c++结构体开内存

main.cpp

int process_lpr(vector, shared_ptr, vector &);
vector plates;
process_lpr(images,  engine, plates);    

a.cpp

int process_lpr(vector images, shared_ptr engine, vector &plates)
{
    for(int b=0;b
        pr::plate returnRes=plates[b];
                if(plate_lenghth==7){
            returnRes.nameList=single_name;
            returnRes.confList=single_confid;
            returnRes.length = plate_lenghth;
            returnRes.name =name ;
            returnRes.confidence = sum_confidence/plate_lenghth;
            printf("length=%d,name=%s,confidence=%fn", returnRes.length, returnRes.name.c_str(),returnRes.confidence);
        for(int i=0; i
            printf("namelist_%d=%s,score=%fn", i, returnRes.nameList[i].c_str(),returnRes.confList[i]);
        }
        }

这样在main.cpp和a.cpp中都没有开内存，会报断错误。
解决方法一：
修改a.cpp

int process_lpr(vector images, shared_ptr engine, vector &plates)
{
    for(int b=0;b
        pr::plate returnRes;      //在这里开内存
        if(plate_lenghth==7){
            returnRes.nameList=single_name;
            returnRes.confList=single_confid;
            returnRes.length = plate_lenghth;
            returnRes.name =name ;
            returnRes.confidence = sum_confidence/plate_lenghth;
            printf("length=%d,name=%s,confidence=%fn", returnRes.length, returnRes.name.c_str(),returnRes.confidence);
        for(int i=0; i
            printf("namelist_%d=%s,score=%fn", i, returnRes.nameList[i].c_str(),returnRes.confList[i]);
        }
         plates.push_back(returnRes);
        }