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int ch;
FILE * fp;
fp = fopen ("test","r");
while ((ch = getc(fp) != EOF)
{
putchar (ch);
}


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#include <iostream>
using namespace
std;

extern "C" { int g_inta; }

int main (void)
{
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int change(int x,int y)
{
int temp=x;
x=y;
y=temp;
}
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int change(int *p,int *q)
{
int temp=*p;
*p=*q;
*q=temp;
}
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int change(int &x,int &y)
{
int temp=x;
x=y;
y=temp;
}
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