试图更好地学习指针数学我写了这段代码。其目的是增加指针投掷结构和打印它的成员。我知道如何打印成员更简单的方法,但真的想知道我的指针数学是如何搞砸的。谢谢。C指针数学结构
typedef struct{
int num;
int num2;
char *string;
} astruct ;
int main (int argc, const char * argv[])
{
astruct mystruct = { 1234, 4567,"aaaaaaa"};
astruct *address;
address = &mystruct;
// this does print 1234
printf("address 0x%x has value of:%i\n",address, *address);
address = address + sizeof(int);
//this does NOT print 4567
printf("address 0x%x has value of:%i\n",address, *address);
address = address + sizeof(int);
//this crashes the program, I wanted to print aaaaaaaa
printf("address 0x%x has value of:%s\n",address, **address);
return 0;
}
并不能保证这两个整数至少是连续的吗? – Alnitak 2011-04-09 15:12:31
该标准使得关于填充的mo保证。 (这就是所有*可能* s的原因) – hugomg 2011-04-09 19:22:10