diff options
| -rw-r--r-- | numeric.c | 23 | ||||
| -rw-r--r-- | numeric.rb | 17 |
2 files changed, 17 insertions, 23 deletions
@@ -4269,28 +4269,6 @@ rb_int_idiv(VALUE x, VALUE y) return num_div(x, y); } -/* - * call-seq: - * ceildiv(other) -> integer - * - * Returns the result of division +self+ by +other+. The result is rounded up to the nearest integer. - * - * 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 - */ -VALUE -rb_int_ceildiv(VALUE x, VALUE y) -{ - VALUE tmp = rb_int_idiv(x, num_uminus(y)); - return num_uminus(tmp); -} - static VALUE fix_mod(VALUE x, VALUE y) { @@ -6277,7 +6255,6 @@ Init_Numeric(void) rb_define_method(rb_cInteger, "remainder", int_remainder, 1); rb_define_method(rb_cInteger, "divmod", rb_int_divmod, 1); rb_define_method(rb_cInteger, "fdiv", rb_int_fdiv, 1); - rb_define_method(rb_cInteger, "ceildiv", rb_int_ceildiv, 1); rb_define_method(rb_cInteger, "**", rb_int_pow, 1); rb_define_method(rb_cInteger, "pow", rb_int_powm, -1); /* in bignum.c */ diff --git a/numeric.rb b/numeric.rb index 9f2200d2a8..c2091465f8 100644 --- a/numeric.rb +++ b/numeric.rb @@ -227,6 +227,23 @@ class Integer Primitive.attr! 'inline' Primitive.cexpr! 'rb_int_zero_p(self)' end + + # call-seq: + # ceildiv(other) -> integer + # + # Returns the result of division +self+ by +other+. The result is rounded up to the nearest integer. + # + # 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 + def ceildiv(other) + -div(-other) + end end # call-seq: |