Struct leveldb::string::String

pub struct String { /* private fields */ }

A LevelDB CString.

Like regular CStrings, it is a byte-array with no specified encoding. The length is also stored alongside the pointer, so this supports interior NULs.

Implementations

impl String

pub unsafe fn from_ptr(ptr: *mut c_char) -> Self

Make a String from a ptr.

This will use strlen to determine the string length.

Safety

The pointer must be a malloc-ed C string from the leveldb C api.

Panics

Panics if the ptr is null.

pub unsafe fn try_from_ptr(ptr: *mut c_char) -> Option<Self>

Make a String from a ptr.

Fallibly make a string from a ptr.

Safety

The pointer must be a malloc-ed C string from the leveldb C api.

pub unsafe fn try_from_ptr_len(ptr: *mut c_char, len: usize) -> Option<Self>

Make a String from a ptr and a len, fallibly.

Safety

• The pointer must be a malloc-ed C string from the leveldb C api.
• The length must be the length of the string, excluding the nul byte.

pub fn len(&self) -> usize

Get the len.

pub fn is_empty(&self) -> bool

Check if this is empty.

pub fn as_bytes(&self) -> &[u8]

Get the contents as a byte slice.

pub fn to_str(&self) -> Result<&str, Utf8Error>

Try to convert this into a str.

pub fn to_string_lossy(&self) -> Cow<'_, str>

Lossily convert this into a str.

Trait Implementations

impl Debug for String

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for String

fn drop(&mut self)

Executes the destructor for this type.