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ast-experimental

Last change on this file since e6c9115 was fb907d3, checked in by Peter A. Buhr <pabuhr@…>, 3 years ago
add explicit cast of with function exp10
Property mode set to `100644`
File size: 39.1 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 : Mon Jan 9 09:27:58 2023
13	// Update Count : 1361
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	#pragma GCC visibility push(default)
35
36	// ********************************* ostream *********************************
37
38
39	forall( ostype & \| basic_ostream( ostype ) ) {
40	ostype & ?\|?( ostype & os, bool b ) {
41	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
42	fmt( os, "%s", b ? "true" : "false" );
43	return os;
44	} // ?\|?
45	void ?\|?( ostype & os, bool b ) {
46	(ostype &)(os \| b); ends( os );
47	} // ?\|?
48
49	ostype & ?\|?( ostype & os, char c ) {
50	fmt( os, "%c", c );
51	if ( c == '\n' ) setNL$( os, true );
52	return sepOff( os );
53	} // ?\|?
54	void ?\|?( ostype & os, char c ) {
55	(ostype &)(os \| c); ends( os );
56	} // ?\|?
57
58	ostype & ?\|?( ostype & os, signed char sc ) {
59	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
60	fmt( os, "%'hhd", sc );
61	return os;
62	} // ?\|?
63	void ?\|?( ostype & os, signed char sc ) {
64	(ostype &)(os \| sc); ends( os );
65	} // ?\|?
66
67	ostype & ?\|?( ostype & os, unsigned char usc ) {
68	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
69	fmt( os, "%'hhu", usc );
70	return os;
71	} // ?\|?
72	void ?\|?( ostype & os, unsigned char usc ) {
73	(ostype &)(os \| usc); ends( os );
74	} // ?\|?
75
76	ostype & ?\|?( ostype & os, short int si ) {
77	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
78	fmt( os, "%'hd", si );
79	return os;
80	} // ?\|?
81	void & ?\|?( ostype & os, short int si ) {
82	(ostype &)(os \| si); ends( os );
83	} // ?\|?
84
85	ostype & ?\|?( ostype & os, unsigned short int usi ) {
86	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
87	fmt( os, "%'hu", usi );
88	return os;
89	} // ?\|?
90	void & ?\|?( ostype & os, unsigned short int usi ) {
91	(ostype &)(os \| usi); ends( os );
92	} // ?\|?
93
94	ostype & ?\|?( ostype & os, int i ) {
95	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
96	fmt( os, "%'d", i );
97	return os;
98	} // ?\|?
99	void & ?\|?( ostype & os, int i ) {
100	(ostype &)(os \| i); ends( os );
101	} // ?\|?
102
103	ostype & ?\|?( ostype & os, unsigned int ui ) {
104	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
105	fmt( os, "%'u", ui );
106	return os;
107	} // ?\|?
108	void & ?\|?( ostype & os, unsigned int ui ) {
109	(ostype &)(os \| ui); ends( os );
110	} // ?\|?
111
112	ostype & ?\|?( ostype & os, long int li ) {
113	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
114	fmt( os, "%'ld", li );
115	return os;
116	} // ?\|?
117	void & ?\|?( ostype & os, long int li ) {
118	(ostype &)(os \| li); ends( os );
119	} // ?\|?
120
121	ostype & ?\|?( ostype & os, unsigned long int uli ) {
122	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
123	fmt( os, "%'lu", uli );
124	return os;
125	} // ?\|?
126	void & ?\|?( ostype & os, unsigned long int uli ) {
127	(ostype &)(os \| uli); ends( os );
128	} // ?\|?
129
130	ostype & ?\|?( ostype & os, long long int lli ) {
131	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
132	fmt( os, "%'lld", lli );
133	return os;
134	} // ?\|?
135	void & ?\|?( ostype & os, long long int lli ) {
136	(ostype &)(os \| lli); ends( os );
137	} // ?\|?
138
139	ostype & ?\|?( ostype & os, unsigned long long int ulli ) {
140	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
141	fmt( os, "%'llu", ulli );
142	return os;
143	} // ?\|?
144	void & ?\|?( ostype & os, unsigned long long int ulli ) {
145	(ostype &)(os \| ulli); ends( os );
146	} // ?\|?
