Поиск слова в строке

void find_word()
{
    char *s1 = "the sun is hot";
    char *s2 = "my favourite cake";
    char *s3 = "she did this task";
    cout << "1  -  " << s1;
    cout << "\n2  -  " << s2;
    cout << "\n3  -  " << s3;
    char *i_choose = s2;      //choose the string
    char *word = "cake";     //enter the word to find
    cout << "\nI choose string 2.\nI will find, if there is a word \"" << word << "\".";
    int i = 0, j = 0, count = 0, k = 0;
    char *temp;
    while (i < strlen(i_choose))
    {
        while (i_choose[k] != ' ')
        {
            count++;
            k++;
        }
        k++;
        temp = new char [count];
        while (i_choose[i] != ' ')
        {
            *(temp+j) = i_choose[i];
            i++;
            j++;
        }
        
        cout << endl << temp << endl;
        delete temp;
        count = 0;
        i++;
        j = 0;
    }
}