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iostream.hfa @ 4aae2bd

Last change on this file since 4aae2bd was 4aae2bd, checked in by Peter A. Buhr <pabuhr@…>, 5 months ago
continue to work on quoted formatting and generalization
Property mode set to `100644`
File size: 21.3 KB

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1	//
2	// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
3	//
4	// The contents of this file are covered under the licence agreement in the
5	// file "LICENCE" distributed with Cforall.
6	//
7	// iostream.hfa --
8	//
9	// Author : Peter A. Buhr
10	// Created On : Wed May 27 17:56:53 2015
11	// Last Modified By : Peter A. Buhr
12	// Last Modified On : Wed Jan 3 10:53:18 2024
13	// Update Count : 610
14	//
15
16	#pragma once
17
18	#include "iterator.hfa"
19	#include "Exception.hfa"
20
21	// ********************************* ostream *********************************
22
23	forall( ostype & )
24	trait basic_ostream {
25	// private
26	bool sepPrt$( ostype & ); // get separator state (on/off)
27	void sepReset$( ostype & ); // set separator state to default state
28	void sepReset$( ostype &, bool ); // set separator and default state
29	const char * sepGetCur$( ostype & ); // get current separator string
30	void sepSetCur$( ostype &, const char [] ); // set current separator string
31	bool getNL$( ostype & ); // get newline
32	bool setNL$( ostype &, bool ); // set newline
33	bool getANL$( ostype & ); // get auto newline (on/off)
34	bool setANL$( ostype &, bool ); // set auto newline (on/off), and return previous state
35	bool getPrt$( ostype & ); // get fmt called in output cascade
36	bool setPrt$( ostype &, bool ); // set fmt called in output cascade
37	// public
38	void nlOn( ostype & ); // turn auto-newline state on
39	void nlOff( ostype & ); // turn auto-newline state off
40
41	void sep( ostype & ); // turn separator state on
42	void nosep( ostype & ); // turn separator state off
43	bool sepOn( ostype & ); // set default state to on, and return previous state
44	bool sepOff( ostype & ); // set default state to off, and return previous state
45	const char * sepGet( ostype & ); // get separator string
46	void sepSet( ostype &, const char [] ); // set separator to string (15 character maximum)
47	const char * sepGetTuple( ostype & ); // get tuple separator string
48	void sepSetTuple( ostype &, const char [] ); // set tuple separator to string (15 character maximum)
49
50	void ends( ostype & ); // end of output statement
51	int fmt( ostype &, const char format[], ... ) __attribute__(( format(printf, 2, 3) ));
52	}; // basic_ostream
53
54	forall( ostype & \| basic_ostream( ostype ) )
55	trait ostream {
56	bool fail( ostype & ); // operation failed?
57	void clear( ostype & );
58	int flush( ostype & );
59	void open( ostype &, const char name[], const char mode[] );
60	void close( ostype & );
61	ostype & write( ostype &, const char [], size_t );
62	}; // ostream
63
64	// forall( T )
65	// trait writeable {
66	// forall( ostype & \| ostream( ostype ) ) ostype & ?\|?( ostype &, T );
67	// }; // writeable
68
69	forall( T, ostype & \| ostream( ostype ) )
70	trait writeable {
71	ostype & ?\|?( ostype &, T );
72	}; // writeable
73
74	// implement writable for intrinsic types
75
76	#define OSTYPE_VOID( T ) void ?\|?( ostype &, T )
77	#define OSTYPE_VOID_IMPL( T ) \
78	void ?\|?( ostype & os, T t ) { \
79	(ostype &)(os \| t); ends( os ); \
80	} // ?\|?
