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iostream.hfa @ fa5e1aa5

Last change on this file since fa5e1aa5 was 8a97248, checked in by Peter A. Buhr <pabuhr@…>, 22 months ago
switch from old trait syntax to new trait syntax using forall clause
Property mode set to `100644`
File size: 20.9 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 : Thu Feb 2 11:25:39 2023
13	// Update Count : 410
14	//
15
16	#pragma once
17
18	#include "iterator.hfa"
19
20
21	// ********************************* ostream *********************************
22
23
24	forall( ostype & )
25	trait basic_ostream {
26	// private
27	bool sepPrt$( ostype & ); // get separator state (on/off)
28	void sepReset$( ostype & ); // set separator state to default state
29	void sepReset$( ostype &, bool ); // set separator and default state
30	const char * sepGetCur$( ostype & ); // get current separator string
31	void sepSetCur$( ostype &, const char [] ); // set current separator string
32	bool getNL$( ostype & ); // check newline
33	void setNL$( ostype &, bool ); // saw newline
34	bool getANL$( ostype & ); // get auto newline (on/off)
35	bool getPrt$( ostype & ); // get fmt called in output cascade
36	void setPrt$( ostype &, bool ); // set fmt called in output cascade
37	// public
38	void sepOn( ostype & ); // turn separator state on
39	void sepOff( ostype & ); // turn separator state off
40	bool sepDisable( ostype & ); // set default state to off, and return previous state
41	bool sepEnable( ostype & ); // set default state to on, and return previous state
42	void nlOn( ostype & ); // turn auto-newline state on
43	void nlOff( ostype & ); // turn auto-newline state off
44
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	forall( ostype & \| basic_ostream( ostype ) ) {
77	ostype & ?\|?( ostype &, bool );
78	void ?\|?( ostype &, bool );
79
80	ostype & ?\|?( ostype &, char );
81	void ?\|?( ostype &, char );
82	ostype & ?\|?( ostype &, signed char );
83	void ?\|?( ostype &, signed char );
84	ostype & ?\|?( ostype &, unsigned char );
85	void ?\|?( ostype &, unsigned char );
86
87	ostype & ?\|?( ostype &, short int );
88	void ?\|?( ostype &, short int );
89	ostype & ?\|?( ostype &, unsigned short int );
90	void ?\|?( ostype &, unsigned short int );
91	ostype & ?\|?( ostype &, int );
92	void ?\|?( ostype &, int );
93	ostype & ?\|?( ostype &, unsigned int );
94	void ?\|?( ostype &, unsigned int );
95	ostype & ?\|?( ostype &, long int );
96	void ?\|?( ostype &, long int );
97	ostype & ?\|?( ostype &, long long int );
98	void ?\|?( ostype &, long long int );
99	ostype & ?\|?( ostype &, unsigned long int );
100	void ?\|?( ostype &, unsigned long int );
101	ostype & ?\|?( ostype &, unsigned long long int );
102	void ?\|?( ostype &, unsigned long long int );
103	#if defined( __SIZEOF_INT128__ )
104	ostype & ?\|?( ostype &, int128 );
105	void ?\|?( ostype &, int128 );
106	ostype & ?\|?( ostype &, unsigned int128 );
107	void ?\|?( ostype &, unsigned int128 );
108	#endif // __SIZEOF_INT128__
109
110	ostype & ?\|?( ostype &, float );
111	void ?\|?( ostype &, float );
112	ostype & ?\|?( ostype &, double );
113	void ?\|?( ostype &, double );
114	ostype & ?\|?( ostype &, long double );
115	void ?\|?( ostype &, long double );
116
117	ostype & ?\|?( ostype &, float _Complex );
118	void ?\|?( ostype &, float _Complex );
119	ostype & ?\|?( ostype &, double _Complex );
120	void ?\|?( ostype &, double _Complex );
121	ostype & ?\|?( ostype &, long double _Complex );
122	void ?\|?( ostype &, long double _Complex );
123
124	ostype & ?\|?( ostype &, const char [] );
125	void ?\|?( ostype &, const char [] );
126	// ostype & ?\|?( ostype &, const char16_t * );
127	#if ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 ) // char32_t == wchar_t => ambiguous
128	// ostype & ?\|?( ostype &, const char32_t * );
129	#endif // ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 )
130	// ostype & ?\|?( ostype &, const wchar_t * );
131	ostype & ?\|?( ostype &, const void * );
