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

Last change on this file since fde0a58 was 6a33e40, checked in by Peter A. Buhr <pabuhr@…>, 4 years ago
print 0p for NULL char * pointer
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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 : Wed Jan 19 08:15:53 2022
13	// Update Count : 1352
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 == 0p ) { fmt( os, "%s", "0p" ); return os; } // null pointer
285	if ( s[0] == '\0' ) { sepOff( os ); return os; } // null string => no separator
286
287	// first character IS NOT spacing or closing punctuation => add left separator
288	unsigned char ch = s[0]; // must make unsigned
289	if ( sepPrt$( os ) && mask[ ch ] != Close && mask[ ch ] != OpenClose ) {
290	fmt( os, "%s", sepGetCur$( os ) );
291	} // if
292
293	// if string starts line, must reset to determine open state because separator is off
294	sepReset$( os ); // reset separator
295
296	// last character IS spacing or opening punctuation => turn off separator for next item
297	int len = strlen( s );
298	ch = s[len - 1]; // must make unsigned
299	fmt( os, "%s", s ); // fmt resets seperator, but reset it again
300	if ( sepPrt$( os ) && mask[ ch ] != Open && mask[ ch ] != OpenClose ) {
301	sepOn( os );
302	} else {
303	sepOff( os );
304	} // if
305	if ( ch == '\n' ) setNL$( os, true ); // check AFTER sepPrt$ call above as it resets NL flag
306	return os;
307	// return write( os, s, len );
308	} // ?\|?
309	void ?\|?( ostype & os, const char s[] ) {
310	(ostype &)(os \| s); ends( os );
311	} // ?\|?
312
313	// ostype & ?\|?( ostype & os, const char16_t * s ) {
314	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
315	// fmt( os, "%ls", s );
316	// return os;
317	// } // ?\|?
318
319	// #if ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 ) // char32_t == wchar_t => ambiguous
320	// ostype & ?\|?( ostype & os, const char32_t * s ) {
321	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
322	// fmt( os, "%ls", s );
323	// return os;
324	// } // ?\|?
325	// #endif // ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 )
326
327	// ostype & ?\|?( ostype & os, const wchar_t * s ) {
328	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
329	// fmt( os, "%ls", s );
330	// return os;
331	// } // ?\|?
332
333	ostype & ?\|?( ostype & os, const void * p ) {
334	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
335	fmt( os, "%p", p );
336	return os;
337	} // ?\|?
338	void ?\|?( ostype & os, const void * p ) {
339	(ostype &)(os \| p); ends( os );
340	} // ?\|?
341
342	// manipulators
343	ostype & ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) {
344	return manip( os );
345	} // ?\|?
346	void ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) {
347	manip( os );
348	if ( getPrt$( os ) ) ends( os ); // something printed ?
349	setPrt$( os, false ); // turn off
350	} // ?\|?
351
352	ostype & sep( ostype & os ) {
353	return (ostype &)(os \| sepGet( os ));
354	} // sep
355
356	ostype & sepTuple( ostype & os ) {
357	return os \| sepGetTuple( os );
358	} // sepTuple
359
360	ostype & nl( ostype & os ) {
361	(ostype &)(os \| '\n');
362	setPrt$( os, false ); // turn off
363	setNL$( os, true );
364	return sepOff( os ); // prepare for next line
365	} // nl
366
367	ostype & nonl( ostype & os ) {
368	setPrt$( os, false ); // turn off
369	return os;
370	} // nonl
371
372	ostype & sepOn( ostype & os ) {
373	sepOn( os ); // call void returning
374	return os;
375	} // sepOn
376
377	ostype & sepOff( ostype & os ) {
378	sepOff( os ); // call void returning
379	return os;
380	} // sepOff
381
382	ostype & sepEnable( ostype & os ) {
383	sepEnable( os ); // call void returning
384	return os;
385	} // sepEnable
386
387	ostype & sepDisable( ostype & os ) {
388	sepDisable( os ); // call void returning
389	return os;
390	} // sepDisable
391
392	ostype & nlOn( ostype & os ) {
393	nlOn( os ); // call void returning
394	return os;
395	} // nlOn
396
397	ostype & nlOff( ostype & os ) {
398	nlOff( os ); // call void returning
399	return os;
400	} // nlOff
401	} // distribution
402
403	// tuples
404	forall( ostype &, T, Params... \| writeable( T, ostype ) \| { ostype & ?\|?( ostype &, Params ); } ) {
405	ostype & ?\|?( ostype & os, T arg, Params rest ) {
406	(ostype &)(os \| arg); // print first argument
407	sepSetCur$( os, sepGetTuple( os ) ); // switch to tuple separator
408	(ostype &)(os \| rest); // print remaining arguments
409	sepSetCur$( os, sepGet( os ) ); // switch to regular separator
410	return os;
411	} // ?\|?
