char *ft_strjoin(char const *s1, char const *s2)
{
char *tab;
int a;
int b;
b = 0;
a = ft_strlen1(s1) + ft_strlen1(s2);
tab = (char*)malloc(sizeof(char) * a);
if (tab == NULL || s1 == NULL || s2 == NULL)
return (NULL);
a = 0;
while (s1[a])
{
tab[b] = s1[a];
a++;
b++;
}
a = 0;
while (s2[a])
{
tab[b] = s2[a];
a++;
b++;
}
tab[b] = '\0';
return (char*)(tab);
}
char *ft_strrev(char *str)
{
char *debut;
char *fin;
char tmp;
debut = str;
fin = str + ft_strlen1(str) - 1;
while (debut < fin)
{
tmp = *debut;
*debut = *fin;
*fin = tmp;
debut++;
fin--;
}
return (str);
}
