[svn-r18634] Description:

	Clean up compiler warnings.

Tested on:
        FreeBSD/32 6.3 (duty) in debug mode
        FreeBSD/64 6.3 (liberty) w/C++ & FORTRAN, in debug mode
        Linux/32 2.6 (jam) w/PGI compilers, w/default API=1.8.x,
                w/C++ & FORTRAN, w/threadsafe, in debug mode
        Linux/64-amd64 2.6 (amani) w/Intel compilers, w/default API=1.6.x,
                w/C++ & FORTRAN, in production mode
        Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN,
                w/szip filter, in production mode
        Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN,
                in production mode
        Linux/64-ia64 2.4 (tg-login3) w/parallel, w/FORTRAN, in debug mode
        Linux/64-amd64 2.6 (abe) w/parallel, w/FORTRAN, in production mode
        Mac OS X/32 10.6.3 (amazon) in debug mode
        Mac OS X/32 10.6.3 (amazon) w/C++ & FORTRAN, w/threadsafe,
                in production mode

1 files changed, 291 insertions, 0 deletions

diff --git a/src/H5overflow.h b/src/H5overflow.h
index b3b343e..f4064f4 100644
--- a/src/H5overflow.h
+++ b/src/H5overflow.h
@@ -87,6 +87,18 @@
         ASSIGN_TO_SAME_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
 #endif /* src: unsigned dst: uint64_t */
 
+/* src: unsigned, dst: ptrdiff_t */
+#if H5_SIZEOF_UNSIGNED < H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_unsigned_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_UNSIGNED > H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_unsigned_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_UNSIGNED == H5_SIZEOF_PTRDIFF_T */
+    #define ASSIGN_unsigned_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)
+#endif /* src: unsigned dst: ptrdiff_t */
+
 /* src: unsigned, dst: size_t */
 #if H5_SIZEOF_UNSIGNED < H5_SIZEOF_SIZE_T
     #define ASSIGN_unsigned_TO_size_t(dst, dsttype, src, srctype) \
@@ -222,6 +234,18 @@
         ASSIGN_TO_SAME_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
 #endif /* src: int dst: uint64_t */
 
+/* src: int, dst: ptrdiff_t */
+#if H5_SIZEOF_INT < H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_int_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_INT > H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_int_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_INT == H5_SIZEOF_PTRDIFF_T */
+    #define ASSIGN_int_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
+#endif /* src: int dst: ptrdiff_t */
+
 /* src: int, dst: size_t */
 #if H5_SIZEOF_INT < H5_SIZEOF_SIZE_T
     #define ASSIGN_int_TO_size_t(dst, dsttype, src, srctype) \
@@ -357,6 +381,18 @@
         ASSIGN_TO_SAME_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
 #endif /* src: uint8_t dst: uint64_t */
 
+/* src: uint8_t, dst: ptrdiff_t */
+#if H5_SIZEOF_UINT8_T < H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_uint8_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_UINT8_T > H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_uint8_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_UINT8_T == H5_SIZEOF_PTRDIFF_T */
+    #define ASSIGN_uint8_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)
+#endif /* src: uint8_t dst: ptrdiff_t */
+
 /* src: uint8_t, dst: size_t */
 #if H5_SIZEOF_UINT8_T < H5_SIZEOF_SIZE_T
     #define ASSIGN_uint8_t_TO_size_t(dst, dsttype, src, srctype) \
@@ -492,6 +528,18 @@
         ASSIGN_TO_SAME_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
 #endif /* src: uint16_t dst: uint64_t */
 
+/* src: uint16_t, dst: ptrdiff_t */
+#if H5_SIZEOF_UINT16_T < H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_uint16_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_UINT16_T > H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_uint16_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_UINT16_T == H5_SIZEOF_PTRDIFF_T */
+    #define ASSIGN_uint16_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)
+#endif /* src: uint16_t dst: ptrdiff_t */
+
 /* src: uint16_t, dst: size_t */
 #if H5_SIZEOF_UINT16_T < H5_SIZEOF_SIZE_T
     #define ASSIGN_uint16_t_TO_size_t(dst, dsttype, src, srctype) \
@@ -627,6 +675,18 @@
         ASSIGN_TO_SAME_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
 #endif /* src: uint32_t dst: uint64_t */
 