147
148	#if defined( __SIZEOF_INT128__ )
149	// UINT64_MAX 18_446_744_073_709_551_615_ULL
150	#define P10_UINT64 10_000_000_000_000_000_000_ULL // 19 zeroes
151
152	static inline void base10_128( ostype & os, unsigned int128 val ) {
153	#if defined(__GNUC__) && __GNUC_PREREQ(7,0) // gcc version >= 7
154	if ( val > P10_UINT64 ) {
155	#else
156	if ( (uint64_t)(val >> 64) != 0 \|\| (uint64_t)val > P10_UINT64 ) { // patch gcc 5 & 6 -O3 bug
157	#endif // __GNUC_PREREQ(7,0)
158	base10_128( os, val / P10_UINT64 ); // recursive
159	fmt( os, "%.19lu", (uint64_t)(val % P10_UINT64) );
160	} else {
161	fmt( os, "%lu", (uint64_t)val );
162	} // if
163	} // base10_128
164
165	static inline void base10_128( ostype & os, int128 val ) {
166	if ( val < 0 ) {
167	fmt( os, "-" ); // leading negative sign
168	val = -val;
169	} // if
170	base10_128( os, (unsigned int128)val ); // print zero/positive value
171	} // base10_128
172
173	ostype & ?\|?( ostype & os, int128 llli ) {
174	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
175	base10_128( os, llli );
176	return os;
177	} // ?\|?
178	void & ?\|?( ostype & os, int128 llli ) {
179	(ostype &)(os \| llli); ends( os );
180	} // ?\|?
181
182	ostype & ?\|?( ostype & os, unsigned int128 ullli ) {
183	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
184	base10_128( os, ullli );
185	return os;
186	} // ?\|?
187	void & ?\|?( ostype & os, unsigned int128 ullli ) {
188	(ostype &)(os \| ullli); ends( os );
189	} // ?\|?
190	#endif // __SIZEOF_INT128__
191
192	#define PrintWithDP( os, format, val, ... ) \
193	{ \
194	enum { size = 48 }; \
195	char buf[size]; \
196	int len = snprintf( buf, size, format, ##__VA_ARGS__, val ); \
197	fmt( os, "%s", buf ); \
198	if ( isfinite( val ) ) { /* if number, print decimal point when no fraction or exponent */ \
199	for ( i; 0 ~ @ ) { \
200	if ( i == len ) { fmt( os, "." ); break; } \
201	if ( buf[i] == '.' \|\| buf[i] == 'e' \|\| buf[i] == 'E' ) break; /* decimal point or scientific ? */ \
202	} /* for */ \
203	} /* if */ \
204	}
205
206	ostype & ?\|?( ostype & os, float f ) {
207	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
208	PrintWithDP( os, "%'g", f );
209	return os;
210	} // ?\|?
211	void & ?\|?( ostype & os, float f ) {
212	(ostype &)(os \| f); ends( os );
213	} // ?\|?
214
215	ostype & ?\|?( ostype & os, double d ) {
216	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
217	PrintWithDP( os, "%'.*lg", d, DBL_DIG );
218	return os;
219	} // ?\|?
220	void & ?\|?( ostype & os, double d ) {
221	(ostype &)(os \| d); ends( os );
222	} // ?\|?
223
224	ostype & ?\|?( ostype & os, long double ld ) {
225	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
226	PrintWithDP( os, "%'.*Lg", ld, LDBL_DIG );
227	return os;
228	} // ?\|?
229	void & ?\|?( ostype & os, long double ld ) {
230	(ostype &)(os \| ld); ends( os );
231	} // ?\|?
232
233	ostype & ?\|?( ostype & os, float _Complex fc ) {
234	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
235	// os \| crealf( fc ) \| nonl;
236	PrintWithDP( os, "%'g", crealf( fc ) );
237	PrintWithDP( os, "%'+g", cimagf( fc ) );
238	fmt( os, "i" );
239	return os;
240	} // ?\|?
241	void & ?\|?( ostype & os, float _Complex fc ) {
242	(ostype &)(os \| fc); ends( os );
243	} // ?\|?
244
245	ostype & ?\|?( ostype & os, double _Complex dc ) {
246	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
247	// os \| creal( dc ) \| nonl;
248	PrintWithDP( os, "%'.*lg", creal( dc ), DBL_DIG );
249	PrintWithDP( os, "%'+.*lg", cimag( dc ), DBL_DIG );
250	fmt( os, "i" );
251	return os;
252	} // ?\|?
253	void & ?\|?( ostype & os, double _Complex dc ) {
254	(ostype &)(os \| dc); ends( os );
255	} // ?\|?
