AddInputCharactersUTF8: shallow tweaks (#274)

imgui.cpp

@@ -778,16 +778,14 @@ void ImGuiIO::AddInputCharacter(ImWchar c)
     }
 }
 
-void ImGuiIO::AddInputCharactersUTF8(const char* utf8chars)
+void ImGuiIO::AddInputCharactersUTF8(const char* utf8_chars)
 {
-    // we can't pass more wchars than ImGuiIO::InputCharacters[] can hold so don't convert more
-    static const int wcharBufLen = sizeof(ImGuiIO::InputCharacters)/sizeof(ImWchar);
-    ImWchar wchars[wcharBufLen];
-    ImTextStrFromUtf8(wchars, wcharBufLen, utf8chars, NULL);
-    for(int i=0; i<wcharBufLen && wchars[i] != 0; ++i)
-    {
+    // We can't pass more wchars than ImGuiIO::InputCharacters[] can hold so don't convert more
+    const int wchars_buf_len = sizeof(ImGuiIO::InputCharacters) / sizeof(ImWchar);
+    ImWchar wchars[wchars_buf_len];
+    ImTextStrFromUtf8(wchars, wchars_buf_len, utf8_chars, NULL);
+    for (int i = 0; wchars[i] != 0 && i < wchars_buf_len; i++)
         AddInputCharacter(wchars[i]);
-    }
 }
 
 // Math bits

imgui.h

@@ -703,9 +703,9 @@ struct ImGuiIO
     bool        KeysDown[512];              // Keyboard keys that are pressed (in whatever storage order you naturally have access to keyboard data)
     ImWchar     InputCharacters[16+1];      // List of characters input (translated by user from keypress+keyboard state). Fill using AddInputCharacter() helper.
 
-    // Function
-    IMGUI_API void AddInputCharacter(ImWchar c); // Helper to add a new character into InputCharacters[]
-    IMGUI_API void AddInputCharactersUTF8(const char* utf8chars); // Helper to add new characters into InputCharacters[] from an utf8-string
+    // Functions
+    IMGUI_API void AddInputCharacter(ImWchar c);                    // Helper to add a new character into InputCharacters[]
+    IMGUI_API void AddInputCharactersUTF8(const char* utf8_chars);  // Helper to add new characters into InputCharacters[] from an UTF-8 string
 
     //------------------------------------------------------------------
     // Output - Retrieve after calling NewFrame(), you can use them to discard inputs or hide them from the rest of your application