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iostream.cfa@ a33c113

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ADT arm-eh ast-experimental enum forall-pointer-decay jacob/cs343-translation new-ast-unique-expr pthread-emulation qualifiedEnum

Last change on this file since a33c113 was fd4c009, checked in by Peter A. Buhr <pabuhr@…>, 4 years ago
fix incorrectly decimal-point printing, add engineering-notation manipulator
Property mode set to `100644`
File size: 38.7 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.cfa --
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 : Tue Apr 13 13:05:24 2021
13	// Update Count : 1324
14	//
15
16	#include "iostream.hfa"
17
18	#include <stdio.h>
19	#include <stdbool.h> // true/false
20	#include <stdint.h> // UINT64_MAX
21	#include <float.h> // DBL_DIG, LDBL_DIG
22	#include <complex.h> // creal, cimag
23	//#include <string.h> // strlen, strcmp, memcpy
24	extern "C" {
25	extern size_t strlen (const char *__s) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));
26	extern int strcmp (const char __s1, const char __s2) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));
27	extern char strcpy (char __restrict __dest, const char *__restrict __src) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
28	extern void memcpy (void __restrict __dest, const void *__restrict __src, size_t __n) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
29	} // extern "C"
30
31	#include "math.hfa" // isfinite, floor, ceiling_div
32	#include "bitmanip.hfa" // high1
33
34
35	// ********************************* ostream *********************************
36
37
38	forall( ostype & \| ostream( ostype ) ) {
39	ostype & ?\|?( ostype & os, bool b ) {
40	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
41	fmt( os, "%s", b ? "true" : "false" );
42	return os;
43	} // ?\|?
44	void ?\|?( ostype & os, bool b ) {
45	(ostype &)(os \| b); ends( os );
46	} // ?\|?
47
48	ostype & ?\|?( ostype & os, char c ) {
49	fmt( os, "%c", c );
50	if ( c == '\n' ) $setNL( os, true );
51	return sepOff( os );
52	} // ?\|?
53	void ?\|?( ostype & os, char c ) {
54	(ostype &)(os \| c); ends( os );
55	} // ?\|?
56
57	ostype & ?\|?( ostype & os, signed char sc ) {
58	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
59	fmt( os, "%hhd", sc );
60	return os;
61	} // ?\|?
62	void ?\|?( ostype & os, signed char sc ) {
63	(ostype &)(os \| sc); ends( os );
64	} // ?\|?
65
66	ostype & ?\|?( ostype & os, unsigned char usc ) {
67	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
68	fmt( os, "%hhu", usc );
69	return os;
70	} // ?\|?
71	void ?\|?( ostype & os, unsigned char usc ) {
72	(ostype &)(os \| usc); ends( os );
73	} // ?\|?
74
75	ostype & ?\|?( ostype & os, short int si ) {
76	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
77	fmt( os, "%hd", si );
78	return os;
79	} // ?\|?
80	void & ?\|?( ostype & os, short int si ) {
81	(ostype &)(os \| si); ends( os );
82	} // ?\|?
83
84	ostype & ?\|?( ostype & os, unsigned short int usi ) {
85	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
86	fmt( os, "%hu", usi );
87	return os;
88	} // ?\|?
89	void & ?\|?( ostype & os, unsigned short int usi ) {
90	(ostype &)(os \| usi); ends( os );
91	} // ?\|?
92
93	ostype & ?\|?( ostype & os, int i ) {
94	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
95	fmt( os, "%d", i );
96	return os;
97	} // ?\|?
98	void & ?\|?( ostype & os, int i ) {
99	(ostype &)(os \| i); ends( os );
100	} // ?\|?
101
102	ostype & ?\|?( ostype & os, unsigned int ui ) {
103	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
104	fmt( os, "%u", ui );
105	return os;
106	} // ?\|?
107	void & ?\|?( ostype & os, unsigned int ui ) {
108	(ostype &)(os \| ui); ends( os );
109	} // ?\|?
110
111	ostype & ?\|?( ostype & os, long int li ) {
112	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
113	fmt( os, "%ld", li );
114	return os;
115	} // ?\|?
116	void & ?\|?( ostype & os, long int li ) {
117	(ostype &)(os \| li); ends( os );
118	} // ?\|?
119
120	ostype & ?\|?( ostype & os, unsigned long int uli ) {
121	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
122	fmt( os, "%lu", uli );
123	return os;
124	} // ?\|?
125	void & ?\|?( ostype & os, unsigned long int uli ) {
126	(ostype &)(os \| uli); ends( os );
127	} // ?\|?
128
129	ostype & ?\|?( ostype & os, long long int lli ) {
130	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
131	fmt( os, "%lld", lli );
132	return os;
133	} // ?\|?
134	void & ?\|?( ostype & os, long long int lli ) {
135	(ostype &)(os \| lli); ends( os );
136	} // ?\|?
137
138	ostype & ?\|?( ostype & os, unsigned long long int ulli ) {
139	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
140	fmt( os, "%llu", ulli );
141	return os;
142	} // ?\|?
143	void & ?\|?( ostype & os, unsigned long long int ulli ) {
144	(ostype &)(os \| ulli); ends( os );
145	} // ?\|?
146
147	#if defined( __SIZEOF_INT128__ )
148	// UINT64_MAX 18_446_744_073_709_551_615_ULL
149	#define P10_UINT64 10_000_000_000_000_000_000_ULL // 19 zeroes
150
151	static inline void base10_128( ostype & os, unsigned int128 val ) {
152	#if defined(__GNUC__) && __GNUC_PREREQ(7,0) // gcc version >= 7
153	if ( val > P10_UINT64 ) {
154	#else
155	if ( (uint64_t)(val >> 64) != 0 \|\| (uint64_t)val > P10_UINT64 ) { // patch gcc 5 & 6 -O3 bug
156	#endif // __GNUC_PREREQ(7,0)
157	base10_128( os, val / P10_UINT64 ); // recursive
158	fmt( os, "%.19lu", (uint64_t)(val % P10_UINT64) );
159	} else {
160	fmt( os, "%lu", (uint64_t)val );
161	} // if
162	} // base10_128
163
164	static inline void base10_128( ostype & os, int128 val ) {
165	if ( val < 0 ) {
166	fmt( os, "-" ); // leading negative sign
167	val = -val;
168	} // if
169	base10_128( os, (unsigned int128)val ); // print zero/positive value
170	} // base10_128
171
172	ostype & ?\|?( ostype & os, int128 llli ) {
173	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
174	base10_128( os, llli );
175	return os;
176	} // ?\|?
