3,3,9,9]; | ||
check_sort(v1, v2); | ||
} | ||
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} | ||
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// Local Variables: | ||
// mode: rust; | ||
// fill-column: 78; | ||
// indent-tabs-mode: nil | ||
// c-basic-offset: 4 | ||
// buffer-file-coding-system: utf-8-unix | ||
// compile-command: "make -k -C .. 2>&1 | sed -e 's/\\/x\\//x:\\//g'"; | ||
// End: | ||
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