[svn-r6269] Purpose:

    Code cleanup

Description:
    Various code cleanups to allow the development branch to be compiled with
    a C++ compiler (i.e. CC=g++ )

Platforms tested:
    Tested h5committest {arabica (fortran), eirene (fortran, C++)
	modi4 (parallel, fortran)}
    FreeBSD 4.7 (sleipnir) C++

8 files changed, 66 insertions, 26 deletions

diff --git a/src/H5Dpublic.h b/src/H5Dpublic.h
index 3e969a3..0035c0a 100644
--- a/src/H5Dpublic.h
+++ b/src/H5Dpublic.h
@@ -62,14 +62,14 @@ typedef enum H5D_fill_value_t {
     H5D_FILL_VALUE_USER_DEFINED =2
 } H5D_fill_value_t;
 
-/* Define the operator function pointer for H5Diterate() */
-typedef herr_t (*H5D_operator_t)(void *elem, hid_t type_id, hsize_t ndim,
-				 hssize_t *point, void *operator_data);
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+/* Define the operator function pointer for H5Diterate() */
+typedef herr_t (*H5D_operator_t)(void *elem, hid_t type_id, hsize_t ndim,
+				 hssize_t *point, void *operator_data);
+
 H5_DLL hid_t H5Dcreate (hid_t file_id, const char *name, hid_t type_id,
 			 hid_t space_id, hid_t plist_id);
 H5_DLL hid_t H5Dopen (hid_t file_id, const char *name);
diff --git a/src/H5Epublic.h b/src/H5Epublic.h
index 607bbf2..c6ab38a 100644
--- a/src/H5Epublic.h
+++ b/src/H5Epublic.h
@@ -39,7 +39,7 @@
  *	    the error reporting won't be properly restored!
  */
 #define H5E_BEGIN_TRY {							      \
-    herr_t (*H5E_saved_efunc)(void*);					      \
+    H5E_auto_t H5E_saved_efunc;						      \
     void *H5E_saved_edata;						      \
     H5Eget_auto (&H5E_saved_efunc, &H5E_saved_edata);			      \
     H5Eset_auto (NULL, NULL);
@@ -225,14 +225,14 @@ typedef enum H5E_direction_t {
     H5E_WALK_DOWNWARD	= 1		/*begin at API function, end deep    */
 } H5E_direction_t;
 
-/* Error stack traversal callback function */
-typedef herr_t (*H5E_walk_t)(int n, H5E_error_t *err_desc, void *client_data);
-typedef herr_t (*H5E_auto_t)(void *client_data);
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+/* Error stack traversal callback function */
+typedef herr_t (*H5E_walk_t)(int n, H5E_error_t *err_desc, void *client_data);
+typedef herr_t (*H5E_auto_t)(void *client_data);
+
 H5_DLL herr_t H5Eset_auto (H5E_auto_t func, void *client_data);
 H5_DLL herr_t H5Eget_auto (H5E_auto_t *func, void **client_data);
 H5_DLL herr_t H5Eclear (void);
diff --git a/src/H5F.c b/src/H5F.c
index 29ce3ac..34c0dc0 100644
--- a/src/H5F.c
+++ b/src/H5F.c
@@ -2916,7 +2916,7 @@ done:
  */
 static herr_t
 H5F_mount(H5G_entry_t *loc, const char *name, H5F_t *child,
-	  const hid_t UNUSED plist_id)
+	  hid_t UNUSED plist_id)
 {
     H5G_t	*mount_point = NULL;	/*mount point group		*/
     H5G_entry_t	*mp_ent = NULL;		/*mount point symbol table entry*/
diff --git a/src/H5P.c b/src/H5P.c
index 895812b..ffbadaf 100644
--- a/src/H5P.c
+++ b/src/H5P.c
@@ -88,7 +88,8 @@ static H5P_genclass_t *H5P_create_class(H5P_genclass_t *par_class,
      H5P_cls_close_func_t cls_close, void *close_data);
 static herr_t H5P_unregister(H5P_genclass_t *pclass, const char *name);
 static H5P_genprop_t *H5P_dup_prop(H5P_genprop_t *oprop, H5P_prop_within_t type);
-static void H5P_free_prop(H5P_genprop_t *prop);
+static herr_t H5P_free_prop(H5P_genprop_t *prop);
+static void H5P_free_prop_void(void *_prop);
 
 
 /*--------------------------------------------------------------------------
@@ -1054,7 +1055,7 @@ done:
  EXAMPLES
  REVISION LOG
 --------------------------------------------------------------------------*/
-static void
+static herr_t
 H5P_free_prop(H5P_genprop_t *prop)
 {
     FUNC_ENTER_NOINIT(H5P_free_prop);
@@ -1071,12 +1072,46 @@ H5P_free_prop(H5P_genprop_t *prop)
 
     H5FL_FREE(H5P_genprop_t,prop);
 