177	void & ?\|?( ostype & os, int128 llli ) {
178	(ostype &)(os \| llli); ends( os );
179	} // ?\|?
180
181	ostype & ?\|?( ostype & os, unsigned int128 ullli ) {
182	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
183	base10_128( os, ullli );
184	return os;
185	} // ?\|?
186	void & ?\|?( ostype & os, unsigned int128 ullli ) {
187	(ostype &)(os \| ullli); ends( os );
188	} // ?\|?
189	#endif // __SIZEOF_INT128__
190
191	#define PrintWithDP( os, format, val, ... ) \
192	{ \
193	enum { size = 48 }; \
194	char buf[size]; \
195	int len = snprintf( buf, size, format, ##__VA_ARGS__, val ); \
196	fmt( os, "%s", buf ); \
197	if ( isfinite( val ) ) { /* if number, print decimal point when no fraction or exponent */ \
198	for ( int i = 0;; i += 1 ) { \
199	if ( i == len ) { fmt( os, "." ); break; } \
200	if ( buf[i] == '.' \|\| buf[i] == 'e' \|\| buf[i] == 'E' ) break; /* decimal point or scientific ? */ \
201	} /* for */ \
202	} /* if */ \
203	}
204
205	ostype & ?\|?( ostype & os, float f ) {
206	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
207	PrintWithDP( os, "%g", f );
208	return os;
209	} // ?\|?
210	void & ?\|?( ostype & os, float f ) {
211	(ostype &)(os \| f); ends( os );
212	} // ?\|?
213
214	ostype & ?\|?( ostype & os, double d ) {
215	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
216	PrintWithDP( os, "%.*lg", d, DBL_DIG );
217	return os;
218	} // ?\|?
219	void & ?\|?( ostype & os, double d ) {
220	(ostype &)(os \| d); ends( os );
221	} // ?\|?
222
223	ostype & ?\|?( ostype & os, long double ld ) {
224	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
225	PrintWithDP( os, "%.*Lg", ld, LDBL_DIG );
226	return os;
227	} // ?\|?
228	void & ?\|?( ostype & os, long double ld ) {
229	(ostype &)(os \| ld); ends( os );
230	} // ?\|?
231
232	ostype & ?\|?( ostype & os, float _Complex fc ) {
233	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
234	// os \| crealf( fc ) \| nonl;
235	PrintWithDP( os, "%g", crealf( fc ) );
236	PrintWithDP( os, "%+g", cimagf( fc ) );
237	fmt( os, "i" );
238	return os;
239	} // ?\|?
240	void & ?\|?( ostype & os, float _Complex fc ) {
241	(ostype &)(os \| fc); ends( os );
242	} // ?\|?
243
244	ostype & ?\|?( ostype & os, double _Complex dc ) {
245	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
246	// os \| creal( dc ) \| nonl;
247	PrintWithDP( os, "%.*lg", creal( dc ), DBL_DIG );
248	PrintWithDP( os, "%+.*lg", cimag( dc ), DBL_DIG );
249	fmt( os, "i" );
250	return os;
251	} // ?\|?
252	void & ?\|?( ostype & os, double _Complex dc ) {
253	(ostype &)(os \| dc); ends( os );
254	} // ?\|?
255
256	ostype & ?\|?( ostype & os, long double _Complex ldc ) {
257	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
258	// os \| creall( ldc ) \|\| nonl;
259	PrintWithDP( os, "%.*Lg", creall( ldc ), LDBL_DIG );
260	PrintWithDP( os, "%+.*Lg", cimagl( ldc ), LDBL_DIG );
261	fmt( os, "i" );
262	return os;
263	} // ?\|?
264	void & ?\|?( ostype & os, long double _Complex ldc ) {
265	(ostype &)(os \| ldc); ends( os );
266	} // ?\|?
267
268	ostype & ?\|?( ostype & os, const char s[] ) {
269	enum { Open = 1, Close, OpenClose };
270	static const unsigned char mask[256] @= {
271	// opening delimiters, no space after
272	['('] : Open, ['['] : Open, ['{'] : Open,
273	['='] : Open, ['$'] : Open, [(unsigned char)'£'] : Open, [(unsigned char)'¥'] : Open,
274	[(unsigned char)'¡'] : Open, [(unsigned char)'¿'] : Open, [(unsigned char)'«'] : Open,
275	// closing delimiters, no space before
276	[','] : Close, ['.'] : Close, [';'] : Close, ['!'] : Close, ['?'] : Close,
277	['%'] : Close, [(unsigned char)'¢'] : Close, [(unsigned char)'»'] : Close,
278	[')'] : Close, [']'] : Close, ['}'] : Close,
279	// opening-closing delimiters, no space before or after
280	['\''] : OpenClose, ['`'] : OpenClose, ['"'] : OpenClose, [':'] : OpenClose,
281	[' '] : OpenClose, ['\f'] : OpenClose, ['\n'] : OpenClose, ['\r'] : OpenClose, ['\t'] : OpenClose, ['\v'] : OpenClose, // isspace
282	}; // mask
283
284	if ( s[0] == '\0' ) { sepOff( os ); return os; } // null string => no separator
285
286	// first character IS NOT spacing or closing punctuation => add left separator
287	unsigned char ch = s[0]; // must make unsigned
288	if ( $sepPrt( os ) && mask[ ch ] != Close && mask[ ch ] != OpenClose ) {
289	fmt( os, "%s", $sepGetCur( os ) );
290	} // if
291
292	// if string starts line, must reset to determine open state because separator is off
293	$sepReset( os ); // reset separator
294
295	// last character IS spacing or opening punctuation => turn off separator for next item
296	size_t len = strlen( s );
297	ch = s[len - 1]; // must make unsigned
298	if ( $sepPrt( os ) && mask[ ch ] != Open && mask[ ch ] != OpenClose ) {
299	sepOn( os );
300	} else {
301	sepOff( os );
302	} // if
303	if ( ch == '\n' ) $setNL( os, true ); // check AFTER $sepPrt call above as it resets NL flag
304	return write( os, s, len );
305	} // ?\|?
306	void ?\|?( ostype & os, const char s[] ) {
307	(ostype &)(os \| s); ends( os );
308	} // ?\|?
