//  floating.h
//
//  by John D. de Boer


typedef /*long*/ double real;


//  Utility functions

real modtwopi(real X);
real modtwopisym(real X);
real fgtr(real X, real Lower);
real flsr(real X, real Upper);
real fbetween(real X, real Lower, real Upper);
real rounddown(real X, bool Two, bool Five);


//  Floating-point string functions

string floatstring(real Num, int PLACES, short *EXP);
string engineeringrep(real Num, int PLACES, short *EXP);
string fixedstring(real Num, int LEFT, int RIGHT);
bool parsereal(const char *S, real *X);
bool modalreal(const char *Msg, char **S, real *X);


//  Decimal strings with SI units

string sifloat(real Num, int PLACES, short *EXP, char *Pref, char *Units);


//  Angle string functions

bool parsedegrees(const char *S, real *Rads);
bool parsedegminsec(const char *S, real *Rads);
bool parsehourminsec(const char *S, real *Rads);

string anglestring(real Angle, bool Radians);
string degminstring(real Angle, bool Pos);


//  Drawing real numbers

//void drawreal(real X, int PLACES);
//void drawfixed(real X, int LEFT, int RIGHT);


//  Reading and writing real numbers

void writereal(real X);
real readreal(void);