412	void ?\|?( ostype & os, T arg, Params rest ) {
413	// (ostype &)(?\|?( os, arg, rest )); ends( os );
414	(ostype &)(os \| arg); // print first argument
415	sepSetCur$( os, sepGetTuple( os ) ); // switch to tuple separator
416	(ostype &)(os \| rest); // print remaining arguments
417	sepSetCur$( os, sepGet( os ) ); // switch to regular separator
418	ends( os );
419	} // ?\|?
420	} // distribution
421
422	// writes the range [begin, end) to the given stream
423	forall( ostype &, elt_type \| writeable( elt_type, ostype ), iterator_type \| iterator( iterator_type, elt_type ) ) {
424	void write( iterator_type begin, iterator_type end, ostype & os ) {
425	void print( elt_type i ) { os \| i; }
426	for_each( begin, end, print );
427	} // ?\|?
428
429	void write_reverse( iterator_type begin, iterator_type end, ostype & os ) {
430	void print( elt_type i ) { os \| i; }
431	for_each_reverse( begin, end, print );
432	} // ?\|?
433	} // distribution
434
435	// ********************************* manipulators *********************************
436
437	// ********************************* integral *********************************
438
439	static const char * shortbin[] = { "0", "1", "10", "11", "100", "101", "110", "111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
440	static const char * longbin[] = { "0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
441
442	// Default prefix for non-decimal prints is 0b, 0, 0x.
443	#define IntegralFMTImpl( T, IFMTNP, IFMTP ) \
444	forall( ostype & \| basic_ostream( ostype ) ) { \
445	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
446	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) ); \
447	\
448	if ( f.base == 'b' \|\| f.base == 'B' ) { /* bespoke binary format */ \
449	int bits = high1( f.val ); /* position of most significant bit */ \
450	if ( bits == 0 ) bits = 1; /* 0 value => force one bit to print */ \
451	int spaces; \
452	if ( ! f.flags.left ) { /* right justified ? */ \
453	/* Note, base prefix then zero padding or spacing then prefix. */ \
454	if ( f.flags.pc ) { \
455	spaces = f.wd - f.pc; \
456	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
457	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
458	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
459	spaces = f.pc - bits; \
460	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
461	} else { \
462	spaces = f.wd - bits; \
463	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
464	if ( f.flags.pad0 ) { \
465	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
466	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
467	} else { \
468	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
469	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
470	} /* if */ \
471	} /* if */ \
472	} else { \
473	if ( ! f.flags.nobsdp ) fmt( os, "0%c", f.base ); \
474	if ( f.flags.pc ) { \
475	spaces = f.pc - bits; \
476	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
477	spaces = f.wd - f.pc; \
478	} else { /* pad0 flag ignored with left flag */ \
479	spaces = f.wd - bits; \
480	} /* if */ \
481	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
482	} /* if */ \
483	int shift = floor( bits - 1, 4 ); \
484	typeof( f.val ) temp = f.val; \
485	fmt( os, "%s", shortbin[(temp >> shift) & 0xf] ); \
486	for () { \
487	shift -= 4; \
488	if ( shift < 0 ) break; \
489	temp = f.val; \