309
310	// ostype & ?\|?( ostype & os, const char16_t * s ) {
311	// if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
312	// fmt( os, "%ls", s );
313	// return os;
314	// } // ?\|?
315
316	// #if ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 ) // char32_t == wchar_t => ambiguous
317	// ostype & ?\|?( ostype & os, const char32_t * s ) {
318	// if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
319	// fmt( os, "%ls", s );
320	// return os;
321	// } // ?\|?
322	// #endif // ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 )
323
324	// ostype & ?\|?( ostype & os, const wchar_t * s ) {
325	// if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
326	// fmt( os, "%ls", s );
327	// return os;
328	// } // ?\|?
329
330	ostype & ?\|?( ostype & os, const void * p ) {
331	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
332	fmt( os, "%p", p );
333	return os;
334	} // ?\|?
335	void ?\|?( ostype & os, const void * p ) {
336	(ostype &)(os \| p); ends( os );
337	} // ?\|?
338
339	// manipulators
340	ostype & ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) {
341	return manip( os );
342	} // ?\|?
343	void ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) {
344	manip( os );
345	if ( $getPrt( os ) ) ends( os ); // something printed ?
346	$setPrt( os, false ); // turn off
347	} // ?\|?
348
349	ostype & sep( ostype & os ) {
350	return (ostype &)(os \| sepGet( os ));
351	} // sep
352
353	ostype & sepTuple( ostype & os ) {
354	return os \| sepGetTuple( os );
355	} // sepTuple
356
357	ostype & nl( ostype & os ) {
358	(ostype &)(os \| '\n');
359	$setPrt( os, false ); // turn off
360	$setNL( os, true );
361	flush( os );
362	return sepOff( os ); // prepare for next line
363	} // nl
364
365	ostype & nonl( ostype & os ) {
366	$setPrt( os, false ); // turn off
367	return os;
368	} // nonl
369
370	ostype & sepOn( ostype & os ) {
371	sepOn( os ); // call void returning
372	return os;
373	} // sepOn
374
375	ostype & sepOff( ostype & os ) {
376	sepOff( os ); // call void returning
377	return os;
378	} // sepOff
379
380	ostype & sepEnable( ostype & os ) {
381	sepEnable( os ); // call void returning
382	return os;
383	} // sepEnable
384
385	ostype & sepDisable( ostype & os ) {
386	sepDisable( os ); // call void returning
387	return os;
388	} // sepDisable
389
390	ostype & nlOn( ostype & os ) {
391	nlOn( os ); // call void returning
392	return os;
393	} // nlOn
394
395	ostype & nlOff( ostype & os ) {
396	nlOff( os ); // call void returning
397	return os;
398	} // nlOff
399
400	ostype & acquire( ostype & os ) {
401	acquire( os ); // call void returning
402	return os;
403	} // acquire
404	} // distribution
405
406	// tuples
407	forall( ostype &, T, Params... \| writeable( T, ostype ) \| { ostype & ?\|?( ostype &, Params ); } ) {
408	ostype & ?\|?( ostype & os, T arg, Params rest ) {
409	(ostype &)(os \| arg); // print first argument
410	$sepSetCur( os, sepGetTuple( os ) ); // switch to tuple separator
411	(ostype &)(os \| rest); // print remaining arguments
412	$sepSetCur( os, sepGet( os ) ); // switch to regular separator
413	return os;
414	} // ?\|?
415	void ?\|?( ostype & os, T arg, Params rest ) {
416	// (ostype &)(?\|?( os, arg, rest )); ends( os );
417	(ostype &)(os \| arg); // print first argument
418	$sepSetCur( os, sepGetTuple( os ) ); // switch to tuple separator
419	(ostype &)(os \| rest); // print remaining arguments
420	$sepSetCur( os, sepGet( os ) ); // switch to regular separator
421	ends( os );
422	} // ?\|?
423	} // distribution
424
425	// writes the range [begin, end) to the given stream
426	forall( ostype &, elt_type \| writeable( elt_type, ostype ), iterator_type \| iterator( iterator_type, elt_type ) ) {
427	void write( iterator_type begin, iterator_type end, ostype & os ) {
428	void print( elt_type i ) { os \| i; }
429	for_each( begin, end, print );
430	} // ?\|?
431
432	void write_reverse( iterator_type begin, iterator_type end, ostype & os ) {
433	void print( elt_type i ) { os \| i; }
434	for_each_reverse( begin, end, print );
435	} // ?\|?
436	} // distribution
437
438	// ********************************* manipulators *********************************
439
440	// ********************************* integral *********************************
441
442	static const char * shortbin[] = { "0", "1", "10", "11", "100", "101", "110", "111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
443	static const char * longbin[] = { "0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
444
445	// Default prefix for non-decimal prints is 0b, 0, 0x.