132	void ?\|?( ostype &, const void * );
133
134	// manipulators
135	ostype & ?\|?( ostype &, ostype & (*)( ostype & ) );
136	void ?\|?( ostype &, ostype & (*)( ostype & ) );
137	ostype & nl( ostype & );
138	ostype & nonl( ostype & );
139	ostype & sep( ostype & );
140	ostype & sepTuple( ostype & );
141	ostype & sepOn( ostype & );
142	ostype & sepOff( ostype & );
143	ostype & sepDisable( ostype & );
144	ostype & sepEnable( ostype & );
145	ostype & nlOn( ostype & );
146	ostype & nlOff( ostype & );
147	} // distribution
148
149	// tuples
150	forall( ostype &, T, Params... \| writeable( T, ostype ) \| { ostype & ?\|?( ostype &, Params ); } ) {
151	ostype & ?\|?( ostype & os, T arg, Params rest );
152	void ?\|?( ostype & os, T arg, Params rest );
153	} // distribution
154
155	// writes the range [begin, end) to the given stream
156	forall( ostype &, elt_type \| writeable( elt_type, ostype ), iterator_type \| iterator( iterator_type, elt_type ) ) {
157	void write( iterator_type begin, iterator_type end, ostype & os );
158	void write_reverse( iterator_type begin, iterator_type end, ostype & os );
159	} // distribution
160
161	// ********************************* manipulators *********************************
162
163	forall( T )
164	struct _Ostream_Manip {
165	T val; // polymorphic base-type
166	int wd, pc; // width, precision: signed for computations
167	char base; // numeric base / floating-point style
168	union {
169	unsigned char all;
170	struct {
171	unsigned char eng:1; // engineering notation
172	unsigned char neg:1; // val is negative
173	unsigned char pc:1; // precision specified
174	unsigned char left:1; // left justify
175	unsigned char nobsdp:1; // base prefix / decimal point
176	unsigned char sign:1; // plus / minus sign
177	unsigned char pad0:1; // zero pad
178	} flags;
179	};
180	}; // _Ostream_Manip
181
182	// ********************************* integral *********************************
183
184	// See 6.7.9. 19) The initialization shall occur in initializer list order, each initializer provided for a particular
185	// subobject overriding any previously listed initializer for the same subobject; ***all subobjects that are not
186	// initialized explicitly shall be initialized implicitly the same as objects that have static storage duration.***
187
188	#define IntegralFMTDecl( T, CODE ) \
189	static inline { \
190	_Ostream_Manip(T) bin( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'b', { .all : 0 } }; } \
191	_Ostream_Manip(T) oct( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'o', { .all : 0 } }; } \
192	_Ostream_Manip(T) hex( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'x', { .all : 0 } }; } \
193	_Ostream_Manip(T) wd( unsigned int w, T val ) { return (_Ostream_Manip(T))@{ val, w, 0, CODE, { .all : 0 } }; } \
194	_Ostream_Manip(T) wd( unsigned int w, unsigned int pc, T val ) { return (_Ostream_Manip(T))@{ val, w, pc, CODE, { .flags.pc : true } }; } \
195	_Ostream_Manip(T) & wd( unsigned int w, _Ostream_Manip(T) & fmt ) { fmt.wd = w; return fmt; } \
196	_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; } \
197	_Ostream_Manip(T) & left( _Ostream_Manip(T) & fmt ) { fmt.flags.left = true; return fmt; } \
198	_Ostream_Manip(T) & upcase( _Ostream_Manip(T) & fmt ) { if ( fmt.base == 'x' \|\| fmt.base == 'b' ) fmt.base -= 32; /* upper case */ return fmt; } \
199	_Ostream_Manip(T) & nobase( _Ostream_Manip(T) & fmt ) { fmt.flags.nobsdp = true; return fmt; } \
200	_Ostream_Manip(T) & pad0( _Ostream_Manip(T) & fmt ) { fmt.flags.pad0 = true; return fmt; } \
201	_Ostream_Manip(T) sign( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, CODE, { .flags.sign : true } }; } \
202	_Ostream_Manip(T) & sign( _Ostream_Manip(T) & fmt ) { fmt.flags.sign = true; return fmt; } \
203	} /* distribution */ \
204	forall( ostype & \| basic_ostream( ostype ) ) { \
205	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ); \
206	void ?\|?( ostype & os, _Ostream_Manip(T) f ); \
207	} // ?\|?
