[cp-patches] Cleanup: const correctnes in native code

[Stefan Huehner]

Remove some casts which discard the const from strings when not needed.
Found by compiling with -Wwrite-strings and -Wcast-qual

2008-01-09  Stefan Huehner <stefan at huehner.org>                              
    

        native/jni/java-io/java_io_VMObjectStreamClass.c,
        native/jni/java-lang/java_lang_VMDouble.c,
        native/jni/java-net/java_net_VMInetAddress.c:
        don't discard const by casting (const char *) to
        (char *) when it's not needed.

Index: native/jni/java-io/java_io_VMObjectStreamClass.c
===================================================================
RCS file: /sources/classpath/classpath/native/jni/java-io/java_io_VMObjectStreamClass.c,v
retrieving revision 1.13
diff -u -r1.13 java_io_VMObjectStreamClass.c
--- native/jni/java-io/java_io_VMObjectStreamClass.c	25 Jan 2006 10:40:12 -0000	1.13
+++ native/jni/java-io/java_io_VMObjectStreamClass.c	9 Jan 2008 20:46:46 -0000
@@ -175,7 +175,7 @@
        * If it isn't an array class then the actual field type descriptor
        * starts with 'L', ends with ';' and has '/' instead of '.'.
        */
-      type_len = strlen ((char *) type_name);
+      type_len = strlen (type_name);
       if (type_name[0] != '[')
 	{
 	  /* XXX - FIXME - should not use dynamic allocation in core lib. */
Index: native/jni/java-lang/java_lang_VMDouble.c
===================================================================
RCS file: /sources/classpath/classpath/native/jni/java-lang/java_lang_VMDouble.c,v
retrieving revision 1.17
diff -u -r1.17 java_lang_VMDouble.c
--- native/jni/java-lang/java_lang_VMDouble.c	5 Apr 2007 12:41:34 -0000	1.17
+++ native/jni/java-lang/java_lang_VMDouble.c	9 Jan 2008 20:46:47 -0000
@@ -468,7 +468,7 @@
       return val;
     }
 
-  buf = (char *) (*env)->GetStringUTFChars (env, str, &isCopy);
+  buf = (*env)->GetStringUTFChars (env, str, &isCopy);
   if (buf == NULL)
     {
       /* OutOfMemoryError already thrown */
Index: native/jni/java-net/java_net_VMInetAddress.c
===================================================================
RCS file: /sources/classpath/classpath/native/jni/java-net/java_net_VMInetAddress.c,v
retrieving revision 1.10
diff -u -r1.10 java_net_VMInetAddress.c
--- native/jni/java-net/java_net_VMInetAddress.c	25 Jun 2007 00:05:33 -0000	1.10
+++ native/jni/java-net/java_net_VMInetAddress.c	9 Jan 2008 20:46:47 -0000
@@ -225,7 +225,7 @@
   result = cpnet_getHostByName (env, hostname, &addresses, &addresses_count);
   if (result != CPNATIVE_OK || addresses_count == 0)
     {
-      JCL_ThrowException (env, UNKNOWN_HOST_EXCEPTION, (char *) hostname);
+      JCL_ThrowException (env, UNKNOWN_HOST_EXCEPTION, hostname);
       return (jobjectArray) NULL;
     }
   (*env)->ReleaseStringUTFChars (env, host, hostname);