490	fmt( os, "%s", longbin[(temp >> shift) & 0xf] ); \
491	} /* for */ \
492	if ( f.flags.left && spaces > 0 ) fmt( os, "%*s", spaces, " " ); \
493	return os; \
494	} /* if */ \
495	\
496	char fmtstr[sizeof(IFMTP)]; /* sizeof includes '\0' */ \
497	if ( ! f.flags.pc ) memcpy( &fmtstr, IFMTNP, sizeof(IFMTNP) ); \
498	else memcpy( &fmtstr, IFMTP, sizeof(IFMTP) ); \
499	int star = 5; /* position before first '' / \
500	\
501	/* Insert flags into spaces before '', from right to left. / \
502	if ( ! f.flags.nobsdp ) { fmtstr[star] = '#'; star -= 1; } \
503	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
504	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
505	if ( f.flags.pad0 && ! f.flags.pc ) { fmtstr[star] = '0'; star -= 1; } \
506	fmtstr[star] = '\''; star -= 1; /* locale */ \
507	fmtstr[star] = '%'; \
508	\
509	if ( ! f.flags.pc ) { /* no precision */ \
510	fmtstr[sizeof(IFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
511	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
512	fmt( os, &fmtstr[star], f.wd, f.val ); \
513	} else { /* precision */ \
514	fmtstr[sizeof(IFMTP)-2] = f.base; /* sizeof includes '\0' */ \
515	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
516	fmt( os, &fmtstr[star], f.wd, f.pc, f.val ); \
517	} /* if */ \
518	return os; \
519	} /* ?\|? */ \
520	void ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
521	(ostype &)(os \| f); ends( os ); \
522	} /* ?\|? */ \
523	} // distribution
524
525	IntegralFMTImpl( signed char, " hh ", " .*hh " )
526	IntegralFMTImpl( unsigned char, " hh ", " .*hh " )
527	IntegralFMTImpl( signed short int, " h ", " .*h " )
528	IntegralFMTImpl( unsigned short int, " h ", " .*h " )
529	IntegralFMTImpl( signed int, " * ", " . " )
530	IntegralFMTImpl( unsigned int, " * ", " . " )
531	IntegralFMTImpl( signed long int, " l ", " .*l " )
532	IntegralFMTImpl( unsigned long int, " l ", " .*l " )
533	IntegralFMTImpl( signed long long int, " ll ", " .*ll " )
534	IntegralFMTImpl( unsigned long long int, " ll ", " .*ll " )
535
536
537	#if defined( __SIZEOF_INT128__ )
538	// Default prefix for non-decimal prints is 0b, 0, 0x.
539	forall( ostype & \| basic_ostream( ostype ) )
540	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 ) {
541	int wd = 1; // f.wd is never 0 because 0 implies left-pad
542	if ( val > power ) { // subdivide value into printable 64-bit values
543	base_128( os, val / power, power, f, maxdig, bits, cnt + 1 ); // recursive
544	f.val = val % power;
545	if ( cnt == 1 && f.flags.left ) { wd = f.wd; f.wd = maxdig; } // copy f.wd and reset for printing middle chunk
546	// printf( "R val:%#lx(%lu) wd:%u pc:%u base:%c neg:%d pc:%d left:%d nobsdp:%d sign:%d pad0:%d\n",
547	// 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 );
548	(ostype &)(os \| f);
549	if ( cnt == 1 ) {
550	if ( f.flags.left ) { wd -= maxdig; f.wd = wd < 0 ? 1 : wd; } // update and restore f.wd for printing end chunk
551	sepOff( os ); // no seperator between chunks
552	} // if
553	} else { // print start chunk
554	f.val = val;
555	// f.pc is unsigned => use wd
556	if ( f.flags.pc && f.pc > maxdig * cnt ) { wd = f.pc - maxdig * cnt; f.pc = wd < 0 ? 0 : wd; }
557	else { f.flags.pc = false; f.pc = 0; }
558
559	if ( ! f.flags.left ) { // right justify
560	wd = f.wd - maxdig * cnt;
561	f.wd = wd < 0 ? 1 : wd;
562	wd = maxdig;
563	} else { // left justify
564	if ( cnt != 0 ) { // value >= 2^64 ?