+/* src: uint32_t, dst: ptrdiff_t */
+#if H5_SIZEOF_UINT32_T < H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_uint32_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_UINT32_T > H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_uint32_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_UINT32_T == H5_SIZEOF_PTRDIFF_T */
+    #define ASSIGN_uint32_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)
+#endif /* src: uint32_t dst: ptrdiff_t */
+
 /* src: uint32_t, dst: size_t */
 #if H5_SIZEOF_UINT32_T < H5_SIZEOF_SIZE_T
     #define ASSIGN_uint32_t_TO_size_t(dst, dsttype, src, srctype) \
@@ -762,6 +822,18 @@
         ASSIGN_TO_SAME_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
 #endif /* src: uint64_t dst: uint32_t */
 
+/* src: uint64_t, dst: ptrdiff_t */
+#if H5_SIZEOF_UINT64_T < H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_uint64_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_UINT64_T > H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_uint64_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_UINT64_T == H5_SIZEOF_PTRDIFF_T */
+    #define ASSIGN_uint64_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)
+#endif /* src: uint64_t dst: ptrdiff_t */
+
 /* src: uint64_t, dst: size_t */
 #if H5_SIZEOF_UINT64_T < H5_SIZEOF_SIZE_T
     #define ASSIGN_uint64_t_TO_size_t(dst, dsttype, src, srctype) \
@@ -835,6 +907,153 @@
 #endif /* src: uint64_t dst: h5_stat_size_t */
 
