Commit: 49 - CTraining (svn)

練習用です。いろんなものがごちゃまぜです。

Commit MetaInfo

• Revision: 49 (tree)
• Time: 2015-10-06 09:26:41
• Author: bellyoshi

Log Message

(empty log message)

Change Summary

• modified: TeachYourSelf/dateclass.exe
• modified: TeachYourSelf/array.BAK
• modified: TeachYourSelf/array.exe
• modified: TeachYourSelf/strtype.cpp
• modified: TeachYourSelf/dateclass.cpp
• modified: TeachYourSelf/array.cpp
• modified: TeachYourSelf/strtype.obj
• modified: TeachYourSelf/strtype.BAK
• modified: TeachYourSelf/dateclass.obj
• modified: TeachYourSelf/strtype.exe
• modified: TeachYourSelf/array.obj

Incremental Difference

--- TeachYourSelf/strtype.cpp	(revision 48)
+++ TeachYourSelf/strtype.cpp	(revision 49)
@@ -8,9 +8,10 @@
 	int len;
 public:
 	strtype(char *ptr);
+	strtype(const strtype &s);
 	~strtype();
-	void show();
-	friend char *get_string(strtype *s);
+	char *get(){return p;}
+	int getlen(){return len;}
 };
 
 strtype::strtype(char *ptr)
@@ -26,6 +27,17 @@
 	this->len = l;
 }
 
+strtype::strtype(const strtype &s)
+{
+	len = s.len;
+	p = new char[len];
+	if (!p){
+		cout << "メモリ割り当てエラー";
+		exit(1);
+	}
+	strncpy(p, s.p,len);
+}
+
 strtype::~strtype()
 {
 	cout << "pを解放する。\n";
@@ -32,23 +44,16 @@
 	delete p;
 }
 
-char *get_string(strtype *s)
+void show(strtype x)
 {
-	return s->p;
+	cout << x.get() << "-長さ:" << x.getlen() << "\n";
 }
 
-void strtype::show()
-{
-	cout << p << "-長さ:" << len << "\n";
-}
-
 int main()
 {
 	strtype s1("This is a test."), s2("I like C++.");
-	s1.show();
-	s2.show();
-	cout << get_string(&s1) << "\n";
-	cout << get_string(&s2) << "\n";
+	show(s1);
+	show(s2);
 	
 	return 0;
 }
\ No newline at end of file

--- TeachYourSelf/dateclass.cpp	(revision 48)
+++ TeachYourSelf/dateclass.cpp	(revision 49)
@@ -1,10 +1,13 @@
 #include <iostream>
 #include <cstdio>
+#include <time.h>
+
 using namespace std;
 
 class date {
 	int day, month , year;
 public:
+	date(time_t t);
 	date(char *str);
 	date(int m,int d, int y){
 		day = d;
@@ -20,14 +23,23 @@
 {
 	sscanf(str, "%d%*c%d%*c%d", &month, &day, &year);
 }
-
+date::date(time_t t)
+{
+	struct tm *ptml;
+	ptml = localtime(&t);
+	day = ptml->tm_mday;
+	month = ptml->tm_mon + 1;
+	year = ptml->tm_year + 1900;
+}
 int main()
 {
 	date sdate("12/31/99");
 	date idate(12,31,99);
+	date ndate(time(NULL));
 	
 	sdate.show();
 	idate.show();
+	ndate.show();
 	
 	return 0;
 }
\ No newline at end of file

--- TeachYourSelf/array.cpp	(revision 48)
+++ TeachYourSelf/array.cpp	(revision 49)
@@ -4,51 +4,50 @@
 
 class arrays {
 	int size;
-	char *p;
+	int *p;
 public:
-	arrays(int num);
+	arrays(int sz){
+		p = new int[sz];
+		if(!p) exit(1);
+		size = sz;
+		cout << "通常のコンストラクタを使う。\n";
+	}
 	~arrays(){delete [] p;}
-	char &put(int i);
-	char get(int i);
-};
-
-arrays::arrays(int num)
-{
-	p = new char[num];
-	if(!p){
-		cout << "メモリ割り当てエラー\n";
-		exit(1);
+	arrays(const arrays &a);
+	void put(int i,int j){
+		if (i >=0 && i < size) p[i] = j;
 	}
-	size = num;
-}
-char &arrays::put(int i)
-{
-	if(i < 0 || i >size-1){
-		cout << "境界エラー!!!\n";
-		exit(1);
+	int get(int i){
+		return p[i];
 	}
-	return p[i];
-}
+};
 
-char arrays::get(int i)
+arrays::arrays(const arrays &a)
 {
-	if(i < 0 || i > size-1){
-		cout << "境界エラー!!!\n";
-		exit(1);
+	size = a.size;
+	p = new int[a.size];
+	if(!p)exit(1);
+	for(int i = 0;i < a.size; i++){
+		p[i]  = a.p[i];
 	}
-	return p[i];
+	cout << "コピーコンストラクタを使う。\n";
 }
 
 int main()
 {
-	arrays a(10);
-	a.put(3) = 'x';
-	a.put(2) = 'R';
-	
-	cout << a.get(3) << a.get(2);
+	arrays num(10);
+	for(int i = 0; i < 10; i++){
+		num.put(i, i);
+	}
+	for(int i = 0; i < 10; i++){
+		cout << num.get(i) << ' ';
+	}
 	cout << "\n";
+	arrays x = num;
+	for(int i = 0; i < 10; i++){
+		cout << x.get(i) << ' ';
+	}
+	cout << "\n";
 	
-	a.put(11) = 'l';
-	
 	return 0;
 }
\ No newline at end of file