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/*********************************************************************
* Copyright 1992, University Corporation for Atmospheric Research
* See netcdf/README file for copying and redistribution conditions.
*
* Purpose: interface for classes of typed arrays for netCDF
*
* $Header: /hdf/src/master/dist/mfhdf/c++/ncvalues.hh,v 1.2 1993/04/30 20:29:42 koziol Exp $
*********************************************************************/
#ifndef Ncvalues_def
#define Ncvalues_def
#include <generic.h>
#include <iostream.h>
#include <strstream.h>
#include <limits.h>
#include <string.h>
#include "netcdf.h"
typedef unsigned char ncbyte;
enum NcType
{
ncNoType = NC_UNSPECIFIED,
ncByte = NC_BYTE,
ncChar = NC_CHAR,
ncShort = NC_SHORT,
ncLong = NC_LONG,
ncFloat = NC_FLOAT,
ncDouble = NC_DOUBLE,
ncInt // Note: needed for int* overloading
};
static const ncbyte ncBad_byte = FILL_BYTE;
static const char ncBad_char = FILL_CHAR;
static const short ncBad_short = FILL_SHORT;
static const long ncBad_long = FILL_LONG;
static const float ncBad_float = FILL_FLOAT;
static const double ncBad_double = FILL_DOUBLE;
#define NcVal(TYPE) name2(NcValues_,TYPE)
#define NcValuesdeclare(TYPE) \
class NcVal(TYPE) : public NcValues \
{ \
public: \
NcVal(TYPE)( void ); \
NcVal(TYPE)(long num); \
NcVal(TYPE)(long num, const TYPE* vals); \
NcVal(TYPE)(const NcVal(TYPE)&); \
virtual NcVal(TYPE)& operator=(const NcVal(TYPE)&); \
virtual ~NcVal(TYPE)( void ); \
virtual void* base( void ) const; \
virtual int bytes_for_one( void ) const; \
virtual ncbyte as_ncbyte( int n ) const; \
virtual char as_char( int n ) const; \
virtual short as_short( int n ) const; \
virtual long as_long( int n ) const; \
virtual float as_float( int n ) const; \
virtual double as_double( int n ) const; \
virtual char* as_string( int n ) const; \
private: \
TYPE* the_values; \
ostream& print(ostream&) const; \
};
#define NcTypeEnum(TYPE) name2(_nc__,TYPE)
#define _nc__ncbyte ncByte
#define _nc__char ncChar
#define _nc__short ncShort
#define _nc__long ncLong
#define _nc__int ncInt
#define _nc__float ncFloat
#define _nc__double ncDouble
#define NcValuesimplement(TYPE) \
NcVal(TYPE)::NcVal(TYPE)( void ) \
: NcValues(NcTypeEnum(TYPE), 0), the_values(0) \
{} \
\
NcVal(TYPE)::NcVal(TYPE)(long num, const TYPE* vals) \
: NcValues(NcTypeEnum(TYPE), num) \
{ \
the_values = new TYPE[num]; \
for(int i = 0; i < num; i++) \
the_values[i] = vals[i]; \
} \
\
NcVal(TYPE)::NcVal(TYPE)(long num) \
: NcValues(NcTypeEnum(TYPE), num), the_values(new TYPE[num]) \
{} \
\
NcVal(TYPE)::NcVal(TYPE)(const NcVal(TYPE)& v) \
{ \
delete[] the_values; \
the_values = new TYPE[v.the_number]; \
for(int i = 0; i < v.the_number; i++) \
the_values[i] = v.the_values[i]; \
} \
\
NcVal(TYPE)& NcVal(TYPE)::operator=(const NcVal(TYPE)& v) \
{ \
delete[] the_values; \
the_values = new TYPE[v.the_number]; \
for(int i = 0; i < v.the_number; i++) \
the_values[i] = v.the_values[i]; \
return *this; \
} \
\
void* NcVal(TYPE)::base( void ) const \
{ \
return the_values; \
} \
\
NcVal(TYPE)::~NcVal(TYPE)( void ) \
{ \
delete[] the_values; \
}
#define Ncbytes_for_one_implement(TYPE) \
int NcVal(TYPE)::bytes_for_one( void ) const \
{ \
return nctypelen((nc_type) NcTypeEnum(TYPE)); \
}
#define as_ncbyte_implement(TYPE) \
ncbyte NcVal(TYPE)::as_ncbyte( int n ) const \
{ \
if (the_values[n] < 0 || the_values[n] > UCHAR_MAX) \
return ncBad_byte; \
return (ncbyte) the_values[n]; \
}
#define as_char_implement(TYPE) \
char NcVal(TYPE)::as_char( int n ) const \
{ \
if (the_values[n] < CHAR_MIN || the_values[n] > CHAR_MAX) \
return ncBad_char; \
return (char) the_values[n]; \
}
#define as_short_implement(TYPE) \
short NcVal(TYPE)::as_short( int n ) const \
{ \
if (the_values[n] < SHRT_MIN || the_values[n] > SHRT_MAX) \
return ncBad_short; \
return (short) the_values[n]; \
}
#define as_long_implement(TYPE) \
long NcVal(TYPE)::as_long( int n ) const \
{ \
if (the_values[n] < LONG_MIN || the_values[n] > LONG_MAX) \
return ncBad_long; \
return (long) the_values[n]; \
}
#define as_float_implement(TYPE) \
inline float NcVal(TYPE)::as_float( int n ) const \
{ \
return (float) the_values[n]; \
}
#define as_double_implement(TYPE) \
inline double NcVal(TYPE)::as_double( int n ) const \
{ \
return (double) the_values[n]; \
}
#define as_string_implement(TYPE) \
char* NcVal(TYPE)::as_string( int n ) const \
{ \
char* s = new char[32]; \
ostrstream(s, sizeof(s)) << the_values[n] << ends ; \
return s; \
}
class NcValues // ABC for value blocks
{
public:
NcValues( void );
NcValues(NcType, long);
virtual ~NcValues( void );
virtual long num( void );
virtual ostream& print(ostream&) const = 0;
virtual void* base( void ) const = 0;
virtual int bytes_for_one( void ) const = 0;
// The following member functions provide conversions from the value
// type to a desired basic type. If the value is out of range, the
// default "fill-value" for the appropriate type is returned.
virtual ncbyte as_ncbyte( int n ) const = 0; // nth value as a byte
virtual char as_char( int n ) const = 0; // nth value as char
virtual short as_short( int n ) const = 0; // nth value as short
virtual long as_long( int n ) const = 0; // nth value as long
virtual float as_float( int n ) const = 0; // nth value as floating-point
virtual double as_double( int n ) const = 0; // nth value as double
virtual char* as_string( int n ) const = 0; // value as string
protected:
NcType the_type;
long the_number;
friend ostream& operator<< (ostream&, const NcValues&);
};
declare(NcValues,ncbyte)
declare(NcValues,char)
declare(NcValues,short)
declare(NcValues,long)
declare(NcValues,int)
declare(NcValues,float)
declare(NcValues,double)
#endif
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