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ADT ast-experimental enum forall-pointer-decay pthread-emulation qualifiedEnum

Last change on this file since 6fafda8 was c8371b5, checked in by Peter A. Buhr <pabuhr@…>, 4 years ago
change getANL to getANL$ (private)
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 : Sun Oct 10 09:28:17 2021
13	// Update Count : 1345
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 & \| basic_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$( os ); // reset separator
294
295	// last character IS spacing or opening punctuation => turn off separator for next item
296	int len = strlen( s );
297	ch = s[len - 1]; // must make unsigned
298	fmt( os, "%s", s ); // fmt resets seperator, but reset it again
299	if ( sepPrt$( os ) && mask[ ch ] != Open && mask[ ch ] != OpenClose ) {
300	sepOn( os );
301	} else {
302	sepOff( os );
303	} // if
304	if ( ch == '\n' ) setNL$( os, true ); // check AFTER sepPrt$ call above as it resets NL flag
305	return os;
306	// return write( os, s, len );
307	} // ?\|?
308	void ?\|?( ostype & os, const char s[] ) {
309	(ostype &)(os \| s); ends( os );
310	} // ?\|?
311
312	// ostype & ?\|?( ostype & os, const char16_t * s ) {
313	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
314	// fmt( os, "%ls", s );
315	// return os;
316	// } // ?\|?
317
318	// #if ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 ) // char32_t == wchar_t => ambiguous
319	// ostype & ?\|?( ostype & os, const char32_t * s ) {
320	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
321	// fmt( os, "%ls", s );
322	// return os;
323	// } // ?\|?
324	// #endif // ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 )
325
326	// ostype & ?\|?( ostype & os, const wchar_t * s ) {
327	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
328	// fmt( os, "%ls", s );
329	// return os;
330	// } // ?\|?
331
332	ostype & ?\|?( ostype & os, const void * p ) {
333	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
334	fmt( os, "%p", p );
335	return os;
336	} // ?\|?
337	void ?\|?( ostype & os, const void * p ) {
338	(ostype &)(os \| p); ends( os );
339	} // ?\|?
340
341	// manipulators
342	ostype & ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) {
343	return manip( os );
344	} // ?\|?
345	void ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) {
346	manip( os );
347	if ( getPrt$( os ) ) ends( os ); // something printed ?
348	setPrt$( os, false ); // turn off
349	} // ?\|?
350
351	ostype & sep( ostype & os ) {
352	return (ostype &)(os \| sepGet( os ));
353	} // sep
354
355	ostype & sepTuple( ostype & os ) {
356	return os \| sepGetTuple( os );
357	} // sepTuple
358
359	ostype & nl( ostype & os ) {
360	(ostype &)(os \| '\n');
361	setPrt$( os, false ); // turn off
362	setNL$( os, true );
363	return sepOff( os ); // prepare for next line
364	} // nl
365
366	ostype & nonl( ostype & os ) {
367	setPrt$( os, false ); // turn off
368	return os;
369	} // nonl
370
371	ostype & sepOn( ostype & os ) {
372	sepOn( os ); // call void returning
373	return os;
374	} // sepOn
375
376	ostype & sepOff( ostype & os ) {
377	sepOff( os ); // call void returning
378	return os;
379	} // sepOff
380
381	ostype & sepEnable( ostype & os ) {
382	sepEnable( os ); // call void returning
383	return os;
384	} // sepEnable
385
386	ostype & sepDisable( ostype & os ) {
387	sepDisable( os ); // call void returning
388	return os;
389	} // sepDisable
390
391	ostype & nlOn( ostype & os ) {
392	nlOn( os ); // call void returning
393	return os;
394	} // nlOn
395
396	ostype & nlOff( ostype & os ) {
397	nlOff( os ); // call void returning
398	return os;
399	} // nlOff
400	} // distribution
401
402	// tuples
403	forall( ostype &, T, Params... \| writeable( T, ostype ) \| { ostype & ?\|?( ostype &, Params ); } ) {
404	ostype & ?\|?( ostype & os, T arg, Params rest ) {
405	(ostype &)(os \| arg); // print first argument
406	sepSetCur$( os, sepGetTuple( os ) ); // switch to tuple separator
407	(ostype &)(os \| rest); // print remaining arguments
408	sepSetCur$( os, sepGet( os ) ); // switch to regular separator
409	return os;
410	} // ?\|?
411	void ?\|?( ostype & os, T arg, Params rest ) {
412	// (ostype &)(?\|?( os, arg, rest )); ends( os );
413	(ostype &)(os \| arg); // print first argument
414	sepSetCur$( os, sepGetTuple( os ) ); // switch to tuple separator
415	(ostype &)(os \| rest); // print remaining arguments
416	sepSetCur$( os, sepGet( os ) ); // switch to regular separator
417	ends( os );
418	} // ?\|?