565	unsigned int dig, bs = 0;
566	// compute size of prefix digits and base
567	if ( f.base == 'd' \|\| f.base == 'u' ) { // no base prefix
568	dig = ceil( log10( f.val ) ); // use floating-point
569	if ( f.base == 'd' && (f.flags.neg \|\| f.flags.sign) ) bs = 1; // sign ?
570	} else {
571	dig = ceiling_div( high1( f.val ), bits );
572	if ( ! f.flags.nobsdp ) { // base prefix ?
573	if ( f.base == 'o' ) {
574	// 0 prefix for octal is not added for precision with leading zero
575	if ( f.pc <= dig ) bs = 1; // 1 character prefix
576	} else bs = 2; // 2 character prefix
577	} // if
578	} // if
579	wd = f.wd - (f.pc > dig ? f.pc : dig) - bs; // precision > leading digits ?
580	if ( wd < 0 ) wd = 1;
581	f.wd = 1;
582	} // if
583	// all manipulators handled implicitly for value < 2^64
584	} // if
585	// prior checks ensure wd not negative
586
587	if ( f.flags.neg ) f.val = -f.val;
588	// printf( "L val:%#lx(%lu) wd:%u pc:%u base:%c neg:%d pc:%d left:%d nobsdp:%d sign:%d pad0:%d\n",
589	// 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 );
590	(ostype &)(os \| f);
591
592	// remaining middle and end chunks are padded with 0s on the left
593	if ( ! f.flags.left ) { f.flags.pad0 = true; f.flags.pc = false; } // left pad with 0s
594	else { f.pc = maxdig; f.flags.pc = true; } // left pad with precision
595
596	if ( cnt != 0 ) sepOff( os ); // no seperator between chunks
597	f.wd = wd; // reset f.wd for next chunk
598	f.flags.sign = false; // no leading +/- sign
599	f.flags.nobsdp = true; // no leading base prefix
600	} // if
601	} // base_128
602
603	#define IntegralFMTImpl128( T ) \
604	forall( ostype & \| basic_ostream( ostype ) ) { \
605	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
606	_Ostream_Manip(uint64_t) fmt; \
607	fmt.[wd, pc, base, all] = f.[wd, pc, base, all]; \
608	if ( f.base == 'b' \| f.base == 'B' ) { \
609	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 64, 1 ); \
610	} else if ( f.base == 'o' ) { \
611	base_128( os, f.val, (unsigned int128)1 << 63, fmt, 21, 3 ); \
612	} else if ( f.base == 'd' \|\| f.base == 'u' ) { \
613	if ( f.base == 'd' && f.val < 0 ) { f.val = -f.val; fmt.flags.neg = true; } \
614	base_128( os, f.val, (unsigned int128)10_000_000_000_000_000_000UL, fmt, 19, 0 ); \
615	} else { \
616	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 16, 4 ); \
617	} /* if */ \
618	return os; \
619	} /* ?\|? */ \
620	void ?\|?( ostype & os, _Ostream_Manip(T) f ) { (ostype &)(os \| f); ends( os ); } \
621	} // distribution
622
623	IntegralFMTImpl128( int128 )
624	IntegralFMTImpl128( unsigned int128 )
625	#endif // __SIZEOF_INT128__
626
627	// ********************************* floating point *********************************
628
629	static const char *suffixes[] = {
630	"y", "z", "a", "f", "p", "n", "u", "m", "",
631	"K", "M", "G", "T", "P", "E", "Z", "Y"
632	};
633	#define SUFFIXES_START (-24) /* Smallest power for which there is a suffix defined. */
634	#define SUFFIXES_END (SUFFIXES_START + (int)((sizeof(suffixes) / sizeof(char ) - 1) 3))
