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Fix markup in linear_search and binary_search docs
This commit is contained in:
+77
-45
@@ -97,12 +97,32 @@ contains :: proc(array: $T/[]$E, value: E) -> bool where intrinsics.type_is_comp
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}
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}
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/*
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/*
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Searches the given element in the given slice in O(n) time.
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Searches the given slice for the given element in O(n) time.
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Returns the first index at which the given element can be found in the slice,
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If you need a custom search condition, see `linear_search_proc`
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or -1 if it is not present.
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If you need a custom compare procedure, see `linear_search_proc`
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Inputs:
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- array: The slice to search in.
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- key: The element to search for.
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Returns:
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- index: The index `i`, such that `array[i]` is the first occurrence of `key` in `array`, or -1 if `key` is not present in `array`.
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Example:
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index: int
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found: bool
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a := []i32{10, 10, 10, 20}
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index, found = linear_search_reverse(a, 10)
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assert(index == 0 && found == true)
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index, found = linear_search_reverse(a, 30)
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assert(index == -1 && found == false)
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// Note that `index == 1`, since it is relative to `a[2:]`
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index, found = linear_search_reverse(a[2:], 20)
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assert(index == 1 && found == true)
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*/
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*/
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@(require_results)
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@(require_results)
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linear_search :: proc(array: $A/[]$T, key: T) -> (index: int, found: bool)
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linear_search :: proc(array: $A/[]$T, key: T) -> (index: int, found: bool)
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@@ -116,10 +136,14 @@ linear_search :: proc(array: $A/[]$T, key: T) -> (index: int, found: bool)
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}
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}
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/*
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/*
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Searches the given element in the given slice in O(n) time, using the given predicate.
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Searches the given slice for the first element satisfying predicate `f` in O(n) time.
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Returns the first index at which the given element can be found in the slice,
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Inputs:
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or -1 if it is not present.
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- array: The slice to search in.
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- f: The search condition.
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Returns:
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- index: The index `i`, such that `array[i]` is the first `x` in `array` for which `f(x) == true`, or -1 if such `x` does not exist.
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*/
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*/
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@(require_results)
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@(require_results)
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linear_search_proc :: proc(array: $A/[]$T, f: proc(T) -> bool) -> (index: int, found: bool) {
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linear_search_proc :: proc(array: $A/[]$T, f: proc(T) -> bool) -> (index: int, found: bool) {
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@@ -132,31 +156,36 @@ linear_search_proc :: proc(array: $A/[]$T, f: proc(T) -> bool) -> (index: int, f
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}
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}
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/*
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/*
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Reverse linear search searches the given element in the given slice in O(n) time,
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Searches the given slice for the given element in O(n) time, starting from the
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starting from the slice end.
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slice end.
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Returns the last index at which the given element can be found in the slice,
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If you need a custom search condition, see `linear_search_reverse_proc`
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or -1 if it is not present
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# Examples
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Inputs:
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- array: The slice to search in.
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- key: The element to search for.
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```
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Returns:
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- index: The index `i`, such that `array[i]` is the last occurrence of `key` in `array`, or -1 if `key` is not present in `array`.
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Example:
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index: int
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index: int
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found: bool
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found: bool
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a := []i32{1, 1, 1, 2}
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a := []i32{10, 10, 10, 20}
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index, found = linear_search_reverse(a, 2)
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index, found = linear_search_reverse(a, 20)
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assert(index == 3 && found == true)
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assert(index == 3 && found == true)
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index, found = linear_search_reverse(a, 1)
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index, found = linear_search_reverse(a, 10)
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assert(index == 2 && found == true)
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assert(index == 2 && found == true)
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index, found = linear_search_reverse(a, 0)
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index, found = linear_search_reverse(a, 30)
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assert(index == -1 && found == false)
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assert(index == -1 && found == false)
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```
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If you need a custom compare procedure, see `linear_search_reverse_proc`
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// Note that `index == 1`, since it is relative to `a[2:]`
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index, found = linear_search_reverse(a[2:], 20)
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assert(index == 1 && found == true)
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*/
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*/
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@(require_results)
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@(require_results)
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linear_search_reverse :: proc(array: $A/[]$T, key: T) -> (index: int, found: bool)
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linear_search_reverse :: proc(array: $A/[]$T, key: T) -> (index: int, found: bool)
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@@ -170,11 +199,15 @@ linear_search_reverse :: proc(array: $A/[]$T, key: T) -> (index: int, found: boo
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}
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}
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/*
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/*
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Searches the given element in the given slice in O(n) time, starting from the end of
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Searches the given slice for the last element satisfying predicate `f` in O(n)
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the slice and using the given predicate.
