This method is deprecated or moved on the latest stable version.
The last existing version (v1_9_3_392) is shown here.
next_to(n)
public
returns the least odd prime number which is greater than n.
# File lib/prime.rb, line 441
def next_to(n)
n = (n-1).div(2)*2+3 # the next odd number to given n
table_index, integer_index, bit_index = indices(n)
loop do
extend_table until @tables.length > table_index
for j in integer_index...ENTRIES_PER_TABLE
if !@tables[table_index][j].zero?
for k in bit_index...BITS_PER_ENTRY
return NUMS_PER_TABLE*table_index + NUMS_PER_ENTRY*j + 2*k+1 if !@tables[table_index][j][k].zero?
end
end
bit_index = 0
end
table_index += 1; integer_index = 0
end
end
