Index: ext/libicpf/src/libicpf/str_help.h
===================================================================
diff -u -N -rb337c059691a6940b52a86388ff427c734be8eb6 -r21847bff9bc6958b98f3fe8bac319590b790fc0f
--- ext/libicpf/src/libicpf/str_help.h	(.../str_help.h)	(revision b337c059691a6940b52a86388ff427c734be8eb6)
+++ ext/libicpf/src/libicpf/str_help.h	(.../str_help.h)	(revision 21847bff9bc6958b98f3fe8bac319590b790fc0f)
@@ -36,8 +36,12 @@
     #define wcsnicmp wcsncasecmp
 #endif
 
-/// Checks if a given character is a whitespace character
-LIBICPF_API bool is_whitespace(char_t ch);
+class LIBICPF_API string_tool
+{
+public:
+	/// Checks if a given character is a whitespace character
+	static bool is_whitespace(tchar_t ch);
+};
 
 END_ICPF_NAMESPACE