const char *在C ++中 [英] const char* 's in C++

问题描述

C ++中的字符串表达式如何工作？

How does string expressions in C++ work?

请考虑：

#include <iostream>
using namespace std;

int main(int argc, char *argv[]){

    const char *tmp="hey";
    delete [] tmp;

    return 0;
}

hey表达式存储在何处以及如何存储，当我试图删除它？

Where and how is the "hey" expression stored and why is there segmentation fault when I attempt to delete it?

推荐答案

它存储的是留给编译器来决定在这个然而，对你来说并不重要 - 如果你不用 new 分配内存，尝试用解除分配它是不太好的，删除。您不能

Where it's stored is left to the compiler to decide in this (somewhat special) case. However, it doesn't really matter to you - if you don't allocate memory with new, it's not very nice to attempt to deallocate it with delete. You cannot delete memory allocated in the way you have allocated it.

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