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//
// GENERATED FILE
//
use super::*;
use crate::SpiceContext;
use f2rust_std::*;
/// Vector subtraction, general dimension
///
/// Compute the difference between two double precision vectors of
/// arbitrary dimension.
///
/// # Brief I/O
///
/// ```text
/// VARIABLE I/O DESCRIPTION
/// -------- --- --------------------------------------------------
/// V1 I First vector (minuend).
/// V2 I Second vector (subtrahend).
/// NDIM I Dimension of V1, V2, and VOUT.
/// VOUT O Difference vector, V1 - V2.
/// ```
///
/// # Detailed Input
///
/// ```text
/// V1 is a double precision vector of arbitrary dimension which
/// is the minuend (i.e. first or left-hand member) in the
/// vector subtraction.
///
/// V2 is a double precision vector of arbitrary dimension which
/// is the subtrahend (i.e. second or right-hand member) in
/// the vector subtraction.
///
/// NDIM is the dimension of V1 and V2 (and VOUT).
/// ```
///
/// # Detailed Output
///
/// ```text
/// VOUT is a double precision n-dimensional vector which
/// represents the vector difference, V1 - V2.
/// ```
///
/// # Exceptions
///
/// ```text
/// Error free.
/// ```
///
/// # Particulars
///
/// ```text
/// For each value of the index I from 1 to NDIM, this routine
/// performs the following subtraction:
///
/// VOUT(I) = V1(I) - V2(I)
///
/// No error checking is performed to guard against numeric overflow
/// or underflow.
/// ```
///
/// # Examples
///
/// ```text
/// The numerical results shown for this example may differ across
/// platforms. The results depend on the SPICE kernels used as
/// input, the compiler and supporting libraries, and the machine
/// specific arithmetic implementation.
///
/// 1) Define two sets of n-dimensional vectors and compute the
/// difference from each vector in first set with the
/// corresponding vector in the second set.
///
///
/// Example code begins here.
///
///
/// PROGRAM VSUBG_EX1
/// IMPLICIT NONE
///
/// C
/// C Local parameters.
/// C
/// INTEGER NDIM
/// PARAMETER ( NDIM = 4 )
///
/// INTEGER SETSIZ
/// PARAMETER ( SETSIZ = 3 )
///
/// C
/// C Local variables.
/// C
/// DOUBLE PRECISION V1 ( NDIM, SETSIZ )
/// DOUBLE PRECISION V2 ( NDIM, SETSIZ )
/// DOUBLE PRECISION VOUT ( NDIM )
///
/// INTEGER I
/// INTEGER J
///
/// C
/// C Define the two vector sets.
/// C
/// DATA V1 /
/// . 1.D0, 2.D0, 3.D0, 4.D0,
/// . 1.D0, 2.D0, 3.D0, 4.D0,
/// . 1.D0, 2.D0, 3.D0, 4.D0 /
///
/// DATA V2 /
/// . 1.D0, 1.D0, 1.D0, 1.D0,
/// . -1.D0, -2.D0, -3.D0, -4.D0,
/// . -1.D0, 2.D0, -3.D0, 4.D0 /
///
/// C
/// C Calculate the difference between each pair of vectors
/// C
/// DO I=1, SETSIZ
///
/// CALL VSUBG ( V1(1,I), V2(1,I), NDIM, VOUT )
///
/// WRITE(*,'(A,4F6.1)') 'First vector : ',
/// . ( V1(J,I), J=1,NDIM )
/// WRITE(*,'(A,4F6.1)') 'Second vector: ',
/// . ( V2(J,I), J=1,NDIM )
/// WRITE(*,'(A,4F6.1)') 'Difference : ', VOUT
/// WRITE(*,*)
///
/// END DO
///
/// END
///
///
/// When this program was executed on a Mac/Intel/gfortran/64-bit
/// platform, the output was:
///
///
/// First vector : 1.0 2.0 3.0 4.0
/// Second vector: 1.0 1.0 1.0 1.0
/// Difference : 0.0 1.0 2.0 3.0
///
/// First vector : 1.0 2.0 3.0 4.0
/// Second vector: -1.0 -2.0 -3.0 -4.0
/// Difference : 2.0 4.0 6.0 8.0
///
/// First vector : 1.0 2.0 3.0 4.0
/// Second vector: -1.0 2.0 -3.0 4.0
/// Difference : 2.0 0.0 6.0 0.0
/// ```
///
/// # Restrictions
///
/// ```text
/// 1) No error checking is performed to guard against numeric
/// overflow. The programmer is thus required to insure that the
/// values in V1 and V2 are reasonable and will not cause
/// overflow. No error recovery or reporting scheme is
/// incorporated in this routine.
/// ```
///
/// # Author and Institution
///
/// ```text
/// N.J. Bachman (JPL)
/// J. Diaz del Rio (ODC Space)
/// H.A. Neilan (JPL)
/// W.M. Owen (JPL)
/// W.L. Taber (JPL)
/// ```
///
/// # Version
///
/// ```text
/// - SPICELIB Version 1.1.0, 06-JUL-2021 (JDR)
///
/// Added IMPLICIT NONE statement.
///
/// Edited the header to comply with NAIF standard. Added complete
/// code example based on existing example.
///
/// - SPICELIB Version 1.0.3, 23-APR-2010 (NJB)
///
/// Header correction: assertions that the output
/// can overwrite the input have been removed.
///
/// - SPICELIB Version 1.0.2, 10-MAR-1992 (WLT)
///
/// Comment section for permuted index source lines was added
/// following the header.
///
/// - SPICELIB Version 1.0.1, 09-MAY-1990 (HAN)
///
/// Several errors in the header documentation were corrected.
///
/// - SPICELIB Version 1.0.0, 31-JAN-1990 (WMO)
/// ```
pub fn vsubg(v1: &[f64], v2: &[f64], ndim: i32, vout: &mut [f64]) {
VSUBG(v1, v2, ndim, vout);
}
//$Procedure VSUBG ( Vector subtraction, general dimension )
pub fn VSUBG(V1: &[f64], V2: &[f64], NDIM: i32, VOUT: &mut [f64]) {
let V1 = DummyArray::new(V1, 1..=NDIM);
let V2 = DummyArray::new(V2, 1..=NDIM);
let mut VOUT = DummyArrayMut::new(VOUT, 1..=NDIM);
//
// Local variables
//
for I in 1..=NDIM {
VOUT[I] = (V1[I] - V2[I]);
}
}