208
209	IntegralFMTDecl( signed char, 'd' )
210	IntegralFMTDecl( unsigned char, 'u' )
211	IntegralFMTDecl( signed short int, 'd' )
212	IntegralFMTDecl( unsigned short int, 'u' )
213	IntegralFMTDecl( signed int, 'd' )
214	IntegralFMTDecl( unsigned int, 'u' )
215	IntegralFMTDecl( signed long int, 'd' )
216	IntegralFMTDecl( unsigned long int, 'u' )
217	IntegralFMTDecl( signed long long int, 'd' )
218	IntegralFMTDecl( unsigned long long int, 'u' )
219	#if defined( __SIZEOF_INT128__ )
220	IntegralFMTDecl( int128, 'd' )
221	IntegralFMTDecl( unsigned int128, 'u' )
222	#endif // __SIZEOF_INT128__
223
224	// ********************************* floating point *********************************
225
226	// Default suffix for values with no fraction is "."
227	#define FloatingPointFMTDecl( T ) \
228	static inline { \
229	_Ostream_Manip(T) hex( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'a', { .all : 0 } }; } \
230	_Ostream_Manip(T) sci( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'e', { .all : 0 } }; } \
231	_Ostream_Manip(T) eng( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'g', { .flags.eng : true } }; } \
232	_Ostream_Manip(T) wd( unsigned int w, T val ) { return (_Ostream_Manip(T))@{ val, w, 0, 'g', { .all : 0 } }; } \
233	_Ostream_Manip(T) wd( unsigned int w, unsigned int pc, T val ) { return (_Ostream_Manip(T))@{ val, w, pc, 'f', { .flags.pc : true } }; } \
234	_Ostream_Manip(T) ws( unsigned int w, unsigned int pc, T val ) { return (_Ostream_Manip(T))@{ val, w, pc, 'g', { .flags.pc : true } }; } \
235	_Ostream_Manip(T) & wd( unsigned int w, _Ostream_Manip(T) & fmt ) { if ( fmt.flags.eng ) fmt.base = 'f'; fmt.wd = w; return fmt; } \
236	_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; } \
237	_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; } \
238	_Ostream_Manip(T) & left( _Ostream_Manip(T) & fmt ) { fmt.flags.left = true; return fmt; } \
239	_Ostream_Manip(T) upcase( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'G', { .all : 0 } }; } \
240	_Ostream_Manip(T) & upcase( _Ostream_Manip(T) & fmt ) { fmt.base -= 32; /* upper case */ return fmt; } \
241	_Ostream_Manip(T) & pad0( _Ostream_Manip(T) & fmt ) { fmt.flags.pad0 = true; return fmt; } \
242	_Ostream_Manip(T) sign( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'g', { .flags.sign : true } }; } \
243	_Ostream_Manip(T) & sign( _Ostream_Manip(T) & fmt ) { fmt.flags.sign = true; return fmt; } \
244	_Ostream_Manip(T) nodp( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'g', { .flags.nobsdp : true } }; } \
245	_Ostream_Manip(T) & nodp( _Ostream_Manip(T) & fmt ) { fmt.flags.nobsdp = true; return fmt; } \
246	_Ostream_Manip(T) unit( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'g', { .flags.nobsdp : true } }; } \
247	_Ostream_Manip(T) & unit( _Ostream_Manip(T) & fmt ) { fmt.flags.nobsdp = true; return fmt; } \
248	} /* distribution */ \
249	forall( ostype & \| basic_ostream( ostype ) ) { \
250	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ); \
251	void ?\|?( ostype & os, _Ostream_Manip(T) f ); \
252	} // ?\|?