256
257	ostype & ?\|?( ostype & os, long double _Complex ldc ) {
258	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
259	// os \| creall( ldc ) \|\| nonl;
260	PrintWithDP( os, "%'.*Lg", creall( ldc ), LDBL_DIG );
261	PrintWithDP( os, "%'+.*Lg", cimagl( ldc ), LDBL_DIG );
262	fmt( os, "i" );
263	return os;
264	} // ?\|?
265	void & ?\|?( ostype & os, long double _Complex ldc ) {
266	(ostype &)(os \| ldc); ends( os );
267	} // ?\|?
268
269	ostype & ?\|?( ostype & os, const char s[] ) {
270	enum { Open = 1, Close, OpenClose };
271	static const unsigned char mask[256] @= {
272	// opening delimiters, no space after
273	['('] : Open, ['['] : Open, ['{'] : Open,
274	['='] : Open, ['$'] : Open, [(unsigned char)'£'] : Open, [(unsigned char)'¥'] : Open,
275	[(unsigned char)'¡'] : Open, [(unsigned char)'¿'] : Open, [(unsigned char)'«'] : Open,
276	// closing delimiters, no space before
277	[','] : Close, ['.'] : Close, [';'] : Close, ['!'] : Close, ['?'] : Close,
278	['%'] : Close, [(unsigned char)'¢'] : Close, [(unsigned char)'»'] : Close,
279	[')'] : Close, [']'] : Close, ['}'] : Close,
280	// opening-closing delimiters, no space before or after
281	['\''] : OpenClose, ['`'] : OpenClose, ['"'] : OpenClose, [':'] : OpenClose,
282	[' '] : OpenClose, ['\f'] : OpenClose, ['\n'] : OpenClose, ['\r'] : OpenClose, ['\t'] : OpenClose, ['\v'] : OpenClose, // isspace
283	}; // mask
284
285	if ( s == 0p ) { fmt( os, "%s", "0p" ); return os; } // null pointer
286	if ( s[0] == '\0' ) { sepOff( os ); return os; } // null string => no separator
287
288	// first character IS NOT spacing or closing punctuation => add left separator
289	unsigned char ch = s[0]; // must make unsigned
290	if ( sepPrt$( os ) && mask[ ch ] != Close && mask[ ch ] != OpenClose ) {
291	fmt( os, "%s", sepGetCur$( os ) );
292	} // if
293
294	// if string starts line, must reset to determine open state because separator is off
295	sepReset$( os ); // reset separator
296
297	// last character IS spacing or opening punctuation => turn off separator for next item
298	int len = strlen( s );
299	ch = s[len - 1]; // must make unsigned
300	fmt( os, "%s", s ); // fmt resets seperator, but reset it again
301	if ( sepPrt$( os ) && mask[ ch ] != Open && mask[ ch ] != OpenClose ) {
302	sepOn( os );
303	} else {
304	sepOff( os );
305	} // if
306	if ( ch == '\n' ) setNL$( os, true ); // check AFTER sepPrt$ call above as it resets NL flag
307	return os;
308	// return write( os, s, len );
309	} // ?\|?
310	void ?\|?( ostype & os, const char s[] ) {
311	(ostype &)(os \| s); ends( os );
312	} // ?\|?
313
314	// ostype & ?\|?( ostype & os, const char16_t * s ) {
315	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
316	// fmt( os, "%ls", s );
317	// return os;
318	// } // ?\|?
319
320	// #if ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 ) // char32_t == wchar_t => ambiguous
321	// ostype & ?\|?( ostype & os, const char32_t * s ) {
322	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
323	// fmt( os, "%ls", s );
324	// return os;
325	// } // ?\|?
326	// #endif // ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 )
327
328	// ostype & ?\|?( ostype & os, const wchar_t * s ) {
329	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
330	// fmt( os, "%ls", s );
331	// return os;
332	// } // ?\|?
333
334	ostype & ?\|?( ostype & os, const void * p ) {
335	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
336	fmt( os, "%p", p );
337	return os;
338	} // ?\|?
339	void ?\|?( ostype & os, const void * p ) {
340	(ostype &)(os \| p); ends( os );
341	} // ?\|?
342
343	// manipulators
344	ostype & ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) {
345	return manip( os );
346	} // ?\|?
347	void ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) {
348	manip( os );
349	if ( getPrt$( os ) ) ends( os ); // something printed ?
350	setPrt$( os, false ); // turn off
351	} // ?\|?