446	#define IntegralFMTImpl( T, IFMTNP, IFMTP ) \
447	forall( ostype & \| ostream( ostype ) ) { \
448	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
449	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) ); \
450	\
451	if ( f.base == 'b' \|\| f.base == 'B' ) { /* bespoke binary format */ \
452	int bits = high1( f.val ); /* position of most significant bit */ \
453	if ( bits == 0 ) bits = 1; /* 0 value => force one bit to print */ \
454	int spaces; \
455	if ( ! f.flags.left ) { /* right justified ? */ \
456	/* Note, base prefix then zero padding or spacing then prefix. */ \
457	if ( f.flags.pc ) { \
458	spaces = f.wd - f.pc; \
459	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
460	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
461	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
462	spaces = f.pc - bits; \
463	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
464	} else { \
465	spaces = f.wd - bits; \
466	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
467	if ( f.flags.pad0 ) { \
468	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
469	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
470	} else { \
471	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
472	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
473	} /* if */ \
474	} /* if */ \
475	} else { \
476	if ( ! f.flags.nobsdp ) fmt( os, "0%c", f.base ); \
477	if ( f.flags.pc ) { \
478	spaces = f.pc - bits; \
479	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
480	spaces = f.wd - f.pc; \
481	} else { /* pad0 flag ignored with left flag */ \
482	spaces = f.wd - bits; \
483	} /* if */ \
484	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
485	} /* if */ \
486	int shift = floor( bits - 1, 4 ); \
487	typeof( f.val ) temp = f.val; \
488	fmt( os, "%s", shortbin[(temp >> shift) & 0xf] ); \
489	for () { \
490	shift -= 4; \
491	if ( shift < 0 ) break; \
492	temp = f.val; \
493	fmt( os, "%s", longbin[(temp >> shift) & 0xf] ); \
494	} /* for */ \
495	if ( f.flags.left && spaces > 0 ) fmt( os, "%*s", spaces, " " ); \
496	return os; \
497	} /* if */ \
498	\
499	char fmtstr[sizeof(IFMTP)]; /* sizeof includes '\0' */ \
500	if ( ! f.flags.pc ) memcpy( &fmtstr, IFMTNP, sizeof(IFMTNP) ); \
501	else memcpy( &fmtstr, IFMTP, sizeof(IFMTP) ); \
502	int star = 4; /* position before first '' / \
503	\
504	/* Insert flags into spaces before '', from right to left. / \
505	if ( ! f.flags.nobsdp ) { fmtstr[star] = '#'; star -= 1; } \
506	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
507	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
508	if ( f.flags.pad0 && ! f.flags.pc ) { fmtstr[star] = '0'; star -= 1; } \
509	fmtstr[star] = '%'; \
510	\
511	if ( ! f.flags.pc ) { /* no precision */ \
512	fmtstr[sizeof(IFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
513	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
514	fmt( os, &fmtstr[star], f.wd, f.val ); \
515	} else { /* precision */ \
516	fmtstr[sizeof(IFMTP)-2] = f.base; /* sizeof includes '\0' */ \
517	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
518	fmt( os, &fmtstr[star], f.wd, f.pc, f.val ); \
519	} /* if */ \
520	return os; \
521	} /* ?\|? */ \
522	void ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
523	(ostype &)(os \| f); ends( os ); \
524	} /* ?\|? */ \
525	} // distribution
526
527	IntegralFMTImpl( signed char, " hh ", " .*hh " )
528	IntegralFMTImpl( unsigned char, " hh ", " .*hh " )
529	IntegralFMTImpl( signed short int, " h ", " .*h " )
530	IntegralFMTImpl( unsigned short int, " h ", " .*h " )
531	IntegralFMTImpl( signed int, " * ", " . " )
532	IntegralFMTImpl( unsigned int, " * ", " . " )
533	IntegralFMTImpl( signed long int, " l ", " .*l " )
534	IntegralFMTImpl( unsigned long int, " l ", " .*l " )
535	IntegralFMTImpl( signed long long int, " ll ", " .*ll " )
536	IntegralFMTImpl( unsigned long long int, " ll ", " .*ll " )
537
538
539	#if defined( __SIZEOF_INT128__ )
540	// Default prefix for non-decimal prints is 0b, 0, 0x.
541	forall( ostype & \| ostream( ostype ) )
542	static inline void base_128( ostype & os, unsigned int128 val, unsigned int128 power, _Ostream_Manip(uint64_t) & f, unsigned int maxdig, unsigned int bits, unsigned int cnt = 0 ) {
543	int wd = 1; // f.wd is never 0 because 0 implies left-pad
544	if ( val > power ) { // subdivide value into printable 64-bit values
545	base_128( os, val / power, power, f, maxdig, bits, cnt + 1 ); // recursive
546	f.val = val % power;
547	if ( cnt == 1 && f.flags.left ) { wd = f.wd; f.wd = maxdig; } // copy f.wd and reset for printing middle chunk
548	// printf( "R val:%#lx(%lu) wd:%u pc:%u base:%c neg:%d pc:%d left:%d nobsdp:%d sign:%d pad0:%d\n",
549	// f.val, f.val, f.wd, f.pc, f.base, f.flags.neg, f.flags.pc, f.flags.left, f.flags.nobsdp, f.flags.sign, f.flags.pad0 );
550	(ostype &)(os \| f);
551	if ( cnt == 1 ) {
552	if ( f.flags.left ) { wd -= maxdig; f.wd = wd < 0 ? 1 : wd; } // update and restore f.wd for printing end chunk
553	sepOff( os ); // no seperator between chunks
554	} // if
555	} else { // print start chunk
556	f.val = val;
557	// f.pc is unsigned => use wd
558	if ( f.flags.pc && f.pc > maxdig * cnt ) { wd = f.pc - maxdig * cnt; f.pc = wd < 0 ? 0 : wd; }
559	else { f.flags.pc = false; f.pc = 0; }
560
561	if ( ! f.flags.left ) { // right justify
562	wd = f.wd - maxdig * cnt;
563	f.wd = wd < 0 ? 1 : wd;
564	wd = maxdig;
565	} else { // left justify
566	if ( cnt != 0 ) { // value >= 2^64 ?
567	unsigned int dig, bs = 0;
568	// compute size of prefix digits and base
569	if ( f.base == 'd' \|\| f.base == 'u' ) { // no base prefix
570	dig = ceil( log10( f.val ) ); // use floating-point
571	if ( f.base == 'd' && (f.flags.neg \|\| f.flags.sign) ) bs = 1; // sign ?
572	} else {
573	dig = ceiling_div( high1( f.val ), bits );
574	if ( ! f.flags.nobsdp ) { // base prefix ?
575	if ( f.base == 'o' ) {
576	// 0 prefix for octal is not added for precision with leading zero
577	if ( f.pc <= dig ) bs = 1; // 1 character prefix
578	} else bs = 2; // 2 character prefix
579	} // if
580	} // if
581	wd = f.wd - (f.pc > dig ? f.pc : dig) - bs; // precision > leading digits ?