635
636	#define PrintWithDP2( os, format, ... ) \
637	{ \
638	if ( ! f.flags.eng ) { \
639	len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
640	if ( isfinite( f.val ) && ( f.pc != 0 \|\| ! f.flags.nobsdp ) ) { /* if number, print decimal point when no fraction or exponent */ \
641	for ( i = 0; i < len && buf[i] != '.' && buf[i] != 'e' && buf[i] != 'E'; i += 1 ); /* decimal point or scientific ? */ \
642	if ( i == len ) { \
643	if ( ! f.flags.left ) { \
644	buf[i] = '.'; buf[i + 1] = '\0'; \
645	if ( buf[0] == ' ' ) bufbeg = 1; /* decimal point within width */ \
646	} else { \
647	for ( i = 0; i < len && buf[i] != ' '; i += 1 ); /* trailing blank ? */ \
648	buf[i] = '.'; \
649	if ( i == len ) buf[i + 1] = '\0'; \
650	} /* if */ \
651	} /* if */ \
652	} /* if */ \
653	} else { \
654	int exp10, len2; \
655	eng( f.val, f.pc, exp10 ); /* changes arguments */ \
656	/* printf( "%g %d %d %d %s\n", f.val, f.wd, f.pc, exp10, format ); */ \
657	if ( ! f.flags.left && f.wd > 1 ) { \
658	/* Exponent size: 'e', optional minus sign, number of digits: log10(0) => undefined */ \
659	f.wd -= 1 + (exp10 < 0 ? 1 : 0) + lrint( floor( exp10 == 0 ? 0 : log10( abs( exp10 ) ) ) ) + 1; \
660	if ( f.wd < 1 ) f.wd = 1; \
661	} /* if */ \
662	len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
663	if ( f.flags.left ) { \
664	for ( len -= 1; len > 0 && buf[len] == ' '; len -= 1 ); \
665	len += 1; \
666	} /* if */ \
667	if ( ! f.flags.nobsdp \|\| (exp10 < SUFFIXES_START) \|\| (exp10 > SUFFIXES_END) ) { \
668	len2 = snprintf( &buf[len], size - len, "e%d", exp10 ); \
669	} else { \
670	len2 = snprintf( &buf[len], size - len, "%s", suffixes[(exp10 - SUFFIXES_START) / 3] ); \
671	} /* if */ \
672	if ( f.flags.left && len + len2 < f.wd ) buf[len + len2] = ' '; \
673	} /* if */ \
674	fmt( os, "%s", &buf[bufbeg] ); \
675	}
676
677	#define FloatingPointFMTImpl( T, DFMTNP, DFMTP ) \
678	forall( ostype & \| basic_ostream( ostype ) ) { \
679	static void eng( T &value, int & pc, int & exp10 ) { \
680	exp10 = lrint( floor( log10( abs( value ) ) ) ); /* round to desired precision */ \
681	if ( exp10 < 0 ) exp10 -= 2; \
682	exp10 = floor( exp10, 3 ); \
683	value *= pow( 10.0, -exp10 ); \
684	if ( pc <= 3 ) pc = 3; \
685	} /* eng */ \
686	\
687	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
688	enum { size = 48 }; \
689	char buf[size]; \
690	int bufbeg = 0, i, len; \
691	\
692	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) ); \
693	char fmtstr[sizeof(DFMTP) + 8]; /* sizeof includes '\0' */ \
694	if ( ! f.flags.pc ) memcpy( &fmtstr, DFMTNP, sizeof(DFMTNP) ); \
695	else memcpy( &fmtstr, DFMTP, sizeof(DFMTP) ); \
696	int star = 5; /* position before first '' / \
697	\
698	/* Insert flags into spaces before '', from right to left. / \
699	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
700	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
701	if ( f.flags.pad0 ) { fmtstr[star] = '0'; star -= 1; } \
702	fmtstr[star] = '\''; star -= 1; /* locale */ \
703	fmtstr[star] = '%'; \
