Controll for particle Map file header missing

map.cpp

@@ -111,6 +111,7 @@ int bioem_RefMap::readRefMaps(bioem_param& param, const char* filemap)
 
 		char line[512] = {0};
 		char tmpLine[512] = {0};
+                bool first=true;
 
 		while (!input.eof())
 		{
@@ -119,6 +120,14 @@ int bioem_RefMap::readRefMaps(bioem_param& param, const char* filemap)
 			strncpy(tmpLine, line, strlen(line));
 			char *token = strtok(tmpLine, " ");
 
+                        if(first){
+			 	if (strcmp(token, "PARTICLE") != 0) {
+                                 cout << "Missing correct Standard Map Format: PARTICLE HEADER\n"<< endl ;
+	                        exit(1);
+				}
+                         first=false;
+			}
+
 			if (strcmp(token, "PARTICLE") == 0) // to count the number of maps
 			{
 				nummap++;