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我所定義的模板類,如下所示:訪問衝突分配一個值時,一個圖矢量容器的元件
template <class T, size_t IR_CAL_LEVELS>
class CCalibrationTable
{
public:
// Default Constructor/Destructor
CCalibrationTable(void);
~CCalibrationTable(void) {}
// Implementation
void Decode(const unsigned char* pszData);
protected:
int m_nActiveSensorID; // Sensor selection 1-primary sensor, 2-backup sensor (11) I*1
std::map<std::string, std::vector<T> > m_mapCalibrationTables; // Calibration tables such as VIS 64-level albedo cnversion table, and
// IR Level-temperature conversion tables.
private:
static const size_t VIS_CAL_LEVELS;
static const size_t NUM_OF_GROUPS;
};
template<class T, size_t IR_CAL_LEVELS>
const size_t CCalibrationTable<T, IR_CAL_LEVELS>::VIS_CAL_LEVELS = 64;
template<class T, size_t IR_CAL_LEVELS>
const size_t CCalibrationTable<T, IR_CAL_LEVELS>::NUM_OF_GROUPS = 25;
template<class T, size_t IR_CAL_LEVELS>
CCalibrationTable<T, IR_CAL_LEVELS>::CCalibrationTable()
{
// For VIS channels
m_mapCalibrationTables.insert(std::make_pair("VIS1Cal", std::vector<T>(VIS_CAL_LEVELS, 0)));
m_mapCalibrationTables.insert(std::make_pair("VIS2Cal", std::vector<T>(VIS_CAL_LEVELS, 0)));
m_mapCalibrationTables.insert(std::make_pair("VIS3Cal", std::vector<T>(VIS_CAL_LEVELS, 0)));
m_mapCalibrationTables.insert(std::make_pair("VIS4Cal", std::vector<T>(VIS_CAL_LEVELS, 0)));
// For IR channels
m_mapCalibrationTables.insert(std::make_pair("IR1Cal", std::vector<T>(IR_CAL_LEVELS, 0)));
m_mapCalibrationTables.insert(std::make_pair("IR2Cal", std::vector<T>(IR_CAL_LEVELS, 0)));
m_mapCalibrationTables.insert(std::make_pair("IR3Cal", std::vector<T>(IR_CAL_LEVELS, 0)));
m_mapCalibrationTables.insert(std::make_pair("IR4Cal", std::vector<T>(IR_CAL_LEVELS, 0)));
}
template<class T, size_t IR_CAL_LEVELS>
void CCalibrationTable<T, IR_CAL_LEVELS>::Decode(const unsigned char* pszData)
{
// Sensor selection 1-primary sensor, 2-backup sensor (11) I*1
m_nActiveSensorID = CBCDDecoder::SINTn(1, &(pszData[CBCDDecoder::IndexI2D(11)]));
for (size_t nVISLevel = 0; nVISLevel < VIS_CAL_LEVELS; nVISLevel++)
{
int nOffset = (nVISLevel << 2);
m_mapCalibrationTables["VIS1Cal"][nVISLevel] = CBCDDecoder::REALnm(4, 6, &(pszData[CBCDDecoder::IndexI2D(257 + nOffset)]));
m_mapCalibrationTables["VIS2Cal"][nVISLevel] = CBCDDecoder::REALnm(4, 6, &(pszData[CBCDDecoder::IndexI2D(257 + (VIS_CAL_LEVELS << 2) + nOffset)]));
m_mapCalibrationTables["VIS3Cal"][nVISLevel] = CBCDDecoder::REALnm(4, 6, &(pszData[CBCDDecoder::IndexI2D(257 + (VIS_CAL_LEVELS << 2) * 2 + nOffset)]));
m_mapCalibrationTables["VIS4Cal"][nVISLevel] = CBCDDecoder::REALnm(4, 6, &(pszData[CBCDDecoder::IndexI2D(257 + (VIS_CAL_LEVELS << 2) * 3 + nOffset)]));
}
for (int nIRLevel = 0; nIRLevel < IR_CAL_LEVELS; nIRLevel++)
{
int nOffset = (nIRLevel << 2);
m_mapCalibrationTables["IR1Cal"][nIRLevel] = CBCDDecoder::REALnm(4, 3, &(pszData[CBCDDecoder::IndexI2D(1281 + nOffset)]));
m_mapCalibrationTables["IR2Cal"][nIRLevel] = CBCDDecoder::REALnm(4, 3, &(pszData[CBCDDecoder::IndexI2D(1281 + (IR_CAL_LEVELS << 2) + nOffset)]));
m_mapCalibrationTables["IR3Cal"][nIRLevel] = CBCDDecoder::REALnm(4, 3, &(pszData[CBCDDecoder::IndexI2D(1281 + (IR_CAL_LEVELS << 2) * 2 + nOffset)]));
m_mapCalibrationTables["IR4Cal"][nIRLevel] = CBCDDecoder::REALnm(4, 3, &(pszData[CBCDDecoder::IndexI2D(1281 + (IR_CAL_LEVELS << 2) * 3 + nOffset)]));
}
}
當我通過首先聲明像下面使用這種模板類的另一個類中:
CCalibrationTable<double, 1024> m_CalibrationTable;
錯誤(訪問衝突讀取位置0x00000004)當解碼值分配給我的地圖矢量容器m_mapCalibrationTables發生。正如您在其構造函數中看到的,所有映射鍵以及它們各自的向量值都已準備好(保留空間並初始化爲0)。
我的賦值語句(如「m_mapCalibrationTables [」VIS1Cal「] [nVISLevel] = XXXXX」)有什麼問題?你最好不要懷疑我的解碼器的返回值,比如REALnm和IndexI2D,它們分別只返回double和integer值。我檢查了這些返回值,它們是正確的。
預先感謝您!
此代碼是否最小? (不知何故,我懷疑它。) – Beta
誰擦除我的地圖矢量容器?我已經在構造函數中初始化了。但是當我在Decode函數中使用m_CalibrationTable時,它是一個空容器。爲什麼? – GoldenLee
@Beta 2:感謝您關注我的問題。對不起,我遲到了,因爲這是我的午餐時間。 「這個代碼是最小的嗎?」你什麼意思?你能給我詳細的解釋嗎? – GoldenLee