352
353	ostype & sep( ostype & os ) {
354	return (ostype &)(os \| sepGet( os ));
355	} // sep
356
357	ostype & sepTuple( ostype & os ) {
358	return os \| sepGetTuple( os );
359	} // sepTuple
360
361	ostype & nl( ostype & os ) {
362	(ostype &)(os \| '\n');
363	setPrt$( os, false ); // turn off
364	setNL$( os, true );
365	return sepOff( os ); // prepare for next line
366	} // nl
367
368	ostype & nonl( ostype & os ) {
369	setPrt$( os, false ); // turn off
370	return os;
371	} // nonl
372
373	ostype & sepOn( ostype & os ) {
374	sepOn( os ); // call void returning
375	return os;
376	} // sepOn
377
378	ostype & sepOff( ostype & os ) {
379	sepOff( os ); // call void returning
380	return os;
381	} // sepOff
382
383	ostype & sepEnable( ostype & os ) {
384	sepEnable( os ); // call void returning
385	return os;
386	} // sepEnable
387
388	ostype & sepDisable( ostype & os ) {
389	sepDisable( os ); // call void returning
390	return os;
391	} // sepDisable
392
393	ostype & nlOn( ostype & os ) {
394	nlOn( os ); // call void returning
395	return os;
396	} // nlOn
397
398	ostype & nlOff( ostype & os ) {
399	nlOff( os ); // call void returning
400	return os;
401	} // nlOff
402	} // distribution
403
404	// tuples
405	forall( ostype &, T, Params... \| writeable( T, ostype ) \| { ostype & ?\|?( ostype &, Params ); } ) {
406	ostype & ?\|?( ostype & os, T arg, Params rest ) {
407	(ostype &)(os \| arg); // print first argument
408	sepSetCur$( os, sepGetTuple( os ) ); // switch to tuple separator
409	(ostype &)(os \| rest); // print remaining arguments
410	sepSetCur$( os, sepGet( os ) ); // switch to regular separator
411	return os;
412	} // ?\|?
413	void ?\|?( ostype & os, T arg, Params rest ) {
414	// (ostype &)(?\|?( os, arg, rest )); ends( os );
415	(ostype &)(os \| arg); // print first argument
416	sepSetCur$( os, sepGetTuple( os ) ); // switch to tuple separator
417	(ostype &)(os \| rest); // print remaining arguments
418	sepSetCur$( os, sepGet( os ) ); // switch to regular separator
419	ends( os );
420	} // ?\|?
421	} // distribution
422
423	// writes the range [begin, end) to the given stream
424	forall( ostype &, elt_type \| writeable( elt_type, ostype ), iterator_type \| iterator( iterator_type, elt_type ) ) {
425	void write( iterator_type begin, iterator_type end, ostype & os ) {
426	void print( elt_type i ) { os \| i; }
427	for_each( begin, end, print );
428	} // ?\|?
429
430	void write_reverse( iterator_type begin, iterator_type end, ostype & os ) {
431	void print( elt_type i ) { os \| i; }
432	for_each_reverse( begin, end, print );
433	} // ?\|?
434	} // distribution
435
436	// ********************************* manipulators *********************************
437
438	// ********************************* integral *********************************
439
440	static const char * shortbin[] = { "0", "1", "10", "11", "100", "101", "110", "111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
441	static const char * longbin[] = { "0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
442
443	// Default prefix for non-decimal prints is 0b, 0, 0x.
