Replace 'constexpr' with 'const char*'

'constexpr' causes the warning [-Wwrite-strings].
So replace 'constexpr' with 'const char*'.

Change-Id: I03e2c7b53e4db6cb5b804c66cb88ae15e2387eb8
Signed-off-by: Yuta Doi <yuta-d@witz-inc.co.jp>

2 files changed, 8 insertions, 4 deletions

diff --git a/src/libwindowmanager.cpp b/src/libwindowmanager.cpp
index 770d248..84a091f 100644
--- a/src/libwindowmanager.cpp
+++ b/src/libwindowmanager.cpp
@@ -57,6 +57,10 @@ class LibWindowmanager::Impl {
       std::string("flushdraw")
     };
 
+    /* Key for json obejct */
+    const char *kKeyDrawingName = "drawing_name";
+    const char *kKeyDrawingArea = "drawing_area";
+
     // This is the LibWindowmanager interface impl
     int init(int port, char const *token);
 
@@ -229,7 +233,7 @@ int LibWindowmanager::Impl::requestSurface(json_object *object) {
     TRACE();
 
     const char *tmp_label = json_object_get_string(
-        json_object_object_get(object, LibWindowmanager::kKeyDrawingName));
+        json_object_object_get(object, this->kKeyDrawingName));
 
     // DrawingName in "object" is overwrited in api_call("RequestSurface")
     // So it is neccesary to copy it.
@@ -444,7 +448,7 @@ void LibWindowmanager::Impl::event(char const *et, json_object *object) {
     auto i = this->handlers.find(oet.second);
     if (i != this->handlers.end()) {
         const char *label = json_object_get_string(
-            json_object_object_get(object, LibWindowmanager::kKeyDrawingName));
+            json_object_object_get(object, this->kKeyDrawingName));
 
         if (this->labels.find(label) != this->labels.end()) {
             i->second(object);
diff --git a/src/libwindowmanager.h b/src/libwindowmanager.h
index 59c5ca5..83dff5f 100644
--- a/src/libwindowmanager.h
+++ b/src/libwindowmanager.h
@@ -38,8 +38,8 @@ public:
     const std::string kStrAreaSub = "sub";
 
     /* Key for json obejct */
-    constexpr static char *kKeyDrawingName = "drawing_name";
-    constexpr static char *kKeyDrawingArea = "drawing_area";
+    const char *kKeyDrawingName = "drawing_name";
+    const char *kKeyDrawingArea = "drawing_area";
 
     enum EventType {
        Event_Active = 0,