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105 lines
3.3 KiB
105 lines
3.3 KiB
// I/O of integers.
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#ifndef _CL_INTEGER_IO_H
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#define _CL_INTEGER_IO_H
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#include "cln/number_io.h"
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#include "cln/integer_class.h"
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namespace cln {
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// Undocumented input functions
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// Wandelt eine Zeichenkette mit Integer-Syntax in ein Integer um.
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// Punkte werden überlesen.
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// read_integer(base,sign,string,index1,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 evtl. Punkt)
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// > index1: Index der ersten Ziffer
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// > index2: Index nach der letzten Ziffer
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// (also index2-index1 Ziffern, incl. evtl. Dezimalpunkt am Schluß)
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// < ergebnis: Integer
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extern const cl_I read_integer (unsigned int base,
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cl_signean sign, const char * string, uintL index1, 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 rational, complex and float number
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// readers in order to read an integer. ("Treeshaking")
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extern const cl_I read_integer (const cl_read_flags& flags, const char * string, const char * string_limit, const char * * end_of_parse);
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extern const cl_I read_integer (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_I& result)
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{
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extern cl_read_flags cl_I_read_flags;
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result = read_integer(stream,cl_I_read_flags);
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return stream;
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}
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// Undocumented output functions
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// Liefert zu einem Integer >=0 (write-to-string integer :base 10 :radix nil),
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// also die Ziffernfolge als String.
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// Mit malloc_hook() alloziert, mit free_hook() freizugeben.
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extern char * cl_decimal_string (const cl_I& x);
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// Gibt ein Integer aus.
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// print_integer(stream,base,z);
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// > z: Integer
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// > base: Basis (>=2, <=36)
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// > stream: Stream
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extern void print_integer (std::ostream& stream, unsigned int base, const cl_I& z);
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// Dasselbe als String. Mit malloc_hook() alloziert, mit free_hook() freizugeben.
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extern char * print_integer_to_string (unsigned int base, const cl_I& z);
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// Documented output functions
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inline void fprintdecimal (std::ostream& stream, const cl_I& x)
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{
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print_integer(stream,10,x);
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}
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inline void fprintbinary (std::ostream& stream, const cl_I& x)
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{
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print_integer(stream,2,x);
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}
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inline void fprintoctal (std::ostream& stream, const cl_I& x)
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{
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print_integer(stream,8,x);
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}
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inline void fprinthexadecimal (std::ostream& stream, const cl_I& x)
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{
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print_integer(stream,16,x);
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}
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// Gibt eine Zahl aus.
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// print_integer(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_integer (std::ostream& stream, const cl_print_flags& flags, const cl_I& z);
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extern void print_integer (std::ostream& stream, const cl_print_number_flags& flags, const cl_I& z);
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extern void print_integer (std::ostream& stream, const cl_print_real_flags& flags, const cl_I& z);
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extern void print_integer (std::ostream& stream, const cl_print_rational_flags& flags, const cl_I& 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 rational number printer
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// in order to print an integer. ("Treeshaking")
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inline void fprint (std::ostream& stream, const cl_I& x)
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{
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extern cl_print_flags default_print_flags;
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print_integer(stream,default_print_flags,x);
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}
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CL_DEFINE_PRINT_OPERATOR(cl_I)
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} // namespace cln
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#endif /* _CL_INTEGER_IO_H */
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