Removing the need for const_cast.

Author: nicolasnoble

third_party/imgui_memory_editor/imgui_memory_editor.cpp

@@ -80,7 +80,7 @@ void MemoryEditor::CalcSizes(Sizes& s, size_t mem_size)
 	if (PushMonoFont) ImGui::PopFont();
 }
 
-ImU8 MemoryEditor::ReadByte(size_t addr)
+ImU8 MemoryEditor::ReadByte(size_t addr) const
 {
 	if (Cache.BulkReadFn) return Cache.read(addr);
 	if (ReadFn) return ReadFn(addr);
@@ -567,7 +567,7 @@ void MemoryEditor::DrawPreviewData(size_t addr, size_t mem_size, ImGuiDataType d
 	size_t elem_size = DataTypeGetSize(data_type);
 	size_t size = addr + elem_size > mem_size ? mem_size - addr : elem_size;
 	for (int i = 0, n = (int)size; i < n; ++i)
-		buf[i] = const_cast<MemoryEditor*>(this)->ReadByte(addr + i);
+		buf[i] = ReadByte(addr + i);
 
 	if (data_format == DataFormat_Bin)
 	{

third_party/imgui_memory_editor/imgui_memory_editor.h

@@ -127,7 +127,7 @@ struct MemoryEditor
         size_t m_totalSize = 0;
     };
 
-    ReadCache Cache;
+    mutable ReadCache Cache;
 
 private:
     // [Internal State]
@@ -186,6 +186,6 @@ struct MemoryEditor
 
 private:
     // [Internal]
-    ImU8 ReadByte(size_t addr);
+    ImU8 ReadByte(size_t addr) const;
     void DrawPreviewData(size_t addr, size_t mem_size, ImGuiDataType data_type, DataFormat data_format, char* out_buf, size_t out_buf_size) const;
 };