#include <iostream>
#include <cstring>
using namespace std;
template <class T>
T& swaps(T &a,T &b,int n){
    for(int i = 0;i<n;i++){
        a[i] = a[i] + b[i];
        cout<<"i:"<<i<<" "<<a[i]<<endl;
    }
    return a;
}
int main(void){
    int a[5] = {1,2,3,4,5};
    int b[5] = {100,200,300,400,500},*p;
    for(int i = 0;i<2;i++){
        p = swaps(a,b,2);
    }
    for(;p<a+5;p++){
        cout<<*p<<endl;
    }
    return 0;
}
//out:  
i:0 101
i:1 202
i:0 201
i:1 402
201  402  3 4 5

#!/bin/sh
cn=10
dir="/data/bin/dksCmd"
lns="dksCmd"
for((i=1;i<=cn;i++));
do
tp=$(printf "%02d" $i)
cmd_src=${dir}${tp}
lnst=${lns}${tp}
echo $cmd_src $lnst
touch $cmd_src
chmod +x $cmd_src
ln -s $cmd_src $lnst
done

#!/bin/sh
cn=10
lib_dir="/data/lib/libdks"
lns="libdks"
so_suffix=".so"
for((i=1;i<=cn;i++));
do
tp=$(printf "%02d" $i)
lib_src=${lib_dir}${tp}${so_suffix}
lnst=${lns}${tp}${so_suffix}
echo $lib_src $lnst

touch $lib_src
chmod +x $lib_src
ln -s $lib_src $lnst
done

int dks_add(int a,int b){
        return a+b;
}

#include <stdio.h>
#include <stdlib.h>

int main(void){
    int a = 20;
    int b = 30;
    int c = dks_add(a,b);
    printf("line:%d  c:%d\n",__LINE__,c);
    return 0;
}

gcc -fPIC -shared add.c -o libadd01.so
gcc  -o main main.c -L./ -ladd01