81
82	forall( ostype & \| basic_ostream( ostype ) ) {
83	ostype & ?\|?( ostype &, bool );
84	OSTYPE_VOID( bool );
85
86	ostype & ?\|?( ostype &, char );
87	OSTYPE_VOID( char );
88	ostype & ?\|?( ostype &, signed char );
89	OSTYPE_VOID( signed char );
90	ostype & ?\|?( ostype &, unsigned char );
91	OSTYPE_VOID( unsigned char );
92
93	ostype & ?\|?( ostype &, short int );
94	OSTYPE_VOID( short int );
95	ostype & ?\|?( ostype &, unsigned short int );
96	OSTYPE_VOID( unsigned short int );
97	ostype & ?\|?( ostype &, int );
98	OSTYPE_VOID( int );
99	ostype & ?\|?( ostype &, unsigned int );
100	OSTYPE_VOID( unsigned int );
101	ostype & ?\|?( ostype &, long int );
102	OSTYPE_VOID( long int );
103	ostype & ?\|?( ostype &, long long int );
104	OSTYPE_VOID( long long int );
105	ostype & ?\|?( ostype &, unsigned long int );
106	OSTYPE_VOID( unsigned long int );
107	ostype & ?\|?( ostype &, unsigned long long int );
108	OSTYPE_VOID( unsigned long long int );
109	#if defined( __SIZEOF_INT128__ )
110	ostype & ?\|?( ostype &, int128 );
111	OSTYPE_VOID( int128 );
112	ostype & ?\|?( ostype &, unsigned int128 );
113	OSTYPE_VOID( unsigned int128 );
114	#endif // __SIZEOF_INT128__
115
116	ostype & ?\|?( ostype &, float );
117	OSTYPE_VOID( float );
118	ostype & ?\|?( ostype &, double );
119	OSTYPE_VOID( double );
120	ostype & ?\|?( ostype &, long double );
121	OSTYPE_VOID( long double );
122
123	ostype & ?\|?( ostype &, float _Complex );
124	OSTYPE_VOID( float _Complex );
125	ostype & ?\|?( ostype &, double _Complex );
126	OSTYPE_VOID( double _Complex );
127	ostype & ?\|?( ostype &, long double _Complex );
128	OSTYPE_VOID( long double _Complex );
129
130	ostype & ?\|?( ostype &, const char [] );
131	OSTYPE_VOID( const char [] );
132	// ostype & ?\|?( ostype &, const char16_t [] );
133	#if ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 ) // char32_t == wchar_t => ambiguous
134	// ostype & ?\|?( ostype &, const char32_t [] );
135	#endif // ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 )
136	// ostype & ?\|?( ostype &, const wchar_t [] );
137	ostype & ?\|?( ostype &, const void * );
138	OSTYPE_VOID( const void * );
139
140	// FIX-ME: does not work so using macros
141	// forall( T \| { ostype & ?\|?( ostype &, T ); } )
142	// void ?\|?( ostype & os, T );
143
144	// manipulators
145	ostype & ?\|?( ostype &, ostype & (*)( ostype & ) );
146	OSTYPE_VOID( ostype & (*)( ostype & ) );
147
148	ostype & nl( ostype & );
149	ostype & nonl( ostype & );
150	ostype & nlOn( ostype & );
151	ostype & nlOff( ostype & );
152
153	ostype & sepVal( ostype & );
154	ostype & sepTupleVal( ostype & );
155	ostype & sep( ostype & );
156	ostype & nosep( ostype & );
157	ostype & sepOn( ostype & );
158	ostype & sepOff( ostype & );
159	} // distribution
160
161	// tuples
162	forall( ostype &, T, Params... \| writeable( T, ostype ) \| { ostype & ?\|?( ostype &, Params ); } ) {
163	ostype & ?\|?( ostype & os, T arg, Params rest );
164	void ?\|?( ostype & os, T arg, Params rest );
165	} // distribution
166
167	// writes the range [begin, end) to the given stream
168	forall( ostype &, elt_type \| writeable( elt_type, ostype ), iterator_type \| iterator( iterator_type, elt_type ) ) {
169	void write( iterator_type begin, iterator_type end, ostype & os );
170	void write_reverse( iterator_type begin, iterator_type end, ostype & os );
171	} // distribution
172
173	// ********************************* manipulators *********************************
174
175	struct _Ostream_Flags {
176	unsigned char eng:1; // engineering notation
