datum.h

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/* Copyright (C) 2017 Chris Piker <chris-piker@uiowa.edu>
 *
 * This file is part of libdas2, the Core Das2 C Library.
 * 
 * Libdas2 is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License version 2.1 as published
 * by the Free Software Foundation.
 *
 * Libdas2 is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for
 * more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 2.1 along with libdas2; if not, see <http://www.gnu.org/licenses/>. 
 */

#ifndef _das_datum_h_
#define _das_datum_h_

#include <das2/value.h>
#include <das2/units.h>

#ifdef __cplusplus
extern "C" {
#endif
   
typedef struct datum_t {
   byte bytes[sizeof(das_time)];
   das_val_type vt;
   size_t vsize;  
   das_units units;
} das_datum;


bool das_datum_fromStr(das_datum* pThis, const char* sStr);

bool das_datum_fromDbl(das_datum* pThis, double value, das_units units);

bool das_datum_wrapStr(das_datum* pTHis, const char* sStr, das_units units);


typedef struct das_byteseq_t{
   const byte* ptr;
   size_t      sz;
} das_byteseq;

bool das_datum_byteSeq(
   das_datum* pThis, das_byteseq seq, das_units units
);

char* das_datum_toStr(
   const das_datum* pThis, char* sStr, size_t uLen, int nFracDigits
);

char* das_datum_toStrValOnly(
   const das_datum* pThis, char* sStr, size_t uLen, int nFracDigits
);


double das_datum_toDbl(const das_datum* pThis);

#ifdef __cplusplus
}
#endif

#endif   /* _das_datum_h_ */