C ++会完全擦除（或重置）结构的所有值吗？ [英] C++ completely erase (or reset) all values of a struct?

问题描述

所以，我只是想知道我们如何完全擦除或重置一个结构以便可以重用？

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

我刚刚输入了此内容，就可以了：

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

推荐答案

您可以为其分配一个构造的临时变量：

You can just assign a constructed temporary to it:

Part my_struct;

my_struct = Part(); // reset

C ++ 11：

my_struct = {}; // reset

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