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//
// GENERATED FILE
//
use super::*;
use crate::SpiceContext;
use f2rust_std::*;
pub const LBCELL: i32 = -5;
/// Cardinality of a character cell
///
/// Return the cardinality (number of elements) of a character cell.
///
/// # Required Reading
///
/// * [CELLS](crate::required_reading::cells)
///
/// # Brief I/O
///
/// ```text
/// VARIABLE I/O DESCRIPTION
/// -------- --- --------------------------------------------------
/// CELL I Input cell.
///
/// The function returns the cardinality of the input cell.
/// ```
///
/// # Detailed Input
///
/// ```text
/// CELL is a cell.
/// ```
///
/// # Detailed Output
///
/// ```text
/// The function returns the cardinality of (number of elements in)
/// the input cell.
/// ```
///
/// # Exceptions
///
/// ```text
/// 1) If the input array has invalid cardinality, the error
/// SPICE(INVALIDCARDINALITY) is signaled. CARDC returns
/// an unspecified value in this case.
///
/// 2) If the input array has invalid size, the error
/// SPICE(INVALIDSIZE) is signaled. CARDC returns
/// an unspecified value in this case.
/// ```
///
/// # Examples
///
/// ```text
/// The cardinality (CARD) functions are typically used to process
/// each of the elements of a cell. In the following example, CARDC
/// is used to step through the individual elements of the character
/// cell NAMES.
///
/// DO I = 1, CARDC ( NAMES )
/// .
/// .
/// END DO
///
/// In conjunction with the size (SIZE) functions, they may be used
/// to predict (and subsequently avoid) overflows when manipulating
/// cells. In the following example, SIZEC is used to determine
/// whether the character cell ORIGINAL can be safely copied into
/// the character cell SAVE before actually attempting the operation.
/// If ORIGINAL contains more elements than SAVE can hold, then
/// the operation would fail.
///
/// IF ( CARDC ( ORIGINAL ) .LE. SIZEC ( SAVE ) ) THEN
/// CALL COPYC ( ORIGINAL, SAVE )
///
/// ELSE
/// .
/// .
/// END IF
/// ```
///
/// # Author and Institution
///
/// ```text
/// N.J. Bachman (JPL)
/// C.A. Curzon (JPL)
/// J. Diaz del Rio (ODC Space)
/// H.A. Neilan (JPL)
/// W.L. Taber (JPL)
/// I.M. Underwood (JPL)
/// ```
///
/// # Version
///
/// ```text
/// - SPICELIB Version 1.2.0, 12-AUG-2021 (JDR)
///
/// Added IMPLICIT NONE statement.
///
/// Edited the header to comply with NAIF standard.
///
/// - SPICELIB Version 1.1.1, 29-JUL-2002 (NJB)
///
/// Errors in code fragments in the $Examples section of
/// the header were corrected.
///
/// - SPICELIB Version 1.1.0, 17-MAY-1994 (HAN)
///
/// If the value of the function RETURN is .TRUE. upon execution of
/// this module, this function is assigned a default value of
/// either 0, 0.0D0, .FALSE., or blank depending on the type of the
/// function.
///
/// - SPICELIB Version 1.0.1, 10-MAR-1992 (WLT)
///
/// Comment section for permuted index source lines was added
/// following the header.
///
/// - SPICELIB Version 1.0.0, 31-JAN-1990 (CAC) (WLT) (IMU)
/// ```
///
/// # Revisions
///
/// ```text
/// - Beta Version 2.0.0, 13-MAR-1989 (NJB)
///
/// Check for valid input cell added. The input cell must
/// have valid size and cardinality values.
/// ```
pub fn cardc(ctx: &mut SpiceContext, cell: CharArray) -> crate::Result<i32> {
let ret = CARDC(cell, ctx.raw_context())?;
ctx.handle_errors()?;
Ok(ret)
}
//$Procedure CARDC ( Cardinality of a character cell )
pub fn CARDC(CELL: CharArray, ctx: &mut Context) -> f2rust_std::Result<i32> {
let CELL = DummyCharArray::new(CELL, None, LBCELL..);
let mut CARDC: i32 = 0;
let mut CARD: i32 = 0;
let mut SIZE: i32 = 0;
//
// SPICELIB functions
//
//
// Local variables
//
if RETURN(ctx) {
CARDC = 0;
return Ok(CARDC);
} else {
CHKIN(b"CARDC", ctx)?;
}
//
// Set return value, regardless of validity.
//
DECHAR(&CELL[0], &mut CARD, ctx)?;
CARDC = CARD;
//
// Squeal if something is awry.
//
DECHAR(&CELL[-1], &mut SIZE, ctx)?;
if (SIZE < 0) {
SETMSG(b"Invalid cell size. The size was #.", ctx);
ERRINT(b"#", SIZE, ctx);
SIGERR(b"SPICE(INVALIDSIZE)", ctx)?;
CHKOUT(b"CARDC", ctx)?;
return Ok(CARDC);
} else if (CARD < 0) {
SETMSG(b"Invalid cell cardinality. The cardinality was #.", ctx);
ERRINT(b"#", CARD, ctx);
SIGERR(b"SPICE(INVALIDCARDINALITY)", ctx)?;
CHKOUT(b"CARDC", ctx)?;
return Ok(CARDC);
} else if (CARD > SIZE) {
SETMSG(b"Invalid cell cardinality; cardinality exceeds cell size. The cardinality was #. The size was #.", ctx);
ERRINT(b"#", CARD, ctx);
ERRINT(b"#", SIZE, ctx);
SIGERR(b"SPICE(INVALIDCARDINALITY)", ctx)?;
CHKOUT(b"CARDC", ctx)?;
return Ok(CARDC);
}
CHKOUT(b"CARDC", ctx)?;
Ok(CARDC)
}