kirilStrPractice

#include <iostream>

int strlenM(const char* str)
{
    int len{ 0 };

    while ( *str++ )
    {
        ++len;
    }

    return len;
}

// "Test string to find length\0"X
void printStr(const char* str) // str -> T
{
    //int len{ strlenM(str) };

    //for (int i{ 0 }; i < strlenM(str); ++i)
    //{
    //  std::cout << str[i];
    //}

    while (*str) // (str++) - strT -> e
    {
        std::cout << *str++;
    }
}

/*
*           *
src - > TEST\0[][][][][]
                    *
dest -> [T][E][S][T][\0][][][]
*/




char* strcpyM(const char* src, char* dest)
{
    char* destOrig{ dest };

    while (*src)
    {
        *dest++ = *src++;
    }
    *dest = '\0';

    return destOrig;
}

char* strncpyM(const char* src, int destSize, char* dest)
{
    char* destOrig{ dest };
    while (*src and --destSize)
    {
        *dest++ = *src++;
    }
    *dest = '\0';

    return destOrig;
}

// src = "world!"
// dest ='Hello "

// dest = "Hello world!"

char* strcatM(const char* src, char* dest)
{
    char* destOrig{ dest };

    while (*dest)
    {
        ++dest;
    }
    //dest += strlenM(dest);

    while (*src)
    {
        *dest++ = *src++;
    }
    *dest = '\0';

    return destOrig;
}

char* strncatM(const char* src, int destSize, char* dest)
{
    char* destOrig{ dest };
    while (*dest)
    {
        ++dest;
    }

    while (*src and --destSize)
    {
        *dest++ = *src++;
    }
    *dest = '\0';

    return destOrig;
}

int main()
{
    const int num{ 42 };
    const int* ptrI{ &num };

    double temp{ 36.6 };
    double* ptrD{ &temp };

    char str[150]{ "Hello " };
    char str1[150]{"world!:)"};

    char* str2{ new char[6] };

    //str -> char* const str;


    //str2[0] = 'Z';

    //std::cout << str2 << '\n';

    std::cout << strlenM(str) << '\n';
    //std::cout << str << '\n';

    //str[0] = 'F';
    //printStr(str);
    //std::cout << strlenM(strncpyM(str, 6, str2)) << '\n';
    //printStr(str2);

    strcatM(str1, str);
    printStr(str);

    delete[] str2;
    return 0;
}