Struct CStringView 

#[repr(C)]
pub struct CStringView {
    pub string: *const c_char,
    pub length: u32,
}

This is called rr_string in the C API.

NOTE: CStringView is NOT an Option, and there is no difference between null and “”.

Fields

string: *const c_char

length: u32

Implementations

impl CStringView

pub fn as_maybe_empty_str<'a>( &'a self, argument_name: &'a str, ) -> Result<&'a str, CError>

Error if the string is not valid UTF8, or is null and non-zero in length.

May return the empty string.

pub fn as_optional_str<'a>( &'a self, argument_name: &'a str, ) -> Result<Option<&'a str>, CError>

Treat the empty string “” as None.

pub fn as_nonempty_str<'a>( &'a self, argument_name: &'a str, ) -> Result<&'a str, CError>

Error if the string was empty.

pub fn is_empty(&self) -> bool

Is this the “” string?

NOTE: CStringView is NOT an Option, and there is no difference between null and “”.

Trait Implementations

impl Clone for CStringView

fn clone(&self) -> CStringView

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CStringView

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

Formats the value using the given formatter.

impl Copy for CStringView