419	} // distribution
420
421	// writes the range [begin, end) to the given stream
422	forall( ostype &, elt_type \| writeable( elt_type, ostype ), iterator_type \| iterator( iterator_type, elt_type ) ) {
423	void write( iterator_type begin, iterator_type end, ostype & os ) {
424	void print( elt_type i ) { os \| i; }
425	for_each( begin, end, print );
426	} // ?\|?
427
428	void write_reverse( iterator_type begin, iterator_type end, ostype & os ) {
429	void print( elt_type i ) { os \| i; }
430	for_each_reverse( begin, end, print );
431	} // ?\|?
432	} // distribution
433
434	// ********************************* manipulators *********************************
435
436	// ********************************* integral *********************************
437
438	static const char * shortbin[] = { "0", "1", "10", "11", "100", "101", "110", "111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
439	static const char * longbin[] = { "0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
440
441	// Default prefix for non-decimal prints is 0b, 0, 0x.
442	#define IntegralFMTImpl( T, IFMTNP, IFMTP ) \
443	forall( ostype & \| basic_ostream( ostype ) ) { \
444	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
445	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) ); \
446	\
447	if ( f.base == 'b' \|\| f.base == 'B' ) { /* bespoke binary format */ \
448	int bits = high1( f.val ); /* position of most significant bit */ \
449	if ( bits == 0 ) bits = 1; /* 0 value => force one bit to print */ \
450	int spaces; \
451	if ( ! f.flags.left ) { /* right justified ? */ \
452	/* Note, base prefix then zero padding or spacing then prefix. */ \
453	if ( f.flags.pc ) { \
454	spaces = f.wd - f.pc; \
455	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
456	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
457	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
458	spaces = f.pc - bits; \
459	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
460	} else { \
461	spaces = f.wd - bits; \
462	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
463	if ( f.flags.pad0 ) { \
464	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
465	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
466	} else { \
467	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
468	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
469	} /* if */ \
470	} /* if */ \
471	} else { \
472	if ( ! f.flags.nobsdp ) fmt( os, "0%c", f.base ); \
473	if ( f.flags.pc ) { \
474	spaces = f.pc - bits; \
475	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
476	spaces = f.wd - f.pc; \
477	} else { /* pad0 flag ignored with left flag */ \
478	spaces = f.wd - bits; \
479	} /* if */ \
480	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
481	} /* if */ \
482	int shift = floor( bits - 1, 4 ); \
483	typeof( f.val ) temp = f.val; \
484	fmt( os, "%s", shortbin[(temp >> shift) & 0xf] ); \
485	for () { \
486	shift -= 4; \
487	if ( shift < 0 ) break; \
488	temp = f.val; \
489	fmt( os, "%s", longbin[(temp >> shift) & 0xf] ); \
490	} /* for */ \
491	if ( f.flags.left && spaces > 0 ) fmt( os, "%*s", spaces, " " ); \
492	return os; \
493	} /* if */ \
494	\
495	char fmtstr[sizeof(IFMTP)]; /* sizeof includes '\0' */ \
496	if ( ! f.flags.pc ) memcpy( &fmtstr, IFMTNP, sizeof(IFMTNP) ); \
497	else memcpy( &fmtstr, IFMTP, sizeof(IFMTP) ); \
498	int star = 4; /* position before first '' / \
499	\
500	/* Insert flags into spaces before '', from right to left. / \
501	if ( ! f.flags.nobsdp ) { fmtstr[star] = '#'; star -= 1; } \
502	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
503	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
504	if ( f.flags.pad0 && ! f.flags.pc ) { fmtstr[star] = '0'; star -= 1; } \
505	fmtstr[star] = '%'; \
506	\
507	if ( ! f.flags.pc ) { /* no precision */ \
508	fmtstr[sizeof(IFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
509	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
510	fmt( os, &fmtstr[star], f.wd, f.val ); \
511	} else { /* precision */ \
512	fmtstr[sizeof(IFMTP)-2] = f.base; /* sizeof includes '\0' */ \
513	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
514	fmt( os, &fmtstr[star], f.wd, f.pc, f.val ); \
515	} /* if */ \
516	return os; \
517	} /* ?\|? */ \
518	void ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
519	(ostype &)(os \| f); ends( os ); \
520	} /* ?\|? */ \
521	} // distribution
522
523	IntegralFMTImpl( signed char, " hh ", " .*hh " )
524	IntegralFMTImpl( unsigned char, " hh ", " .*hh " )
525	IntegralFMTImpl( signed short int, " h ", " .*h " )
526	IntegralFMTImpl( unsigned short int, " h ", " .*h " )
527	IntegralFMTImpl( signed int, " * ", " . " )
528	IntegralFMTImpl( unsigned int, " * ", " . " )
529	IntegralFMTImpl( signed long int, " l ", " .*l " )
530	IntegralFMTImpl( unsigned long int, " l ", " .*l " )
531	IntegralFMTImpl( signed long long int, " ll ", " .*ll " )
532	IntegralFMTImpl( unsigned long long int, " ll ", " .*ll " )
533
534
535	#if defined( __SIZEOF_INT128__ )
536	// Default prefix for non-decimal prints is 0b, 0, 0x.
