访问冲突强制转换为void *并返回 [英] access violation casting to void* and back

问题描述

尝试以下操作时，我将获得访问冲突读取位置.我在做什么错了?

I get an access violation reading location when I try the following. What am I doing wrong?

uint64_t hInt = 2901924954136;
void* hPoint = reinterpret_cast<void*>(hInt);

uint64_t hIntBack = *static_cast<uint64_t*>(hPoint); //get access violation 
here

推荐答案

我猜您打算将hInt的地址存储在hPoint中，而不是hInt的值中.

I am guessing you meant to store the address of hInt in hPoint, not the value of hInt.

uint64_t hInt = 2901924954136;
void* hPoint = reinterpret_cast<void*>(&hInt);
                                    // ^ addressof operator

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