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//
// GENERATED FILE
//
use super::*;
use crate::SpiceContext;
use f2rust_std::*;
/// Round to exact value
///
/// Round an input double precision number to a specified exact value
/// if the number and the value are equal to within some tolerance.
///
/// # Brief I/O
///
/// ```text
/// VARIABLE I/O DESCRIPTION
/// -------- --- --------------------------------------------------
/// NUMBER I Double precision number.
/// VALUE I Target value.
/// TOL I Tolerance.
///
/// The function returns VALUE whenever |NUMBER - VALUE| < TOL.
/// -
/// ```
///
/// # Detailed Input
///
/// ```text
/// NUMBER is an arbitrary double precision number.
///
/// VALUE is a target value.
///
/// TOL is a tolerance. NUMBER and VALUE are considered to
/// be equal if they differ by no more than this amount.
/// If TOL is negative, they are never considered equal.
/// ```
///
/// # Detailed Output
///
/// ```text
/// The function returns VALUE whenever |NUMBER - VALUE| < TOL, and
/// otherwise returns NUMBER. -
/// ```
///
/// # Exceptions
///
/// ```text
/// Error free.
/// ```
///
/// # Examples
///
/// ```text
/// C
/// C If the eccentricity is near one, make this a parabola.
/// C
/// ECC = EXACT ( ECC, 1.D0, 10.D-12 )
/// ```
///
/// # Author and Institution
///
/// ```text
/// J. Diaz del Rio (ODC Space)
/// W.L. Taber (JPL)
/// I.M. Underwood (JPL)
/// ```
///
/// # Version
///
/// ```text
/// - SPICELIB Version 1.1.0, 12-AUG-2021 (JDR)
///
/// Added IMPLICIT NONE statement.
///
/// Edited the header to comply with NAIF standard.
///
/// - SPICELIB Version 1.0.1, 10-MAR-1992 (WLT)
///
/// Comment section for permuted index source lines was added
/// following the header.
///
/// - SPICELIB Version 1.0.0, 31-JAN-1990 (IMU)
/// ```
pub fn exact(number: f64, value: f64, tol: f64) -> f64 {
let ret = EXACT(number, value, tol);
ret
}
//$Procedure EXACT ( Round to exact value )
pub fn EXACT(NUMBER: f64, VALUE: f64, TOL: f64) -> f64 {
let mut EXACT: f64 = 0.0;
//
// Just shorthand, really.
//
if (f64::abs((NUMBER - VALUE)) <= TOL) {
EXACT = VALUE;
} else {
EXACT = NUMBER;
}
EXACT
}