exe7.13.cpp

C++ primer 4th edition 部分习题解答 前十章

#include<iostream>
#include<string>
#include<vector>
#include<bitset>
#include<math.h>
#include<cstring>
using namespace std;

//the third approch is to use an user 
//defined flag to detect whether it get to end
int getSum1(const int *begin,const int *end)
{
	int sum=0;
	for (;begin!=end;begin++)
	{
		sum+=*begin;
	}
	return sum;
}

int getSum2(const int a[],size_t size)
{
	int sum=0;
	for (size_t t=0;t!=size;++t)
	{
		sum+=a[t];
	}
	return sum;
}
int main()
{
	int i=0,j[10]={0,1,2,3,4,5,6,7,8,9};
	cout<<getSum1(j,j+10)<<endl;
	cout<<getSum2(j,10)<<endl;
//	cout<<getSum3(j,j+10)<<endl;
	return 0;	
}