253
254	FloatingPointFMTDecl( double )
255	FloatingPointFMTDecl( long double )
256
257	// ********************************* character *********************************
258
259	static inline {
260	_Ostream_Manip(char) bin( char c ) { return (_Ostream_Manip(char))@{ c, 1, 0, 'b', { .all : 0 } }; }
261	_Ostream_Manip(char) oct( char c ) { return (_Ostream_Manip(char))@{ c, 1, 0, 'o', { .all : 0 } }; }
262	_Ostream_Manip(char) hex( char c ) { return (_Ostream_Manip(char))@{ c, 1, 0, 'x', { .all : 0 } }; }
263	_Ostream_Manip(char) wd( unsigned int w, char c ) { return (_Ostream_Manip(char))@{ c, w, 0, 'c', { .all : 0 } }; }
264	_Ostream_Manip(char) & wd( unsigned int w, _Ostream_Manip(char) & fmt ) { fmt.wd = w; return fmt; }
265	_Ostream_Manip(char) & left( _Ostream_Manip(char) & fmt ) { fmt.flags.left = true; return fmt; }
266	_Ostream_Manip(char) & upcase( _Ostream_Manip(char) & fmt ) { if ( fmt.base == 'x' \|\| fmt.base == 'b' ) fmt.base -= 32; /* upper case */ return fmt; }
267	_Ostream_Manip(char) & nobase( _Ostream_Manip(char) & fmt ) { fmt.flags.nobsdp = true; return fmt; }
268	} // distribution
269	forall( ostype & \| basic_ostream( ostype ) ) {
270	ostype & ?\|?( ostype & os, _Ostream_Manip(char) f );
271	void ?\|?( ostype & os, _Ostream_Manip(char) f );
272	} // ?\|?
273
274	// ********************************* C string *********************************
275
276	static inline {
277	_Ostream_Manip(const char ) bin( const char s[] ) { return (_Ostream_Manip(const char ))@{ s, 1, 0, 'b', { .all : 0 } }; }
278	_Ostream_Manip(const char ) oct( const char s[] ) { return (_Ostream_Manip(const char ))@{ s, 1, 0, 'o', { .all : 0 } }; }
279	_Ostream_Manip(const char ) hex( const char s[] ) { return (_Ostream_Manip(const char ))@{ s, 1, 0, 'x', { .all : 0 } }; }
280	_Ostream_Manip(const char ) wd( unsigned int w, const char s[] ) { return (_Ostream_Manip(const char ))@{ s, w, 0, 's', { .all : 0 } }; }
281	_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 } }; }
282	_Ostream_Manip(const char ) & wd( unsigned int w, _Ostream_Manip(const char ) & fmt ) { fmt.wd = w; return fmt; }
283	_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; }
284	_Ostream_Manip(const char ) & left( _Ostream_Manip(const char ) & fmt ) { fmt.flags.left = true; return fmt; }
285	_Ostream_Manip(const char ) & nobase( _Ostream_Manip(const char ) & fmt ) { fmt.flags.nobsdp = true; return fmt; }
286	} // distribution
287	forall( ostype & \| basic_ostream( ostype ) ) {
288	ostype & ?\|?( ostype & os, _Ostream_Manip(const char *) f );
289	void ?\|?( ostype & os, _Ostream_Manip(const char *) f );
290	} // ?\|?
291
292
293	// ********************************* istream *********************************
294
295
296	forall( istype & )
297	trait basic_istream {
298	// private
299	bool getANL$( istype & ); // get scan newline (on/off)
300	// public
301	void nlOn( istype & ); // read newline
302	void nlOff( istype & ); // scan newline
303	void ends( istype & os ); // end of output statement
304	int fmt( istype &, const char format[], ... ) __attribute__(( format(scanf, 2, 3) ));
305	istype & ungetc( istype &, char );
306	bool eof( istype & );
307	}; // basic_istream
308
309	forall( istype & \| basic_istream( istype ) )
310	trait istream {
311	bool fail( istype & );
312	void clear( istype & );
313	void open( istype & is, const char name[] );
314	void close( istype & is );
315	istype & read( istype &, char [], size_t );
316	}; // istream
317
318	forall( T )
319	trait readable {
320	forall( istype & \| istream( istype ) ) istype & ?\|?( istype &, T );
321	}; // readable
322
323	forall( istype & \| basic_istream( istype ) ) {
324	istype & ?\|?( istype &, bool & );
325	void ?\|?( istype &, bool & );
326
327	istype & ?\|?( istype &, char & );
328	void ?\|?( istype &, char & );
329	istype & ?\|?( istype &, signed char & );
330	void ?\|?( istype &, signed char & );
331	istype & ?\|?( istype &, unsigned char & );
332	void ?\|?( istype &, unsigned char & );
333
334	istype & ?\|?( istype &, short int & );
335	void ?\|?( istype &, short int & );
336	istype & ?\|?( istype &, unsigned short int & );
337	void ?\|?( istype &, unsigned short int & );
338	istype & ?\|?( istype &, int & );
339	void ?\|?( istype &, int & );
340	istype & ?\|?( istype &, unsigned int & );
341	void ?\|?( istype &, unsigned int & );
342	istype & ?\|?( istype &, long int & );
343	void ?\|?( istype &, long int & );
344	istype & ?\|?( istype &, unsigned long int & );
345	void ?\|?( istype &, unsigned long int & );
346	istype & ?\|?( istype &, long long int & );
347	void ?\|?( istype &, long long int & );
348	istype & ?\|?( istype &, unsigned long long int & );
349	void ?\|?( istype &, unsigned long long int & );
350	#if defined( __SIZEOF_INT128__ )
351	istype & ?\|?( istype &, int128 & );
352	void ?\|?( istype &, int128 & );
353	istype & ?\|?( istype &, unsigned int128 & );
354	void ?\|?( istype &, unsigned int128 & );
355	#endif // __SIZEOF_INT128__
356
357	istype & ?\|?( istype &, float & );
358	void ?\|?( istype &, float & );
359	istype & ?\|?( istype &, double & );
360	void ?\|?( istype &, double & );
361	istype & ?\|?( istype &, long double & );
362	void ?\|?( istype &, long double & );
363
364	istype & ?\|?( istype &, float _Complex & );
365	void ?\|?( istype &, float _Complex & );
366	istype & ?\|?( istype &, double _Complex & );
367	void ?\|?( istype &, double _Complex & );
368	istype & ?\|?( istype &, long double _Complex & );
369	void ?\|?( istype &, long double _Complex & );
370
371	// istype & ?\|?( istype &, const char [] );
372	istype & ?\|?( istype &, char [] );
373	void ?\|?( istype &, char [] );
374
375	// manipulators
376	istype & ?\|?( istype &, istype & (*)( istype & ) );
377	void ?\|?( istype &, istype & (*)( istype & ) );
378	istype & nl( istype & is );
379	istype & nlOn( istype & );
380	istype & nlOff( istype & );
381	} // distribution
382
383	// ********************************* manipulators *********************************
384
385	struct _Istream_Cstr {
386	char * s;
387	const char * scanset;
388	int wd; // width
389	union {
390	unsigned char all;
391	struct {
392	unsigned char ignore:1; // do not change input argument
393	unsigned char inex:1; // include/exclude characters in scanset
394	} flags;
395	};
396	}; // _Istream_Cstr
397
398	static inline {
