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# ft\_str\_is\_printable

**Objective:**

Create a function that checks whether a string contains only printable characters. A printable character is any character from the ASCII range `32` (space) to `126` (tilde `~`). The function should return `1` if the string contains only printable characters (or is empty) and `0` otherwise.

***

**Turn-in Requirements:**

* **Directory:** `ex06/`
* **File:** `ft_str_is_printable.c`
* **Allowed Functions:** None

***

**Prototype:**

```c
int ft_str_is_printable(char *str);
```

***

**Implementation:**

Here’s how you can implement the function:

```c
// File: ft_str_is_printable.c

int ft_str_is_printable(char *str)
{
    int i;

    i = 0;
    while (str[i] != '\0') // Loop through each character of the string
    {
        // Check if the character is not within the printable ASCII range
        if (str[i] < ' ' || str[i] > '~')
            return (0); // Return 0 if a non-printable character is found
        i++;
    }
    return (1); // Return 1 if all characters are printable or the string is empty
}
```

***

**Explanation:**

* **Input Parameter:**\
  The function takes a single parameter, `str`, which is a pointer to the first character of the input string.
* **Loop through the string:**\
  The `while` loop iterates through the string until it reaches the null terminator (`\0`).
* **Check each character:**
  * The condition ensures that each character is within the printable range (`' '` to `'~'`).
  * If a character falls outside this range, the function immediately returns `0`.
* **Empty string:**\
  If the string is empty (i.e., `str[0] == '\0'`), the loop doesn’t execute, and the function returns `1`.

***

**Example Usage:**

```c
#include <stdio.h>

int ft_str_is_printable(char *str);

int main()
{
    printf("%d\n", ft_str_is_printable("Hello!"));          // Output: 1
    printf("%d\n", ft_str_is_printable("Hello\nWorld"));    // Output: 0
    printf("%d\n", ft_str_is_printable(""));                // Output: 1
    printf("%d\n", ft_str_is_printable("42Berlin~"));       // Output: 1
    printf("%d\n", ft_str_is_printable("\tHello"));         // Output: 0
    return 0;
}
```

* **Explanation of Outputs:**
  * `"Hello!"`: All characters are printable → returns `1`.
  * `"Hello\nWorld"`: Contains the non-printable newline character () → returns `0`.
  * `""`: Empty string → returns `1`.
  * `"42Berlin~"`: All characters are printable → returns `1`.
  * `"\tHello"`: Contains the non-printable tab character () → returns `0`.

***

**Notes:**

* Remove or comment out the `main` function when submitting your code.
* Ensure your code adheres to the Norminette coding standards.
* Avoid including unnecessary files in your directory.


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