cciutils: error out if the specified parameter is not found

This should help users find out when a specific parameter is present or
not.

Signed-off-by: Matheus Tavares Bernardino <[email protected]>

systemc-components/common/include/cciutils.h

@@ -241,6 +241,7 @@ class HelpSingleton : public sc_core::sc_module
 
     void print_used_parameter(cci::cci_broker_handle broker, std::string path = "")
     {
+        bool found_match = false;
         for (auto v : m_used) {
             if (v.rfind(path, 0) == 0) {
                 cci::cci_value c = cci_get(broker, v);
@@ -254,8 +255,12 @@ class HelpSingleton : public sc_core::sc_module
                     std::cout << " (" << h.get_description() << ")";
                 }
                 std::cout << std::endl;
+                found_match = true;
             }
         }
+        if (!path.empty() && !found_match) {
+            SCP_FATAL("cciutils") << "No parameter matching '" << path << "'.";
+        }
     }
 
     void set_unused(const std::string& parname, const cci_originator& originator)