177	unsigned char neg:1; // val is negative
178	unsigned char pc:1; // precision specified
179	unsigned char left:1; // left justify
180	unsigned char nobsdp:1; // base prefix / decimal point
181	unsigned char sign:1; // plus / minus sign
182	unsigned char pad0:1; // zero pad
183	};
184
185	forall( T )
186	struct _Ostream_Manip {
187	T val; // polymorphic base-type
188	int wd, pc; // width, precision: signed for computations
189	char base; // numeric base / floating-point style
190	union {
191	unsigned char all;
192	_Ostream_Flags flags;
193	};
194	}; // _Ostream_Manip
195
196	// ********************************* integral *********************************
197
198	// See 6.7.9. 19) The initialization shall occur in initializer list order, each initializer provided for a particular
199	// subobject overriding any previously listed initializer for the same subobject; ***all subobjects that are not
200	// initialized explicitly shall be initialized implicitly the same as objects that have static storage duration.***
201
202	#define INTEGRAL_FMT_DECL( T, CODE ) \
203	static inline { \
204	_Ostream_Manip(T) bin( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'b', { .all : 0 } }; } \
205	_Ostream_Manip(T) oct( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'o', { .all : 0 } }; } \
206	_Ostream_Manip(T) hex( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'x', { .all : 0 } }; } \
207	_Ostream_Manip(T) wd( unsigned int w, T val ) { return (_Ostream_Manip(T))@{ val, w, 0, CODE, { .all : 0 } }; } \
208	_Ostream_Manip(T) wd( unsigned int w, unsigned int pc, T val ) { return (_Ostream_Manip(T))@{ val, w, pc, CODE, { .flags.pc : true } }; } \
209	_Ostream_Manip(T) & wd( unsigned int w, _Ostream_Manip(T) & fmt ) { fmt.wd = w; return fmt; } \
210	_Ostream_Manip(T) & wd( unsigned int w, unsigned int pc, _Ostream_Manip(T) & fmt ) { fmt.wd = w; fmt.pc = pc; fmt.flags.pc = true; return fmt; } \
211	_Ostream_Manip(T) & left( _Ostream_Manip(T) & fmt ) { fmt.flags.left = true; return fmt; } \
212	_Ostream_Manip(T) & upcase( _Ostream_Manip(T) & fmt ) { if ( fmt.base == 'x' \|\| fmt.base == 'b' ) fmt.base -= 32; /* upper case */ return fmt; } \
213	_Ostream_Manip(T) & nobase( _Ostream_Manip(T) & fmt ) { fmt.flags.nobsdp = true; return fmt; } \
214	_Ostream_Manip(T) & pad0( _Ostream_Manip(T) & fmt ) { fmt.flags.pad0 = true; return fmt; } \
215	_Ostream_Manip(T) sign( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, CODE, { .flags.sign : true } }; } \
216	_Ostream_Manip(T) & sign( _Ostream_Manip(T) & fmt ) { fmt.flags.sign = true; return fmt; } \
217	} /* distribution */ \
218	forall( ostype & \| basic_ostream( ostype ) ) { \
219	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ); \
220	OSTYPE_VOID( _Ostream_Manip(T) ); \
221	} // ?\|?
222
223	INTEGRAL_FMT_DECL( signed char, 'd' )
224	INTEGRAL_FMT_DECL( unsigned char, 'u' )
225	INTEGRAL_FMT_DECL( signed short int, 'd' )
226	INTEGRAL_FMT_DECL( unsigned short int, 'u' )
227	INTEGRAL_FMT_DECL( signed int, 'd' )
228	INTEGRAL_FMT_DECL( unsigned int, 'u' )
229	INTEGRAL_FMT_DECL( signed long int, 'd' )
230	INTEGRAL_FMT_DECL( unsigned long int, 'u' )
231	INTEGRAL_FMT_DECL( signed long long int, 'd' )
232	INTEGRAL_FMT_DECL( unsigned long long int, 'u' )
233	#if defined( __SIZEOF_INT128__ )
234	INTEGRAL_FMT_DECL( int128, 'd' )
235	INTEGRAL_FMT_DECL( unsigned int128, 'u' )
236	#endif // __SIZEOF_INT128__
237
238	// ********************************* floating point *********************************
239
240	// Default suffix for values with no fraction is "."
