#include <stdio.h>
int ft_strlen(char *str)
{
int len;
len = 0;
while (str[len] != '\0')
{
len++;
}
return (len);
}
int main(void)
{
char str[] = "Hello!";
int len;
len = ft_strlen(str);
printf("str : %s\nlen : %d\n", str, len);
return (0);
}
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