source: libcfa/src/iostream.hfa@ e8b3717

Last change on this file since e8b3717 was 4aae2bd, checked in by Peter A. Buhr <pabuhr@…>, 21 months ago

continue to work on quoted formatting and generalization
  • Property mode set to 100644
File size: 21.3 KB
Line 
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
23forall( ostype & )
24trait 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
54forall( ostype & | basic_ostream( ostype ) )
55trait 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
69forall( T, ostype & | ostream( ostype ) )
70trait 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
82forall( 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
162forall( 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
168forall( 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
175struct _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
185forall( T )
186struct _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 ) \
203static 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 */ \
218forall( ostype & | basic_ostream( ostype ) ) { \
219 ostype & ?|?( ostype & os, _Ostream_Manip(T) f ); \
220 OSTYPE_VOID( _Ostream_Manip(T) ); \
221} // ?|?
222
223INTEGRAL_FMT_DECL( signed char, 'd' )
224INTEGRAL_FMT_DECL( unsigned char, 'u' )
225INTEGRAL_FMT_DECL( signed short int, 'd' )
226INTEGRAL_FMT_DECL( unsigned short int, 'u' )
227INTEGRAL_FMT_DECL( signed int, 'd' )
228INTEGRAL_FMT_DECL( unsigned int, 'u' )
229INTEGRAL_FMT_DECL( signed long int, 'd' )
230INTEGRAL_FMT_DECL( unsigned long int, 'u' )
231INTEGRAL_FMT_DECL( signed long long int, 'd' )
232INTEGRAL_FMT_DECL( unsigned long long int, 'u' )
233#if defined( __SIZEOF_INT128__ )
234INTEGRAL_FMT_DECL( int128, 'd' )
235INTEGRAL_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 ) \
242static 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 */ \
263forall( ostype & | basic_ostream( ostype ) ) { \
264 ostype & ?|?( ostype & os, _Ostream_Manip(T) f ); \
265 OSTYPE_VOID( _Ostream_Manip(T) ); \
266} // ?|?
267
268FLOATING_POINT_FMT_DECL( double )
269FLOATING_POINT_FMT_DECL( long double )
270
271// *********************************** character ***********************************
272
273static 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
283forall( ostype & | basic_ostream( ostype ) ) {
284 ostype & ?|?( ostype & os, _Ostream_Manip(char) f );
285 OSTYPE_VOID( _Ostream_Manip(char) ); \
286} // ?|?
287
288// *********************************** C string ***********************************
289
290static 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
301forall( 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
308forall( istype & )
309trait 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
322forall( istype & | basic_istream( istype ) )
323trait 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
331forall( T )
332trait readable {
333 forall( istype & | istream( istype ) ) istype & ?|?( istype &, T );
334}; // readable
335
336forall( 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
375ExceptionDecl( cstring_length );
376ExceptionDecl( missing_data );
377
378// *********************************** manipulators ***********************************
379
380// skip does not compose with other C string manipulators.
381struct _Istream_Cskip {
382 const char * scanset;
383 unsigned wd; // scan width
384}; // _Istream_Cskip
385
386static 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
391struct _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
408struct _Istream_Cstr {
409 char * s;
410 inline _Istream_str_base;
411}; // _Istream_Cstr
412
413struct _Istream_Cquoted {
414 _Istream_Cstr cstr;
415}; // _Istream_Cquoted
416
417static 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
437forall( 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
443struct _Istream_Char {
444 bool ignore; // do not change input argument
445}; // _Istream_Char
446
447static 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
451forall( istype & | basic_istream( istype ) ) {
452 istype & ?|?( istype & is, _Istream_Char f );
453}
454
455forall( T & | sized( T ) )
456struct _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 ) \
463static 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 */ \
469forall( istype & | basic_istream( istype ) ) { \
470 istype & ?|?( istype & is, _Istream_Manip(T) f ); \
471} // ?|?
472
473INPUT_FMT_DECL( signed char )
474INPUT_FMT_DECL( unsigned char )
475INPUT_FMT_DECL( signed short int )
476INPUT_FMT_DECL( unsigned short int )
477INPUT_FMT_DECL( signed int )
478INPUT_FMT_DECL( unsigned int )
479INPUT_FMT_DECL( signed long int )
480INPUT_FMT_DECL( unsigned long int )
481INPUT_FMT_DECL( signed long long int )
482INPUT_FMT_DECL( unsigned long long int )
483
484INPUT_FMT_DECL( float )
485INPUT_FMT_DECL( double )
486INPUT_FMT_DECL( long double )
487
488INPUT_FMT_DECL( float _Complex )
489INPUT_FMT_DECL( double _Complex )
490INPUT_FMT_DECL( long double _Complex )
491
492// *********************************** time ***********************************
493
494#include <time_t.hfa> // Duration (constructors) / Time (constructors)
495
496forall( 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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