BUG: label64: write primitives consistent with label size. Fixes #505.

src/OpenFOAM/primitives/bools/bool/boolIO.C

@@ -45,7 +45,7 @@ Foam::Ostream& Foam::operator<<(Ostream& os, const bool b)
 {
     // we could also write as text string without any difficulty
     // os  << (b ? "true" : "false");
-    os.write(int(b));
+    os.write(label(b));
     os.check(FUNCTION_NAME);
     return os;
 }

src/OpenFOAM/primitives/direction/directionIO.C

@@ -68,7 +68,7 @@ Foam::Istream& Foam::operator>>(Istream& is, direction& d)
 
 Foam::Ostream& Foam::operator<<(Ostream& os, const direction d)
 {
-    os.write(int(d));
+    os.write(label(d));
     os.check(FUNCTION_NAME);
     return os;
 }