444	#define IntegralFMTImpl( T, IFMTNP, IFMTP ) \
445	forall( ostype & \| basic_ostream( ostype ) ) { \
446	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
447	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) ); \
448	\
449	if ( f.base == 'b' \|\| f.base == 'B' ) { /* bespoke binary format */ \
450	int bits = high1( f.val ); /* position of most significant bit */ \
451	if ( bits == 0 ) bits = 1; /* 0 value => force one bit to print */ \
452	int spaces; \
453	if ( ! f.flags.left ) { /* right justified ? */ \
454	/* Note, base prefix then zero padding or spacing then prefix. */ \
455	if ( f.flags.pc ) { \
456	spaces = f.wd - f.pc; \
457	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
458	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
459	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
460	spaces = f.pc - bits; \
461	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
462	} else { \
463	spaces = f.wd - bits; \
464	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
465	if ( f.flags.pad0 ) { \
466	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
467	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
468	} else { \
469	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
470	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
471	} /* if */ \
472	} /* if */ \
473	} else { \
474	if ( ! f.flags.nobsdp ) fmt( os, "0%c", f.base ); \
475	if ( f.flags.pc ) { \
476	spaces = f.pc - bits; \
477	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
478	spaces = f.wd - f.pc; \
479	} else { /* pad0 flag ignored with left flag */ \
480	spaces = f.wd - bits; \
481	} /* if */ \
482	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
483	} /* if */ \
484	int shift = floor( bits - 1, 4 ); \
485	typeof( f.val ) temp = f.val; \
486	fmt( os, "%s", shortbin[(temp >> shift) & 0xf] ); \
487	for () { \
488	shift -= 4; \
489	if ( shift < 0 ) break; \
490	temp = f.val; \
491	fmt( os, "%s", longbin[(temp >> shift) & 0xf] ); \
492	} /* for */ \
493	if ( f.flags.left && spaces > 0 ) fmt( os, "%*s", spaces, " " ); \
494	return os; \
495	} /* if */ \
496	\
497	char fmtstr[sizeof(IFMTP)]; /* sizeof includes '\0' */ \
498	if ( ! f.flags.pc ) memcpy( &fmtstr, IFMTNP, sizeof(IFMTNP) ); \
499	else memcpy( &fmtstr, IFMTP, sizeof(IFMTP) ); \
500	int star = 5; /* position before first '' / \
501	\
502	/* Insert flags into spaces before '', from right to left. / \
503	if ( ! f.flags.nobsdp ) { fmtstr[star] = '#'; star -= 1; } \
504	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
505	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
506	if ( f.flags.pad0 && ! f.flags.pc ) { fmtstr[star] = '0'; star -= 1; } \
507	fmtstr[star] = '\''; star -= 1; /* locale */ \
508	fmtstr[star] = '%'; \
509	\
510	if ( ! f.flags.pc ) { /* no precision */ \
511	fmtstr[sizeof(IFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
512	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
513	fmt( os, &fmtstr[star], f.wd, f.val ); \
514	} else { /* precision */ \
515	fmtstr[sizeof(IFMTP)-2] = f.base; /* sizeof includes '\0' */ \
516	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
517	fmt( os, &fmtstr[star], f.wd, f.pc, f.val ); \
518	} /* if */ \
519	return os; \
520	} /* ?\|? */ \
521	void ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
522	(ostype &)(os \| f); ends( os ); \
523	} /* ?\|? */ \
524	} // distribution
525
526	IntegralFMTImpl( signed char, " hh ", " .*hh " )
527	IntegralFMTImpl( unsigned char, " hh ", " .*hh " )
528	IntegralFMTImpl( signed short int, " h ", " .*h " )
529	IntegralFMTImpl( unsigned short int, " h ", " .*h " )
530	IntegralFMTImpl( signed int, " * ", " . " )
531	IntegralFMTImpl( unsigned int, " * ", " . " )
532	IntegralFMTImpl( signed long int, " l ", " .*l " )
533	IntegralFMTImpl( unsigned long int, " l ", " .*l " )
534	IntegralFMTImpl( signed long long int, " ll ", " .*ll " )
535	IntegralFMTImpl( unsigned long long int, " ll ", " .*ll " )
536
537
538	#if defined( __SIZEOF_INT128__ )
539	// Default prefix for non-decimal prints is 0b, 0, 0x.
540	forall( ostype & \| basic_ostream( ostype ) )
541	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 ) {
542	int wd = 1; // f.wd is never 0 because 0 implies left-pad
543	if ( val > power ) { // subdivide value into printable 64-bit values
544	base_128( os, val / power, power, f, maxdig, bits, cnt + 1 ); // recursive
545	f.val = val % power;
546	if ( cnt == 1 && f.flags.left ) { wd = f.wd; f.wd = maxdig; } // copy f.wd and reset for printing middle chunk
547	// printf( "R val:%#lx(%lu) wd:%u pc:%u base:%c neg:%d pc:%d left:%d nobsdp:%d sign:%d pad0:%d\n",
548	// 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 );
549	(ostype &)(os \| f);
550	if ( cnt == 1 ) {
551	if ( f.flags.left ) { wd -= maxdig; f.wd = wd < 0 ? 1 : wd; } // update and restore f.wd for printing end chunk
552	sepOff( os ); // no seperator between chunks
553	} // if
554	} else { // print start chunk
555	f.val = val;
556	// f.pc is unsigned => use wd
557	if ( f.flags.pc && f.pc > maxdig * cnt ) { wd = f.pc - maxdig * cnt; f.pc = wd < 0 ? 0 : wd; }
558	else { f.flags.pc = false; f.pc = 0; }
559
560	if ( ! f.flags.left ) { // right justify
561	wd = f.wd - maxdig * cnt;
562	f.wd = wd < 0 ? 1 : wd;
563	wd = maxdig;
564	} else { // left justify
565	if ( cnt != 0 ) { // value >= 2^64 ?
