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//
// GENERATED FILE
//
use super::*;
use crate::SpiceContext;
use f2rust_std::*;
/// Julian Date of 1900.0 JAN 0.5
///
/// Return the Julian Date of 1899 DEC 31 12:00:00 (1900 JAN 0.5).
///
/// # Brief I/O
///
/// ```text
/// The function returns the Julian Date of 1899 DEC 31 12:00:00
/// (1900 JAN 0.5).
/// ```
///
/// # Detailed Output
///
/// ```text
/// The function returns 2415020.0, the Julian Date corresponding
/// to 1899 DEC 31 12:00:00 (1900 JAN 0.5).
/// ```
///
/// # Exceptions
///
/// ```text
/// Error free.
/// ```
///
/// # Particulars
///
/// ```text
/// The function always returns the constant value shown above.
/// ```
///
/// # Examples
///
/// ```text
/// The following code fragment illustrates the use of J1900.
///
/// C
/// C Convert Julian Date to UTC seconds past the reference
/// C epoch (J1900).
/// C
/// SPREF = ( JD - J1900() ) * SPD()
/// ```
///
/// # Author and Institution
///
/// ```text
/// J. Diaz del Rio (ODC Space)
/// W.L. Taber (JPL)
/// I.M. Underwood (JPL)
/// ```
///
/// # Version
///
/// ```text
/// - SPICELIB Version 1.0.2, 08-JUL-2020 (JDR)
///
/// 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 (WLT) (IMU)
/// ```
pub fn j1900() -> f64 {
let ret = J1900();
ret
}
//$Procedure J1900 ( Julian Date of 1900.0 JAN 0.5 )
pub fn J1900() -> f64 {
let mut J1900: f64 = 0.0;
J1900 = 2415020.0;
J1900
}