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instance method · added in Ruby 3.2

Integer#ceildiv

(::Numeric other) -> ::Integer

ceildiv(numeric) → integer

# File tmp/rubies/ruby-4.1.0-preview1/numeric.rb, line 308
def ceildiv(other)
  -div(0 - other)
end

Returns the result of division self by numeric. rounded up to the nearest integer.

Example

3.ceildiv(3)   # => 1
4.ceildiv(3)   # => 2

4.ceildiv(-3)  # => -1
-4.ceildiv(3)  # => -1
-4.ceildiv(-3) # => 2

3.ceildiv(1.2) # => 3

Ruby version changes

See also #ceil #chr #bit_length #coerce also in 4.0 · 3.4 · 3.3 · 3.2