566	unsigned int dig, bs = 0;
567	// compute size of prefix digits and base
568	if ( f.base == 'd' \|\| f.base == 'u' ) { // no base prefix
569	dig = ceil( log10( f.val ) ); // use floating-point
570	if ( f.base == 'd' && (f.flags.neg \|\| f.flags.sign) ) bs = 1; // sign ?
571	} else {
572	dig = ceiling_div( high1( f.val ), bits );
573	if ( ! f.flags.nobsdp ) { // base prefix ?
574	if ( f.base == 'o' ) {
575	// 0 prefix for octal is not added for precision with leading zero
576	if ( f.pc <= dig ) bs = 1; // 1 character prefix
577	} else bs = 2; // 2 character prefix
578	} // if
579	} // if
580	wd = f.wd - (f.pc > dig ? f.pc : dig) - bs; // precision > leading digits ?
581	if ( wd < 0 ) wd = 1;
582	f.wd = 1;
583	} // if
584	// all manipulators handled implicitly for value < 2^64
585	} // if
586	// prior checks ensure wd not negative
587
588	if ( f.flags.neg ) f.val = -f.val;
589	// printf( "L val:%#lx(%lu) wd:%u pc:%u base:%c neg:%d pc:%d left:%d nobsdp:%d sign:%d pad0:%d\n",
590	// 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 );
591	(ostype &)(os \| f);
592
593	// remaining middle and end chunks are padded with 0s on the left
594	if ( ! f.flags.left ) { f.flags.pad0 = true; f.flags.pc = false; } // left pad with 0s
595	else { f.pc = maxdig; f.flags.pc = true; } // left pad with precision
596
597	if ( cnt != 0 ) sepOff( os ); // no seperator between chunks
598	f.wd = wd; // reset f.wd for next chunk
599	f.flags.sign = false; // no leading +/- sign
600	f.flags.nobsdp = true; // no leading base prefix
601	} // if
602	} // base_128
603
604	#define IntegralFMTImpl128( T ) \
605	forall( ostype & \| basic_ostream( ostype ) ) { \
606	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
607	_Ostream_Manip(uint64_t) fmt; \
608	fmt.[wd, pc, base, all] = f.[wd, pc, base, all]; \
609	if ( f.base == 'b' \| f.base == 'B' ) { \
610	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 64, 1 ); \
611	} else if ( f.base == 'o' ) { \
612	base_128( os, f.val, (unsigned int128)1 << 63, fmt, 21, 3 ); \
613	} else if ( f.base == 'd' \|\| f.base == 'u' ) { \
614	if ( f.base == 'd' && f.val < 0 ) { f.val = -f.val; fmt.flags.neg = true; } \
615	base_128( os, f.val, (unsigned int128)10_000_000_000_000_000_000UL, fmt, 19, 0 ); \
616	} else { \
617	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 16, 4 ); \
618	} /* if */ \
619	return os; \
620	} /* ?\|? */ \
621	void ?\|?( ostype & os, _Ostream_Manip(T) f ) { (ostype &)(os \| f); ends( os ); } \
622	} // distribution
623
624	IntegralFMTImpl128( int128 )
625	IntegralFMTImpl128( unsigned int128 )
626	#endif // __SIZEOF_INT128__
627
628	// ********************************* floating point *********************************
629
630	static const char *suffixes[] = {
631	"y", "z", "a", "f", "p", "n", "u", "m", "",
632	"K", "M", "G", "T", "P", "E", "Z", "Y"
633	};
634	#define SUFFIXES_START (-24) /* Smallest power for which there is a suffix defined. */
635	#define SUFFIXES_END (SUFFIXES_START + (int)((sizeof(suffixes) / sizeof(char ) - 1) 3))
636
637	#define PrintWithDP2( os, format, ... ) \
638	{ \
639	if ( ! f.flags.eng ) { \
640	len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
641	if ( isfinite( f.val ) && ( f.pc != 0 \|\| ! f.flags.nobsdp ) ) { /* if number, print decimal point when no fraction or exponent */ \
642	for ( i = 0; i < len && buf[i] != '.' && buf[i] != 'e' && buf[i] != 'E'; i += 1 ); /* decimal point or scientific ? */ \
643	if ( i == len ) { \
644	if ( ! f.flags.left ) { \
645	buf[i] = '.'; buf[i + 1] = '\0'; \
646	if ( buf[0] == ' ' ) bufbeg = 1; /* decimal point within width */ \