537	forall( ostype & \| basic_ostream( ostype ) )
538	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 ) {
539	int wd = 1; // f.wd is never 0 because 0 implies left-pad
540	if ( val > power ) { // subdivide value into printable 64-bit values
541	base_128( os, val / power, power, f, maxdig, bits, cnt + 1 ); // recursive
542	f.val = val % power;
543	if ( cnt == 1 && f.flags.left ) { wd = f.wd; f.wd = maxdig; } // copy f.wd and reset for printing middle chunk
544	// printf( "R val:%#lx(%lu) wd:%u pc:%u base:%c neg:%d pc:%d left:%d nobsdp:%d sign:%d pad0:%d\n",
545	// 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 );
546	(ostype &)(os \| f);
547	if ( cnt == 1 ) {
548	if ( f.flags.left ) { wd -= maxdig; f.wd = wd < 0 ? 1 : wd; } // update and restore f.wd for printing end chunk
549	sepOff( os ); // no seperator between chunks
550	} // if
551	} else { // print start chunk
552	f.val = val;
553	// f.pc is unsigned => use wd
554	if ( f.flags.pc && f.pc > maxdig * cnt ) { wd = f.pc - maxdig * cnt; f.pc = wd < 0 ? 0 : wd; }
555	else { f.flags.pc = false; f.pc = 0; }
556
557	if ( ! f.flags.left ) { // right justify
558	wd = f.wd - maxdig * cnt;
559	f.wd = wd < 0 ? 1 : wd;
560	wd = maxdig;
561	} else { // left justify
562	if ( cnt != 0 ) { // value >= 2^64 ?
563	unsigned int dig, bs = 0;
564	// compute size of prefix digits and base
565	if ( f.base == 'd' \|\| f.base == 'u' ) { // no base prefix
566	dig = ceil( log10( f.val ) ); // use floating-point
567	if ( f.base == 'd' && (f.flags.neg \|\| f.flags.sign) ) bs = 1; // sign ?
568	} else {
569	dig = ceiling_div( high1( f.val ), bits );
570	if ( ! f.flags.nobsdp ) { // base prefix ?
571	if ( f.base == 'o' ) {
572	// 0 prefix for octal is not added for precision with leading zero
573	if ( f.pc <= dig ) bs = 1; // 1 character prefix
574	} else bs = 2; // 2 character prefix
575	} // if
576	} // if
577	wd = f.wd - (f.pc > dig ? f.pc : dig) - bs; // precision > leading digits ?
578	if ( wd < 0 ) wd = 1;
579	f.wd = 1;
580	} // if
581	// all manipulators handled implicitly for value < 2^64
582	} // if
583	// prior checks ensure wd not negative
584
585	if ( f.flags.neg ) f.val = -f.val;
586	// printf( "L val:%#lx(%lu) wd:%u pc:%u base:%c neg:%d pc:%d left:%d nobsdp:%d sign:%d pad0:%d\n",
587	// 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 );
588	(ostype &)(os \| f);
589
590	// remaining middle and end chunks are padded with 0s on the left
591	if ( ! f.flags.left ) { f.flags.pad0 = true; f.flags.pc = false; } // left pad with 0s
592	else { f.pc = maxdig; f.flags.pc = true; } // left pad with precision
593
594	if ( cnt != 0 ) sepOff( os ); // no seperator between chunks
595	f.wd = wd; // reset f.wd for next chunk
596	f.flags.sign = false; // no leading +/- sign
597	f.flags.nobsdp = true; // no leading base prefix
598	} // if
599	} // base_128
600
601	#define IntegralFMTImpl128( T ) \
602	forall( ostype & \| basic_ostream( ostype ) ) { \
603	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
604	_Ostream_Manip(uint64_t) fmt; \
605	fmt.[wd, pc, base, all] = f.[wd, pc, base, all]; \
606	if ( f.base == 'b' \| f.base == 'B' ) { \
607	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 64, 1 ); \
608	} else if ( f.base == 'o' ) { \
609	base_128( os, f.val, (unsigned int128)1 << 63, fmt, 21, 3 ); \
610	} else if ( f.base == 'd' \|\| f.base == 'u' ) { \
611	if ( f.base == 'd' && f.val < 0 ) { f.val = -f.val; fmt.flags.neg = true; } \
612	base_128( os, f.val, (unsigned int128)10_000_000_000_000_000_000UL, fmt, 19, 0 ); \
613	} else { \
614	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 16, 4 ); \
615	} /* if */ \
616	return os; \
617	} /* ?\|? */ \
618	void ?\|?( ostype & os, _Ostream_Manip(T) f ) { (ostype &)(os \| f); ends( os ); } \
619	} // distribution
620
621	IntegralFMTImpl128( int128 )
