3 files changed, 3 insertions, 3 deletions

diff --git a/src/functionclose.cpp b/src/functionclose.cpp
index ac9c6f6..d652913 100644
--- a/src/functionclose.cpp
+++ b/src/functionclose.cpp
@@ -20,7 +20,7 @@ Bu::String FunctionClose::getName() const
 
 Variable FunctionClose::call( Variable &input, VarList )
 {
-        FileMgr::getInstance().close( (int)input.getOpaque() );
+        FileMgr::getInstance().close( (ptrdiff_t)input.getOpaque() );
         return Variable();
 }
 
diff --git a/src/functionread.cpp b/src/functionread.cpp
index 789e9e1..b9c8397 100644
--- a/src/functionread.cpp
+++ b/src/functionread.cpp
@@ -26,7 +26,7 @@ Variable FunctionRead::call( Variable &input, VarList lParams )
                 int iSize = lParams.first().toInt();
                 Bu::String sBuf( iSize );
                 sBuf.resize(
-                        FileMgr::getInstance().get( (int)input.getOpaque() ).read(
+                        FileMgr::getInstance().get( (ptrdiff_t)input.getOpaque() ).read(
                                 sBuf.getStr(), iSize
                                 )
                         );
diff --git a/src/functionwrite.cpp b/src/functionwrite.cpp
index 7abb661..14a396a 100644
--- a/src/functionwrite.cpp
+++ b/src/functionwrite.cpp
@@ -26,7 +26,7 @@ Variable FunctionWrite::call( Variable &input, VarList lParams )
                         "write takes one parameter, the string to write."
                         );
         }
-        FileMgr::getInstance().get( (int)input.getOpaque() ).write(
+        FileMgr::getInstance().get( (ptrdiff_t)input.getOpaque() ).write(
                 lParams.first().toString()
                 );
         return Variable();