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//
// GENERATED FILE
//
use super::*;
use crate::SpiceContext;
use f2rust_std::*;
/// Is an integer even?
///
/// Determine whether an integer is even.
///
/// # Brief I/O
///
/// ```text
/// VARIABLE I/O DESCRIPTION
/// -------- --- --------------------------------------------------
/// IVAL I The integer in question.
///
/// The function returns .TRUE. if IVAL is even, otherwise .FALSE.
/// ```
///
/// # Detailed Input
///
/// ```text
/// IVAL is the integer to be tested for evenness.
/// ```
///
/// # Detailed Output
///
/// ```text
/// The function returns .TRUE. if IVAL is even, .FALSE. if IVAL is
/// odd.
/// ```
///
/// # Exceptions
///
/// ```text
/// Error free.
/// ```
///
/// # Examples
///
/// ```text
/// Let ENDPTS contain a series of endpoints,
///
/// a , b , ..., a , b
/// 1 1 n n
///
/// representing an ordered collection of disjoint intervals,
///
/// a < b < a
/// i - i i+1
///
/// The following code fragment uses EVEN to determine whether
/// an arbitrary value X is contained in any of the intervals.
///
/// CONTAINED = .FALSE.
///
/// DO I = 1, N-1
/// IF ( X .GE. ENDPTS(I) .AND. X .LE. ENDPTS(I+1) ) THEN
/// CONTAINED = ( .NOT. EVEN ( I ) )
/// END IF
/// END DO
/// ```
///
/// # 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, 08-APR-2021 (JDR)
///
/// Added IMPLICIT NONE statement.
///
/// Changed the input argument name "I" to "IVAL" for consistency
/// with other routines.
///
/// Edited the header to comply with NAIF standard. Removed
/// unnecessary $Revisions section.
///
/// - SPICELIB Version 1.0.1, 10-MAR-1992 (WLT)
///
/// Comment section for permuted index source lines was added
/// following the header.
///
/// - SPICELIB Version 1.0.0, 31-JAN-1990 (IMU)
/// ```
pub fn even(ival: i32) -> bool {
let ret = EVEN(ival);
ret
}
//$Procedure EVEN ( Is an integer even? )
pub fn EVEN(IVAL: i32) -> bool {
let mut EVEN: bool = false;
//
// Self-explanatory.
//
EVEN = (intrinsics::MOD(IVAL, 2) == 0);
EVEN
}