622	IntegralFMTImpl128( unsigned int128 )
623	#endif // __SIZEOF_INT128__
624
625	// ********************************* floating point *********************************
626
627	static const char *suffixes[] = {
628	"y", "z", "a", "f", "p", "n", "u", "m", "",
629	"K", "M", "G", "T", "P", "E", "Z", "Y"
630	};
631	#define SUFFIXES_START (-24) /* Smallest power for which there is a suffix defined. */
632	#define SUFFIXES_END (SUFFIXES_START + (int)((sizeof(suffixes) / sizeof(char ) - 1) 3))
633
634	#define PrintWithDP2( os, format, ... ) \
635	{ \
636	if ( ! f.flags.eng ) { \
637	len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
638	if ( isfinite( f.val ) && ( f.pc != 0 \|\| ! f.flags.nobsdp ) ) { /* if number, print decimal point when no fraction or exponent */ \
639	for ( i = 0; i < len && buf[i] != '.' && buf[i] != 'e' && buf[i] != 'E'; i += 1 ); /* decimal point or scientific ? */ \
640	if ( i == len ) { \
641	if ( ! f.flags.left ) { \
642	buf[i] = '.'; buf[i + 1] = '\0'; \
643	if ( buf[0] == ' ' ) bufbeg = 1; /* decimal point within width */ \
644	} else { \
645	for ( i = 0; i < len && buf[i] != ' '; i += 1 ); /* trailing blank ? */ \
646	buf[i] = '.'; \
647	if ( i == len ) buf[i + 1] = '\0'; \
648	} /* if */ \
649	} /* if */ \
650	} /* if */ \
651	} else { \
652	int exp10, len2; \
653	eng( f.val, f.pc, exp10 ); /* changes arguments */ \
654	/* printf( "%g %d %d %d %s\n", f.val, f.wd, f.pc, exp10, format ); */ \
655	if ( ! f.flags.left && f.wd > 1 ) { \
656	/* Exponent size: 'e', optional minus sign, number of digits: log10(0) => undefined */ \
657	f.wd -= 1 + (exp10 < 0 ? 1 : 0) + lrint( floor( exp10 == 0 ? 0 : log10( abs( exp10 ) ) ) ) + 1; \
658	if ( f.wd < 1 ) f.wd = 1; \
659	} /* if */ \
660	len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
661	if ( f.flags.left ) { \
662	for ( len -= 1; len > 0 && buf[len] == ' '; len -= 1 ); \
663	len += 1; \
664	} /* if */ \
665	if ( ! f.flags.nobsdp \|\| (exp10 < SUFFIXES_START) \|\| (exp10 > SUFFIXES_END) ) { \
666	len2 = snprintf( &buf[len], size - len, "e%d", exp10 ); \
667	} else { \
668	len2 = snprintf( &buf[len], size - len, "%s", suffixes[(exp10 - SUFFIXES_START) / 3] ); \
669	} /* if */ \
670	if ( f.flags.left && len + len2 < f.wd ) buf[len + len2] = ' '; \
671	} /* if */ \
672	fmt( os, "%s", &buf[bufbeg] ); \
673	}
674
675	#define FloatingPointFMTImpl( T, DFMTNP, DFMTP ) \
676	forall( ostype & \| basic_ostream( ostype ) ) { \
677	static void eng( T &value, int & pc, int & exp10 ) { \
678	exp10 = lrint( floor( log10( abs( value ) ) ) ); /* round to desired precision */ \
679	if ( exp10 < 0 ) exp10 -= 2; \
680	exp10 = floor( exp10, 3 ); \
681	value *= pow( 10.0, -exp10 ); \
682	if ( pc <= 3 ) pc = 3; \
683	} /* eng */ \
684	\
685	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
686	enum { size = 48 }; \
687	char buf[size]; \
688	int bufbeg = 0, i, len; \
689	\
690	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) ); \
691	char fmtstr[sizeof(DFMTP) + 8]; /* sizeof includes '\0' */ \
692	if ( ! f.flags.pc ) memcpy( &fmtstr, DFMTNP, sizeof(DFMTNP) ); \
693	else memcpy( &fmtstr, DFMTP, sizeof(DFMTP) ); \
694	int star = 4; /* position before first '' / \
695	\
696	/* Insert flags into spaces before '', from right to left. / \
697	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
698	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
699	if ( f.flags.pad0 ) { fmtstr[star] = '0'; star -= 1; } \
700	fmtstr[star] = '%'; \
701	\
702	if ( ! f.flags.pc ) { /* no precision */ \
703	fmtstr[sizeof(DFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
704	/* printf( "%g %d %s\n", f.val, f.wd, &fmtstr[star] ); */ \
705	PrintWithDP2( os, &fmtstr[star], f.wd, f.val ) \
706	} else { /* precision */ \
707	fmtstr[sizeof(DFMTP)-2] = f.base; /* sizeof includes '\0' */ \