 
+/* Assignment checks for ptrdiff_t */
+
+/* src: ptrdiff_t, dst: unsigned */
+#if H5_SIZEOF_PTRDIFF_T < H5_SIZEOF_UNSIGNED
+    #define ASSIGN_ptrdiff_t_TO_unsigned(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_PTRDIFF_T > H5_SIZEOF_UNSIGNED
+    #define ASSIGN_ptrdiff_t_TO_unsigned(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_PTRDIFF_T == H5_SIZEOF_UNSIGNED */
+    #define ASSIGN_ptrdiff_t_TO_unsigned(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
+#endif /* src: ptrdiff_t dst: unsigned */
+
+/* src: ptrdiff_t, dst: int */
+#if H5_SIZEOF_PTRDIFF_T < H5_SIZEOF_INT
+    #define ASSIGN_ptrdiff_t_TO_int(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_PTRDIFF_T > H5_SIZEOF_INT
+    #define ASSIGN_ptrdiff_t_TO_int(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_PTRDIFF_T == H5_SIZEOF_INT */
+    #define ASSIGN_ptrdiff_t_TO_int(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
+#endif /* src: ptrdiff_t dst: int */
+
+/* src: ptrdiff_t, dst: uint8_t */
+#if H5_SIZEOF_PTRDIFF_T < H5_SIZEOF_UINT8_T
+    #define ASSIGN_ptrdiff_t_TO_uint8_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_PTRDIFF_T > H5_SIZEOF_UINT8_T
+    #define ASSIGN_ptrdiff_t_TO_uint8_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_PTRDIFF_T == H5_SIZEOF_UINT8_T */
+    #define ASSIGN_ptrdiff_t_TO_uint8_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
+#endif /* src: ptrdiff_t dst: uint8_t */
+
+/* src: ptrdiff_t, dst: uint16_t */
+#if H5_SIZEOF_PTRDIFF_T < H5_SIZEOF_UINT16_T
+    #define ASSIGN_ptrdiff_t_TO_uint16_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_PTRDIFF_T > H5_SIZEOF_UINT16_T
+    #define ASSIGN_ptrdiff_t_TO_uint16_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_PTRDIFF_T == H5_SIZEOF_UINT16_T */
+    #define ASSIGN_ptrdiff_t_TO_uint16_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
+#endif /* src: ptrdiff_t dst: uint16_t */
+
+/* src: ptrdiff_t, dst: uint32_t */
+#if H5_SIZEOF_PTRDIFF_T < H5_SIZEOF_UINT32_T
+    #define ASSIGN_ptrdiff_t_TO_uint32_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_PTRDIFF_T > H5_SIZEOF_UINT32_T
+    #define ASSIGN_ptrdiff_t_TO_uint32_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_PTRDIFF_T == H5_SIZEOF_UINT32_T */
+    #define ASSIGN_ptrdiff_t_TO_uint32_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
+#endif /* src: ptrdiff_t dst: uint32_t */
+
+/* src: ptrdiff_t, dst: uint64_t */
+#if H5_SIZEOF_PTRDIFF_T < H5_SIZEOF_UINT64_T
+    #define ASSIGN_ptrdiff_t_TO_uint64_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_PTRDIFF_T > H5_SIZEOF_UINT64_T
+    #define ASSIGN_ptrdiff_t_TO_uint64_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_PTRDIFF_T == H5_SIZEOF_UINT64_T */
+    #define ASSIGN_ptrdiff_t_TO_uint64_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
+#endif /* src: ptrdiff_t dst: uint64_t */
+
+/* src: ptrdiff_t, dst: size_t */
+#if H5_SIZEOF_PTRDIFF_T < H5_SIZEOF_SIZE_T
+    #define ASSIGN_ptrdiff_t_TO_size_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_PTRDIFF_T > H5_SIZEOF_SIZE_T
+    #define ASSIGN_ptrdiff_t_TO_size_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_PTRDIFF_T == H5_SIZEOF_SIZE_T */
+    #define ASSIGN_ptrdiff_t_TO_size_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
+#endif /* src: ptrdiff_t dst: size_t */
+
+/* src: ptrdiff_t, dst: ssize_t */
+#if H5_SIZEOF_PTRDIFF_T < H5_SIZEOF_SSIZE_T
+    #define ASSIGN_ptrdiff_t_TO_ssize_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_PTRDIFF_T > H5_SIZEOF_SSIZE_T
+    #define ASSIGN_ptrdiff_t_TO_ssize_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_PTRDIFF_T == H5_SIZEOF_SSIZE_T */
+    #define ASSIGN_ptrdiff_t_TO_ssize_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
+#endif /* src: ptrdiff_t dst: ssize_t */
+
+/* src: ptrdiff_t, dst: haddr_t */
+#if H5_SIZEOF_PTRDIFF_T < H5_SIZEOF_HADDR_T
+    #define ASSIGN_ptrdiff_t_TO_haddr_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_PTRDIFF_T > H5_SIZEOF_HADDR_T
+    #define ASSIGN_ptrdiff_t_TO_haddr_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_PTRDIFF_T == H5_SIZEOF_HADDR_T */
+    #define ASSIGN_ptrdiff_t_TO_haddr_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
+#endif /* src: ptrdiff_t dst: haddr_t */
+
+/* src: ptrdiff_t, dst: hsize_t */
+#if H5_SIZEOF_PTRDIFF_T < H5_SIZEOF_HSIZE_T
+    #define ASSIGN_ptrdiff_t_TO_hsize_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_PTRDIFF_T > H5_SIZEOF_HSIZE_T
+    #define ASSIGN_ptrdiff_t_TO_hsize_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_PTRDIFF_T == H5_SIZEOF_HSIZE_T */
+    #define ASSIGN_ptrdiff_t_TO_hsize_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
+#endif /* src: ptrdiff_t dst: hsize_t */
+
+/* src: ptrdiff_t, dst: hssize_t */
+#if H5_SIZEOF_PTRDIFF_T < H5_SIZEOF_HSSIZE_T
+    #define ASSIGN_ptrdiff_t_TO_hssize_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_PTRDIFF_T > H5_SIZEOF_HSSIZE_T
+    #define ASSIGN_ptrdiff_t_TO_hssize_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_PTRDIFF_T == H5_SIZEOF_HSSIZE_T */
+    #define ASSIGN_ptrdiff_t_TO_hssize_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
+#endif /* src: ptrdiff_t dst: hssize_t */
+
+/* src: ptrdiff_t, dst: h5_stat_size_t */
+#if H5_SIZEOF_PTRDIFF_T < H5_SIZEOF_H5_STAT_SIZE_T
+    #define ASSIGN_ptrdiff_t_TO_h5_stat_size_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_PTRDIFF_T > H5_SIZEOF_H5_STAT_SIZE_T
+    #define ASSIGN_ptrdiff_t_TO_h5_stat_size_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_PTRDIFF_T == H5_SIZEOF_H5_STAT_SIZE_T */
+    #define ASSIGN_ptrdiff_t_TO_h5_stat_size_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
+#endif /* src: ptrdiff_t dst: h5_stat_size_t */
+
+
 /* Assignment checks for size_t */
 
 /* src: size_t, dst: unsigned */
@@ -909,6 +1128,18 @@
         ASSIGN_TO_SAME_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
 #endif /* src: size_t dst: uint64_t */
 