-    FUNC_LEAVE_NOAPI_VOID;
+    FUNC_LEAVE_NOAPI(SUCCEED);
 }   /* H5P_free_prop() */
 
 
 /*--------------------------------------------------------------------------
  NAME
+    H5P_free_prop_void
+ PURPOSE
+    Internal routine to destroy a property node  (Wrapper for compatibility
+    with H5TB_dfree)
+ USAGE
+    void H5P_free_prop(prop)
+        void *prop;    IN: Pointer to property to destroy
+ RETURNS
+    No return value
+ DESCRIPTION
+    Releases all the memory for a property list.  Does _not_ call the
+    properties 'close' callback, that should already have been done.
+ GLOBAL VARIABLES
+ COMMENTS, BUGS, ASSUMPTIONS
+ EXAMPLES
+ REVISION LOG
+--------------------------------------------------------------------------*/
+static void
+H5P_free_prop_void(void *_prop)
+{
+    H5P_genprop_t *prop=(H5P_genprop_t *)_prop;
+
+    FUNC_ENTER_NOINIT(H5P_free_prop_void);
+
+    assert(prop);
+
+    H5P_free_prop(prop);
+
+    FUNC_LEAVE_NOAPI_VOID;
+}   /* H5P_free_prop_void() */
+
+
+/*--------------------------------------------------------------------------
+ NAME
     H5P_free_all_prop
  PURPOSE
     Internal routine to remove all properties from a property TBBT
@@ -5138,7 +5173,7 @@ H5P_close(void *_plist)
     H5TB_dfree(plist->del,free,NULL);
 
     /* Free the property tree itself */
-    H5TB_dfree(plist->props,H5P_free_prop,NULL);
+    H5TB_dfree(plist->props,H5P_free_prop_void,NULL);
 
     /* Destroy property list object */
     H5FL_FREE(H5P_genplist_t,plist);
diff --git a/src/H5Ppublic.h b/src/H5Ppublic.h
index 3ac1029..abe8e63 100644
--- a/src/H5Ppublic.h
+++ b/src/H5Ppublic.h
@@ -50,6 +50,10 @@ typedef hid_t H5P_class_t;      /* Alias H5P_class_t to hid_t */
 #define H5P_DATA_XFER H5P_DATASET_XFER
 #endif /* H5_WANT_H5_V1_4_COMPAT */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Define property list class callback function pointer types */
 typedef herr_t (*H5P_cls_create_func_t)(hid_t prop_id, void *create_data);
 typedef herr_t (*H5P_cls_copy_func_t)(hid_t new_prop_id, hid_t old_prop_id, 
@@ -69,10 +73,6 @@ typedef H5P_prp_cb1_t H5P_prp_close_func_t;
 /* Define property list iteration function type */
 typedef herr_t (*H5P_iterate_t)(hid_t id, const char *name, void *iter_data); 
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 /*
  * The library created property list classes
  *
diff --git a/src/H5Tpublic.h b/src/H5Tpublic.h
index a96d2bb..cd7bc9b 100644
--- a/src/H5Tpublic.h
+++ b/src/H5Tpublic.h
@@ -174,6 +174,10 @@ typedef struct {
 /* Variable Length String information */
 #define H5T_VARIABLE    ((size_t)(-1))  /* Indicate that a string is variable length (null-terminated in C, instead of fixed length) */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* All data type conversion functions are... */
 typedef herr_t (*H5T_conv_t) (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
       hsize_t nelmts, size_t buf_stride, size_t bkg_stride, void *buf,
@@ -192,10 +196,6 @@ typedef herr_t (*H5T_overflow_t)(hid_t src_id, hid_t dst_id,
 				 void *src_buf, void *dst_buf);
 
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 /* When this header is included from H5Tprivate.h, don't make calls to H5open() */
 #undef H5OPEN
 #ifndef _H5Tprivate_H
diff --git a/src/H5Zpublic.h b/src/H5Zpublic.h
index 0b9a0bf..67b1fe9 100644
--- a/src/H5Zpublic.h
+++ b/src/H5Zpublic.h
@@ -31,6 +31,10 @@ typedef int H5Z_filter_t;
 #define H5Z_FLAG_INVMASK	0xff00	/*invocation flag mask		*/
 #define H5Z_FLAG_REVERSE	0x0100	/*reverse direction; read	*/
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * A filter gets definition flags and invocation flags (defined above), the
  * client data array and size defined when the filter was added to the
@@ -50,10 +54,6 @@ typedef size_t (*H5Z_func_t)(unsigned int flags, size_t cd_nelmts,
 			     const unsigned int cd_values[], size_t nbytes,
 			     size_t *buf_size, void **buf);
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 H5_DLL herr_t H5Zregister(H5Z_filter_t id, const char *comment,
 			   H5Z_func_t filter);
 
diff --git a/src/H5private.h b/src/H5private.h
index f479d4b..836e929 100644
--- a/src/H5private.h
+++ b/src/H5private.h
@@ -186,12 +186,17 @@
  * suppresses warnings about unused function arguments.	 It's no big deal if
  * we don't.
  */
+#ifdef __cplusplus
+#   define __attribute__(X)	/*void*/
+#   define UNUSED		/*void*/
+#else /* __cplusplus */
 #ifdef H5_HAVE_ATTRIBUTE
 #   define UNUSED		__attribute__((unused))
 #else
 #   define __attribute__(X)	/*void*/
 #   define UNUSED		/*void*/
 #endif
+#endif /* __cplusplus */
 
 /*
  * Does the compiler expand __FUNCTION__ to be the name of the function