string.cpp

#ifndef VEC_CPP
#define VEC_CPP

#include "util.h"
#include "vec.cpp"

String::String() : s(nullptr) {};

String::String(const char *str) {
    int l = len(str);
    this->s = new char[l + 1];
    // copy into s char by char
    for(uint i = 0 ; i < l+1; i++) {
        this->s[i] = (i == l) ? _null_char : str[i];
    }
}

String::String(const String &strc) {
    uint l = str->size();
    if(l) {
        this->s = new char[l + 1];
        for(uint i = 0 ; i < l+1; i++) {
            this->s[i] = (i == l) ? _null_char : str[i];
        }
    } else {
        this->s = nullptr;
    }
}

String::~String() {
    if(this->s) {
        delete[] this->s;
    }
}

String &String::operator=(const String &strc) {
    if (strc == *this) { return *this; }
    uint l = strc->size();
    
    char *arr = new char[l + 1];
    for(uint i = 0 ; i < l+1; i++) {
        this->s[i] = (i == l) ? _null_char : strc[i];
    }

    delete[] this->s;
    this->s = arr;

    return *this;
}

String &String::operator=(const char *strc) {
    uint l = len(strc);
    
    char *arr = new char[l + 1];
    for(uint i = 0 ; i < l+1; i++) {
        arr[i] = (i == l) ? _null_char : strc[i];
    }
    
    delete[] this->s;
    this->s = arr;
    
    return *this;
}

String &String::operator+=(const char *strc) {
    uint l = len(strc);
    uint full_l = this.size() + l;
    
    char *arr = new char[full_l + 1];
    
    for (uint i = 0; i < this->size(); i++) {
        arr[i] = this->s[i];
    }
    for (uint j = m_length; j < totalLength; j++) {
        arr[j] = strc[j - this->size()];
    }
    arr[full_l] = _null_char;
    
    delete[] this->s;
    this->s = arr;
    
    return *this;
}

String &String::operator+=(const String &strc) {
    uint full_l = this->size() + strc.size();
    char *arr = new char[full_l + 1];
    
    for (int i = 0; i < this->size(); i++) {
        arr[i] = this->s[i];
    }
    for (int j = this->size(); j < full_l; j++) {
        arr[j] = strc->s[j - this->size()];
    }
    arr[full_l] = _null_char;
    
    delete[] this->s;
    this->s = arr;
    
    return *this;
}

String::size() { return len(this->s) };

#endif