582	if ( wd < 0 ) wd = 1;
583	f.wd = 1;
584	} // if
585	// all manipulators handled implicitly for value < 2^64
586	} // if
587	// prior checks ensure wd not negative
588
589	if ( f.flags.neg ) f.val = -f.val;
590	// printf( "L val:%#lx(%lu) wd:%u pc:%u base:%c neg:%d pc:%d left:%d nobsdp:%d sign:%d pad0:%d\n",
591	// f.val, f.val, f.wd, f.pc, f.base, f.flags.neg, f.flags.pc, f.flags.left, f.flags.nobsdp, f.flags.sign, f.flags.pad0 );
592	(ostype &)(os \| f);
593
594	// remaining middle and end chunks are padded with 0s on the left
595	if ( ! f.flags.left ) { f.flags.pad0 = true; f.flags.pc = false; } // left pad with 0s
596	else { f.pc = maxdig; f.flags.pc = true; } // left pad with precision
597
598	if ( cnt != 0 ) sepOff( os ); // no seperator between chunks
599	f.wd = wd; // reset f.wd for next chunk
600	f.flags.sign = false; // no leading +/- sign
601	f.flags.nobsdp = true; // no leading base prefix
602	} // if
603	} // base_128
604
605	#define IntegralFMTImpl128( T ) \
606	forall( ostype & \| ostream( ostype ) ) { \
607	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
608	_Ostream_Manip(uint64_t) fmt; \
609	fmt.[wd, pc, base, all] = f.[wd, pc, base, all]; \
610	if ( f.base == 'b' \| f.base == 'B' ) { \
611	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 64, 1 ); \
612	} else if ( f.base == 'o' ) { \
613	base_128( os, f.val, (unsigned int128)1 << 63, fmt, 21, 3 ); \
614	} else if ( f.base == 'd' \|\| f.base == 'u' ) { \
615	if ( f.base == 'd' && f.val < 0 ) { f.val = -f.val; fmt.flags.neg = true; } \
616	base_128( os, f.val, (unsigned int128)10_000_000_000_000_000_000UL, fmt, 19, 0 ); \
617	} else { \
618	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 16, 4 ); \
619	} /* if */ \
620	return os; \
621	} /* ?\|? */ \
622	void ?\|?( ostype & os, _Ostream_Manip(T) f ) { (ostype &)(os \| f); ends( os ); } \
623	} // distribution
624
625	IntegralFMTImpl128( int128 )
626	IntegralFMTImpl128( unsigned int128 )
627	#endif // __SIZEOF_INT128__
628
629	// ********************************* floating point *********************************
630
631	static const char *suffixes[] = {
632	"y", "z", "a", "f", "p", "n", "u", "m", "",
633	"K", "M", "G", "T", "P", "E", "Z", "Y"
634	};
635	#define SUFFIXES_START (-24) /* Smallest power for which there is a suffix defined. */
636	#define SUFFIXES_END (SUFFIXES_START + (int)((sizeof(suffixes) / sizeof(char ) - 1) 3))
637
638	#define PrintWithDP2( os, format, ... ) \
639	{ \
640	if ( ! f.flags.eng ) { \
641	len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
642	if ( isfinite( f.val ) && ( f.pc != 0 \|\| ! f.flags.nobsdp ) ) { /* if number, print decimal point when no fraction or exponent */ \
643	for ( i = 0; i < len && buf[i] != '.' && buf[i] != 'e' && buf[i] != 'E'; i += 1 ); /* decimal point or scientific ? */ \
644	if ( i == len ) { \
645	if ( ! f.flags.left ) { \
646	buf[i] = '.'; buf[i + 1] = '\0'; \
647	if ( buf[0] == ' ' ) bufbeg = 1; /* decimal point within width */ \
648	} else { \
649	for ( i = 0; i < len && buf[i] != ' '; i += 1 ); /* trailing blank ? */ \
650	buf[i] = '.'; \
651	if ( i == len ) buf[i + 1] = '\0'; \
652	} /* if */ \
653	} /* if */ \
654	} /* if */ \
655	} else { \
656	int exp10, len2; \
657	eng( f.val, f.pc, exp10 ); /* changes arguments */ \
658	if ( ! f.flags.left && f.wd > 1 ) { \
659	/* Exponent size (number of digits, 'e', optional minus sign) */ \
660	f.wd -= lrint( floor( log10( abs( exp10 ) ) ) ) + 1 + 1 + (exp10 < 0 ? 1 : 0); \
661	if ( f.wd < 1 ) f.wd = 1; \
662	} /* if */ \
663	len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
664	if ( f.flags.left ) { \
665	for ( len -= 1; len > 0 && buf[len] == ' '; len -= 1 ); \
666	len += 1; \
667	} /* if */ \
668	if ( ! f.flags.nobsdp \|\| (exp10 < SUFFIXES_START) \|\| (exp10 > SUFFIXES_END) ) { \
669	len2 = snprintf( &buf[len], size - len, "e%d", exp10 ); \
670	} else { \
671	len2 = snprintf( &buf[len], size - len, "%s", suffixes[(exp10 - SUFFIXES_START) / 3] ); \
672	} /* if */ \
673	if ( f.flags.left && len + len2 < f.wd ) buf[len + len2] = ' '; \
674	} /* if */ \
675	fmt( os, "%s", &buf[bufbeg] ); \
676	}
677
678	#define FloatingPointFMTImpl( T, DFMTNP, DFMTP ) \
679	forall( ostype & \| ostream( ostype ) ) { \
680	static void eng( T &value, int & pc, int & exp10 ) { \
681	exp10 = lrint( floor( log10( abs( value ) ) ) ); /* round to desired precision */ \
682	if ( exp10 < 0 ) exp10 -= 2; \
683	exp10 = floor( exp10, 3 ); \
684	value *= pow( 10.0, -exp10 ); \
685	if ( pc <= 3 ) pc = 3; \
686	} /* eng */ \
687	\
688	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
689	enum { size = 48 }; \
690	char buf[size]; \
691	int bufbeg = 0, i, len; \
692	\
693	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) ); \
694	char fmtstr[sizeof(DFMTP) + 8]; /* sizeof includes '\0' */ \
695	if ( ! f.flags.pc ) memcpy( &fmtstr, DFMTNP, sizeof(DFMTNP) ); \
696	else memcpy( &fmtstr, DFMTP, sizeof(DFMTP) ); \
697	int star = 4; /* position before first '' / \
698	\
699	/* Insert flags into spaces before '', from right to left. / \
700	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
701	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
702	if ( f.flags.pad0 ) { fmtstr[star] = '0'; star -= 1; } \
703	fmtstr[star] = '%'; \
704	\
705	if ( ! f.flags.pc ) { /* no precision */ \
706	fmtstr[sizeof(DFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
707	/* printf( "%g %d %s\n", f.val, f.wd, &fmtstr[star]); */ \
708	PrintWithDP2( os, &fmtstr[star], f.wd, f.val ) \
709	} else { /* precision */ \
710	fmtstr[sizeof(DFMTP)-2] = f.base; /* sizeof includes '\0' */ \
711	/* printf( "%g %d %d %s\n", f.val, f.wd, f.pc, &fmtstr[star] ); */ \
712	PrintWithDP2( os, &fmtstr[star], f.wd, f.pc, f.val ) \
713	} /* if */ \
714	return os; \
715	} /* ?\|? */ \
716	\
717	void ?\|?( ostype & os, _Ostream_Manip(T) f ) { (ostype &)(os \| f); ends( os ); } \
718	} // distribution
719
720	FloatingPointFMTImpl( double, " * ", " . " )
721	FloatingPointFMTImpl( long double, " L ", " .*L " )
722
723	// ********************************* character *********************************
724
725	forall( ostype & \| ostream( ostype ) ) {
726	ostype & ?\|?( ostype & os, _Ostream_Manip(char) f ) {
727	if ( f.base != 'c' ) { // bespoke binary/octal/hex format
728	_Ostream_Manip(unsigned char) fmtuc @= { f.val, f.wd, f.pc, f.base, {'\0'} };
729	fmtuc.flags.pc = f.flags.pc;
730	fmtuc.flags.nobsdp = f.flags.nobsdp;
731	// os \| fmtuc \| nonl;
732	(ostype &)(os \| fmtuc);
733	return os;
734	} // if
735
736	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
737
738	#define CFMTNP "% * "
739	char fmtstr[sizeof(CFMTNP)]; // sizeof includes '\0'
740	memcpy( &fmtstr, CFMTNP, sizeof(CFMTNP) );
741	int star = 1; // position before first '*'
742
743	// Insert flags into spaces before '*', from right to left.
