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#include <iostream>
using namespace std;
void Out(int* p)
{
int j = 11;
p = &j;
*p = 12;
cout<<*p<<endl;
}
int main(int argc,char*argv[])
{
int i = 10;
Out(&i);
cout<<"i="<<i<<endl;
cin>>i;
}
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void GetMemory(char *p)
{
// ´«µÝ½øÀ´µÄµÄֵʹµÃ*p==NULL
// ÕâÀïÐ޸ĵÄÊÇÕâ¸öº¯ÊýÄÚµÄÁÙʱָÕë±äÁ¿pµÄÖµ
p = (char *)malloc(100);
}
void Test(void)
{
char *str = NULL;
// ´«µÝ½øÈ¥µÄÊÇstrµÄÖµNULL
GetMemory(str);
// ÕâÀïstrÖ¸Õë² ......
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typedef struct {
int level; /* fill/empty level of buffer */
unsigned flags; /* File status flags */
char fd; /* File descriptor */
unsigned char hold ......
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