C++ completely erase (or reset) all values of a struct?

Question

So, I was just wondering how could we completely erase or reset a structure so it could be reused?

I just typed this up, here you go:

typedef struct PART_STRUCT {     unsigned int Id;     std::string Label; } Part;  typedef struct OBJECT_STRUCT {     std::vector< unsigned char > DBA;     std::vector< Part > Parts;     unsigned int Id; } Object;  Object Engine;  // Initialize all members of Engine // Do whatever with Engine // ... // Erase/Reset Engine value 

Answer 1

You can just assign a constructed temporary to it:

Part my_struct;  my_struct = Part(); // reset 

C++11:

my_struct = {}; // reset 

Answer 2

If for some reason I was hell-bent on keeping the same object constantly, I would just write a reset method that would reset all the values back to what they were.

Something similar to this:

struct Test {     int a;     int b;     Test(): a(0), b(100) {}     void reset() {         a = 0;         b = 100;     } };  int main() {     Test test;     //do stuff with test     test.reset(); //reset test }