708	/* printf( "%g %d %d %s\n", f.val, f.wd, f.pc, &fmtstr[star] ); */ \
709	PrintWithDP2( os, &fmtstr[star], f.wd, f.pc, f.val ) \
710	} /* if */ \
711	return os; \
712	} /* ?\|? */ \
713	\
714	void ?\|?( ostype & os, _Ostream_Manip(T) f ) { (ostype &)(os \| f); ends( os ); } \
715	} // distribution
716
717	FloatingPointFMTImpl( double, " * ", " . " )
718	FloatingPointFMTImpl( long double, " L ", " .*L " )
719
720	// ********************************* character *********************************
721
722	forall( ostype & \| basic_ostream( ostype ) ) {
723	ostype & ?\|?( ostype & os, _Ostream_Manip(char) f ) {
724	if ( f.base != 'c' ) { // bespoke binary/octal/hex format
725	_Ostream_Manip(unsigned char) fmtuc @= { f.val, f.wd, f.pc, f.base, {'\0'} };
726	fmtuc.flags.pc = f.flags.pc;
727	fmtuc.flags.nobsdp = f.flags.nobsdp;
728	// os \| fmtuc \| nonl;
729	(ostype &)(os \| fmtuc);
730	return os;
731	} // if
732
733	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
734
735	#define CFMTNP "% * "
736	char fmtstr[sizeof(CFMTNP)]; // sizeof includes '\0'
737	memcpy( &fmtstr, CFMTNP, sizeof(CFMTNP) );
738	int star = 1; // position before first '*'
739
740	// Insert flags into spaces before '*', from right to left.
741	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
742	fmtstr[star] = '%';
743
744	fmtstr[sizeof(CFMTNP)-2] = f.base; // sizeof includes '\0'
745	// printf( "%d %s\n", f.wd, &fmtstr[star] );
746	fmt( os, &fmtstr[star], f.wd, f.val );
747	return os;
748	} // ?\|?
749
750	void ?\|?( ostype & os, _Ostream_Manip(char) f ) { (ostype &)(os \| f); ends( os ); }
751	} // distribution
752
753	// ********************************* C string *********************************
754
755	forall( ostype & \| basic_ostream( ostype ) ) {
756	ostype & ?\|?( ostype & os, _Ostream_Manip(const char *) f ) {
757	if ( ! f.val ) return os; // null pointer ?
758
759	if ( f.base != 's' ) { // bespoke binary/octal/hex format
760	_Ostream_Manip(unsigned char) fmtuc @= { 0, f.wd, f.pc, f.base, {'\0'} };
761	fmtuc.flags.pc = f.flags.pc;
762	fmtuc.flags.nobsdp = f.flags.nobsdp;
763	for ( unsigned int i = 0; f.val[i] != '\0'; i += 1 ) {
764	fmtuc.val = f.val[i];
765	// os \| fmtuc \| nonl;
766	(ostype &)(os \| fmtuc);
767	} // for
768	return os;
769	} // if
770
771	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
772
773	#define SFMTNP "% * "
774	#define SFMTP "% . "
775	char fmtstr[sizeof(SFMTP)]; // sizeof includes '\0'
776	if ( ! f.flags.pc ) memcpy( &fmtstr, SFMTNP, sizeof(SFMTNP) );
777	else memcpy( &fmtstr, SFMTP, sizeof(SFMTP) );
778	int star = 1; // position before first '*'
779
780	// Insert flags into spaces before '*', from right to left.
781	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
782	fmtstr[star] = '%';
783
784	if ( ! f.flags.pc ) { // no precision
785	// printf( "%d %s\n", f.wd, &fmtstr[star] );
786	fmtstr[sizeof(SFMTNP)-2] = f.base; // sizeof includes '\0'
787	fmt( os, &fmtstr[star], f.wd, f.val );
788	} else { // precision
789	fmtstr[sizeof(SFMTP)-2] = f.base; // sizeof includes '\0'
790	// printf( "%d %d %s\n", f.wd, f.pc, &fmtstr[star] );
791	fmt( os, &fmtstr[star], f.wd, f.pc, f.val );
792	} // if
793	return os;
794	} // ?\|?
795
796	void ?\|?( ostype & os, _Ostream_Manip(const char *) f ) { (ostype &)(os \| f); ends( os ); }
797	} // distribution
798
799
800	// ********************************* istream *********************************
801
802
803	forall( istype & \| basic_istream( istype ) ) {
804	istype & ?\|?( istype & is, bool & b ) {
805	char val[6];
806	fmt( is, "%5s", val );
807	if ( strcmp( val, "true" ) == 0 ) b = true;
808	else if ( strcmp( val, "false" ) == 0 ) b = false;
809	else {
810	fprintf( stderr, "invalid Boolean constant\n" );
811	abort(); // cannot use abort stream
812	} // if
813	return is;
814	} // ?\|?