241	#define FLOATING_POINT_FMT_DECL( T ) \
242	static inline { \
243	_Ostream_Manip(T) hex( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'a', { .all : 0 } }; } \
244	_Ostream_Manip(T) sci( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'e', { .all : 0 } }; } \
245	_Ostream_Manip(T) eng( T val ) { return (_Ostream_Manip(T))@{ val, 1, -1, 'g', { .flags.eng : true } }; } \
246	_Ostream_Manip(T) wd( unsigned int w, T val ) { return (_Ostream_Manip(T))@{ val, w, 0, 'g', { .all : 0 } }; } \
247	_Ostream_Manip(T) wd( unsigned int w, unsigned int pc, T val ) { return (_Ostream_Manip(T))@{ val, w, pc, 'f', { .flags.pc : true } }; } \
248	_Ostream_Manip(T) ws( unsigned int w, unsigned int pc, T val ) { return (_Ostream_Manip(T))@{ val, w, pc, 'g', { .flags.pc : true } }; } \
249	_Ostream_Manip(T) & wd( unsigned int w, _Ostream_Manip(T) & fmt ) { if ( fmt.flags.eng ) fmt.base = 'f'; fmt.wd = w; return fmt; } \
250	_Ostream_Manip(T) & wd( unsigned int w, unsigned int pc, _Ostream_Manip(T) & fmt ) { if ( fmt.flags.eng ) fmt.base = 'f'; fmt.wd = w; fmt.pc = pc; fmt.flags.pc = true; return fmt; } \
251	_Ostream_Manip(T) & ws( unsigned int w, unsigned int pc, _Ostream_Manip(T) & fmt ) { fmt.wd = w; fmt.pc = pc; fmt.flags.pc = true; return fmt; } \
252	_Ostream_Manip(T) & left( _Ostream_Manip(T) & fmt ) { fmt.flags.left = true; return fmt; } \
253	_Ostream_Manip(T) upcase( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'G', { .all : 0 } }; } \
254	_Ostream_Manip(T) & upcase( _Ostream_Manip(T) & fmt ) { fmt.base -= 32; /* upper case */ return fmt; } \
255	_Ostream_Manip(T) & pad0( _Ostream_Manip(T) & fmt ) { fmt.flags.pad0 = true; return fmt; } \
256	_Ostream_Manip(T) sign( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'g', { .flags.sign : true } }; } \
257	_Ostream_Manip(T) & sign( _Ostream_Manip(T) & fmt ) { fmt.flags.sign = true; return fmt; } \
258	_Ostream_Manip(T) nodp( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'g', { .flags.nobsdp : true } }; } \
259	_Ostream_Manip(T) & nodp( _Ostream_Manip(T) & fmt ) { fmt.flags.nobsdp = true; return fmt; } \
260	_Ostream_Manip(T) unit( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'g', { .flags.nobsdp : true } }; } \
261	_Ostream_Manip(T) & unit( _Ostream_Manip(T) & fmt ) { fmt.flags.nobsdp = true; return fmt; } \
262	} /* distribution */ \
263	forall( ostype & \| basic_ostream( ostype ) ) { \
264	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ); \
265	OSTYPE_VOID( _Ostream_Manip(T) ); \
266	} // ?\|?