647	} else { \
648	for ( i = 0; i < len && buf[i] != ' '; i += 1 ); /* trailing blank ? */ \
649	buf[i] = '.'; \
650	if ( i == len ) buf[i + 1] = '\0'; \
651	} /* if */ \
652	} /* if */ \
653	} /* if */ \
654	} else { \
655	int exp10, len2; \
656	eng( f.val, f.pc, exp10 ); /* changes arguments */ \
657	/* printf( "%g %d %d %d %s\n", f.val, f.wd, f.pc, exp10, format ); */ \
658	if ( ! f.flags.left && f.wd > 1 ) { \
659	/* Exponent size: 'e', optional minus sign, number of digits: log10(0) => undefined */ \
660	f.wd -= 1 + (exp10 < 0 ? 1 : 0) + lrint( floor( exp10 == 0 ? 0 : log10( abs( exp10 ) ) ) ) + 1; \
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", (int)exp10 /* ambiguity with function 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 & \| basic_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$( os ) ); \
694	char fmtstr[sizeof(DFMTP) + 8]; /* sizeof includes '\0' */ \
695	if ( ! f.flags.pc ) memcpy( &fmtstr, DFMTNP, sizeof(DFMTNP) ); \
696	else memcpy( &fmtstr, DFMTP, sizeof(DFMTP) ); \
697	int star = 5; /* position before first '' / \
698	\
699	/* Insert flags into spaces before '', from right to left. / \
700	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
701	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
702	if ( f.flags.pad0 ) { fmtstr[star] = '0'; star -= 1; } \
703	fmtstr[star] = '\''; star -= 1; /* locale */ \
704	fmtstr[star] = '%'; \
705	\
706	if ( ! f.flags.pc ) { /* no precision */ \
707	fmtstr[sizeof(DFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
708	/* printf( "%g %d %s\n", f.val, f.wd, &fmtstr[star] ); */ \
709	PrintWithDP2( os, &fmtstr[star], f.wd, f.val ) \
710	} else { /* precision */ \
711	fmtstr[sizeof(DFMTP)-2] = f.base; /* sizeof includes '\0' */ \
712	/* printf( "%g %d %d %s\n", f.val, f.wd, f.pc, &fmtstr[star] ); */ \
713	PrintWithDP2( os, &fmtstr[star], f.wd, f.pc, f.val ) \
714	} /* if */ \
715	return os; \
716	} /* ?\|? */ \
717	\
718	void ?\|?( ostype & os, _Ostream_Manip(T) f ) { (ostype &)(os \| f); ends( os ); } \
719	} // distribution
720
721	FloatingPointFMTImpl( double, " * ", " . " )
722	FloatingPointFMTImpl( long double, " L ", " .*L " )
723
724	// ********************************* character *********************************
725
726	forall( ostype & \| basic_ostream( ostype ) ) {
727	ostype & ?\|?( ostype & os, _Ostream_Manip(char) f ) {
728	if ( f.base != 'c' ) { // bespoke binary/octal/hex format
729	_Ostream_Manip(unsigned char) fmtuc @= { f.val, f.wd, f.pc, f.base, {'\0'} };
730	fmtuc.flags.pc = f.flags.pc;
731	fmtuc.flags.nobsdp = f.flags.nobsdp;
732	// os \| fmtuc \| nonl;
733	(ostype &)(os \| fmtuc);
734	return os;
735	} // if
736
737	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
738
739	#define CFMTNP "% * "
740	char fmtstr[sizeof(CFMTNP)]; // sizeof includes '\0'
741	memcpy( &fmtstr, CFMTNP, sizeof(CFMTNP) );
742	int star = 1; // position before first '*'
743
744	// Insert flags into spaces before '*', from right to left.
745	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
746	fmtstr[star] = '%';
747
748	fmtstr[sizeof(CFMTNP)-2] = f.base; // sizeof includes '\0'
749	// printf( "%d %s\n", f.wd, &fmtstr[star] );
750	fmt( os, &fmtstr[star], f.wd, f.val );
751	return os;
752	} // ?\|?
753
754	void ?\|?( ostype & os, _Ostream_Manip(char) f ) { (ostype &)(os \| f); ends( os ); }
755	} // distribution
756
757	// ********************************* C string *********************************
758
759	forall( ostype & \| basic_ostream( ostype ) ) {
760	ostype & ?\|?( ostype & os, _Ostream_Manip(const char *) f ) {
761	if ( ! f.val ) return os; // null pointer ?