815	void ?\|?( istype & is, bool & b ) {
816	(istype &)(is \| b); ends( is );
817	} // ?\|?
818
819	istype & ?\|?( istype & is, char & c ) {
820	char temp;
821	for () {
822	fmt( is, "%c", &temp ); // must pass pointer through varg to fmt
823	// do not overwrite parameter with newline unless appropriate
824	if ( temp != '\n' \|\| getANL$( is ) ) { c = temp; break; }
825	if ( eof( is ) ) break;
826	} // for
827	return is;
828	} // ?\|?
829	void ?\|?( istype & is, char & c ) {
830	(istype &)(is \| c); ends( is );
831	} // ?\|?
832
833	istype & ?\|?( istype & is, signed char & sc ) {
834	fmt( is, "%hhi", &sc );
835	return is;
836	} // ?\|?
837	void ?\|?( istype & is, signed char & sc ) {
838	(istype &)(is \| sc); ends( is );
839	} // ?\|?
840
841	istype & ?\|?( istype & is, unsigned char & usc ) {
842	fmt( is, "%hhi", &usc );
843	return is;
844	} // ?\|?
845	void ?\|?( istype & is, unsigned char & usc ) {
846	(istype &)(is \| usc); ends( is );
847	} // ?\|?
848
849	istype & ?\|?( istype & is, short int & si ) {
850	fmt( is, "%hi", &si );
851	return is;
852	} // ?\|?
853	void ?\|?( istype & is, short int & si ) {
854	(istype &)(is \| si); ends( is );
855	} // ?\|?
856
857	istype & ?\|?( istype & is, unsigned short int & usi ) {
858	fmt( is, "%hi", &usi );
859	return is;
860	} // ?\|?
861	void ?\|?( istype & is, unsigned short int & usi ) {
862	(istype &)(is \| usi); ends( is );
863	} // ?\|?
864
865	istype & ?\|?( istype & is, int & i ) {
866	fmt( is, "%i", &i );
867	return is;
868	} // ?\|?
869	void ?\|?( istype & is, int & i ) {
870	(istype &)(is \| i); ends( is );
871	} // ?\|?
872
873	istype & ?\|?( istype & is, unsigned int & ui ) {
874	fmt( is, "%i", &ui );
875	return is;
876	} // ?\|?
877	void ?\|?( istype & is, unsigned int & ui ) {
878	(istype &)(is \| ui); ends( is );
879	} // ?\|?
880
881	istype & ?\|?( istype & is, long int & li ) {
882	fmt( is, "%li", &li );
883	return is;
884	} // ?\|?
885	void ?\|?( istype & is, long int & li ) {
886	(istype &)(is \| li); ends( is );
887	} // ?\|?
888
889	istype & ?\|?( istype & is, unsigned long int & ulli ) {
890	fmt( is, "%li", &ulli );
891	return is;
892	} // ?\|?
893	void ?\|?( istype & is, unsigned long int & ulli ) {
894	(istype &)(is \| ulli); ends( is );
895	} // ?\|?
896
897	istype & ?\|?( istype & is, long long int & lli ) {
898	fmt( is, "%lli", &lli );
899	return is;
900	} // ?\|?
901	void ?\|?( istype & is, long long int & lli ) {
902	(istype &)(is \| lli); ends( is );
903	} // ?\|?
904
905	istype & ?\|?( istype & is, unsigned long long int & ulli ) {
906	fmt( is, "%lli", &ulli );
907	return is;
908	} // ?\|?
909	void & ?\|?( istype & is, unsigned long long int & ulli ) {
910	(istype &)(is \| ulli); ends( is );
911	} // ?\|?
912
913	#if defined( __SIZEOF_INT128__ )
914	istype & ?\|?( istype & is, int128 & llli ) {
915	return (istype &)(is \| (unsigned int128 &)llli);
916	} // ?\|?
917	void ?\|?( istype & is, int128 & llli ) {
918	(istype &)(is \| llli); ends( is );
919	} // ?\|?
920
921	istype & ?\|?( istype & is, unsigned int128 & ullli ) {
922	char s[40];
923	bool sign = false;
924
925	if ( fmt( is, " %[-]", s ) == 1 ) sign = true; // skip whitespace, negative sign ?
926	// If the input is too large, the value returned is undefined. If there is no input, no value is returned
927	if ( fmt( is, "%39[0-9]%*[0-9]", s ) == 1 ) { // take first 39 characters, ignore remaining
928	ullli = 0;
929	for ( unsigned int i = 0; s[i] != '\0'; i += 1 ) {
930	ullli = ullli * 10 + s[i] - '0';
931	} // for
932	if ( sign ) ullli = -ullli;
933	} else if ( sign ) ungetc( is, '-' ); // return minus when no digits
934	return is;
935	} // ?\|?
