gistfile1.txt

#include <stdio.h>
#include <unistd.h>

void ft_putchar(char c)
{
    write(1, &c, 1);
}

int ft_strlen(char *s)
{
    int i;
    i = 0;
    while(s[i] != '\0')
    {
        i++;
    }
    return i;
}

void ft_putstr(char *s)
{
    int i;
    i = 0;
    while(s[i] != '\0')
    {
        write(1, &s[i], 1);
        i++;
    }
}

void ft_putnum(int n)
{
    char digits[20];
    int i;
    i = 0;

    while(n >= 10)
    {
        digits[i] = n % 10;
        i++;
        n /= 10;
    }
    digits[i] = n;
    i++;

    while(i > 0)
    {
        char c;
        i--;
        c = '0' + digits[i];
        write(1, &c, 1);
    }
}

void ft_swap(int *a, int *b)
{
    int temp = *a;
    *a = *b;
    *b = temp;
}

int str_index_of(char *s, char c)
{
    int i;
    i = 0;
    while (s[i] != '\0')
    {
        if (s[i] == c)
        {
            return i;
        }
        i++;
    }
    return -1;
}

void ft_rev_int_tab(int *tab, int size)
{
    int i;
    i = 0;
    while(i != size/2)
    {
        ft_swap(&tab[i], &tab[size - 1 - i]);
        i++;
    }
}

void ft_print_tab(int *tab, int size)
{
    int i;
    i = 0;
    while(i < size)
    {
        ft_putnum(tab[i]);
        ft_putchar(' ');
        i++;
    }
    ft_putchar('\n');
}

void ft_sort_int_tab(int *tab, int size)
{
    int n;
    n = 0;
    //printf("Sorting the array\n");
    while(n < size - 1)
    {
        int i;
        int min;
        min = n;
        i = n + 1;
        while(i < size)
        {
            if (tab[i] < tab[min])
            {
                min = i;
            }
            i++;
        }
        if(n != min)
        {
            ft_swap(&tab[n], &tab[min]);
        }
        n++;
        //ft_print_tab(tab, size);
    }
}

int main(void)
{
    char *s;
    char c;
    int i;
    int v[10] = { 5, 3, 7, 8, 4, 2, 1, 0, 9, 6 };

    s = "Help me!";
    c = 'p';
    i = str_index_of(s, c);

    ft_putstr("The index of letter ");
    ft_putchar(c);
    ft_putstr(" in the string ");
    ft_putstr(s);
    ft_putstr(" is ");
    ft_putnum(i);
    ft_putstr(".\n");
    printf("The index of letter %c in the string %s is %d.\n", c, s, i);
    ft_putchar('\n');
    printf("Table before reversing:\n");
    ft_print_tab(v, 10);
    ft_rev_int_tab(v, 10);
    printf("Table after reversing:\n");
    ft_print_tab(v, 10);
    ft_sort_int_tab(v, 10);
    printf("Sorted array\n");
    ft_print_tab(v, 10);

    return 0;
}