+/* src: size_t, dst: ptrdiff_t */
+#if H5_SIZEOF_SIZE_T < H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_size_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_SIZE_T > H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_size_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_SIZE_T == H5_SIZEOF_PTRDIFF_T */
+    #define ASSIGN_size_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)
+#endif /* src: size_t dst: ptrdiff_t */
+
 /* src: size_t, dst: ssize_t */
 #if H5_SIZEOF_SIZE_T < H5_SIZEOF_SSIZE_T
     #define ASSIGN_size_t_TO_ssize_t(dst, dsttype, src, srctype) \
@@ -1044,6 +1275,18 @@
         ASSIGN_TO_SAME_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
 #endif /* src: ssize_t dst: uint64_t */
 
+/* src: ssize_t, dst: ptrdiff_t */
+#if H5_SIZEOF_SSIZE_T < H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_ssize_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_SSIZE_T > H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_ssize_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_SSIZE_T == H5_SIZEOF_PTRDIFF_T */
+    #define ASSIGN_ssize_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
+#endif /* src: ssize_t dst: ptrdiff_t */
+
 /* src: ssize_t, dst: size_t */
 #if H5_SIZEOF_SSIZE_T < H5_SIZEOF_SIZE_T
     #define ASSIGN_ssize_t_TO_size_t(dst, dsttype, src, srctype) \
@@ -1179,6 +1422,18 @@
         ASSIGN_TO_SAME_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
 #endif /* src: haddr_t dst: uint64_t */
 
+/* src: haddr_t, dst: ptrdiff_t */
+#if H5_SIZEOF_HADDR_T < H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_haddr_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_HADDR_T > H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_haddr_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_HADDR_T == H5_SIZEOF_PTRDIFF_T */
+    #define ASSIGN_haddr_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)
+#endif /* src: haddr_t dst: ptrdiff_t */
+
 /* src: haddr_t, dst: size_t */
 #if H5_SIZEOF_HADDR_T < H5_SIZEOF_SIZE_T
     #define ASSIGN_haddr_t_TO_size_t(dst, dsttype, src, srctype) \
@@ -1314,6 +1569,18 @@
         ASSIGN_TO_SAME_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
 #endif /* src: hsize_t dst: uint64_t */
 
+/* src: hsize_t, dst: ptrdiff_t */
+#if H5_SIZEOF_HSIZE_T < H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_hsize_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_HSIZE_T > H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_hsize_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_HSIZE_T == H5_SIZEOF_PTRDIFF_T */
+    #define ASSIGN_hsize_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)
+#endif /* src: hsize_t dst: ptrdiff_t */
+
 /* src: hsize_t, dst: size_t */
 #if H5_SIZEOF_HSIZE_T < H5_SIZEOF_SIZE_T
     #define ASSIGN_hsize_t_TO_size_t(dst, dsttype, src, srctype) \
@@ -1449,6 +1716,18 @@
         ASSIGN_TO_SAME_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)
 #endif /* src: hssize_t dst: uint64_t */
 
+/* src: hssize_t, dst: ptrdiff_t */
+#if H5_SIZEOF_HSSIZE_T < H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_hssize_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_HSSIZE_T > H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_hssize_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_HSSIZE_T == H5_SIZEOF_PTRDIFF_T */
+    #define ASSIGN_hssize_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
+#endif /* src: hssize_t dst: ptrdiff_t */
+
 /* src: hssize_t, dst: size_t */
 #if H5_SIZEOF_HSSIZE_T < H5_SIZEOF_SIZE_T
     #define ASSIGN_hssize_t_TO_size_t(dst, dsttype, src, srctype) \
@@ -1584,6 +1863,18 @@
         ASSIGN_TO_SAME_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)
 #endif /* src: h5_stat_size_t dst: uint64_t */
 
+/* src: h5_stat_size_t, dst: ptrdiff_t */
+#if H5_SIZEOF_H5_STAT_SIZE_T < H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_h5_stat_size_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_LARGER_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)
+#elif H5_SIZEOF_H5_STAT_SIZE_T > H5_SIZEOF_PTRDIFF_T
+    #define ASSIGN_h5_stat_size_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)
+#else /* H5_SIZEOF_H5_STAT_SIZE_T == H5_SIZEOF_PTRDIFF_T */
+    #define ASSIGN_h5_stat_size_t_TO_ptrdiff_t(dst, dsttype, src, srctype) \
+        ASSIGN_TO_SAME_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)
+#endif /* src: h5_stat_size_t dst: ptrdiff_t */
+
 /* src: h5_stat_size_t, dst: size_t */
 #if H5_SIZEOF_H5_STAT_SIZE_T < H5_SIZEOF_SIZE_T
     #define ASSIGN_h5_stat_size_t_TO_size_t(dst, dsttype, src, srctype) \