936	void ?\|?( istype & is, unsigned int128 & ullli ) {
937	(istype &)(is \| ullli); ends( is );
938	} // ?\|?
939	#endif // __SIZEOF_INT128__
940
941	istype & ?\|?( istype & is, float & f ) {
942	fmt( is, "%f", &f );
943	return is;
944	} // ?\|?
945	void ?\|?( istype & is, float & f ) {
946	(istype &)(is \| f); ends( is );
947	} // ?\|?
948
949	istype & ?\|?( istype & is, double & d ) {
950	fmt( is, "%lf", &d );
951	return is;
952	} // ?\|?
953	void ?\|?( istype & is, double & d ) {
954	(istype &)(is \| d); ends( is );
955	} // ?\|?
956
957	istype & ?\|?( istype & is, long double & ld ) {
958	fmt( is, "%Lf", &ld );
959	return is;
960	} // ?\|?
961	void ?\|?( istype & is, long double & ld ) {
962	(istype &)(is \| ld); ends( is );
963	} // ?\|?
964
965	istype & ?\|?( istype & is, float _Complex & fc ) {
966	float re, im;
967	fmt( is, "%f%fi", &re, &im );
968	fc = re + im * _Complex_I;
969	return is;
970	} // ?\|?
971	void ?\|?( istype & is, float _Complex & fc ) {
972	(istype &)(is \| fc); ends( is );
973	} // ?\|?
974
975	istype & ?\|?( istype & is, double _Complex & dc ) {
976	double re, im;
977	fmt( is, "%lf%lfi", &re, &im );
978	dc = re + im * _Complex_I;
979	return is;
980	} // ?\|?
981	void ?\|?( istype & is, double _Complex & dc ) {
982	(istype &)(is \| dc); ends( is );
983	} // ?\|?
984
985	istype & ?\|?( istype & is, long double _Complex & ldc ) {
986	long double re, im;
987	fmt( is, "%Lf%Lfi", &re, &im );
988	ldc = re + im * _Complex_I;
989	return is;
990	} // ?\|?
991	void ?\|?( istype & is, long double _Complex & ldc ) {
992	(istype &)(is \| ldc); ends( is );
993	} // ?\|?
994
995	// istype & ?\|?( istype & is, const char fmt[] ) {
996	// fmt( is, fmt, "" );
997	// return is;
998	// } // ?\|?
999
1000	istype & ?\|?( istype & is, char s[] ) {
1001	fmt( is, "%s", s );
1002	return is;
1003	} // ?\|?
1004	void ?\|?( istype & is, char s[] ) {
1005	(istype &)(is \| s); ends( is );
1006	} // ?\|?
1007
1008	// manipulators
1009	istype & ?\|?( istype & is, istype & (* manip)( istype & ) ) {
1010	return manip( is );
1011	} // ?\|?
1012	void ?\|?( istype & is, istype & (* manip)( istype & ) ) {
1013	manip( is ); ends( is );
1014	} // ?\|?
1015
1016	istype & nl( istype & is ) {
1017	fmt( is, "%*[^\n]" ); // ignore characters to newline
1018	return is;
1019	} // nl
1020
1021	istype & nlOn( istype & is ) {
1022	nlOn( is ); // call void returning
1023	return is;
1024	} // nlOn
1025
1026	istype & nlOff( istype & is ) {
1027	nlOff( is ); // call void returning
1028	return is;
1029	} // nlOff
1030	} // distribution
1031
1032	// ********************************* manipulators *********************************
1033
1034	forall( istype & \| basic_istream( istype ) ) {
1035	istype & ?\|?( istype & is, _Istream_Cstr f ) {
1036	// skip xxx
1037	if ( ! f.s ) {
1038	// printf( "skip %s %d\n", f.scanset, f.wd );
1039	if ( f.wd == -1 ) fmt( is, f.scanset, "" ); // no input arguments
1040	else for ( f.wd ) fmt( is, "%*c" );
1041	return is;
1042	} // if
1043	size_t len = 0;
1044	if ( f.scanset ) len = strlen( f.scanset );
1045	char fmtstr[len + 16];
1046	int start = 1;
1047	fmtstr[0] = '%';
1048	if ( f.flags.ignore ) { fmtstr[1] = '*'; start += 1; }
1049	if ( f.wd != -1 ) { start += sprintf( &fmtstr[start], "%d", f.wd ); }
1050	// cstr %s, %s, %ws, %ws
1051	if ( ! f.scanset ) {
1052	fmtstr[start] = 's'; fmtstr[start + 1] = '\0';
1053	// printf( "cstr %s\n", fmtstr );
1054	fmt( is, fmtstr, f.s );
1055	return is;
1056	} // if
1057	// incl %[xxx], %[xxx], %w[xxx], %w[xxx]
1058	// excl %[^xxx], %[^xxx], %w[^xxx], %w[^xxx]
1059	fmtstr[start] = '['; start += 1;
1060	if ( f.flags.inex ) { fmtstr[start] = '^'; start += 1; }
1061	strcpy( &fmtstr[start], f.scanset ); // copy includes '\0'
1062	len += start;
1063	fmtstr[len] = ']'; fmtstr[len + 1] = '\0';
1064	// printf( "incl/excl %s\n", fmtstr );
1065	fmt( is, fmtstr, f.s );
1066	return is;
1067	} // ?\|?
