#include <iostream>
#include <fstream>
#include <string>
#include <ctime>

using namespace std;

void Write()
{
    srand(time(0));
    string str;
    ofstream fout;
    for (int i(0); i < 32000000; i++)
    {
        char a = rand() % 57 + 65;
        str.push_back(a);
    }
    fout.open("C:\\Users\\Arclight\\Desktop\\Workplace C++\\Labs\\EVM\\laba3\\test.txt");
    auto start = clock();
    if (fout.is_open())
        fout << str;
    auto end = clock();
    auto resWrite = difftime(end, start);
    cout << "Time to write:" << resWrite / CLOCKS_PER_SEC << endl;
    cout << "Write MB/s = " << 30.5 / (resWrite / CLOCKS_PER_SEC) << endl;
    fout.close();
}
void Read()
{
    FILE* read;
    fopen_s(&read, "C:\\Users\\Arclight\\Desktop\\Workplace C++\\Labs\\EVM\\laba3\\test.txt", "r");
    long size;
    size_t result;
    size = 32000000;
    char* buffer;
    buffer = (char*)malloc(sizeof(char) * size);
    auto start = clock();
    result = fread(buffer, 1, size, read);
    auto end = clock();
    auto resRead = difftime(end, start);
    cout << "Time to read:" << resRead / CLOCKS_PER_SEC << endl;
    cout << "Read MB/s = " << 30.5 / (resRead / CLOCKS_PER_SEC) << endl;
    cout << buffer[322];
    fclose(read);
    free(buffer);
}
int main()
{
    setlocale(LC_ALL, "Russian");
    Write();
    Read();
    return 0;
}