CSCE 121 Introduction to Program Design and Concepts - Texas A&M University. MyString.cpp

#include "MyString.h" #include iostream using std::ostream; using std::cout, std::endl; MyString::MyString(const MyString& string1) : size1(0), capacity1(1), str(nullptr) { this-size1 = strin (); this-capacity1 = ity(); this-str = new char[this-capacity1]; for (size_t i = 0; i this-size1; i++) { this-str[i] = [i]; } this-str[size1] = '0'; } MyString::MyString() : size1(0), capacity1(1), str(nullptr) { this-size1 = 0; this-capacity1 = 1; this-str = new char[1]; this-str[0] = '0'; } MyString::MyString(const char* val) : size1(0), capacity1(1), str(nullptr) { this-size1 = 0; this-capacity1 = 1; this-str = nullptr; if (val == nullptr) { this-size1 = 0; this-capacity1 = 1; this-str = new char[this-capacity1]; this-str[0] = '0'; } else { int i = 0; size_t newsize = 0; while (val[i] != '0') { newsize += 1; i += 1; } this-size1 = newsize; this-capacity1 = newsize + 1; this-str = new char[this-capacity1]; for (size_t j = 0; j this-size1; j++) { this-str[j] = val[j]; } this-str[this-size1] = '0'; } MyString::~MyString() { delete[] str; } void MyString::resize(size_t n) { this-capacity1 = n; char* temp = new char[n]; int index = 0; while (this-str[index] != '0') { temp[index] = str[index]; index+=1; } temp[index] = '0'; delete[] this-str; this-str = temp; this-capacity1 = n; } const char& MyString::at (size_t pos) const { if(pos this-length()) { return this-str[pos]; } else { throw std::out_of_range("Invalid position"); } } size_t MyString::capacity() const { return this-capacity1; } size_t MyString::length() const { return this-size1; } size_t MyString::size() const { return this-size1; }