varinfo.h

Go to the documentation of this file.

#ifndef WREPORT_VARINFO_H
#define WREPORT_VARINFO_H
 
#include <cstdint>
#include <string>
#include <wreport/fwd.h>
 
namespace wreport {
 
typedef uint16_t Varcode;
 
std::string varcode_format(Varcode code);
 
#define WR_VAR(f, x, y) ((wreport::Varcode)( ((unsigned)(f)<<14) | ((unsigned)(x)<<8) | (unsigned)(y) ))
 
#define WR_STRING_TO_VAR(str) ((wreport::Varcode)( \
        (( ((str)[0] - '0')*10 + ((str)[1] - '0') ) << 8) | \
        ( ((str)[2] - '0')*100 + ((str)[3] - '0')*10 + ((str)[4] - '0') ) \
))
 
#define WR_VAR_F(code) (((code) >> 14) & 0x3)
 
#define WR_VAR_X(code) ((code) >> 8 & 0x3f)
 
#define WR_VAR_Y(code) ((code) & 0xff)
 
#define WR_VAR_FXY(code) WR_VAR_F(code), WR_VAR_X(code), WR_VAR_Y(code)
 
Varcode varcode_parse(const char* desc);
 
 
enum class Vartype : unsigned
{
    // Integer value
    Integer,
    // Floating point value
    Decimal,
    // String value
    String,
    // Opaque binary value
    Binary,
};
 
 
const char* vartype_format(Vartype type);
 
Vartype vartype_parse(const char* s);
 
 
struct _Varinfo
{
    Varcode code;
 
    Vartype type;
 
    char desc[64];
 
    char unit[24];
 
    int scale;
 
    unsigned len;
 
    int bit_ref;
 
    unsigned bit_len;
 
    int imin;
 
    int imax;
 
    double dmin;
 
    double dmax;
 
    int encode_decimal(double fval) const;
 
    double round_decimal(double val) const;
 
    uint32_t encode_binary(double fval) const;
 
    double decode_decimal(int val) const;
 
    double decode_binary(uint32_t val) const;
 
    void set_bufr(Varcode code,
             const char* desc,
             const char* unit,
             int scale=0, unsigned len=0,
             int bit_ref=0, int bit_len=0);
 
    void set_crex(Varcode code,
             const char* desc,
             const char* unit,
             int scale=0, unsigned len=0);
 
    void set_string(Varcode code, const char* desc, unsigned len);
 
    void set_binary(Varcode code, const char* desc, unsigned bit_len);
 
    void compute_range();
};
 
 
typedef const _Varinfo* Varinfo;
 
}
#endif