267
268	FLOATING_POINT_FMT_DECL( double )
269	FLOATING_POINT_FMT_DECL( long double )
270
271	// ********************************* character *********************************
272
273	static inline {
274	_Ostream_Manip(char) bin( char c ) { return (_Ostream_Manip(char))@{ c, 1, 0, 'b', { .all : 0 } }; }
275	_Ostream_Manip(char) oct( char c ) { return (_Ostream_Manip(char))@{ c, 1, 0, 'o', { .all : 0 } }; }
276	_Ostream_Manip(char) hex( char c ) { return (_Ostream_Manip(char))@{ c, 1, 0, 'x', { .all : 0 } }; }
277	_Ostream_Manip(char) wd( unsigned int w, char c ) { return (_Ostream_Manip(char))@{ c, w, 0, 'c', { .all : 0 } }; }
278	_Ostream_Manip(char) & wd( unsigned int w, _Ostream_Manip(char) & fmt ) { fmt.wd = w; return fmt; }
279	_Ostream_Manip(char) & left( _Ostream_Manip(char) & fmt ) { fmt.flags.left = true; return fmt; }
280	_Ostream_Manip(char) & upcase( _Ostream_Manip(char) & fmt ) { if ( fmt.base == 'x' \|\| fmt.base == 'b' ) fmt.base -= 32; /* upper case */ return fmt; }
281	_Ostream_Manip(char) & nobase( _Ostream_Manip(char) & fmt ) { fmt.flags.nobsdp = true; return fmt; }
282	} // distribution
283	forall( ostype & \| basic_ostream( ostype ) ) {
284	ostype & ?\|?( ostype & os, _Ostream_Manip(char) f );
285	OSTYPE_VOID( _Ostream_Manip(char) ); \
286	} // ?\|?
287
288	// ********************************* C string *********************************
289
290	static inline {
291	_Ostream_Manip(const char ) bin( const char s[] ) { return (_Ostream_Manip(const char ))@{ s, 1, 0, 'b', { .all : 0 } }; }
292	_Ostream_Manip(const char ) oct( const char s[] ) { return (_Ostream_Manip(const char ))@{ s, 1, 0, 'o', { .all : 0 } }; }
293	_Ostream_Manip(const char ) hex( const char s[] ) { return (_Ostream_Manip(const char ))@{ s, 1, 0, 'x', { .all : 0 } }; }
294	_Ostream_Manip(const char ) wd( unsigned int w, const char s[] ) { return (_Ostream_Manip(const char ))@{ s, w, 0, 's', { .all : 0 } }; }
295	_Ostream_Manip(const char ) wd( unsigned int w, unsigned int pc, const char s[] ) { return (_Ostream_Manip(const char ))@{ s, w, pc, 's', { .flags.pc : true } }; }
296	_Ostream_Manip(const char ) & wd( unsigned int w, _Ostream_Manip(const char ) & fmt ) { fmt.wd = w; return fmt; }
297	_Ostream_Manip(const char ) & wd( unsigned int w, unsigned int pc, _Ostream_Manip(const char ) & fmt ) { fmt.wd = w; fmt.pc = pc; fmt.flags.pc = true; return fmt; }
298	_Ostream_Manip(const char ) & left( _Ostream_Manip(const char ) & fmt ) { fmt.flags.left = true; return fmt; }
299	_Ostream_Manip(const char ) & nobase( _Ostream_Manip(const char ) & fmt ) { fmt.flags.nobsdp = true; return fmt; }
300	} // distribution
301	forall( ostype & \| basic_ostream( ostype ) ) {
302	ostype & ?\|?( ostype & os, _Ostream_Manip(const char *) f );
303	OSTYPE_VOID( _Ostream_Manip(const char *) ); \
304	} // ?\|?
