[Sablevm-bugs] [ sablevm-Bugs-753040 ] f2i with large integers

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Bugs item #753040, was opened at 2003-06-11 22:58
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105523&aid=753040&group_id=5523

Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: David Bélanger (davidbelanger)
Assigned to: Nobody/Anonymous (nobody)
Summary: f2i with large integers

Initial Comment:

Converting a float that has a value larger than the
largest int to an int does not always give the largest
int as specified in the specification.

public class BugF2I {

  public static int f2i(float v) {
    return (int) v;
  }

  public static void main(String[] args) {
    System.out.println(Integer.MAX_VALUE);
    System.out.println(f2i(Integer.MAX_VALUE + 1.0f));
    System.out.println((int) 7777779123.32f);
    System.out.println(f2i(7777779123.32f));
  }

}

Note: Compiled with jikes on ppc and with javac on x86.

jikes / sablevm / ppc
2147483647
2147483647
-812155392
2147483647

jikes / sablevm / x86
2147483647
-2147483648
-812155392
-2147483648

jikes / java / x86
2147483647
2147483647
-812155392
2147483647

javac / java / x86
2147483647
2147483647
2147483647
2147483647

javac / sablevm / x86
2147483647
-2147483648
2147483647
-2147483648

javac / sablevm / ppc
2147483647
2147483647
2147483647
2147483647


David

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105523&aid=753040&group_id=5523