quiet warnings, add Clamp()

include/fctsys.h

@@ -1,8 +1,8 @@
 /********************/
 /* System includes. */
 /********************/
-#ifndef FCTSYS_H
-#define FCTSYS_H
+#ifndef FCTSYS_H_
+#define FCTSYS_H_
 
 // For compilers that support precompilation, includes "wx.h".
 #include <wx/wxprec.h>
@@ -46,6 +46,25 @@
 #define D(x)        // nothing
 #endif
 
+/**
+ * Function Clamp
+ * limits @a value within the range @a lower <= @a value <= @a upper.  It will work
+ * on temporary expressions, since they are evaluated only once, and it should work
+ * on most if not all numeric types. The arguments are accepted in this order so you
+ * can remember the expression as a memory aid:
+ * <p>
+ * result is:  lower <= value <= upper
+ */
+template <typename T> inline const T& Clamp( const T& lower, const T& value, const T& upper )
+{
+    wxASSERT( lower <= upper );
+    if( value < lower )
+        return lower;
+    else if( value > upper )
+        return upper;
+    return value;
+}
+
 #define UNIX_STRING_DIR_SEP wxT( "/" )
 #define WIN_STRING_DIR_SEP  wxT( "\\" )
 
@@ -64,4 +83,4 @@
 
 #include <config.h>
 
-#endif /* FCTSYS_H */
+#endif // FCTSYS_H__

pcbnew/dialogs/dialog_pad_properties.cpp

@@ -438,7 +438,7 @@ void DIALOG_PAD_PROPERTIES::initValues()
     // Type of pad selection
     m_PadType->SetSelection( 0 );
 
-    for( int ii = 0; ii < NBTYPES; ii++ )
+    for( unsigned ii = 0; ii < NBTYPES; ii++ )
     {
         if( CodeType[ii] == m_dummyPad->GetAttribute() )
         {
@@ -574,10 +574,9 @@ void DIALOG_PAD_PROPERTIES::PadOrientEvent( wxCommandEvent& event )
 void DIALOG_PAD_PROPERTIES::PadTypeSelected( wxCommandEvent& event )
 {
     long        layer_mask;
-    int  ii;
+    unsigned    ii = m_PadType->GetSelection();
 
-    ii = m_PadType->GetSelection();
-    if( ii < 0 || ii >= NBTYPES )
+    if( ii >= NBTYPES ) // catches < 0 also
         ii = 0;
 
     layer_mask = Std_Pad_Layers[ii];