305
306	// ********************************* istream *********************************
307
308	forall( istype & )
309	trait basic_istream {
310	// private
311	bool getANL$( istype & ); // get scan newline (on/off)
312	bool setANL$( istype &, bool ); // set scan newline (on/off)
313	// public
314	void nlOn( istype & ); // read newline
315	void nlOff( istype & ); // scan newline
316	int fmt( istype &, const char format[], ... ) __attribute__(( format(scanf, 2, 3) ));
317	istype & ungetc( istype &, char );
318	bool eof( istype & );
319	void clear( istype & );
320	}; // basic_istream
321
322	forall( istype & \| basic_istream( istype ) )
323	trait istream {
324	bool fail( istype & );
325	void open( istype & is, const char name[], const char mode[] );
326	void open( istype & is, const char name[] );
327	void close( istype & is );
328	istype & read( istype &, char [], size_t );
329	}; // istream
330
331	forall( T )
332	trait readable {
333	forall( istype & \| istream( istype ) ) istype & ?\|?( istype &, T );
334	}; // readable
335
336	forall( istype & \| basic_istream( istype ) ) {
337	istype & ?\|?( istype &, bool & );
338
339	istype & ?\|?( istype &, char & );
340	istype & ?\|?( istype &, signed char & );
341	istype & ?\|?( istype &, unsigned char & );
342
343	istype & ?\|?( istype &, short int & );
344	istype & ?\|?( istype &, unsigned short int & );
345	istype & ?\|?( istype &, int & );
346	istype & ?\|?( istype &, unsigned int & );
347	istype & ?\|?( istype &, long int & );
348	istype & ?\|?( istype &, unsigned long int & );
349	istype & ?\|?( istype &, long long int & );
350	istype & ?\|?( istype &, unsigned long long int & );
351	#if defined( __SIZEOF_INT128__ )
352	istype & ?\|?( istype &, int128 & );
353	istype & ?\|?( istype &, unsigned int128 & );
354	#endif // __SIZEOF_INT128__
355
356	istype & ?\|?( istype &, float & );
357	istype & ?\|?( istype &, double & );
358	istype & ?\|?( istype &, long double & );
359
360	istype & ?\|?( istype &, float _Complex & );
361	istype & ?\|?( istype &, double _Complex & );
362	istype & ?\|?( istype &, long double _Complex & );
363
364	istype & ?\|?( istype &, const char [] );
365
366	// manipulators
367	istype & ?\|?( istype &, istype & (*)( istype & ) );
368	istype & nl( istype & is );
369	istype & nlOn( istype & );
370	istype & nlOff( istype & );
371	} // distribution
372
373	// ********************************* exceptions *********************************
374
375	ExceptionDecl( cstring_length );
376	ExceptionDecl( missing_data );
377
378	// ********************************* manipulators *********************************
379
380	// skip does not compose with other C string manipulators.
381	struct _Istream_Cskip {
382	const char * scanset;
383	unsigned wd; // scan width
384	}; // _Istream_Cskip
385
386	static inline {
387	_Istream_Cskip skip( const char scanset[] ) { return (_Istream_Cskip)@{ scanset, 0 }; }
388	_Istream_Cskip skip( unsigned int wd ) { return (_Istream_Cskip)@{ 0p, wd }; }
389	} // distribution
390
391	struct _Istream_str_base {
392	union {
393	const char * scanset;
394	char delimiters[3]; // [0] => left, [1] => right
395	};
396	int wd; // width
397	union {
398	unsigned char all;
399	struct {
400	unsigned char ignore:1; // do not change input argument
401	unsigned char inex:1; // include/exclude characters in scanset
402	unsigned char delimiter:1; // delimit character
403	unsigned char rwd:1; // read width
404	} flags;
405	};
406	}; // _Istream_str_base
407
408	struct _Istream_Cstr {
409	char * s;
410	inline _Istream_str_base;
411	}; // _Istream_Cstr
412
413	struct _Istream_Cquoted {
414	_Istream_Cstr cstr;
415	}; // _Istream_Cquoted
416
417	static inline {
418	// width must include room for null terminator
419	_Istream_Cstr wdi( unsigned int wd, char s[] ) { return (_Istream_Cstr)@{ s, { {0p}, wd, {.all : 0} } }; }
