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| author | Jeff Sturm <jeff.sturm@appnet.com> | 2000-09-06 22:25:56 +0000 |
|---|---|---|
| committer | Tom Tromey <tromey@gcc.gnu.org> | 2000-09-06 22:25:56 +0000 |
| commit | 26aa75bef97454f65b437067cf77a5a0255934a3 (patch) | |
| tree | b99aa2a4bfca0a67e9f3c93722a69f549c244c8a /libjava | |
| parent | 9579ea7efd6705df231ba165da90c73dcb43d4cb (diff) | |
| download | gcc-26aa75bef97454f65b437067cf77a5a0255934a3.zip gcc-26aa75bef97454f65b437067cf77a5a0255934a3.tar.gz gcc-26aa75bef97454f65b437067cf77a5a0255934a3.tar.bz2 | |
jvm.h (_Jv_HashCode): Cast object ptr to `unsigned long' to avoid long long division.
2000-09-06 Jeff Sturm <jeff.sturm@appnet.com>
* include/jvm.h (_Jv_HashCode): Cast object ptr to `unsigned long'
to avoid long long division.
From-SVN: r36215
Diffstat (limited to 'libjava')
| -rw-r--r-- | libjava/ChangeLog | 5 | ||||
| -rw-r--r-- | libjava/include/jvm.h | 5 |
2 files changed, 8 insertions, 2 deletions
diff --git a/libjava/ChangeLog b/libjava/ChangeLog index 66bec43..a7fa378 100644 --- a/libjava/ChangeLog +++ b/libjava/ChangeLog @@ -1,3 +1,8 @@ +2000-09-06 Jeff Sturm <jeff.sturm@appnet.com> + + * include/jvm.h (_Jv_HashCode): Cast object ptr to `unsigned long' + to avoid long long division. + 2000-09-06 Tom Tromey <tromey@cygnus.com> * java/lang/reflect/Constructor.java (toString): Use `getName' for diff --git a/libjava/include/jvm.h b/libjava/include/jvm.h index 6517885..e6e6fa6 100644 --- a/libjava/include/jvm.h +++ b/libjava/include/jvm.h @@ -164,8 +164,9 @@ inline jint _Jv_HashCode (jobject obj) { // This was chosen to yield relatively well distributed results on - // both 32- and 64-bit architectures. - return (jint) ((unsigned long long) obj % 0x7fffffff); + // both 32- and 64-bit architectures. Note 0x7fffffff is prime. + // FIXME: we assume sizeof(long) == sizeof(void *). + return (jint) ((unsigned long) obj % 0x7fffffff); } // Return a raw pointer to the elements of an array given the array |