744	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
745	fmtstr[star] = '%';
746
747	fmtstr[sizeof(CFMTNP)-2] = f.base; // sizeof includes '\0'
748	// printf( "%d %s\n", f.wd, &fmtstr[star] );
749	fmt( os, &fmtstr[star], f.wd, f.val );
750	return os;
751	} // ?\|?
752
753	void ?\|?( ostype & os, _Ostream_Manip(char) f ) { (ostype &)(os \| f); ends( os ); }
754	} // distribution
755
756	// ********************************* C string *********************************
757
758	forall( ostype & \| ostream( ostype ) ) {
759	ostype & ?\|?( ostype & os, _Ostream_Manip(const char *) f ) {
760	if ( ! f.val ) return os; // null pointer ?
761
762	if ( f.base != 's' ) { // bespoke binary/octal/hex format
763	_Ostream_Manip(unsigned char) fmtuc @= { 0, f.wd, f.pc, f.base, {'\0'} };
764	fmtuc.flags.pc = f.flags.pc;
765	fmtuc.flags.nobsdp = f.flags.nobsdp;
766	for ( unsigned int i = 0; f.val[i] != '\0'; i += 1 ) {
767	fmtuc.val = f.val[i];
768	// os \| fmtuc \| nonl;
769	(ostype &)(os \| fmtuc);
770	} // for
771	return os;
772	} // if
773
774	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
775
776	#define SFMTNP "% * "
777	#define SFMTP "% . "
778	char fmtstr[sizeof(SFMTP)]; // sizeof includes '\0'
779	if ( ! f.flags.pc ) memcpy( &fmtstr, SFMTNP, sizeof(SFMTNP) );
780	else memcpy( &fmtstr, SFMTP, sizeof(SFMTP) );
781	int star = 1; // position before first '*'
782
783	// Insert flags into spaces before '*', from right to left.
784	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
785	fmtstr[star] = '%';
786
787	if ( ! f.flags.pc ) { // no precision
788	// printf( "%d %s\n", f.wd, &fmtstr[star] );
789	fmtstr[sizeof(SFMTNP)-2] = f.base; // sizeof includes '\0'
790	fmt( os, &fmtstr[star], f.wd, f.val );
791	} else { // precision
792	fmtstr[sizeof(SFMTP)-2] = f.base; // sizeof includes '\0'
793	// printf( "%d %d %s\n", f.wd, f.pc, &fmtstr[star] );
794	fmt( os, &fmtstr[star], f.wd, f.pc, f.val );
795	} // if
796	return os;
797	} // ?\|?
798
799	void ?\|?( ostype & os, _Ostream_Manip(const char *) f ) { (ostype &)(os \| f); ends( os ); }
800	} // distribution
801
802
803	// ********************************* istream *********************************
804
805
806	forall( istype & \| istream( istype ) ) {
807	istype & ?\|?( istype & is, bool & b ) {
808	char val[6];
809	fmt( is, "%5s", val );
810	if ( strcmp( val, "true" ) == 0 ) b = true;
811	else if ( strcmp( val, "false" ) == 0 ) b = false;
812	else {
813	fprintf( stderr, "invalid Boolean constant\n" );
814	abort(); // cannot use abort stream
815	} // if
816	return is;
817	} // ?\|?
818	void ?\|?( istype & is, bool & b ) {
819	(istype &)(is \| b); ends( is );
820	} // ?\|?
821
822	istype & ?\|?( istype & is, char & c ) {
823	char temp;
824	for () {
825	fmt( is, "%c", &temp ); // must pass pointer through varg to fmt
826	// do not overwrite parameter with newline unless appropriate
827	if ( temp != '\n' \|\| getANL( is ) ) { c = temp; break; }
828	if ( eof( is ) ) break;
829	} // for
830	return is;
831	} // ?\|?
832	void ?\|?( istype & is, char & c ) {
833	(istype &)(is \| c); ends( is );
834	} // ?\|?
835
836	istype & ?\|?( istype & is, signed char & sc ) {
837	fmt( is, "%hhi", &sc );
838	return is;
839	} // ?\|?
840	void ?\|?( istype & is, signed char & sc ) {
841	(istype &)(is \| sc); ends( is );
842	} // ?\|?
843
844	istype & ?\|?( istype & is, unsigned char & usc ) {
845	fmt( is, "%hhi", &usc );
846	return is;
847	} // ?\|?
848	void ?\|?( istype & is, unsigned char & usc ) {
849	(istype &)(is \| usc); ends( is );
850	} // ?\|?
851
852	istype & ?\|?( istype & is, short int & si ) {
853	fmt( is, "%hi", &si );
854	return is;
855	} // ?\|?
856	void ?\|?( istype & is, short int & si ) {
857	(istype &)(is \| si); ends( is );
858	} // ?\|?
859
860	istype & ?\|?( istype & is, unsigned short int & usi ) {
861	fmt( is, "%hi", &usi );
862	return is;
863	} // ?\|?