704	\
705	if ( ! f.flags.pc ) { /* no precision */ \
706	fmtstr[sizeof(DFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
707	/* printf( "%g %d %s\n", f.val, f.wd, &fmtstr[star] ); */ \
708	PrintWithDP2( os, &fmtstr[star], f.wd, f.val ) \
709	} else { /* precision */ \
710	fmtstr[sizeof(DFMTP)-2] = f.base; /* sizeof includes '\0' */ \
711	/* printf( "%g %d %d %s\n", f.val, f.wd, f.pc, &fmtstr[star] ); */ \
712	PrintWithDP2( os, &fmtstr[star], f.wd, f.pc, f.val ) \
713	} /* if */ \
714	return os; \
715	} /* ?\|? */ \
716	\
717	void ?\|?( ostype & os, _Ostream_Manip(T) f ) { (ostype &)(os \| f); ends( os ); } \
718	} // distribution
719
720	FloatingPointFMTImpl( double, " * ", " . " )
721	FloatingPointFMTImpl( long double, " L ", " .*L " )
722
723	// ********************************* character *********************************
724
725	forall( ostype & \| basic_ostream( ostype ) ) {
726	ostype & ?\|?( ostype & os, _Ostream_Manip(char) f ) {
727	if ( f.base != 'c' ) { // bespoke binary/octal/hex format
728	_Ostream_Manip(unsigned char) fmtuc @= { f.val, f.wd, f.pc, f.base, {'\0'} };
729	fmtuc.flags.pc = f.flags.pc;
730	fmtuc.flags.nobsdp = f.flags.nobsdp;
731	// os \| fmtuc \| nonl;
732	(ostype &)(os \| fmtuc);
733	return os;
734	} // if
735
736	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
737
738	#define CFMTNP "% * "
739	char fmtstr[sizeof(CFMTNP)]; // sizeof includes '\0'
740	memcpy( &fmtstr, CFMTNP, sizeof(CFMTNP) );
741	int star = 1; // position before first '*'
742
743	// Insert flags into spaces before '*', from right to left.
744	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
745	fmtstr[star] = '%';
746
747	fmtstr[sizeof(CFMTNP)-2] = f.base; // sizeof includes '\0'
748	// printf( "%d %s\n", f.wd, &fmtstr[star] );
749	fmt( os, &fmtstr[star], f.wd, f.val );
750	return os;
751	} // ?\|?
752
753	void ?\|?( ostype & os, _Ostream_Manip(char) f ) { (ostype &)(os \| f); ends( os ); }
754	} // distribution
755
756	// ********************************* C string *********************************
757
758	forall( ostype & \| basic_ostream( ostype ) ) {
759	ostype & ?\|?( ostype & os, _Ostream_Manip(const char *) f ) {
760	if ( ! f.val ) return os; // null pointer ?
761
762	if ( f.base != 's' ) { // bespoke binary/octal/hex format
763	_Ostream_Manip(unsigned char) fmtuc @= { 0, f.wd, f.pc, f.base, {'\0'} };
764	fmtuc.flags.pc = f.flags.pc;
765	fmtuc.flags.nobsdp = f.flags.nobsdp;
766	for ( unsigned int i = 0; f.val[i] != '\0'; i += 1 ) {
767	fmtuc.val = f.val[i];
768	// os \| fmtuc \| nonl;
769	(ostype &)(os \| fmtuc);
770	} // for
771	return os;
772	} // if
773
774	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
775
776	#define SFMTNP "% * "
777	#define SFMTP "% . "
778	char fmtstr[sizeof(SFMTP)]; // sizeof includes '\0'
779	if ( ! f.flags.pc ) memcpy( &fmtstr, SFMTNP, sizeof(SFMTNP) );
780	else memcpy( &fmtstr, SFMTP, sizeof(SFMTP) );
781	int star = 1; // position before first '*'
782
783	// Insert flags into spaces before '*', from right to left.
