我沒有使用任何模板,它不是一個靜態類或函數,所以我完全不知道爲什麼它在定義時會拋出LNK2001錯誤。 以下是完整的錯誤:未解析的外部符號,即使它已被定義?
1>mapgenerator.obj : error LNK2019: unresolved external symbol "private: class std::vector<int,class std::allocator<int> > __thiscall MapGenerator::Decode(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >)" ([email protected]@@[email protected][email protected]@[email protected]@@[email protected]@[email protected][email protected]@[email protected]@[email protected]@[email protected]@[email protected]@Z) referenced in function "private: void __thiscall MapGenerator::GenerateTileLayer(class TiXmlNode *)" ([email protected]@@[email protected]@@Z)
My MapGenerator class;
class MapGenerator
{
public:
//Constructor and destructor
MapGenerator(std::string tmxfile) : doc(tmxfile.c_str()) { Load(); }
~MapGenerator();
//Loads in a new TMX file
void Load();
//Returns a map
void GetMap();
//Reads the TMX document
void Read();
private:
//The TMX document
TiXmlDocument doc;
//Generates a tile layer
void GenerateTileLayer(TiXmlNode* node);
//Generates a tileset
void GenerateTileset(TiXmlNode* node);
//Generates an Object Layer
void GenerateObjectLayer(TiXmlNode* node);
//Generates a Map Object(Goes in the object layer)
void GenerateObject(TiXmlNode* node);
//Decodes the data
std::vector<int> Decode(std::string data);
bool loadOkay;
};
而且在在.cpp隨附定義,
std::vector<int> Decode(std::string data)
{
//Represents the layer data
std::vector<int> layerdata;
//Decodes the data
data = base64_decode(data);
//Shift bits
for(unsigned int i = 0; i < data.size(); i+=4)
{
const int gid = data[i] |
data[i + 1] << 8 |
data[i + 2] << 16 |
data[i + 3] << 24;
//Add the resulting integer to the layer data vector
layerdata.push_back(gid);
}
//Return the layer data vector
return layerdata;
}
我打電話這樣的功能,
std::string test(node->FirstChild("data")->Value());
data = Decode(test);
我不知道爲什麼它是抱怨,當一切看起來合適。 在附註上,我試着讓函數採用const char * const而不是std :: string,因爲這是Value()返回的值,但仍然收到LNK2001錯誤。 任何想法?
您忘了將'MapGenerator ::'添加到您的定義('Decode')中。 –