first commit

excepts/vp_invalid_calling_error.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <stdexcept>
+
+namespace vp_excepts {
+
+    class vp_invalid_calling_error: public std::runtime_error {
+    private:
+        /* data */
+    public:
+        vp_invalid_calling_error(const std::string& what_arg);
+        ~vp_invalid_calling_error();
+    };
+    
+    inline vp_invalid_calling_error::vp_invalid_calling_error(const std::string& what_arg): std::runtime_error(what_arg) {
+    }
+    
+    inline vp_invalid_calling_error::~vp_invalid_calling_error() {
+    }
+
+}