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//
// GENERATED FILE
//
use super::*;
use crate::SpiceContext;
use f2rust_std::*;
/// Binary search for double precision value
///
/// Do a binary search for a given value within a double precision
/// array, assumed to be in nondecreasing order. Return the index of
/// the matching array entry, or zero if the key value is not found.
///
/// # Brief I/O
///
/// ```text
/// VARIABLE I/O DESCRIPTION
/// -------- --- --------------------------------------------------
/// VALUE I Value to find in ARRAY.
/// NDIM I Dimension of ARRAY.
/// ARRAY I Array to be searched.
///
/// The function returns the index of VALUE in ARRAY, or zero if not
/// found.
/// ```
///
/// # Detailed Input
///
/// ```text
/// VALUE is the double precision value to be found in the input
/// array.
///
/// NDIM is the number of elements in the input array.
///
/// ARRAY is the double precision array to be searched. The
/// elements in ARRAY are assumed to sorted in increasing
/// order.
/// ```
///
/// # Detailed Output
///
/// ```text
/// The function returns the index of the specified value in the input
/// array. Indices range from 1 to NDIM.
///
/// If the input array does not contain the specified value, the
/// function returns zero.
///
/// If the input array contains more than one occurrence of the
/// specified value, the returned index may point to any of the
/// occurrences.
/// ```
///
/// # Exceptions
///
/// ```text
/// Error free.
///
/// 1) If NDIM < 1, the value of the function is zero.
/// ```
///
/// # Particulars
///
/// ```text
/// A binary search is performed on the input array. If an element of
/// the array is found to match the input value, the index of that
/// element is returned. If no matching element is found, zero is
/// returned.
/// ```
///
/// # Examples
///
/// ```text
/// Let ARRAY contain the following elements:
///
/// -11.D0
/// 0.D0
/// 22.491D0
/// 750.0D0
///
/// Then
///
/// BSRCHD ( -11.D0, 4, ARRAY ) = 1
/// BSRCHD ( 22.491D0, 4, ARRAY ) = 3
/// BSRCHD ( 751.D0, 4, ARRAY ) = 0
/// ```
///
/// # Restrictions
///
/// ```text
/// 1) ARRAY is assumed to be sorted in increasing order. If this
/// condition is not met, the results of BSRCHD are unpredictable.
/// ```
///
/// # 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, 26-OCT-2021 (JDR)
///
/// Added IMPLICIT NONE statement.
///
/// Edited the header to comply with NAIF standard. Removed
/// unnecessary $Revisions section. Improved $Detailed_Output
/// section.
///
/// - SPICELIB Version 1.0.1, 10-MAR-1992 (WLT)
///
/// Comment section for permuted index source lines was added
/// following the header.
///
/// - SPICELIB Version 1.0.0, 31-JAN-1990 (IMU)
/// ```
pub fn bsrchd(value: f64, ndim: i32, array: &[f64]) -> i32 {
let ret = BSRCHD(value, ndim, array);
ret
}
//$Procedure BSRCHD ( Binary search for double precision value )
pub fn BSRCHD(VALUE: f64, NDIM: i32, ARRAY: &[f64]) -> i32 {
let ARRAY = DummyArray::new(ARRAY, 1..);
let mut BSRCHD: i32 = 0;
let mut LEFT: i32 = 0;
let mut RIGHT: i32 = 0;
let mut I: i32 = 0;
//
// Local variables
//
//
// Set the initial bounds for the search area.
//
LEFT = 1;
RIGHT = NDIM;
while (LEFT <= RIGHT) {
//
// Check the middle element.
//
I = ((LEFT + RIGHT) / 2);
//
// If the middle element matches, return its location.
//
if (VALUE == ARRAY[I]) {
BSRCHD = I;
return BSRCHD;
//
// Otherwise narrow the search area.
//
} else if (VALUE < ARRAY[I]) {
RIGHT = (I - 1);
} else {
LEFT = (I + 1);
}
}
//
// If the search area is empty, return zero.
//
BSRCHD = 0;
BSRCHD
}