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extern "C"ÎÊÌâ

/*-----------c.h--------------*/
#ifndef _C_H_
#define _C_H_
extern "C" int add(int x, int y);
#endif

/*-----------c.c--------------*/
int add(int x, int y){
return x+y;
}

/*-----------cpp.cpp--------------*/
#include "c.h"
void main()
{
add(1, 0);
}


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/*-----------c.cpp--------------*/
int add(int x, int y){
return x+y;
}

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/*-----------c.cpp--------------*/
int add(int x, int y){
return x+y;
}

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C/C++ code:
/*-----------c.h--------------*/
extern int add(int x, int y);


/*-----------c.c--------------*/
int add(int x, int y){
return x+y;
}


/*-----------cpp.cpp--------------*/
#include "c.h"

int main()
{
add(1, 0);
return 0;
}

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C/C++ code:
/*-----------c.h--------------*/
#ifndef _C_H_
#define _


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{
  char *p = "haha";
  return p;
}
char * fun2()
{
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struct s1 {
char ch, *ptr;
union {
short a, b;
unsigned int c:2, d:1;
}
struct s1 *next;
};


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