Write and load vector of structs in a binary file c++

Question

I really need your help. I have the following structs in my code:

    struct Field{
        char name[20];
        int type;
        int length;
    };

             


        

Answer 1

I used c-like sentence to process. The key is you just need to find the address of the first vec data, than use adjacent buffer to write them in files.

bool storeStructVec(FILE *fpOut, const vector &vec)
{
    unsigned int nSize = vec.size();
    if (nSize != fwrite(&vec[0],sizeof(Field),nSize,fpOut))
         return false;
    else return true;
}