784	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
785	fmtstr[star] = '%';
786
787	if ( ! f.flags.pc ) { // no precision
788	// printf( "%d %s\n", f.wd, &fmtstr[star] );
789	fmtstr[sizeof(SFMTNP)-2] = f.base; // sizeof includes '\0'
790	fmt( os, &fmtstr[star], f.wd, f.val );
791	} else { // precision
792	fmtstr[sizeof(SFMTP)-2] = f.base; // sizeof includes '\0'
793	// printf( "%d %d %s\n", f.wd, f.pc, &fmtstr[star] );
794	fmt( os, &fmtstr[star], f.wd, f.pc, f.val );
795	} // if
796	return os;
797	} // ?\|?
798
799	void ?\|?( ostype & os, _Ostream_Manip(const char *) f ) { (ostype &)(os \| f); ends( os ); }
800	} // distribution
801
802
803	// ********************************* istream *********************************
804
805
806	forall( istype & \| basic_istream( istype ) ) {
807	istype & ?\|?( istype & is, bool & b ) {
808	char val[6];
809	fmt( is, "%5s", val );
810	if ( strcmp( val, "true" ) == 0 ) b = true;
811	else if ( strcmp( val, "false" ) == 0 ) b = false;
812	else {
813	fprintf( stderr, "invalid Boolean constant\n" );
814	abort(); // cannot use abort stream
815	} // if
816	return is;
817	} // ?\|?
818	void ?\|?( istype & is, bool & b ) {
819	(istype &)(is \| b); ends( is );
820	} // ?\|?
821
822	istype & ?\|?( istype & is, char & c ) {
823	char temp;
824	for () {
825	fmt( is, "%c", &temp ); // must pass pointer through varg to fmt
826	// do not overwrite parameter with newline unless appropriate
827	if ( temp != '\n' \|\| getANL$( 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	} // distribution
1034
1035	// ********************************* manipulators *********************************
1036
1037	forall( istype & \| basic_istream( istype ) ) {
1038	istype & ?\|?( istype & is, _Istream_Cstr f ) {
1039	// skip xxx
1040	if ( ! f.s ) {
1041	// printf( "skip %s %d\n", f.scanset, f.wd );
1042	if ( f.wd == -1 ) fmt( is, f.scanset, "" ); // no input arguments
1043	else for ( f.wd ) fmt( is, "%*c" );
1044	return is;
1045	} // if
1046	size_t len = 0;
1047	if ( f.scanset ) len = strlen( f.scanset );
1048	char fmtstr[len + 16];
1049	int start = 1;
1050	fmtstr[0] = '%';
1051	if ( f.flags.ignore ) { fmtstr[1] = '*'; start += 1; }
1052	if ( f.wd != -1 ) { start += sprintf( &fmtstr[start], "%d", f.wd ); }
1053	// cstr %s, %s, %ws, %ws
1054	if ( ! f.scanset ) {
1055	fmtstr[start] = 's'; fmtstr[start + 1] = '\0';
1056	// printf( "cstr %s\n", fmtstr );
1057	fmt( is, fmtstr, f.s );
1058	return is;
1059	} // if
1060	// incl %[xxx], %[xxx], %w[xxx], %w[xxx]
1061	// excl %[^xxx], %[^xxx], %w[^xxx], %w[^xxx]
1062	fmtstr[start] = '['; start += 1;
1063	if ( f.flags.inex ) { fmtstr[start] = '^'; start += 1; }
1064	strcpy( &fmtstr[start], f.scanset ); // copy includes '\0'
1065	len += start;
1066	fmtstr[len] = ']'; fmtstr[len + 1] = '\0';
1067	// printf( "incl/excl %s\n", fmtstr );
1068	fmt( is, fmtstr, f.s );
1069	return is;
1070	} // ?\|?
1071	void ?\|?( istype & is, _Istream_Cstr f ) {
1072	(istype &)(is \| f); ends( is );
1073	} // ?\|?
1074
1075	istype & ?\|?( istype & is, _Istream_Char f ) {
1076	fmt( is, "%*c" ); // argument variable unused
1077	return is;
1078	} // ?\|?
