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14章问题1的代码 #2

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flowingwings opened this issue Aug 1, 2022 · 0 comments

flowingwings commented Aug 1, 2022

在书中，题目的要求是

creates a pointer to an integer, sets it to NULL, and then tries to dereference it

，也就是创建一个指向NULL的指针并且dereference它。根据C++ Dereferencing中的解释，dereference就是取值的意思，所以题目的要求应该是尝试访问这个指针，因此代码应该类似于：

int *p = NULL;
int i = *p;

而非在创建指针后将其free。

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