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#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;
}
/* Public */
String::String(const char* str) {
length = strlen(str) + 1; // capture terminating zero
this->str = new char[length];
strcpy(this->str, str);
}
const char* String::get_cstr() const {
return 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) {
delete[] str;
str = other.str;
other.str = nullptr;
length = other.length;
}
return *this;
}
int String::compare(const String& other) const {
return strcmp(str, other.str);
}
char String::operator[](unsigned index) {
return str[index];
}
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