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#include <iostream>
#include <cstring>
struct DynamicString {
private:
char* str;
int size;
void copyFrom(const DynamicString& other) {
this->str = new char[other.size + 1];
strncpy(this->str, other.str, other.size + 1);
this->size = other.size;
}
void free() {
delete[] str;
}
public:
DynamicString(const char* str) {
size = strlen(str);
this->str = new char[size + 1];
strncpy(this->str, str, size + 1);
}
~DynamicString() {
free();
}
DynamicString& operator=(const DynamicString& other) {
if (this != &other) {
free();
copyFrom(other);
}
return *this;
}
const char* GetStr() {
return str;
}
};
int main() {
DynamicString s1("Hello");
DynamicString s2("World");
s1 = s2;
std::cout << s1.GetStr() << std::endl;
}
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