*** empty log message ***

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@8949 626c5289-ae23-0410-ae9c-e8d60b6d4f22

CHANGES.current

@@ -1,6 +1,31 @@
 Version 1.3.29 (In progress)
 ============================
 
+03/02/2006: wsfulton
+            [Java]
+            Removed extra (void *) cast when casting pointers to and from jlong as this
+            was suppressing gcc's "dereferencing type-punned pointer will break strict-aliasing rules"
+            warning. This warning could be ignored in versions of gcc prior to 4.0, but now the
+            warning is useful as gcc -O2 and higher optimisation levels includes -fstrict-aliasing which
+            generates code that doesn't work with these casts. The assignment is simply never made.
+            Please use -fno-strict-aliasing to both suppress the warning and fix the bad assembly
+            code generated. Note that the warning is only generated by the C compiler, but not
+            the C++ compiler, yet the C++ compiler will also generate broken code. Alternatively use 
+            -Wno-strict-aliasing to suppress the warning for gcc-3.x. The typemaps affected
+            are the "in" and "out" typemaps in java.swg and arrays_java.swg. Users ought to fix
+            their own typemaps to do the same. Note that removal of the void * cast simply prevents
+            suppression of the warning for the C compiler and nothing else. Typical change:
+
+            From:
+              %typemap(in) SWIGTYPE * %{ $1 = *($&1_ltype)(void *)&$input; %}
+            To:
+              %typemap(in) SWIGTYPE * %{ $1 = *($&1_ltype)&$input; %}
+
+            From:
+              %typemap(out) SWIGTYPE * %{ *($&1_ltype)(void *)&$result = $1; %} 
+            To:
+              %typemap(out) SWIGTYPE * %{ *($&1_ltype)&$result = $1; %} 
+
 03/02/2006: mkoeppe
 	    [Guile -scm]
 	    Add typemaps for "long long"; whether the generated code compiles, however, depends