make targ_size_t 64 bits for SPP and HTOD

Author: WalterBright

dm/src/dmc/cdef.d

@@ -286,28 +286,10 @@ enum
 enum REGMASK = 0xFFFF;
 
 // targ_llong is also used to store host pointers, so it should have at least their size
-version (SCPP)
-{
-    // 64 bit support
-    alias targ_ptrdiff_t = int64_t;   // ptrdiff_t for target machine
-    alias targ_size_t = uint64_t;     // size_t for the target machine
-}
-else version (SPP)
-{
-    alias targ_ptrdiff_t = targ_int;  // ptrdiff_t for target machine
-    alias targ_size_t = targ_uns;     // size_t for the target machine
-}
-else version (HTOD)
-{
-    alias targ_ptrdiff_t = targ_int;  // ptrdiff_t for target machine
-    alias targ_size_t = targ_uns;     // size_t for the target machine
-}
-else
-{
-    // Support 64 bit targets
-    alias targ_ptrdiff_t = int64_t;  // ptrdiff_t for target machine
-    alias targ_size_t = uint64_t;    // size_t for the target machine
-}
+
+// 64 bit support
+alias targ_ptrdiff_t = int64_t;   // ptrdiff_t for target machine
+alias targ_size_t = uint64_t;     // size_t for the target machine
 
 /* Enable/disable various features
    (Some features may no longer work the old way when compiled out,

dm/src/dmc/htod.d

@@ -424,7 +424,7 @@ void htod_struct(Classsym *s)
         switch (sf.Sclass)
         {
             case SCmember:
-                memoff = sf.Smemoff;
+                memoff = cast(uint)sf.Smemoff;
                 htod_indent(indent + 4);
                 fprintf(fdmodule, "%s%s;\n", pt, &sf.Sident[0]);
                 break;
@@ -435,7 +435,7 @@ void htod_struct(Classsym *s)
                     sprintf(bf.ptr, "__bitfield%d", ++bitfieldn);
                     htod_indent(indent + 4);
                     fprintf(fdmodule, "%s%s;\n", pt, bf.ptr);
-                    memoff = sf.Smemoff;
+                    memoff = cast(uint)sf.Smemoff;
                 }
                 // Swidth, Sbit
                 m = (cast(targ_ullong)1 << sf.Swidth) - 1;