Sha256: 872158270a35047f89d4d8aeb25c91b06f5ca84b3ddcbc4e4d69b15122a65ff8
Contents?: true
Size: 696 Bytes
Versions: 5
Compression:
Stored size: 696 Bytes
Contents
class Array
def bsearch
return to_enum(__method__) unless block_given?
from = 0
to = size - 1
satisfied = nil
while from <= to do
midpoint = (from + to).div(2)
result = yield(cur = self[midpoint])
case result
when Numeric
return cur if result == 0
result = result < 0
when true
satisfied = cur
when nil, false
# nothing to do
else
raise TypeError, "wrong argument type #{result.class} (must be numeric, true, false or nil)"
end
if result
to = midpoint - 1
else
from = midpoint + 1
end
end
satisfied
end unless method_defined? :bsearch
end
Version data entries
5 entries across 5 versions & 1 rubygems