如何检查结构是否初始化？ [英] How to check if a structure is initialized?

问题描述

我有一个要使用数据结构实现的表格。我的代码的重要部分如下所示（h是数据结构，表是存储其他结构的表）：

I have a table that I'm implementing with data structures. An important block of my code looks like this(h is a data structure, table is a table that stores other structures):

(h->table[hash(key, h->size)]

虽然我的代码正在运行时，某些表[i]将被初始化，而某些未初始化。每当我在尚未初始化的表[i]上测试代码时，我都会收到一个valgrind错误，基本上说我可以

While my code is running, some table[i]'s will be initialized, and some aren't. Whenever I test my code on a table[i] that hasn't been initialized yet, I get a valgrind error which basically says I can't work with an uninitialized array.

我的问题是，如何检查某个h-> table [i]是否已初始化？

My question is, how would I check to see if a certain h->table[i] is initialized or not?

推荐答案

要解决此问题，请始终在使用结构之前对其进行初始化（即使所有初始化都已将其设置为结构）到已知的空白 /未填充状态）。

You can't. To fix the problem, always initialize the struct before using it (even if all the initialization does is set the struct to a known "blank"/"not populated" state).

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