什么是C ++中的SIGSEGV运行时错误？

本文介绍了什么是C ++中的SIGSEGV运行时错误？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我需要知道分段错误的根本原因，也可以告诉我如何处理它。

I need to know the root cause of the segmentation fault, and also can anyone tell me how to handle it.

推荐答案

维基百科提供了答案以及其他一些来源。

Wikipedia has the answer, along with a number of other sources.

segfault基本上意味着你使用指针做了一些坏事。这可能是一个segfault：

A segfault basically means you did something bad with pointers. This is probably a segfault:

char *c = NULL; ... *c; // dereferencing a NULL pointer

或者：

char *c = "Hello"; ... c[10] = 'z'; // out of bounds, or in this case, writing into read-only memory

char *c = new char[10]; ... delete [] c; ... c[2] = 'z'; // accessing freed memory

相同的基本原则在每种情况下 -

Same basic principle in each case - you're doing something with memory that isn't yours.