Struct crfsuite_sys::tag_crfsuite_params

#[repr(C)]
pub struct tag_crfsuite_params {
    pub internal: *mut c_void,
    pub nref: c_int,
    pub addref: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t) -> c_int>,
    pub release: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t) -> c_int>,
    pub num: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t) -> c_int>,
    pub name: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, i: c_int, ptr_name: *mut *mut c_char) -> c_int>,
    pub set: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, name: *const c_char, value: *const c_char) -> c_int>,
    pub get: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, name: *const c_char, ptr_value: *mut *mut c_char) -> c_int>,
    pub set_int: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, name: *const c_char, value: c_int) -> c_int>,
    pub set_float: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, name: *const c_char, value: floatval_t) -> c_int>,
    pub set_string: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, name: *const c_char, value: *const c_char) -> c_int>,
    pub get_int: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, name: *const c_char, ptr_value: *mut c_int) -> c_int>,
    pub get_float: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, name: *const c_char, ptr_value: *mut floatval_t) -> c_int>,
    pub get_string: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, name: *const c_char, ptr_value: *mut *mut c_char) -> c_int>,
    pub help: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, name: *const c_char, ptr_type: *mut *mut c_char, ptr_help: *mut *mut c_char) -> c_int>,
    pub free: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, str: *const c_char)>,
}

CRFSuite parameter interface.

Fields

internal: *mut c_void

Pointer to the instance data (internal use only).

nref: c_int

Reference counter (internal use only).

addref: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t) -> c_int>

Increment the reference counter.

params The pointer to this parameter instance.

Returns the reference count after this increment.

release: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t) -> c_int>

Decrement the reference counter.

params The pointer to this parameter instance.

Returns the reference count after this operation.

num: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t) -> c_int>

Obtain the number of available parameters.

params The pointer to this parameter instance.

Returns the number of parameters maintained by this object.

name: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, i: c_int, ptr_name: *mut *mut c_char) -> c_int>

Obtain the name of a parameter.

• params The pointer to this parameter instance.
• i The parameter index.
• ptr_name *ptr_name points to the parameter name.

Returns int \c 0 always.

set: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, name: *const c_char, value: *const c_char) -> c_int>

Set a parameter value.

• params The pointer to this parameter instance.
• name The parameter name.
• value The parameter value in string format.

Returns int \c 0 if the parameter is found, \c -1 otherwise.

get: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, name: *const c_char, ptr_value: *mut *mut c_char) -> c_int>

Get a parameter value.

• params The pointer to this parameter instance.
• name The parameter name.
• ptr_value *ptr_value presents the parameter value in string format.

Returns int \c 0 if the parameter is found, \c -1 otherwise.

set_int: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, name: *const c_char, value: c_int) -> c_int>

Set an integer value of a parameter.

• params The pointer to this parameter instance.
• name The parameter name.
• value The parameter value.

Returns int \c 0 if the parameter value is set successfully, \c -1 otherwise (unknown parameter or incompatible type).

set_float: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, name: *const c_char, value: floatval_t) -> c_int>

Set a float value of a parameter.

• params The pointer to this parameter instance.
• name The parameter name.
• value The parameter value.

Returns int \c 0 if the parameter value is set successfully, \c -1 otherwise (unknown parameter or incompatible type).

set_string: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, name: *const c_char, value: *const c_char) -> c_int>

Set a string value of a parameter.

• params The pointer to this parameter instance.
• name The parameter name.
• value The parameter value.

Returns int \c 0 if the parameter value is set successfully, \c -1 otherwise (unknown parameter or incompatible type).

get_int: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, name: *const c_char, ptr_value: *mut c_int) -> c_int>

Get an integer value of a parameter.

• params The pointer to this parameter instance.
• name The parameter name.
• ptr_value The pointer to a variable that receives the integer value.

Returns int \c 0 if the parameter value is obtained successfully, \c -1 otherwise (unknown parameter or incompatible type).

get_float: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, name: *const c_char, ptr_value: *mut floatval_t) -> c_int>

Get a float value of a parameter.

• params The pointer to this parameter instance.
• name The parameter name.
• ptr_value The pointer to a variable that receives the float value.

Returns int \c 0 if the parameter value is obtained successfully, \c -1 otherwise (unknown parameter or incompatible type).

get_string: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, name: *const c_char, ptr_value: *mut *mut c_char) -> c_int>

Get a string value of a parameter.

• params The pointer to this parameter instance.
• name The parameter name.
• ptr_value *ptr_value presents the parameter value.

Returns int \c 0 if the parameter value is obtained successfully, \c -1 otherwise (unknown parameter or incompatible type).

help: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, name: *const c_char, ptr_type: *mut *mut c_char, ptr_help: *mut *mut c_char) -> c_int>

Get the help message of a parameter.

• params The pointer to this parameter instance.
• name The parameter name.
• ptr_type The pointer to \c char* to which this function store the type of the parameter.
• ptr_help The pointer to \c char* to which this function store the help message of the parameter.

Returns int \c 0 if the parameter is found, \c -1 otherwise.

free: Option<unsafe extern "C" fn(params: *mut crfsuite_params_t, str: *const c_char)>

Free the memory block of a string allocated by this object.

• params The pointer to this parameter instance.
• str The pointer to the string.

Trait Implementations

impl Debug for tag_crfsuite_params

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Copy for tag_crfsuite_params

impl Clone for tag_crfsuite_params

fn clone(&self) -> tag_crfsuite_params

Returns a copy of the value.

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

Performs copy-assignment from source.