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求结构体的成员变量的偏移量

2012-09-04 00:36:28| 分类： C++ | 标签： |举报 |字号大中小订阅

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#include <stdio.h>

int main()
{
   struct A{
int a;
long b;
char c;
double d;
   };

   unsigned offSet = &((struct A *)0)->c;
   printf("offSet=%d\n",offSet);
   return 0;
}

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