864	void ?\|?( istype & is, unsigned short int & usi ) {
865	(istype &)(is \| usi); ends( is );
866	} // ?\|?
867
868	istype & ?\|?( istype & is, int & i ) {
869	fmt( is, "%i", &i );
870	return is;
871	} // ?\|?
872	void ?\|?( istype & is, int & i ) {
873	(istype &)(is \| i); ends( is );
874	} // ?\|?
875
876	istype & ?\|?( istype & is, unsigned int & ui ) {
877	fmt( is, "%i", &ui );
878	return is;
879	} // ?\|?
880	void ?\|?( istype & is, unsigned int & ui ) {
881	(istype &)(is \| ui); ends( is );
882	} // ?\|?
883
884	istype & ?\|?( istype & is, long int & li ) {
885	fmt( is, "%li", &li );
886	return is;
887	} // ?\|?
888	void ?\|?( istype & is, long int & li ) {
889	(istype &)(is \| li); ends( is );
890	} // ?\|?
891
892	istype & ?\|?( istype & is, unsigned long int & ulli ) {
893	fmt( is, "%li", &ulli );
894	return is;
895	} // ?\|?
896	void ?\|?( istype & is, unsigned long int & ulli ) {
897	(istype &)(is \| ulli); ends( is );
898	} // ?\|?
899
900	istype & ?\|?( istype & is, long long int & lli ) {
901	fmt( is, "%lli", &lli );
902	return is;
903	} // ?\|?
904	void ?\|?( istype & is, long long int & lli ) {
905	(istype &)(is \| lli); ends( is );
906	} // ?\|?
907
908	istype & ?\|?( istype & is, unsigned long long int & ulli ) {
909	fmt( is, "%lli", &ulli );
910	return is;
911	} // ?\|?
912	void & ?\|?( istype & is, unsigned long long int & ulli ) {
913	(istype &)(is \| ulli); ends( is );
914	} // ?\|?
915
916	#if defined( __SIZEOF_INT128__ )
917	istype & ?\|?( istype & is, int128 & llli ) {
918	return (istype &)(is \| (unsigned int128 &)llli);
919	} // ?\|?
920	void ?\|?( istype & is, int128 & llli ) {
921	(istype &)(is \| llli); ends( is );
922	} // ?\|?
923
924	istype & ?\|?( istype & is, unsigned int128 & ullli ) {
925	char s[40];
926	bool sign = false;
927
928	if ( fmt( is, " %[-]", s ) == 1 ) sign = true; // skip whitespace, negative sign ?
929	// If the input is too large, the value returned is undefined. If there is no input, no value is returned
930	if ( fmt( is, "%39[0-9]%*[0-9]", s ) == 1 ) { // take first 39 characters, ignore remaining
931	ullli = 0;
932	for ( unsigned int i = 0; s[i] != '\0'; i += 1 ) {
933	ullli = ullli * 10 + s[i] - '0';
934	} // for
935	if ( sign ) ullli = -ullli;
936	} else if ( sign ) ungetc( is, '-' ); // return minus when no digits
937	return is;
938	} // ?\|?
939	void ?\|?( istype & is, unsigned int128 & ullli ) {
940	(istype &)(is \| ullli); ends( is );
941	} // ?\|?
942	#endif // __SIZEOF_INT128__
943
944	istype & ?\|?( istype & is, float & f ) {
945	fmt( is, "%f", &f );
946	return is;
947	} // ?\|?
948	void ?\|?( istype & is, float & f ) {
949	(istype &)(is \| f); ends( is );
950	} // ?\|?
951
952	istype & ?\|?( istype & is, double & d ) {
953	fmt( is, "%lf", &d );
954	return is;
955	} // ?\|?
956	void ?\|?( istype & is, double & d ) {
957	(istype &)(is \| d); ends( is );
958	} // ?\|?
959
960	istype & ?\|?( istype & is, long double & ld ) {
961	fmt( is, "%Lf", &ld );
962	return is;
963	} // ?\|?
964	void ?\|?( istype & is, long double & ld ) {
965	(istype &)(is \| ld); ends( is );
966	} // ?\|?
967
968	istype & ?\|?( istype & is, float _Complex & fc ) {
969	float re, im;
970	fmt( is, "%f%fi", &re, &im );
971	fc = re + im * _Complex_I;
972	return is;
973	} // ?\|?
974	void ?\|?( istype & is, float _Complex & fc ) {
975	(istype &)(is \| fc); ends( is );
976	} // ?\|?
977
978	istype & ?\|?( istype & is, double _Complex & dc ) {
979	double re, im;
980	fmt( is, "%lf%lfi", &re, &im );
981	dc = re + im * _Complex_I;
982	return is;
983	} // ?\|?
984	void ?\|?( istype & is, double _Complex & dc ) {
985	(istype &)(is \| dc); ends( is );
986	} // ?\|?
987
988	istype & ?\|?( istype & is, long double _Complex & ldc ) {
989	long double re, im;
990	fmt( is, "%Lf%Lfi", &re, &im );
991	ldc = re + im * _Complex_I;
992	return is;
993	} // ?\|?
994	void ?\|?( istype & is, long double _Complex & ldc ) {
995	(istype &)(is \| ldc); ends( is );
996	} // ?\|?
997
998	// istype & ?\|?( istype & is, const char fmt[] ) {
999	// fmt( is, fmt, "" );
1000	// return is;
1001	// } // ?\|?
1002
1003	istype & ?\|?( istype & is, char s[] ) {
1004	fmt( is, "%s", s );
1005	return is;
1006	} // ?\|?
1007	void ?\|?( istype & is, char s[] ) {
1008	(istype &)(is \| s); ends( is );
1009	} // ?\|?
1010
1011	// manipulators
1012	istype & ?\|?( istype & is, istype & (* manip)( istype & ) ) {
1013	return manip( is );
1014	} // ?\|?
1015	void ?\|?( istype & is, istype & (* manip)( istype & ) ) {
1016	manip( is ); ends( is );
1017	} // ?\|?
