fixed multiple definitions

tsung-wei-huang · tsung-wei-huang · commit 158492ebe032 · 2020-05-11T23:43:36.000-06:00
diff --git a/taskflow/core/observer.hpp b/taskflow/core/observer.hpp
@@ -482,7 +482,7 @@ enum ObserverType {
 /**
 @brief convert an observer type to a human-readable string
 */
-const char* observer_type_to_string(ObserverType type) {
+inline const char* observer_type_to_string(ObserverType type) {
   const char* val;
   switch(type) {
     case TFPROF: val = "TFProf";    break;
diff --git a/taskflow/core/task.hpp b/taskflow/core/task.hpp
@@ -28,7 +28,7 @@ enum TaskType {
 /**
 @brief convert a task type to a human-readable string
 */
-const char* task_type_to_string(TaskType type) {
+inline const char* task_type_to_string(TaskType type) {
 
   const char* val;
 
