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CSCE 121 Introduction to Program Design and Concepts | MyString.cpp

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CSCE 121 Introduction to Program Design and Concepts | MyString.cpp #include "MyString.h" #include <iostream> using std::ostream; using std::cout, std::endl; MyString::MyString(const MyString& s ... tring1) : size1(0), capacity1(1), str(nullptr) { this->size1 = string1.size(); this->capacity1 = string1.capacity(); this->str = new char[this->capacity1]; for (size_t i = 0; i < this->size1; i++) { this->str[i] = string1.str[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; } [Show More]

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