1079	void ?\|?( istype & is, _Istream_Char f ) {
1080	(istype &)(is \| f); ends( is );
1081	} // ?\|?
1082	} // distribution
1083
1084	#define InputFMTImpl( T, CODE ) \
1085	forall( istype & \| basic_istream( istype ) ) { \
1086	istype & ?\|?( istype & is, _Istream_Manip(T) f ) { \
1087	enum { size = 16 }; \
1088	char fmtstr[size]; \
1089	if ( f.wd == -1 ) { \
1090	snprintf( fmtstr, size, "%%%s%s", f.ignore ? "*" : "", CODE ); \
1091	} else { \
1092	snprintf( fmtstr, size, "%%%s%d%s", f.ignore ? "*" : "", f.wd, CODE ); \
1093	} /* if */ \
1094	/* printf( "%d %s %p\n", f.wd, fmtstr, &f.val ); */ \
1095	fmt( is, fmtstr, &f.val ); \
1096	return is; \
1097	} /* ?\|? */ \
1098	void ?\|?( istype & is, _Istream_Manip(T) f ) { \
1099	(istype &)(is \| f); ends( is ); \
1100	} /* ?\|? */ \
1101	} // distribution
1102
1103	InputFMTImpl( signed char, "hhi" )
1104	InputFMTImpl( unsigned char, "hhi" )
1105	InputFMTImpl( signed short int, "hi" )
1106	InputFMTImpl( unsigned short int, "hi" )
1107	InputFMTImpl( signed int, "i" )
1108	InputFMTImpl( unsigned int, "i" )
1109	InputFMTImpl( signed long int, "li" )
1110	InputFMTImpl( unsigned long int, "li" )
1111	InputFMTImpl( signed long long int, "lli" )
1112	InputFMTImpl( unsigned long long int, "lli" )
1113
1114	InputFMTImpl( float, "f" )
1115	InputFMTImpl( double, "lf" )
1116	InputFMTImpl( long double, "Lf" )
1117
1118	forall( istype & \| basic_istream( istype ) ) {
1119	istype & ?\|?( istype & is, _Istream_Manip(float _Complex) fc ) {
1120	float re, im;
1121	_Istream_Manip(float) fmtuc @= { re, fc.wd, fc.ignore };
1122	is \| fmtuc;
1123	&fmtuc.val = &im;
1124	is \| fmtuc;
1125	if ( ! fc.ignore ) fc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1126	return is;
1127	} // ?\|?
1128	void ?\|?( istype & is, _Istream_Manip(float _Complex) fc ) {
1129	(istype &)(is \| fc); ends( is );
1130	} // ?\|?
1131
1132	istype & ?\|?( istype & is, _Istream_Manip(double _Complex) dc ) {
1133	double re, im;
1134	_Istream_Manip(double) fmtuc @= { re, dc.wd, dc.ignore };
1135	is \| fmtuc;
1136	&fmtuc.val = &im;
1137	is \| fmtuc;
1138	if ( ! dc.ignore ) dc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1139	return is;
1140	} // ?\|?
1141	void ?\|?( istype & is, _Istream_Manip(double _Complex) dc ) {
1142	(istype &)(is \| dc); ends( is );
1143	} // ?\|?
1144
1145	istype & ?\|?( istype & is, _Istream_Manip(long double _Complex) ldc ) {
1146	long double re, im;
1147	_Istream_Manip(long double) fmtuc @= { re, ldc.wd, ldc.ignore };
1148	is \| fmtuc;
1149	&fmtuc.val = &im;
1150	is \| fmtuc;
1151	if ( ! ldc.ignore ) ldc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1152	return is;
1153	} // ?\|?
1154	void ?\|?( istype & is, _Istream_Manip(long double _Complex) ldc ) {
1155	(istype &)(is \| ldc); ends( is );
1156	} // ?\|?
1157	} // distribution
1158
1159	// Local Variables: //
1160	// tab-width: 4 //
1161	// compile-command: "cfa iostream.cfa" //
1162	// End: //

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