blob: dbc8e88f501a0d53de3bb2bc579dba264188b689 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/* string.h
*
*/
#ifndef _MYSTRING_
#define _MYSTRING_
#include <cstring>
#include <iostream>
class MyString
{
friend bool operator==(const MyString&, const MyString &);
friend std::ostream& operator<<(std::ostream&, const MyString &);
private:
char *str_;
int length_;
MyString(int);
public:
MyString();
MyString(char);
MyString(const char *);
MyString(const MyString &);
MyString& operator=(const MyString &);
~MyString();
int length() const;
int indexOf(char, int = 0) const;
bool isSubstring(const MyString &) const;
bool isSubstring(const char *) const;
MyString& concat(const MyString &);
MyString& concat(const char *);
void printStr(void) const;
bool operator!(void) const;
char& operator[](int);
char operator[](int) const;
operator char*(); /* outward class conversion into char * */
};
bool operator==(const MyString&, const MyString &);
std::ostream& operator<<(std::ostream&, const MyString &);
inline MyString::MyString()
{
length_ = 0;
str_ = new char[1];
str_[0] = '\0';
}
inline MyString::MyString(char ch)
{
length_ = 1;
str_ = new char[2];
str_[0] = ch;
str_[1] = '\0';
}
inline int MyString::length() const
{
return length_;
}
inline void MyString::printStr(void) const
{
std::cout << "length: " << length_ << ", value: \"" << str_ << "\"";
}
#endif
|
