Without manual bytes to its, sizeof (struct)=77, under the condition of the manual for the assignment does not collapse, strives for the bosses to solve!

CodePudding user response:

# pragma pack structure specified byte alignment try

 
# pragma pack (push, 8) 
Typedef struct _tagxxxx_t 
{
} XXXX. 
# pragma pack (pop) 

CodePudding user response:

# pragma pack I tried doesn't crash, structure variable position adjustment will not collapse, I just want to know why the string assignment will collapse

CodePudding user response:

Structure definition will not collapse in the format
Int iLine;
Int iCorner;
Int total_layer;
Float pixel_to_mm;
Float min_length;
Float max_length;
Float max_angle_thresh;

Bool isDrawBarcode;//is in the draw bar code on the picture

Bool isDrawLine;
Bool isShowData;
Bool isShowAngle;
Bool isDetectAngle: 2;

CV: : the Rect detected_rect;
STD: : string strBarcode;

CodePudding user response:

This structure should write a deep copy construction and overloaded assignment operator

CodePudding user response:

Have to write the assignment operator, this is a whole structure of code

Typedef struct stInputParams
{
Int iLine;
Int iCorner;
Int total_layer;
Float pixel_to_mm;
Float min_length;
Float max_length;
Float max_angle_thresh;

Bool isDrawBarcode;//is in the draw bar code on the picture

Bool isDrawLine;
Bool isShowData;
Bool isShowAngle;
Bool isDetectAngle;

CV: : the Rect detected_rect;
STD: : string strBarcode;

StInputParams ()
{
ILine=1;
ICorner=1;
Total_layer=5;
Pixel_to_mm=0.01 f;
Min_length=0.1;
Max_length=1.4 f;
Max_angle_thresh=90.0 f;

IsDrawBarcode=false;

IsDrawLine=true;
IsShowData=https://bbs.csdn.net/topics/true;
IsDetectAngle=true;
IsShowAngle=true;
Detected_rect=CV: : the Rect (0, 0, 0, 0);
StrBarcode=STD: : string (" ERROR ");
}

StInputParams operator=(const stInputParams& Params)
{
ILine=params. ILine;
ICorner=params. ICorner;
Total_layer=params. Total_layer;
Pixel_to_mm=params. Pixel_to_mm;
Min_length=params. Min_length;
Max_length=params. Max_length;
Max_angle_thresh=params. Max_angle_thresh;

IsDrawBarcode=params. IsDrawBarcode;

IsDrawLine=params. IsDrawLine;
IsShowData=https://bbs.csdn.net/topics/params.isShowData;
IsDetectAngle=params. IsDetectAngle;
IsShowAngle=params. IsShowAngle;
Detected_rect=params. Detected_rect;
StrBarcode=params. StrBarcode;

Return (* this);
}

} stInputParams;

CodePudding user response:

reference 5 floor lhw330472787 reply:

already has written assignment operator, this is a whole structure of code

Typedef struct stInputParams
{
Int iLine;
Int iCorner;
Int total_layer;
Float pixel_to_mm;
Float min_length;
Float max_length;
Float max_angle_thresh;

Bool isDrawBarcode;//is in the draw bar code on the picture

Bool isDrawLine;
Bool isShowData;
Bool isShowAngle;
Bool isDetectAngle;

CV: : the Rect detected_rect;
STD: : string strBarcode;

StInputParams ()
{
ILine=1;
ICorner=1;
Total_layer=5;
Pixel_to_mm=0.01 f;
Min_length=0.1;
Max_length=1.4 f;
Max_angle_thresh=90.0 f;

IsDrawBarcode=false;

IsDrawLine=true;
IsShowData=https://bbs.csdn.net/topics/true;
IsDetectAngle=true;
IsShowAngle=true;
Detected_rect=CV: : the Rect (0, 0, 0, 0);
StrBarcode=STD: : string (" ERROR ");
}

StInputParams operator=(const stInputParams& Params)
{
ILine=params. ILine;
ICorner=params. ICorner;
Total_layer=params. Total_layer;
Pixel_to_mm=params. Pixel_to_mm;
Min_length=params. Min_length;
Max_length=params. Max_length;
Max_angle_thresh=params. Max_angle_thresh;

IsDrawBarcode=params. IsDrawBarcode;

IsDrawLine=params. IsDrawLine;
IsShowData=https://bbs.csdn.net/topics/params.isShowData;
IsDetectAngle=params. IsDetectAngle;
IsShowAngle=params. IsShowAngle;
Detected_rect=params. Detected_rect;
StrBarcode=params. StrBarcode;

Return (* this);
}

} stInputParams;

Separate test this no problem, if other places caused by the operation of crossing the line and/or information has been modified?