1068	void ?\|?( istype & is, _Istream_Cstr f ) {
1069	(istype &)(is \| f); ends( is );
1070	} // ?\|?
1071
1072	istype & ?\|?( istype & is, _Istream_Char f ) {
1073	fmt( is, "%*c" ); // argument variable unused
1074	return is;
1075	} // ?\|?
1076	void ?\|?( istype & is, _Istream_Char f ) {
1077	(istype &)(is \| f); ends( is );
1078	} // ?\|?
1079	} // distribution
1080
1081	#define InputFMTImpl( T, CODE ) \
1082	forall( istype & \| basic_istream( istype ) ) { \
1083	istype & ?\|?( istype & is, _Istream_Manip(T) f ) { \
1084	enum { size = 16 }; \
1085	char fmtstr[size]; \
1086	if ( f.wd == -1 ) { \
1087	snprintf( fmtstr, size, "%%%s%s", f.ignore ? "*" : "", CODE ); \
1088	} else { \
1089	snprintf( fmtstr, size, "%%%s%d%s", f.ignore ? "*" : "", f.wd, CODE ); \
1090	} /* if */ \
1091	/* printf( "%d %s %p\n", f.wd, fmtstr, &f.val ); */ \
1092	fmt( is, fmtstr, &f.val ); \
1093	return is; \
1094	} /* ?\|? */ \
1095	void ?\|?( istype & is, _Istream_Manip(T) f ) { \
1096	(istype &)(is \| f); ends( is ); \
1097	} /* ?\|? */ \
1098	} // distribution
1099
1100	InputFMTImpl( signed char, "hhi" )
1101	InputFMTImpl( unsigned char, "hhi" )
1102	InputFMTImpl( signed short int, "hi" )
1103	InputFMTImpl( unsigned short int, "hi" )
1104	InputFMTImpl( signed int, "i" )
1105	InputFMTImpl( unsigned int, "i" )
1106	InputFMTImpl( signed long int, "li" )
1107	InputFMTImpl( unsigned long int, "li" )
1108	InputFMTImpl( signed long long int, "lli" )
1109	InputFMTImpl( unsigned long long int, "lli" )
1110
1111	InputFMTImpl( float, "f" )
1112	InputFMTImpl( double, "lf" )
1113	InputFMTImpl( long double, "Lf" )
1114
1115	forall( istype & \| basic_istream( istype ) ) {
1116	istype & ?\|?( istype & is, _Istream_Manip(float _Complex) fc ) {
1117	float re, im;
1118	_Istream_Manip(float) fmtuc @= { re, fc.wd, fc.ignore };
1119	is \| fmtuc;
1120	&fmtuc.val = &im;
1121	is \| fmtuc;
1122	if ( ! fc.ignore ) fc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1123	return is;
1124	} // ?\|?
1125	void ?\|?( istype & is, _Istream_Manip(float _Complex) fc ) {
1126	(istype &)(is \| fc); ends( is );
1127	} // ?\|?
1128
1129	istype & ?\|?( istype & is, _Istream_Manip(double _Complex) dc ) {
1130	double re, im;
1131	_Istream_Manip(double) fmtuc @= { re, dc.wd, dc.ignore };
1132	is \| fmtuc;
1133	&fmtuc.val = &im;
1134	is \| fmtuc;
1135	if ( ! dc.ignore ) dc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1136	return is;
1137	} // ?\|?
1138	void ?\|?( istype & is, _Istream_Manip(double _Complex) dc ) {
1139	(istype &)(is \| dc); ends( is );
1140	} // ?\|?
1141
1142	istype & ?\|?( istype & is, _Istream_Manip(long double _Complex) ldc ) {
1143	long double re, im;
1144	_Istream_Manip(long double) fmtuc @= { re, ldc.wd, ldc.ignore };
1145	is \| fmtuc;
1146	&fmtuc.val = &im;
1147	is \| fmtuc;
1148	if ( ! ldc.ignore ) ldc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1149	return is;
1150	} // ?\|?
1151	void ?\|?( istype & is, _Istream_Manip(long double _Complex) ldc ) {
1152	(istype &)(is \| ldc); ends( is );
1153	} // ?\|?
1154	} // distribution
1155
1156	// Local Variables: //
1157	// tab-width: 4 //
1158	// compile-command: "cfa iostream.cfa" //
1159	// End: //

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