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string.cpp
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string.cpp
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#pragma once
#include <iostream>
#include <conio.h>
#include <iomanip>
#include "string.h"
String::String() {
pstring = nullptr;
length = 0;
}
String::String(const char* c_string) {
length = strlen(c_string);
pstring = new char[length + 1];
for (int i = 0; i <= length; i++) {
pstring[i] = c_string[i];
}
}
String::String(char symbol) {
length = 1;
pstring = new char[length + 1];
pstring[0] = symbol;
pstring[1] = '\0';
}
String::String(const String& string) {
length = string.length;
pstring = new char[length + 1];
for (int i = 0; i < length; i++) {
pstring[i] = string.pstring[i];
}
pstring[length] = '\0';
}
int String::get_length() {
return length;
}
char* String::get_string() {
char* copy_pstring = new char[length + 1];
strcpy(copy_pstring, pstring);
return copy_pstring;
}
void String::clear() {
if (pstring) {
delete[] pstring;
length = 0;
}
}
String::~String() {
if (pstring) {
delete[] pstring;
length = 0;
pstring = NULL;
}
}
String String::operator=(const String& string) {
length = string.length;
delete[] pstring;
pstring = new char[length + 1];
for (int i = 0; i < length; i++) {
pstring[i] = string.pstring[i];
}
pstring[length] = '\0';
return *this;
}