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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 + 1];
strncpy(str, other.str, other.length + 1);
length = other.length;
}
/* Public */
String::String(unsigned length) {
this->length = length;
str = new char[length + 1];
str[length] = '\0';
}
String::String(const char* str) {
length = strlen(str);
this->str = new char[length + 1]; // capture terminating zero
strncpy(this->str, str, length + 1);
}
const char* String::get_cstr() const {
return str;
}
unsigned String::get_length() const {
return length;
}
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;
}
void String::read(std::istream& istr) {
istr.read((char*)&length, sizeof(length));
istr.read(str, sizeof(char) * (length + 1));
}
void String::write(std::ostream& ostr) const {
ostr.write((char*)&length, sizeof(length));
ostr.write(str, sizeof(char) * (length + 1));
}
int String::compare(const String& other) const {
return strcmp(str, other.str);
}
char& String::operator[](unsigned index) {
return str[index];
}
std::istream& operator>>(std::istream& istr, String& event) {
istr.getline(event.str, 1024);
event.length = strlen(event.str);
return istr;
}
std::ostream& operator<<(std::ostream& ostr, const String& event) {
return ostr << event.str;
}
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