update DataManager (#2629)

gframe/data_manager.cpp

@@ -68,7 +68,8 @@ bool DataManager::ReadDB(sqlite3* pDB) {
 				BufferIO::DecodeUTF8(text, strBuffer);
 				cs.text = strBuffer;
 			}
-			for (int i = 0; i < 16; ++i) {
+			constexpr int desc_count = sizeof cs.desc / sizeof cs.desc[0];
+			for (int i = 0; i < desc_count; ++i) {
 				if (const char* text = (const char*)sqlite3_column_text(pStmt, i + 14)) {
 					BufferIO::DecodeUTF8(text, strBuffer);
 					cs.desc[i] = strBuffer;
@@ -177,16 +178,16 @@ code_pointer DataManager::GetCodePointer(unsigned int code) const {
 string_pointer DataManager::GetStringPointer(unsigned int code) const {
 	return _strings.find(code);
 }
-code_pointer DataManager::datas_begin() {
+code_pointer DataManager::datas_begin() const {
 	return _datas.cbegin();
 }
-code_pointer DataManager::datas_end() {
+code_pointer DataManager::datas_end() const {
 	return _datas.cend();
 }
-string_pointer DataManager::strings_begin() {
+string_pointer DataManager::strings_begin() const {
 	return _strings.cbegin();
 }
-string_pointer DataManager::strings_end() {
+string_pointer DataManager::strings_end() const {
 	return _strings.cend();
 }
 bool DataManager::GetData(unsigned int code, CardData* pData) const {

gframe/data_manager.h

@@ -22,10 +22,10 @@ public:
 
 	code_pointer GetCodePointer(unsigned int code) const;
 	string_pointer GetStringPointer(unsigned int code) const;
-	code_pointer datas_begin();
-	code_pointer datas_end();
-	string_pointer strings_begin();
-	string_pointer strings_end();
+	code_pointer datas_begin() const;
+	code_pointer datas_end() const;
+	string_pointer strings_begin() const;
+	string_pointer strings_end() const;
 	bool GetData(unsigned int code, CardData* pData) const;
 	bool GetString(unsigned int code, CardString* pStr) const;
 	const wchar_t* GetName(unsigned int code) const;