1018
1019	istype & nl( istype & is ) {
1020	fmt( is, "%*[^\n]" ); // ignore characters to newline
1021	return is;
1022	} // nl
1023
1024	istype & nlOn( istype & is ) {
1025	nlOn( is ); // call void returning
1026	return is;
1027	} // nlOn
1028
1029	istype & nlOff( istype & is ) {
1030	nlOff( is ); // call void returning
1031	return is;
1032	} // nlOff
1033
1034	istype & acquire( istype & is ) {
1035	acquire( is ); // call void returning
1036	return is;
1037	} // acquire
1038	} // distribution
1039
1040	// ********************************* manipulators *********************************
1041
1042	forall( istype & \| istream( istype ) ) {
1043	istype & ?\|?( istype & is, _Istream_Cstr f ) {
1044	// skip xxx
1045	if ( ! f.s ) {
1046	// printf( "skip %s %d\n", f.scanset, f.wd );
1047	if ( f.wd == -1 ) fmt( is, f.scanset, "" ); // no input arguments
1048	else for ( f.wd ) fmt( is, "%*c" );
1049	return is;
1050	} // if
1051	size_t len = 0;
1052	if ( f.scanset ) len = strlen( f.scanset );
1053	char fmtstr[len + 16];
1054	int start = 1;
1055	fmtstr[0] = '%';
1056	if ( f.flags.ignore ) { fmtstr[1] = '*'; start += 1; }
1057	if ( f.wd != -1 ) { start += sprintf( &fmtstr[start], "%d", f.wd ); }
1058	// cstr %s, %s, %ws, %ws
1059	if ( ! f.scanset ) {
1060	fmtstr[start] = 's'; fmtstr[start + 1] = '\0';
1061	// printf( "cstr %s\n", fmtstr );
1062	fmt( is, fmtstr, f.s );
1063	return is;
1064	} // if
1065	// incl %[xxx], %[xxx], %w[xxx], %w[xxx]
1066	// excl %[^xxx], %[^xxx], %w[^xxx], %w[^xxx]
1067	fmtstr[start] = '['; start += 1;
1068	if ( f.flags.inex ) { fmtstr[start] = '^'; start += 1; }
1069	strcpy( &fmtstr[start], f.scanset ); // copy includes '\0'
1070	len += start;
1071	fmtstr[len] = ']'; fmtstr[len + 1] = '\0';
1072	// printf( "incl/excl %s\n", fmtstr );
1073	fmt( is, fmtstr, f.s );
1074	return is;
1075	} // ?\|?
1076	void ?\|?( istype & is, _Istream_Cstr f ) {
1077	(istype &)(is \| f); ends( is );
1078	} // ?\|?
1079
1080	istype & ?\|?( istype & is, _Istream_Char f ) {
1081	fmt( is, "%*c" ); // argument variable unused
1082	return is;
1083	} // ?\|?
1084	void ?\|?( istype & is, _Istream_Char f ) {
1085	(istype &)(is \| f); ends( is );
1086	} // ?\|?
1087	} // distribution
1088
1089	#define InputFMTImpl( T, CODE ) \
1090	forall( istype & \| istream( istype ) ) { \
1091	istype & ?\|?( istype & is, _Istream_Manip(T) f ) { \
1092	enum { size = 16 }; \
1093	char fmtstr[size]; \
1094	if ( f.wd == -1 ) { \
1095	snprintf( fmtstr, size, "%%%s%s", f.ignore ? "*" : "", CODE ); \
1096	} else { \
1097	snprintf( fmtstr, size, "%%%s%d%s", f.ignore ? "*" : "", f.wd, CODE ); \
1098	} /* if */ \
1099	/* printf( "%d %s %p\n", f.wd, fmtstr, &f.val ); */ \
1100	fmt( is, fmtstr, &f.val ); \
1101	return is; \
1102	} /* ?\|? */ \
1103	void ?\|?( istype & is, _Istream_Manip(T) f ) { \
1104	(istype &)(is \| f); ends( is ); \
1105	} /* ?\|? */ \
1106	} // distribution
1107
1108	InputFMTImpl( signed char, "hhi" )
1109	InputFMTImpl( unsigned char, "hhi" )
1110	InputFMTImpl( signed short int, "hi" )
1111	InputFMTImpl( unsigned short int, "hi" )
1112	InputFMTImpl( signed int, "i" )
1113	InputFMTImpl( unsigned int, "i" )
1114	InputFMTImpl( signed long int, "li" )
1115	InputFMTImpl( unsigned long int, "li" )
1116	InputFMTImpl( signed long long int, "lli" )
1117	InputFMTImpl( unsigned long long int, "lli" )
1118
1119	InputFMTImpl( float, "f" )
1120	InputFMTImpl( double, "lf" )
1121	InputFMTImpl( long double, "Lf" )
1122
1123	forall( istype & \| istream( istype ) ) {
1124	istype & ?\|?( istype & is, _Istream_Manip(float _Complex) fc ) {
1125	float re, im;
1126	_Istream_Manip(float) fmtuc @= { re, fc.wd, fc.ignore };
1127	is \| fmtuc;
1128	&fmtuc.val = &im;
1129	is \| fmtuc;
1130	if ( ! fc.ignore ) fc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1131	return is;
1132	} // ?\|?
1133	void ?\|?( istype & is, _Istream_Manip(float _Complex) fc ) {
1134	(istype &)(is \| fc); ends( is );
1135	} // ?\|?
1136
1137	istype & ?\|?( istype & is, _Istream_Manip(double _Complex) dc ) {
1138	double re, im;
1139	_Istream_Manip(double) fmtuc @= { re, dc.wd, dc.ignore };
1140	is \| fmtuc;
1141	&fmtuc.val = &im;
1142	is \| fmtuc;
1143	if ( ! dc.ignore ) dc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1144	return is;
1145	} // ?\|?
1146	void ?\|?( istype & is, _Istream_Manip(double _Complex) dc ) {
1147	(istype &)(is \| dc); ends( is );
1148	} // ?\|?
1149
1150	istype & ?\|?( istype & is, _Istream_Manip(long double _Complex) ldc ) {
1151	long double re, im;
1152	_Istream_Manip(long double) fmtuc @= { re, ldc.wd, ldc.ignore };
1153	is \| fmtuc;
1154	&fmtuc.val = &im;
1155	is \| fmtuc;
1156	if ( ! ldc.ignore ) ldc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1157	return is;
1158	} // ?\|?
1159	void ?\|?( istype & is, _Istream_Manip(long double _Complex) ldc ) {
1160	(istype &)(is \| ldc); ends( is );
1161	} // ?\|?
1162	} // distribution
1163
1164	// Local Variables: //
1165	// tab-width: 4 //
1166	// compile-command: "cfa iostream.cfa" //
1167	// End: //

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