420	_Istream_Cstr wdi( unsigned int wd, unsigned int rwd, char s[] ) {
421	if ( wd <= rwd ) throw (cstring_length){ &cstring_length_vt };
422	return (_Istream_Cstr)@{ s, { {0p}, rwd, {.flags.rwd : true} } };
423	}
424	_Istream_Cquoted & quoted( _Istream_Cstr & fmt, const char Ldelimiter = '"', const char Rdelimiter = '\0' ) {
425	fmt.delimiters[0] = Ldelimiter; fmt.delimiters[1] = Rdelimiter; fmt.delimiters[2] = '\0';
426	return (_Istream_Cquoted &)fmt;
427	}
428	_Istream_Cstr & getline( _Istream_Cstr & fmt, const char delimiter = '\n' ) {
429	fmt.delimiters[0] = delimiter; fmt.delimiters[1] = '\0'; fmt.flags.delimiter = true; fmt.flags.inex = true; return fmt;
430	}
431	_Istream_Cstr & incl( const char scanset[], _Istream_Cstr & fmt ) { fmt.scanset = scanset; fmt.flags.inex = false; return fmt; }
432	_Istream_Cstr & excl( const char scanset[], _Istream_Cstr & fmt ) { fmt.scanset = scanset; fmt.flags.inex = true; return fmt; }
433	_Istream_Cstr ignore( char s[] ) { return (_Istream_Cstr)@{ s, { {0p}, -1, {.flags.ignore : true} } }; }
434	_Istream_Cstr & ignore( _Istream_Cstr & fmt ) { fmt.flags.ignore = true; return fmt; }
435	} // distribution
436
437	forall( istype & \| basic_istream( istype ) ) {
438	istype & ?\|?( istype & is, _Istream_Cstr f );
439	istype & ?\|?( istype & is, _Istream_Cskip f );
440	istype & ?\|?( istype & is, _Istream_Cquoted f );
441	} // distribution
442
443	struct _Istream_Char {
444	bool ignore; // do not change input argument
445	}; // _Istream_Char
446
447	static inline {
448	_Istream_Char ignore( const char ) { return (_Istream_Char)@{ true }; }
449	_Istream_Char & ignore( _Istream_Char & fmt ) { fmt.ignore = true; return fmt; }
450	} // distribution
451	forall( istype & \| basic_istream( istype ) ) {
452	istype & ?\|?( istype & is, _Istream_Char f );
453	}
454
455	forall( T & \| sized( T ) )
456	struct _Istream_Manip {
457	T & val; // polymorphic base-type
458	int wd; // width
459	bool ignore; // do not change input argument
460	}; // _Istream_Manip
461
462	#define INPUT_FMT_DECL( T ) \
463	static inline { \
464	_Istream_Manip(T) ignore( const T & val ) { return (_Istream_Manip(T))@{ (T &)val, -1, true }; } \
465	_Istream_Manip(T) & ignore( _Istream_Manip(T) & fmt ) { fmt.ignore = true; return fmt; } \
466	_Istream_Manip(T) wdi( unsigned int wd, T & val ) { return (_Istream_Manip(T))@{ val, wd, false }; } \
467	_Istream_Manip(T) & wdi( unsigned int wd, _Istream_Manip(T) & fmt ) { fmt.wd = wd; return fmt; } \
468	} /* distribution */ \
469	forall( istype & \| basic_istream( istype ) ) { \
470	istype & ?\|?( istype & is, _Istream_Manip(T) f ); \
471	} // ?\|?
472
473	INPUT_FMT_DECL( signed char )
474	INPUT_FMT_DECL( unsigned char )
475	INPUT_FMT_DECL( signed short int )
476	INPUT_FMT_DECL( unsigned short int )
477	INPUT_FMT_DECL( signed int )
478	INPUT_FMT_DECL( unsigned int )
479	INPUT_FMT_DECL( signed long int )
480	INPUT_FMT_DECL( unsigned long int )
481	INPUT_FMT_DECL( signed long long int )
482	INPUT_FMT_DECL( unsigned long long int )
483
484	INPUT_FMT_DECL( float )
485	INPUT_FMT_DECL( double )
486	INPUT_FMT_DECL( long double )
487
488	INPUT_FMT_DECL( float _Complex )
489	INPUT_FMT_DECL( double _Complex )
490	INPUT_FMT_DECL( long double _Complex )
491
492	// ********************************* time *********************************
493
494	#include <time_t.hfa> // Duration (constructors) / Time (constructors)
495
496	forall( ostype & \| ostream( ostype ) ) {
497	ostype & ?\|?( ostype & os, Duration dur );
498	OSTYPE_VOID( Duration );
499	ostype & ?\|?( ostype & os, Time time );
500	OSTYPE_VOID( Time );
501	} // distribution
502
503	// Local Variables: //
504	// tab-width: 4 //
505	// End: //

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