blob: 72db76c4acbb07cf911c8d1c78ae61ee73f724b2 (
plain) (
blame)
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
|
#include "String.h"
#include <cstring>
/* Private */
void String::free() {
delete[] str;
}
void String::copyFrom(const String& other) {
str = new char[other.length];
strcpy(str, other.str);
length = other.length;
}
void String::moveFrom(String&& other) {
str = other.str;
other.str = nullptr;
length = other.length;
}
/* Public */
String::String(const char* str) {
length = strlen(str) + 1; // capture terminating zero
this->str = new char[length];
strcpy(this->str, str);
}
String::String() : String("") {}
String::String(const String& other) {
copyFrom(other);
}
String& String::operator=(const String& other) {
if (this != &other) {
free();
copyFrom(other);
}
return *this;
}
String::~String() {
free();
}
String::String(String&& other) {
str = other.str;
other.str = nullptr;
length = other.length;
}
String& String::operator=(String&& other) {
if (this != &other) {
free();
moveFrom(other);
}
return *this;
}
|
