C++基本ウィジェット-プログラマーへの第一歩

"Student.h"

#pragma once
#include <assert.h>

void Swap1(int* num1,int* num2)
{
	int tmp = *num1;
	*num1 = *num2;
	*num2 = tmp;
}
void Swap2(int* num1,int* num2)
{
	*num1 = (*num1)*(*num2);
	*num2 = (*num1)/(*num2);
	*num1 = (*num1)/(*num2);
}
void Swap3(int* num1,int* num2)
{
	*num1 = (*num1)+(*num2);
	*num2 = (*num1)-(*num2);
	*num1 = (*num1)-(*num2);
}
void Swap4(int* num1,int* num2)
{
	*num1 = (*num1)^(*num2);
	*num2 = (*num1)^(*num2);
	*num1 = (*num1)^(*num2);
}
void Swap5 (int& num1,int& num2)
{
	int tmp = num1;
	num1 = num2;
	num2 = tmp;
}

void PrimeNumber1()
{
	int i = 0;
	int j = 0;
	for (i = 100;i <= 200;i++)
	{
		for (j = 2;j < i;j++)
		{
			if (i%j == 0)
			{
				break;
			}
		}
		if (i == j)
		{
			cout<<i<<" ";
		}
	}
	cout<<endl;
}
void PrimeNumber2()
{
	int i = 0;
	int j = 0;
	for (i = 101;i <= 200;i += 2)
	{
		for (j = 3;j < i;j+=2)
		{
			if (i % j == 0)
			{
				break;
			}
		}
		if (j == i)
		{
			cout<<i<<" ";
		}
	}
	cout<<endl;
}

void MultiplicationTable()
{
	int i = 0;
	int j = 0;

	for (i = 1;i <= 9;i++)
	 {
		for (j = 1;j <= i;j++)
		{
			cout<<i<<" * "<<j<<" = "<<i*j<<" ";
		}
		cout<<endl;
	}
}

bool IsLeapYear(int year)
{
	assert(year > 0);

	if (((year % 4 == 0)&&(year % 100 != 0)) || (year % 400 == 0))
	{
		return true;
	} 
	else
	{
		return false;
	}
}

char* _strchr(const char* str,const char c)
{
	assert(str);
	
	while (*str != '\0')
	{
		if (*str == c)
		{
			return (char* )str;
		}
		str++;
	}

	return NULL;
}

int BinarySystem1(unsigned int num)
{
	int count = 0;

	while (num)
	{
		if (num % 2 == 1)
		{
			count++;
		}
		num = num/2;
	}
	return count;
}
int BinarySystem2(unsigned int num)
{
	int count = 0;

	while (num)
	{
		if ((num & 1) == 1)
		{
			count++;
		}
		num = num>>1;
	}
	return count;
}
int BinarySystem3(unsigned int num)
{
	int count = 0;

	do 
	{
		count++;//               1
		num = num & (num-1);
	} while (num);

	return count;
}

bool IsSame(int* arr1,int size1,int* arr2,int size2)
{
	assert(arr1);
	assert(arr2);

	int i = 0;
	int j = 0;
	for (i = 0;i < size1;i++)
	{
		for (j = 0;j < size2;j++)
		{
			if (arr1[i] == arr2[j])
			{
				return true;
			}
		}
	}
	return false;
}

void SwapArr(int* arr1,int* arr2,int size)
{
	assert(arr1);
	assert(arr2);

	int i = 0;
	int tmp = 0;
	for (i = 0;i < size;i++)
	{
		tmp = arr1[i];
		arr1[i] = arr2[i];
		arr2[i] = tmp;
	}
}

void UnEven_Even(unsigned int num)
{
	int arr1[16] = {0};
	int arr2[16] = {0};

	int i = 0;
	int j = 0;
	for (i = 0;i < 32;i += 2)
	{
		//      
		arr1[j] = ((num>>i)&1);
		j++;
	}
	j = 0;
	for (i = 1;i < 32; i += 2)
	{
		//      
		arr2[j] = ((num>>i)&1);
		j++;
	}

	for (i = 15;i >= 0;i--)
	{
		cout<<arr1[i]<<" ";
	}
	cout<<endl;
	for (i = 15;i >= 0;i--)
	{
		cout<<arr2[i]<<" ";
	}
	cout<<endl;
}

"Test.cpp"

#define _CRT_SECURE_NO_WARNINGS 1
#include <iostream>
using namespace std;
#include "student.h"

void Test1()
{
	//        
	int n1 = 5;
	int n2 = 8;
	Swap1(&n1,&n2);
	cout<<"n1 = "<<n1<<endl<<"n2 = "<<n2<<endl;

	int n3 = 6;
	int n4 = 10;
	Swap2(&n3,&n4);
	cout<<"n3 = "<<n3<<endl<<"n4 = "<<n4<<endl;

	int n5 = 15;
	int n6 = 20;
	Swap3(&n5,&n6);
	cout<<"n5 = "<<n5<<endl<<"n6 = "<<n6<<endl;

	int n7 = 65;
	int n8 = 38;
	Swap4(&n7,&n8);
	cout<<"n7 = "<<n7<<endl<<"n8 = "<<n8<<endl;

	int n9 = 32;
	int n10 = 23;
	Swap5(n9,n10);
	cout<<"n9 = "<<n9<<endl<<"n10 = "<<n10<<endl;

}
void Test2()
{
	//    1 ，        1   ，  20 ，        
	int money = 0;
	int total = 0;
	int empty = 0;
	cin>>money;
	empty = money;

	while(empty >= 2)
	{
		total = total + empty;
		empty = (empty%2) + (empty/2);
	}

	cout<<"     "<<total<<"   "<<endl;
}
void Test3()
{
	//  100-200     
	//PrimeNumber1();
	PrimeNumber2();
}
void Test4()
{
	//       
	MultiplicationTable();
}
void Test5()
{
	//             
	int year = 0;
	cin>>year;
	cout<<IsLeapYear(year)<<endl;
}
void Test6()
{
	//   strchr()
	char* p = "hello";
	char c = 'e';
	cout<<_strchr(p,c)<<endl;
}
void Test7()
{
	//             1   
	unsigned int num = 0;
	cin>>num;
	cout<<BinarySystem1(num)<<endl;
	cout<<BinarySystem2(num)<<endl;
	cout<<BinarySystem3(num)<<endl;
}
void Test8()
{
	//               
	int arr1[] = {1,2,3,4,5,6};
	int arr2[] = {8};
	int size1 = sizeof(arr1)/sizeof(arr1[0]);
	int size2 = sizeof(arr2)/sizeof(arr2[0]);
	cout<<IsSame(arr1,size1,arr2,size2)<<endl;
}
void Test9()
{
	//   A       B        
	int arr1[] = {1,2,3,4,5};
	int arr2[] = {1,3,5,7,9};
	int size1 = sizeof(arr1)/sizeof(arr1[0]);
	int size2 = sizeof(arr2)/sizeof(arr2[0]);
	SwapArr(arr1,arr2,size1);

	int i = 0;
	for (i = 0;i < size1;i++)
	{
		cout<<arr1[i]<<" ";
	}
	cout<<endl;
	for (i = 0;i < size2;i++)
	{
		cout<<arr2[i]<<" ";
	}
}
void Test10()
{
	//                 ，    
	unsigned int num = 0;
	cin>>num;
	UnEven_Even(num);
}
int main()
{
	//Test1();
	//Test2();
	//Test3();
	//Test4();
	//Test5();
	//Test6();
	//Test7();
	//Test8();
	//Test9();
	//Test10();
	system("pause");
	return 0;
}