1 files changed, 29 insertions, 9 deletions
diff --git a/Source/cmSystemTools.h b/Source/cmSystemTools.h
index 087eca7..1962389 100644
--- a/Source/cmSystemTools.h
+++ b/Source/cmSystemTools.h
@@ -8,6 +8,7 @@
 #include "cmCryptoHash.h"
 #include "cmDuration.h"
 #include "cmProcessOutput.h"
+#include "cm_string_view.hxx"
 #include "cmsys/Process.h"
 #include "cmsys/SystemTools.hxx" // IWYU pragma: export
 #include <functional>
@@ -149,26 +150,45 @@ public:
    * forced this value. This is not the same as On, but this
    * may be considered as "internally switched on".
    */
-  static bool IsInternallyOn(const char* val);
+  static bool IsInternallyOn(cm::string_view val);
+  static inline bool IsInternallyOn(const char* val)
+  {
+    if (!val) {
+      return false;
+    }
+    return IsInternallyOn(cm::string_view(val));
+  }
+
   /**
-   * does a string indicate a true or on value ? This is not the same
-   * as ifdef.
+   * Does a string indicate a true or on value? This is not the same as ifdef.
    */
-  static bool IsOn(const char* val);
-  static bool IsOn(const std::string& val);
+  static bool IsOn(cm::string_view val);
+  inline static bool IsOn(const char* val)
+  {
+    if (!val) {
+      return false;
+    }
+    return IsOn(cm::string_view(val));
+  }
 
   /**
-   * does a string indicate a false or off value ? Note that this is
+   * Does a string indicate a false or off value ? Note that this is
    * not the same as !IsOn(...) because there are a number of
    * ambiguous values such as "/usr/local/bin" a path will result in
    * IsON and IsOff both returning false. Note that the special path
    * NOTFOUND, *-NOTFOUND or IGNORE will cause IsOff to return true.
    */
-  static bool IsOff(const char* val);
-  static bool IsOff(const std::string& val);
+  static bool IsOff(cm::string_view val);
+  inline static bool IsOff(const char* val)
+  {
+    if (!val) {
+      return true;
+    }
+    return IsOff(cm::string_view(val));
+  }
 
   //! Return true if value is NOTFOUND or ends in -NOTFOUND.
-  static bool IsNOTFOUND(const char* value);
+  static bool IsNOTFOUND(cm::string_view val);
   //! Return true if the path is a framework
   static bool IsPathToFramework(const std::string& value);