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C++基础语法54存疑 #149

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LdleFlowersLand opened this issue Mar 23, 2024 · 0 comments
Open

C++基础语法54存疑 #149

LdleFlowersLand opened this issue Mar 23, 2024 · 0 comments

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@LdleFlowersLand
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//使用前面的类ADT，创建一个数组
auto adt_p = new ADT[10];
cout << *((int*)(adt_p)-2)<< endl; 
cout << *((int*)(adt_p)-1)<< endl;

结果为：
10
0
说明并不是在数组前分配4个字节，而是分配了8(2*sizeof(int))个字节
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@LdleFlowersLand