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| author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
|---|---|---|
| committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
| commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
| tree | 10027f336435511475e392454359edea8e25895d /devtools/client/debugger/test/mochitest/code_binary_search.coffee | |
| parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
| download | UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip | |
Add m-esr52 at 52.6.0
Diffstat (limited to 'devtools/client/debugger/test/mochitest/code_binary_search.coffee')
| -rw-r--r-- | devtools/client/debugger/test/mochitest/code_binary_search.coffee | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/devtools/client/debugger/test/mochitest/code_binary_search.coffee b/devtools/client/debugger/test/mochitest/code_binary_search.coffee new file mode 100644 index 000000000..e3dacdaaa --- /dev/null +++ b/devtools/client/debugger/test/mochitest/code_binary_search.coffee @@ -0,0 +1,18 @@ +# Uses a binary search algorithm to locate a value in the specified array. +window.binary_search = (items, value) -> + + start = 0 + stop = items.length - 1 + pivot = Math.floor (start + stop) / 2 + + while items[pivot] isnt value and start < stop + + # Adjust the search area. + stop = pivot - 1 if value < items[pivot] + start = pivot + 1 if value > items[pivot] + + # Recalculate the pivot. + pivot = Math.floor (stop + start) / 2 + + # Make sure we've found the correct value. + if items[pivot] is value then pivot else -1
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