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//
// A rust binding for the GSL library by Guillaume Gomez (guillaume1.gomez@gmail.com)
//
use std::default::Default;
/// The error handling form of the special functions always calculate an error estimate along with the value of the result.
/// Therefore, structures are provided for amalgamating a value and error estimate.
#[derive(Clone, Copy)]
pub struct Result {
/// Contains the value.
pub val: f64,
/// Contains an estimate of the absolute error in the value.
pub err: f64
}
impl Default for Result {
fn default() -> Result {
Result::new()
}
}
impl Result {
pub fn new() -> Result {
Result {
val: 0f64,
err: 0f64
}
}
}
/// In some cases, an overflow or underflow can be detected and handled by a function.
/// In this case, it may be possible to return a scaling exponent as well as an error/value pair in order to save the result from exceeding the dynamic range of the built-in types.
#[derive(Clone, Copy)]
pub struct ResultE10 {
/// Contains the value.
pub val: f64,
/// Contains an estimate of the absolute error in the value.
pub err: f64,
/// Exponent field such that the actual result is obtained as result * 10^(e10).
pub e10: i32
}
impl Default for ResultE10 {
fn default() -> ResultE10 {
ResultE10::new()
}
}
impl ResultE10 {
pub fn new() -> ResultE10 {
ResultE10 {
val: 0f64,
err: 0f64,
e10: 0i32
}
}
}