JRuby

Failure in ruby_test Numeric#to_int test

Details

  • Number of attachments :
    0

Description

Loaded suite test/externals/ruby_test/test/core/Numeric/instance/tc_to_int
Started
...F
Finished in 0.094 seconds.

  1) Failure:
test_to_int_twos_complement(TC_Numeric_ToInt_InstanceMethod):1:
<9223372036854775808> expected but was
<9223372036854775807>.

Issue Links

is duplicated by

Bug - A problem which impairs or prevents the functions of the product. JRUBY-1362 Failure in ruby_test Numeric#truncate test

  • Major - Major loss of function.
  • Closed - The issue is considered finished, the resolution is correct. Issues which are not closed can be reopened.

Activity

Ascending order - Click to sort in descending order
Hide
Permalink
Marcin Mielzynski added a comment -

It's not a #truncate issue since that float itself doesn't match MRI.

puts 9223372036854775808.9223372036854775808

MRI:
9.22337203685478e+018

JRuby:
9.223372036854776e+18

Either a parser or a rounding issue.

Show
Marcin Mielzynski added a comment - It's not a #truncate issue since that float itself doesn't match MRI. puts 9223372036854775808.9223372036854775808 MRI: 9.22337203685478e+018 JRuby: 9.223372036854776e+18 Either a parser or a rounding issue.
Hide
Permalink
Sammy Larbi added a comment -

Looks like JRuby takes the double value for RubyFloat and casts it to a long. Java 1.5 exhibits the same behavior:

public class Scratch {
public static void main(String args[])

{ double num = 9223372036854775808.9223372036854775808; System.out.println((long)num); }

}

Running that program gives the following output:

9223372036854775807

Show
Sammy Larbi added a comment - Looks like JRuby takes the double value for RubyFloat and casts it to a long. Java 1.5 exhibits the same behavior: public class Scratch { public static void main(String args[]) { double num = 9223372036854775808.9223372036854775808; System.out.println((long)num); } } Running that program gives the following output: 9223372036854775807
Hide
Permalink
Vladimir Sizikov added a comment -

Resolved in rev. r5835 on trunk.

Show
Vladimir Sizikov added a comment - Resolved in rev. r5835 on trunk.

People

  • Assignee:
    Vladimir Sizikov
    Reporter:
    Charles Oliver Nutter
Vote (0)
Watch (2)

Dates

  • Created:
    Updated:
    Resolved: