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iostream.hfa @ 5ad2c6c7

Last change on this file since 5ad2c6c7 was 5ad2c6c7, checked in by Peter A. Buhr <pabuhr@…>, 12 months ago
update reading C strings with size check
Property mode set to `100644`
File size: 21.5 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 Aug 24 11:35:02 2023
13	// Update Count : 530
14	//
15
16	#pragma once
17
18	#include "iterator.hfa"
19	#include "Exception.hfa"
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 & ); // get newline
33	bool setNL$( ostype &, bool ); // set newline
34	bool getANL$( ostype & ); // get auto newline (on/off)
35	bool setANL$( ostype &, bool ); // set auto newline (on/off), and return previous state
36	bool getPrt$( ostype & ); // get fmt called in output cascade
37	bool setPrt$( ostype &, bool ); // set fmt called in output cascade
38	// public
39	void nlOn( ostype & ); // turn auto-newline state on
40	void nlOff( ostype & ); // turn auto-newline state off
41
42	void sep( ostype & ); // turn separator state on
43	void nosep( ostype & ); // turn separator state off
44	bool sepOn( ostype & ); // set default state to on, and return previous state
45	bool sepOff( ostype & ); // set default state to off, and return previous state
46	const char * sepGet( ostype & ); // get separator string
47	void sepSet( ostype &, const char [] ); // set separator to string (15 character maximum)
48	const char * sepGetTuple( ostype & ); // get tuple separator string
49	void sepSetTuple( ostype &, const char [] ); // set tuple separator to string (15 character maximum)
50
51	void ends( ostype & ); // end of output statement
52	int fmt( ostype &, const char format[], ... ) __attribute__(( format(printf, 2, 3) ));
53	}; // basic_ostream
54
55	forall( ostype & \| basic_ostream( ostype ) )
56	trait ostream {
57	bool fail( ostype & ); // operation failed?
58	void clear( ostype & );
59	int flush( ostype & );
60	void open( ostype &, const char name[], const char mode[] );
61	void close( ostype & );
62	ostype & write( ostype &, const char [], size_t );
63	}; // ostream
64
65	// forall( T )
66	// trait writeable {
67	// forall( ostype & \| ostream( ostype ) ) ostype & ?\|?( ostype &, T );
68	// }; // writeable
69
70	forall( T, ostype & \| ostream( ostype ) )
71	trait writeable {
72	ostype & ?\|?( ostype &, T );
73	}; // writeable
74
75	// implement writable for intrinsic types
76
77	#define OSTYPE_VOID( T ) void ?\|?( ostype &, T )
78	#define OSTYPE_VOID_IMPL( T ) \
79	void ?\|?( ostype & os, T t ) { \
80	(ostype &)(os \| t); ends( os ); \
81	} // ?\|?
82
83	forall( ostype & \| basic_ostream( ostype ) ) {
84	ostype & ?\|?( ostype &, bool );
85	OSTYPE_VOID( bool );
86
87	ostype & ?\|?( ostype &, char );
88	OSTYPE_VOID( char );
89	ostype & ?\|?( ostype &, signed char );
90	OSTYPE_VOID( signed char );
91	ostype & ?\|?( ostype &, unsigned char );
92	OSTYPE_VOID( unsigned char );
93
94	ostype & ?\|?( ostype &, short int );
95	OSTYPE_VOID( short int );
96	ostype & ?\|?( ostype &, unsigned short int );
97	OSTYPE_VOID( unsigned short int );
98	ostype & ?\|?( ostype &, int );
99	OSTYPE_VOID( int );
100	ostype & ?\|?( ostype &, unsigned int );
101	OSTYPE_VOID( unsigned int );
102	ostype & ?\|?( ostype &, long int );
103	OSTYPE_VOID( long int );
104	ostype & ?\|?( ostype &, long long int );
105	OSTYPE_VOID( long long int );
106	ostype & ?\|?( ostype &, unsigned long int );
107	OSTYPE_VOID( unsigned long int );
108	ostype & ?\|?( ostype &, unsigned long long int );
109	OSTYPE_VOID( unsigned long long int );
110	#if defined( __SIZEOF_INT128__ )
111	ostype & ?\|?( ostype &, int128 );
112	OSTYPE_VOID( int128 );
113	ostype & ?\|?( ostype &, unsigned int128 );
114	OSTYPE_VOID( unsigned int128 );
115	#endif // __SIZEOF_INT128__
116
117	ostype & ?\|?( ostype &, float );
118	OSTYPE_VOID( float );
119	ostype & ?\|?( ostype &, double );
120	OSTYPE_VOID( double );
121	ostype & ?\|?( ostype &, long double );
122	OSTYPE_VOID( long double );
123
124	ostype & ?\|?( ostype &, float _Complex );
125	OSTYPE_VOID( float _Complex );
126	ostype & ?\|?( ostype &, double _Complex );
127	OSTYPE_VOID( double _Complex );
128	ostype & ?\|?( ostype &, long double _Complex );
129	OSTYPE_VOID( long double _Complex );
130
131	ostype & ?\|?( ostype &, const char [] );
132	OSTYPE_VOID( const char [] );
133	// ostype & ?\|?( ostype &, const char16_t [] );
134	#if ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 ) // char32_t == wchar_t => ambiguous
135	// ostype & ?\|?( ostype &, const char32_t [] );
136	#endif // ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 )
137	// ostype & ?\|?( ostype &, const wchar_t [] );
138	ostype & ?\|?( ostype &, const void * );
139	OSTYPE_VOID( const void * );
140
141	// FIX-ME: does not work so using macros
142	// forall( T \| { ostype & ?\|?( ostype &, T ); } )
143	// void ?\|?( ostype & os, T );
144
145	// manipulators
146	ostype & ?\|?( ostype &, ostype & (*)( ostype & ) );
147	OSTYPE_VOID( ostype & (*)( ostype & ) );
148
149	ostype & nl( ostype & );
150	ostype & nonl( ostype & );
151	ostype & nlOn( ostype & );
152	ostype & nlOff( ostype & );
153
154	ostype & sepVal( ostype & );
155	ostype & sepTupleVal( ostype & );
156	ostype & sep( ostype & );
157	ostype & nosep( ostype & );
158	ostype & sepOn( ostype & );
159	ostype & sepOff( ostype & );
160	} // distribution
161
162	// tuples
163	forall( ostype &, T, Params... \| writeable( T, ostype ) \| { ostype & ?\|?( ostype &, Params ); } ) {
164	ostype & ?\|?( ostype & os, T arg, Params rest );
165	void ?\|?( ostype & os, T arg, Params rest );
166	} // distribution
167
168	// writes the range [begin, end) to the given stream
169	forall( ostype &, elt_type \| writeable( elt_type, ostype ), iterator_type \| iterator( iterator_type, elt_type ) ) {
170	void write( iterator_type begin, iterator_type end, ostype & os );
171	void write_reverse( iterator_type begin, iterator_type end, ostype & os );
172	} // distribution
173
174	// ********************************* manipulators *********************************
175
176	struct _Ostream_Flags {
177	unsigned char eng:1; // engineering notation
178	unsigned char neg:1; // val is negative
179	unsigned char pc:1; // precision specified
180	unsigned char left:1; // left justify
181	unsigned char nobsdp:1; // base prefix / decimal point
182	unsigned char sign:1; // plus / minus sign
183	unsigned char pad0:1; // zero pad
184	};
185
186	forall( T )
187	struct _Ostream_Manip {
188	T val; // polymorphic base-type
189	int wd, pc; // width, precision: signed for computations
190	char base; // numeric base / floating-point style
191	union {
192	unsigned char all;
193	_Ostream_Flags flags;
194	};
195	}; // _Ostream_Manip
196
197	// ********************************* integral *********************************
198
199	// See 6.7.9. 19) The initialization shall occur in initializer list order, each initializer provided for a particular
200	// subobject overriding any previously listed initializer for the same subobject; ***all subobjects that are not
201	// initialized explicitly shall be initialized implicitly the same as objects that have static storage duration.***
202
203	#define INTEGRAL_FMT_DECL( T, CODE ) \
204	static inline { \
205	_Ostream_Manip(T) bin( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'b', { .all : 0 } }; } \
206	_Ostream_Manip(T) oct( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'o', { .all : 0 } }; } \
207	_Ostream_Manip(T) hex( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'x', { .all : 0 } }; } \
208	_Ostream_Manip(T) wd( unsigned int w, T val ) { return (_Ostream_Manip(T))@{ val, w, 0, CODE, { .all : 0 } }; } \
209	_Ostream_Manip(T) wd( unsigned int w, unsigned int pc, T val ) { return (_Ostream_Manip(T))@{ val, w, pc, CODE, { .flags.pc : true } }; } \
210	_Ostream_Manip(T) & wd( unsigned int w, _Ostream_Manip(T) & fmt ) { fmt.wd = w; return fmt; } \
211	_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; } \
212	_Ostream_Manip(T) & left( _Ostream_Manip(T) & fmt ) { fmt.flags.left = true; return fmt; } \
213	_Ostream_Manip(T) & upcase( _Ostream_Manip(T) & fmt ) { if ( fmt.base == 'x' \|\| fmt.base == 'b' ) fmt.base -= 32; /* upper case */ return fmt; } \
214	_Ostream_Manip(T) & nobase( _Ostream_Manip(T) & fmt ) { fmt.flags.nobsdp = true; return fmt; } \
215	_Ostream_Manip(T) & pad0( _Ostream_Manip(T) & fmt ) { fmt.flags.pad0 = true; return fmt; } \
216	_Ostream_Manip(T) sign( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, CODE, { .flags.sign : true } }; } \
217	_Ostream_Manip(T) & sign( _Ostream_Manip(T) & fmt ) { fmt.flags.sign = true; return fmt; } \
218	} /* distribution */ \
219	forall( ostype & \| basic_ostream( ostype ) ) { \
220	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ); \
221	OSTYPE_VOID( _Ostream_Manip(T) ); \
222	} // ?\|?
223
224	INTEGRAL_FMT_DECL( signed char, 'd' )
225	INTEGRAL_FMT_DECL( unsigned char, 'u' )
226	INTEGRAL_FMT_DECL( signed short int, 'd' )
227	INTEGRAL_FMT_DECL( unsigned short int, 'u' )
228	INTEGRAL_FMT_DECL( signed int, 'd' )
229	INTEGRAL_FMT_DECL( unsigned int, 'u' )
230	INTEGRAL_FMT_DECL( signed long int, 'd' )
231	INTEGRAL_FMT_DECL( unsigned long int, 'u' )
232	INTEGRAL_FMT_DECL( signed long long int, 'd' )
233	INTEGRAL_FMT_DECL( unsigned long long int, 'u' )
234	#if defined( __SIZEOF_INT128__ )
235	INTEGRAL_FMT_DECL( int128, 'd' )
236	INTEGRAL_FMT_DECL( unsigned int128, 'u' )
237	#endif // __SIZEOF_INT128__
238
239	// ********************************* floating point *********************************
240
241	// Default suffix for values with no fraction is "."
242	#define FLOATING_POINT_FMT_DECL( T ) \
243	static inline { \
244	_Ostream_Manip(T) hex( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'a', { .all : 0 } }; } \
245	_Ostream_Manip(T) sci( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'e', { .all : 0 } }; } \
246	_Ostream_Manip(T) eng( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'g', { .flags.eng : true } }; } \
247	_Ostream_Manip(T) wd( unsigned int w, T val ) { return (_Ostream_Manip(T))@{ val, w, 0, 'g', { .all : 0 } }; } \
248	_Ostream_Manip(T) wd( unsigned int w, unsigned int pc, T val ) { return (_Ostream_Manip(T))@{ val, w, pc, 'f', { .flags.pc : true } }; } \
249	_Ostream_Manip(T) ws( unsigned int w, unsigned int pc, T val ) { return (_Ostream_Manip(T))@{ val, w, pc, 'g', { .flags.pc : true } }; } \
250	_Ostream_Manip(T) & wd( unsigned int w, _Ostream_Manip(T) & fmt ) { if ( fmt.flags.eng ) fmt.base = 'f'; fmt.wd = w; return fmt; } \
251	_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; } \
252	_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; } \
253	_Ostream_Manip(T) & left( _Ostream_Manip(T) & fmt ) { fmt.flags.left = true; return fmt; } \
254	_Ostream_Manip(T) upcase( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'G', { .all : 0 } }; } \
255	_Ostream_Manip(T) & upcase( _Ostream_Manip(T) & fmt ) { fmt.base -= 32; /* upper case */ return fmt; } \
256	_Ostream_Manip(T) & pad0( _Ostream_Manip(T) & fmt ) { fmt.flags.pad0 = true; return fmt; } \
257	_Ostream_Manip(T) sign( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'g', { .flags.sign : true } }; } \
258	_Ostream_Manip(T) & sign( _Ostream_Manip(T) & fmt ) { fmt.flags.sign = true; return fmt; } \
259	_Ostream_Manip(T) nodp( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'g', { .flags.nobsdp : true } }; } \
260	_Ostream_Manip(T) & nodp( _Ostream_Manip(T) & fmt ) { fmt.flags.nobsdp = true; return fmt; } \
261	_Ostream_Manip(T) unit( T val ) { return (_Ostream_Manip(T))@{ val, 1, 0, 'g', { .flags.nobsdp : true } }; } \
262	_Ostream_Manip(T) & unit( _Ostream_Manip(T) & fmt ) { fmt.flags.nobsdp = true; return fmt; } \
263	} /* distribution */ \
264	forall( ostype & \| basic_ostream( ostype ) ) { \
265	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ); \
266	OSTYPE_VOID( _Ostream_Manip(T) ); \
267	} // ?\|?
268
269	FLOATING_POINT_FMT_DECL( double )
270	FLOATING_POINT_FMT_DECL( long double )
271
272	// ********************************* character *********************************
273
274	static inline {
275	_Ostream_Manip(char) bin( char c ) { return (_Ostream_Manip(char))@{ c, 1, 0, 'b', { .all : 0 } }; }
276	_Ostream_Manip(char) oct( char c ) { return (_Ostream_Manip(char))@{ c, 1, 0, 'o', { .all : 0 } }; }
277	_Ostream_Manip(char) hex( char c ) { return (_Ostream_Manip(char))@{ c, 1, 0, 'x', { .all : 0 } }; }
278	_Ostream_Manip(char) wd( unsigned int w, char c ) { return (_Ostream_Manip(char))@{ c, w, 0, 'c', { .all : 0 } }; }
279	_Ostream_Manip(char) & wd( unsigned int w, _Ostream_Manip(char) & fmt ) { fmt.wd = w; return fmt; }
280	_Ostream_Manip(char) & left( _Ostream_Manip(char) & fmt ) { fmt.flags.left = true; return fmt; }
281	_Ostream_Manip(char) & upcase( _Ostream_Manip(char) & fmt ) { if ( fmt.base == 'x' \|\| fmt.base == 'b' ) fmt.base -= 32; /* upper case */ return fmt; }
282	_Ostream_Manip(char) & nobase( _Ostream_Manip(char) & fmt ) { fmt.flags.nobsdp = true; return fmt; }
283	} // distribution
284	forall( ostype & \| basic_ostream( ostype ) ) {
285	ostype & ?\|?( ostype & os, _Ostream_Manip(char) f );
286	OSTYPE_VOID( _Ostream_Manip(char) ); \
287	} // ?\|?
288
289	// ********************************* C string *********************************
290
291	static inline {
292	_Ostream_Manip(const char ) bin( const char s[] ) { return (_Ostream_Manip(const char ))@{ s, 1, 0, 'b', { .all : 0 } }; }
293	_Ostream_Manip(const char ) oct( const char s[] ) { return (_Ostream_Manip(const char ))@{ s, 1, 0, 'o', { .all : 0 } }; }
294	_Ostream_Manip(const char ) hex( const char s[] ) { return (_Ostream_Manip(const char ))@{ s, 1, 0, 'x', { .all : 0 } }; }
295	_Ostream_Manip(const char ) wd( unsigned int w, const char s[] ) { return (_Ostream_Manip(const char ))@{ s, w, 0, 's', { .all : 0 } }; }
296	_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 } }; }
297	_Ostream_Manip(const char ) & wd( unsigned int w, _Ostream_Manip(const char ) & fmt ) { fmt.wd = w; return fmt; }
298	_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; }
299	_Ostream_Manip(const char ) & left( _Ostream_Manip(const char ) & fmt ) { fmt.flags.left = true; return fmt; }
300	_Ostream_Manip(const char ) & nobase( _Ostream_Manip(const char ) & fmt ) { fmt.flags.nobsdp = true; return fmt; }
301	} // distribution
302	forall( ostype & \| basic_ostream( ostype ) ) {
303	ostype & ?\|?( ostype & os, _Ostream_Manip(const char *) f );
304	OSTYPE_VOID( _Ostream_Manip(const char *) ); \
305	} // ?\|?
306
307
308	// ********************************* istream *********************************
309
310
311	#define ISTYPE_VOID( T ) void ?\|?( istype &, T )
312	#define ISTYPE_VOID_IMPL( T ) \
313	void ?\|?( istype & is, T t ) { \
314	(istype &)(is \| t); ends( is ); \
315	} // ?\|?
316
317	forall( istype & )
318	trait basic_istream {
319	// private
320	bool getANL$( istype & ); // get scan newline (on/off)
321	bool setANL$( istype &, bool ); // set scan newline (on/off)
322	// public
323	void nlOn( istype & ); // read newline
324	void nlOff( istype & ); // scan newline
325	void ends( istype & os ); // end of output statement
326	int fmt( istype &, const char format[], ... ) __attribute__(( format(scanf, 2, 3) ));
327	istype & ungetc( istype &, char );
328	bool eof( istype & );
329	}; // basic_istream
330
331	forall( istype & \| basic_istream( istype ) )
332	trait istream {
333	bool fail( istype & );
334	void clear( istype & );
335	void open( istype & is, const char name[] );
336	void close( istype & is );
337	istype & read( istype &, char [], size_t );
338	}; // istream
339
340	forall( T )
341	trait readable {
342	forall( istype & \| istream( istype ) ) istype & ?\|?( istype &, T );
343	}; // readable
344
345	forall( istype & \| basic_istream( istype ) ) {
346	istype & ?\|?( istype &, bool & );
347	ISTYPE_VOID( bool & );
348
349	istype & ?\|?( istype &, char & );
350	ISTYPE_VOID( char & );
351	istype & ?\|?( istype &, signed char & );
352	ISTYPE_VOID( signed char & );
353	istype & ?\|?( istype &, unsigned char & );
354	ISTYPE_VOID( unsigned char & );
355
356	istype & ?\|?( istype &, short int & );
357	ISTYPE_VOID( short int & );
358	istype & ?\|?( istype &, unsigned short int & );
359	ISTYPE_VOID( unsigned short int & );
360	istype & ?\|?( istype &, int & );
361	ISTYPE_VOID( int & );
362	istype & ?\|?( istype &, unsigned int & );
363	ISTYPE_VOID( unsigned int & );
364	istype & ?\|?( istype &, long int & );
365	ISTYPE_VOID( long int & );
366	istype & ?\|?( istype &, unsigned long int & );
367	ISTYPE_VOID( unsigned long int & );
368	istype & ?\|?( istype &, long long int & );
369	ISTYPE_VOID( long long int & );
370	istype & ?\|?( istype &, unsigned long long int & );
371	ISTYPE_VOID( unsigned long long int & );
372	#if defined( __SIZEOF_INT128__ )
373	istype & ?\|?( istype &, int128 & );
374	ISTYPE_VOID( int128 & );
375	istype & ?\|?( istype &, unsigned int128 & );
376	ISTYPE_VOID( unsigned int128 & );
377	#endif // __SIZEOF_INT128__
378
379	istype & ?\|?( istype &, float & );
380	ISTYPE_VOID( float & );
381	istype & ?\|?( istype &, double & );
382	ISTYPE_VOID( double & );
383	istype & ?\|?( istype &, long double & );
384	ISTYPE_VOID( long double & );
385
386	istype & ?\|?( istype &, float _Complex & );
387	ISTYPE_VOID( float _Complex & );
388	istype & ?\|?( istype &, double _Complex & );
389	ISTYPE_VOID( double _Complex & );
390	istype & ?\|?( istype &, long double _Complex & );
391	ISTYPE_VOID( long double _Complex & );
392
393	// istype & ?\|?( istype &, const char [] );
394	// istype & ?\|?( istype &, char [] );
395	// ISTYPE_VOID( char [] );
396
397	// manipulators
398	istype & ?\|?( istype &, istype & (*)( istype & ) );
399	ISTYPE_VOID( istype & (*)( istype & ) );
400	istype & nl( istype & is );
401	istype & nlOn( istype & );
402	istype & nlOff( istype & );
403	} // distribution
404
405
406	// ********************************* exceptions *********************************
407
408
409	ExceptionDecl( cstring_length );
410
411
412	// ********************************* manipulators *********************************
413
414	struct _Istream_Cstr {
415	char * s;
416	union {
417	const char * scanset;
418	char delimit;
419	};
420	int wd; // width
421	union {
422	unsigned char all;
423	struct {
424	unsigned char ignore:1; // do not change input argument
425	unsigned char inex:1; // include/exclude characters in scanset
426	unsigned char delimit:1; // delimit character
427	unsigned char rwd:1; // read width
428	} flags;
429	};
430	}; // _Istream_Cstr
431
432	static inline {
433	// width must include room for null terminator
434	_Istream_Cstr wdi( unsigned int wd, char s[] ) { return (_Istream_Cstr)@{ s, {0p}, wd, {.all : 0} }; }
435	// read width does not include null terminator
436	_Istream_Cstr wdi( unsigned int wd, unsigned int rwd, char s[] ) {
437	if ( wd <= rwd ) throw (cstring_length){ &cstring_length_vt };
438	return (_Istream_Cstr)@{ s, {0p}, rwd, {.flags.rwd : true} };
439	}
440	_Istream_Cstr skip( const char scanset[] ) { return (_Istream_Cstr){ 0p, {scanset}, -1, {.all : 0} }; }
441	_Istream_Cstr skip( unsigned int wd ) { return (_Istream_Cstr){ 0p, {0p}, wd, {.all : 0} }; }
442	_Istream_Cstr & getline( _Istream_Cstr & fmt, const char delimit = '\n' ) { fmt.delimit = delimit; fmt.flags.delimit = true; return fmt; }
443	_Istream_Cstr & incl( const char scanset[], _Istream_Cstr & fmt ) { fmt.scanset = scanset; fmt.flags.inex = false; return fmt; }
444	_Istream_Cstr & excl( const char scanset[], _Istream_Cstr & fmt ) { fmt.scanset = scanset; fmt.flags.inex = true; return fmt; }
445	_Istream_Cstr ignore( char s[] ) { return (_Istream_Cstr)@{ s, {0p}, -1, {.flags.ignore : true} }; }
446	_Istream_Cstr & ignore( _Istream_Cstr & fmt ) { fmt.flags.ignore = true; return fmt; }
447	} // distribution
448	forall( istype & \| basic_istream( istype ) ) {
449	istype & ?\|?( istype & is, _Istream_Cstr f );
450	ISTYPE_VOID( _Istream_Cstr );
451	}
452
453	struct _Istream_Char {
454	bool ignore; // do not change input argument
455	}; // _Istream_Char
456
457	static inline {
458	_Istream_Char ignore( const char ) { return (_Istream_Char)@{ true }; }
459	_Istream_Char & ignore( _Istream_Char & fmt ) { fmt.ignore = true; return fmt; }
460	} // distribution
461	forall( istype & \| basic_istream( istype ) ) {
462	istype & ?\|?( istype & is, _Istream_Char f );
463	ISTYPE_VOID( _Istream_Char );
464	}
465
466	forall( T & \| sized( T ) )
467	struct _Istream_Manip {
468	T & val; // polymorphic base-type
469	int wd; // width
470	bool ignore; // do not change input argument
471	}; // _Istream_Manip
472
473	#define INPUT_FMT_DECL( T ) \
474	static inline { \
475	_Istream_Manip(T) ignore( const T & val ) { return (_Istream_Manip(T))@{ (T &)val, -1, true }; } \
476	_Istream_Manip(T) & ignore( _Istream_Manip(T) & fmt ) { fmt.ignore = true; return fmt; } \
477	_Istream_Manip(T) wdi( unsigned int wd, T & val ) { return (_Istream_Manip(T))@{ val, wd, false }; } \
478	_Istream_Manip(T) & wdi( unsigned int wd, _Istream_Manip(T) & fmt ) { fmt.wd = wd; return fmt; } \
479	} /* distribution */ \
480	forall( istype & \| basic_istream( istype ) ) { \
481	istype & ?\|?( istype & is, _Istream_Manip(T) f ); \
482	ISTYPE_VOID( _Istream_Manip(T) ); \
483	} // ?\|?
484
485	INPUT_FMT_DECL( signed char )
486	INPUT_FMT_DECL( unsigned char )
487	INPUT_FMT_DECL( signed short int )
488	INPUT_FMT_DECL( unsigned short int )
489	INPUT_FMT_DECL( signed int )
490	INPUT_FMT_DECL( unsigned int )
491	INPUT_FMT_DECL( signed long int )
492	INPUT_FMT_DECL( unsigned long int )
493	INPUT_FMT_DECL( signed long long int )
494	INPUT_FMT_DECL( unsigned long long int )
495
496	INPUT_FMT_DECL( float )
497	INPUT_FMT_DECL( double )
498	INPUT_FMT_DECL( long double )
499
500	INPUT_FMT_DECL( float _Complex )
501	INPUT_FMT_DECL( double _Complex )
502	INPUT_FMT_DECL( long double _Complex )
503
504
505	// ********************************* time *********************************
506
507
508	#include <time_t.hfa> // Duration (constructors) / Time (constructors)
509
510	forall( ostype & \| ostream( ostype ) ) {
511	ostype & ?\|?( ostype & os, Duration dur );
512	OSTYPE_VOID( Duration );
513	ostype & ?\|?( ostype & os, Time time );
514	OSTYPE_VOID( Time );
515	} // distribution
516
517	// Local Variables: //
518	// tab-width: 4 //
519	// End: //

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