You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
81 lines
2.8 KiB
81 lines
2.8 KiB
// I/O of floats.
|
|
|
|
#ifndef _CL_FLOAT_IO_H
|
|
#define _CL_FLOAT_IO_H
|
|
|
|
#include "cln/number_io.h"
|
|
#include "cln/float.h"
|
|
|
|
namespace cln {
|
|
|
|
// Undocumented input functions
|
|
|
|
// Wandelt eine Zeichenkette mit Float-Syntax in ein Float um.
|
|
// read_float(base,sign,string,index1,index4,index2,index3)
|
|
// > base: Lesebasis (=10)
|
|
// > sign: Vorzeichen (/=0 falls negativ)
|
|
// > string: Simple-String (enthält Ziffern und evtl. Punkt und Exponentmarker)
|
|
// > index1: Index vom Mantissenanfang (excl. Vorzeichen)
|
|
// > index4: Index nach dem Mantissenende
|
|
// > index2: Index beim Ende der Characters
|
|
// > index3: Index nach dem Dezimalpunkt (=index4 falls keiner da)
|
|
// (also Mantisse mit index4-index1 Characters: Ziffern und max. 1 '.')
|
|
// (also index4-index3 Nachkommaziffern)
|
|
// (also bei index4<index2: index4 = Index des Exponent-Markers,
|
|
// index4+1 = Index des Exponenten-Vorzeichens oder der ersten
|
|
// Exponenten-Ziffer)
|
|
// < ergebnis: Float
|
|
extern const cl_F read_float (unsigned int base, float_format_t prec,
|
|
cl_signean sign, const char * string, uintL index1, uintL index4, uintL index2, uintL index3);
|
|
|
|
// The following does strictly the same as the general read_complex.
|
|
// It is here only so that you don't need the complex and rational number
|
|
// readers in order to read a float number. ("Treeshaking")
|
|
extern const cl_F read_float (const cl_read_flags& flags, const char * string, const char * string_limit, const char * * end_of_parse);
|
|
extern const cl_F read_float (std::istream& stream, const cl_read_flags& flags);
|
|
|
|
// Documented input functions
|
|
|
|
inline std::istream& operator>> (std::istream& stream, cl_F& result)
|
|
{
|
|
extern cl_read_flags cl_F_read_flags;
|
|
result = read_float(stream,cl_F_read_flags);
|
|
return stream;
|
|
}
|
|
|
|
|
|
// Undocumented output functions
|
|
|
|
|
|
// Documented output functions
|
|
|
|
// Gibt ein Float aus.
|
|
// print_float(stream,z);
|
|
// > z: Float
|
|
// > stream: Stream
|
|
extern void print_float (std::ostream& stream, const cl_print_flags& flags, const cl_F& z);
|
|
extern void print_float (std::ostream& stream, const cl_print_number_flags& flags, const cl_F& z);
|
|
extern void print_float (std::ostream& stream, const cl_print_real_flags& flags, const cl_F& z);
|
|
extern void print_float (std::ostream& stream, const cl_print_float_flags& flags, const cl_F& z);
|
|
|
|
// Gibt ein Float binär (sehr primitiv) aus.
|
|
// print_float_binary(stream,z);
|
|
// > z: Float
|
|
// > stream: Stream
|
|
extern void print_float_binary (std::ostream& stream, const cl_F& z);
|
|
|
|
// The following does strictly the same as the general `fprint' for numbers.
|
|
// It is here only so that you don't need the complex printer
|
|
// in order to print a float. ("Treeshaking")
|
|
|
|
inline void fprint (std::ostream& stream, const cl_F& x)
|
|
{
|
|
extern cl_print_flags default_print_flags;
|
|
print_float(stream,default_print_flags,x);
|
|
}
|
|
|
|
CL_DEFINE_PRINT_OPERATOR(cl_F)
|
|
|
|
} // namespace cln
|
|
|
|
#endif /* _CL_FLOAT_IO_H */
|