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78 lines
2.7 KiB
78 lines
2.7 KiB
// I/O of rational numbers.
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#ifndef _CL_RATIONAL_IO_H
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#define _CL_RATIONAL_IO_H
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#include "cln/number_io.h"
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#include "cln/rational.h"
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namespace cln {
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// Undocumented input functions
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// Wandelt eine Zeichenkette mit Rational-Syntax in eine rationale Zahl um.
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// read_rational(base,sign,string,index1,index3,index2)
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// > base: Lesebasis (>=2, <=36)
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// > sign: Vorzeichen (/=0 falls negativ)
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// > string: Simple-String (enthält Ziffern mit Wert <base und Bruchstrich)
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// > index1: Index der ersten Ziffer
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// > index3: Index von '/'
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// > index2: Index nach der letzten Ziffer
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// (also index3-index1 Zähler-Ziffern, index2-index3-1 Nenner-Ziffern)
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// < ergebnis: rationale Zahl
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extern const cl_RA read_rational (unsigned int base,
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cl_signean sign, const char * string, uintL index1, uintL index3, uintL index2);
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// The following does strictly the same as the general read_complex.
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// It is here only so that you don't need the complex and float number
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// readers in order to read an rational number. ("Treeshaking")
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extern const cl_RA read_rational (const cl_read_flags& flags, const char * string, const char * string_limit, const char * * end_of_parse);
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extern const cl_RA read_rational (std::istream& stream, const cl_read_flags& flags);
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// Documented input functions
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inline std::istream& operator>> (std::istream& stream, cl_RA& result)
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{
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extern cl_read_flags cl_RA_read_flags;
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result = read_rational(stream,cl_RA_read_flags);
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return stream;
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}
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// Undocumented output functions
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// Gibt eine rationale Zahl aus.
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// print_rational(stream,base,z);
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// > z: rationale Zahl
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// > base: Basis (>=2, <=36)
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// > stream: Stream
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extern void print_rational (std::ostream& stream, unsigned int base, const cl_RA& z);
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// Documented output functions
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// Gibt eine Zahl aus.
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// print_rational(stream,flags,z);
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// > z: Zahl
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// > stream: Stream
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// > flags: Ausgabe-Parameter
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extern void print_rational (std::ostream& stream, const cl_print_flags& flags, const cl_RA& z);
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extern void print_rational (std::ostream& stream, const cl_print_number_flags& flags, const cl_RA& z);
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extern void print_rational (std::ostream& stream, const cl_print_real_flags& flags, const cl_RA& z);
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extern void print_rational (std::ostream& stream, const cl_print_rational_flags& flags, const cl_RA& z);
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// The following does strictly the same as the general `fprint' for numbers.
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// It is here only so that you don't need the complex and long-float number
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// printers in order to print an integer. ("Treeshaking")
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inline void fprint (std::ostream& stream, const cl_RA& x)
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{
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extern cl_print_flags default_print_flags;
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print_rational(stream,default_print_flags,x);
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}
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CL_DEFINE_PRINT_OPERATOR(cl_RA)
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} // namespace cln
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#endif /* _CL_RATIONAL_IO_H */
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