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time, starting from the slice end.
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Returns the last index at which the given element can be found in the slice,
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Inputs:
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or -1 if it is not present
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- array: The slice to search in.
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- f: The search condition.
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Returns:
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- index: The index `i`, such that `array[i]` is the last `x` in `array` for which `f(x) == true`, or -1 if such `x` does not exist.
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*/
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*/
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@(require_results)
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@(require_results)
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linear_search_reverse_proc :: proc(array: $A/[]$T, f: proc(T) -> bool) -> (index: int, found: bool) {
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linear_search_reverse_proc :: proc(array: $A/[]$T, f: proc(T) -> bool) -> (index: int, found: bool) {
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@@ -187,22 +220,24 @@ linear_search_reverse_proc :: proc(array: $A/[]$T, f: proc(T) -> bool) -> (index
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}
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}
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/*
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/*
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Binary search searches the given slice for the given element.
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Searches the given slice for the given element.
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If the slice is not sorted, the returned index is unspecified and meaningless.
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If the slice is not sorted, the returned index is unspecified and meaningless.
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If the value is found then the returned int is the index of the matching element.
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If the value is found then the returned int is the index of the matching element.
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If there are multiple matches, then any one of the matches could be returned.
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If there are multiple matches, then any one of the matches could be returned.
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If the value is not found then the returned int is the index where a matching
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If the value is not found then the returned int is the index where a matching
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element could be inserted while maintaining sorted order.
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element could be inserted while maintaining sorted order.
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# Examples
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For slices of more complex types see: `binary_search_by`
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Example:
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/*
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Looks up a series of four elements. The first is found, with a
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Looks up a series of four elements. The first is found, with a
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uniquely determined position; the second and third are not
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uniquely determined position; the second and third are not
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found; the fourth could match any position in `[1, 4]`.
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found; the fourth could match any position in `[1, 4]`.
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*/
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```
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index: int
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index: int
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found: bool
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found: bool
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@@ -219,9 +254,6 @@ linear_search_reverse_proc :: proc(array: $A/[]$T, f: proc(T) -> bool) -> (index
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index, found = slice.binary_search(s, 1)
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index, found = slice.binary_search(s, 1)
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assert(index >= 1 && index <= 4 && found == true)
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assert(index >= 1 && index <= 4 && found == true)
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```
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For slices of more complex types see: binary_search_by
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*/
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*/
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@(require_results)
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@(require_results)
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binary_search :: proc(array: $A/[]$T, key: T) -> (index: int, found: bool)
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binary_search :: proc(array: $A/[]$T, key: T) -> (index: int, found: bool)
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@@ -230,21 +262,21 @@ binary_search :: proc(array: $A/[]$T, key: T) -> (index: int, found: bool)
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}
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}
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/*
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/*
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Binary search searches the given slice for the given element.
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Searches the given slice for the given element.
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If the slice is not sorted, the returned index is unspecified and meaningless.
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If the slice is not sorted, the returned index is unspecified and meaningless.
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If the value is found then the returned int is the index of the matching element.
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If the value is found then the returned int is the index of the matching element.
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If there are multiple matches, then any one of the matches could be returned.
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If there are multiple matches, then any one of the matches could be returned.
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If the value is not found then the returned int is the index where a matching
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If the value is not found then the returned int is the index where a matching
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element could be inserted while maintaining sorted order.
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element could be inserted while maintaining sorted order.
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The array elements and key may be different types. This allows the filter procedure
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The array elements and key may be different types. This allows the filter procedure
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to compare keys against a slice of structs, one struct value at a time.
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to compare keys against a slice of structs, one struct value at a time.
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Returns:
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Returns:
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index: int
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- index: int
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found: bool
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- found: bool
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*/
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*/
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@(require_results)
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@(require_results)
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