399	_Istream_Cstr skip( const char scanset[] ) { return (_Istream_Cstr){ 0p, scanset, -1, { .all : 0 } }; }
400	_Istream_Cstr skip( unsigned int n ) { return (_Istream_Cstr){ 0p, 0p, n, { .all : 0 } }; }
401	_Istream_Cstr incl( const char scanset[], char * s ) { return (_Istream_Cstr){ s, scanset, -1, { .flags.inex : false } }; }
402	_Istream_Cstr & incl( const char scanset[], _Istream_Cstr & fmt ) { fmt.scanset = scanset; fmt.flags.inex = false; return fmt; }
403	_Istream_Cstr excl( const char scanset[], char * s ) { return (_Istream_Cstr){ s, scanset, -1, { .flags.inex : true } }; }
404	_Istream_Cstr & excl( const char scanset[], _Istream_Cstr & fmt ) { fmt.scanset = scanset; fmt.flags.inex = true; return fmt; }
405	_Istream_Cstr ignore( char s[] ) { return (_Istream_Cstr)@{ s, 0p, -1, { .flags.ignore : true } }; }
406	_Istream_Cstr & ignore( _Istream_Cstr & fmt ) { fmt.flags.ignore = true; return fmt; }
407	_Istream_Cstr wdi( unsigned int w, char s[] ) { return (_Istream_Cstr)@{ s, 0p, w, { .all : 0 } }; }
408	_Istream_Cstr & wdi( unsigned int w, _Istream_Cstr & fmt ) { fmt.wd = w; return fmt; }
409	} // distribution
410	forall( istype & \| basic_istream( istype ) ) {
411	istype & ?\|?( istype & is, _Istream_Cstr f );
412	void ?\|?( istype & is, _Istream_Cstr f );
413	}
414
415	struct _Istream_Char {
416	bool ignore; // do not change input argument
417	}; // _Istream_Char
418
419	static inline {
420	_Istream_Char ignore( const char ) { return (_Istream_Char)@{ true }; }
421	_Istream_Char & ignore( _Istream_Char & fmt ) { fmt.ignore = true; return fmt; }
422	} // distribution
423	forall( istype & \| basic_istream( istype ) ) {
424	istype & ?\|?( istype & is, _Istream_Char f );
425	void ?\|?( istype & is, _Istream_Char f );
426	}
427
428	forall( T & \| sized( T ) )
429	struct _Istream_Manip {
430	T & val; // polymorphic base-type
431	int wd; // width
432	bool ignore; // do not change input argument
433	}; // _Istream_Manip
434
435	#define InputFMTDecl( T ) \
436	static inline { \
437	_Istream_Manip(T) ignore( const T & val ) { return (_Istream_Manip(T))@{ (T &)val, -1, true }; } \
438	_Istream_Manip(T) & ignore( _Istream_Manip(T) & fmt ) { fmt.ignore = true; return fmt; } \
439	_Istream_Manip(T) wdi( unsigned int w, T & val ) { return (_Istream_Manip(T))@{ val, w, false }; } \
440	_Istream_Manip(T) & wdi( unsigned int w, _Istream_Manip(T) & fmt ) { fmt.wd = w; return fmt; } \
441	} /* distribution */ \
442	forall( istype & \| basic_istream( istype ) ) { \
443	istype & ?\|?( istype & is, _Istream_Manip(T) f ); \
444	void ?\|?( istype & is, _Istream_Manip(T) f ); \
445	} // ?\|?
446
447	InputFMTDecl( signed char )
448	InputFMTDecl( unsigned char )
449	InputFMTDecl( signed short int )
450	InputFMTDecl( unsigned short int )
451	InputFMTDecl( signed int )
452	InputFMTDecl( unsigned int )
453	InputFMTDecl( signed long int )
454	InputFMTDecl( unsigned long int )
455	InputFMTDecl( signed long long int )
456	InputFMTDecl( unsigned long long int )
457
458	InputFMTDecl( float )
459	InputFMTDecl( double )
460	InputFMTDecl( long double )
461
462	InputFMTDecl( float _Complex )
463	InputFMTDecl( double _Complex )
464	InputFMTDecl( long double _Complex )
465
466
467	// ********************************* time *********************************
468
469
470	#include <time_t.hfa> // Duration (constructors) / Time (constructors)
471
472	forall( ostype & \| ostream( ostype ) ) {
473	ostype & ?\|?( ostype & os, Duration dur );
474	void ?\|?( ostype & os, Duration dur );
475	ostype & ?\|?( ostype & os, Time time );
476	void ?\|?( ostype & os, Time time );
477	} // distribution
478
479	// Local Variables: //
480	// tab-width: 4 //
481	// End: //

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