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  1. JDK
  2. JDK-4015277

java.lang.Bignum.integerDivide(), remainder() methods work wrong

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    • Subcomponent:
    • Resolved In Build:
      1.1
    • CPU:
      sparc
    • OS:
      solaris_2.5
    • Verification:
      Not verified

      Description

      These methods work wrong with negative or non-integral parameters.
      ==== Here is the minimized test demonstrating the bug ====
      import java.lang.Bignum;
      class java_lang_Bignum_integerDivide {
        public static void main(String args[]) {
           Bignum b1=new Bignum("35.12");
           Bignum b2=new Bignum("5");
           System.out.println(b1.integerDivide(b2)[0]); // should print 7
           System.out.println(b1.integerDivide(b2)[1]); // should print 0.12
           System.out.println(b1.remainder(b2)); // should print 0.12

           b1=new Bignum("-35");
           b2=new Bignum("5");
           System.out.println(b1.integerDivide(b2)[0]); // should print -7
           System.out.println(b1.integerDivide(b2)[1]); // should print 0
           System.out.println(b1.remainder(b2)); // should print 0

        }
      }
      ===== Here is the output of the test =====
      7
      .02
      .02
      0
      -35
      -35

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            Assignee:
            mhapnersunw Mark Hapner (Inactive)
            Reporter:
            mgorshen Mikhail Gorshenev (Inactive)
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