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/**
* hello.c
* To compile, use following commands:
* gcc -O -c -fPIC -o hello.o hello.c
* gcc -shared -o libhello.so hello.o
*/
int hello_add(int a, int b)
{
return a + b;
}
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$ gcc -O -c -fPIC -o hello.o hello.c
$ gcc -shared -o libhello.so hello.o
$ su
# echo /usr/local/lib > /etc/ld.so.conf.d/local.conf
# cp libhello.so /usr/local/lib
# /sbin/ldconfig
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/**
* hellotest.c
* To compile, use following commands:
* gcc -o hellotest -lhello hellotest.c
*/
#include <stdio.h>
int main()
{
int a = 3, b = 4;
printf("%d + %d = %d\n", a, b, hello_add(a,b));
return 0;
}
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$ gcc -o hellotest -lhello hellotest.c
$ ./hellotest
3 + 4 = 7
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#include<stdlib.h>
#include<iostream>
#include<string.h>
using namespace std;
int main(void)
{
FILE *fp, *fp2;
char buf[1024*300];
fp = fopen("in.txt", "rb");
fp2 = fopen("out.txt", "wb+");
fseek(fp, 0, SEEK_END);
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#include<stdio.h>
#include<stdlib.h>
#include<math.h>
int main(){
int i,j,*f,tmp,c=0;
long int n,bits;
const double PI=2*asin(1.0),E=exp(1.0);
scanf("%ld",&n);
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