762
763	if ( f.base != 's' ) { // bespoke binary/octal/hex format
764	_Ostream_Manip(unsigned char) fmtuc @= { 0, f.wd, f.pc, f.base, {'\0'} };
765	fmtuc.flags.pc = f.flags.pc;
766	fmtuc.flags.nobsdp = f.flags.nobsdp;
767	for ( i; 0 ~ @ : @; f.val[i] != '\0' ) {
768	fmtuc.val = f.val[i];
769	// os \| fmtuc \| nonl;
770	(ostype &)(os \| fmtuc);
771	} // for
772	return os;
773	} // if
774
775	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
776
777	#define SFMTNP "% * "
778	#define SFMTP "% . "
779	char fmtstr[sizeof(SFMTP)]; // sizeof includes '\0'
780	if ( ! f.flags.pc ) memcpy( &fmtstr, SFMTNP, sizeof(SFMTNP) );
781	else memcpy( &fmtstr, SFMTP, sizeof(SFMTP) );
782	int star = 1; // position before first '*'
783
784	// Insert flags into spaces before '*', from right to left.
785	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
786	fmtstr[star] = '%';
787
788	if ( ! f.flags.pc ) { // no precision
789	// printf( "%d %s\n", f.wd, &fmtstr[star] );
790	fmtstr[sizeof(SFMTNP)-2] = f.base; // sizeof includes '\0'
791	fmt( os, &fmtstr[star], f.wd, f.val );
792	} else { // precision
793	fmtstr[sizeof(SFMTP)-2] = f.base; // sizeof includes '\0'
794	// printf( "%d %d %s\n", f.wd, f.pc, &fmtstr[star] );
795	fmt( os, &fmtstr[star], f.wd, f.pc, f.val );
796	} // if
797	return os;
798	} // ?\|?
799
800	void ?\|?( ostype & os, _Ostream_Manip(const char *) f ) { (ostype &)(os \| f); ends( os ); }
801	} // distribution
802
803
804	// ********************************* istream *********************************
805
806
807	forall( istype & \| basic_istream( istype ) ) {
808	istype & ?\|?( istype & is, bool & b ) {
809	char val[6];
810	fmt( is, "%5s", val );
811	if ( strcmp( val, "true" ) == 0 ) b = true;
812	else if ( strcmp( val, "false" ) == 0 ) b = false;
813	else {
814	fprintf( stderr, "invalid Boolean constant\n" );
815	abort(); // cannot use abort stream
816	} // if
817	return is;
818	} // ?\|?
819	void ?\|?( istype & is, bool & b ) {
820	(istype &)(is \| b); ends( is );
821	} // ?\|?
822
823	istype & ?\|?( istype & is, char & c ) {
824	char temp;
825	for () {
826	fmt( is, "%c", &temp ); // must pass pointer through varg to fmt
827	// do not overwrite parameter with newline unless appropriate
828	if ( temp != '\n' \|\| getANL$( is ) ) { c = temp; break; }
829	if ( eof( is ) ) break;
830	} // for
831	return is;
832	} // ?\|?
833	void ?\|?( istype & is, char & c ) {
834	(istype &)(is \| c); ends( is );
835	} // ?\|?
836
837	istype & ?\|?( istype & is, signed char & sc ) {
838	fmt( is, "%hhi", &sc );
839	return is;
840	} // ?\|?
841	void ?\|?( istype & is, signed char & sc ) {
842	(istype &)(is \| sc); ends( is );
843	} // ?\|?
844
845	istype & ?\|?( istype & is, unsigned char & usc ) {
846	fmt( is, "%hhi", &usc );
847	return is;
848	} // ?\|?
849	void ?\|?( istype & is, unsigned char & usc ) {
850	(istype &)(is \| usc); ends( is );
851	} // ?\|?
852
853	istype & ?\|?( istype & is, short int & si ) {
854	fmt( is, "%hi", &si );
855	return is;
856	} // ?\|?
857	void ?\|?( istype & is, short int & si ) {
858	(istype &)(is \| si); ends( is );
859	} // ?\|?
860
861	istype & ?\|?( istype & is, unsigned short int & usi ) {
862	fmt( is, "%hi", &usi );
863	return is;
864	} // ?\|?
865	void ?\|?( istype & is, unsigned short int & usi ) {
866	(istype &)(is \| usi); ends( is );
867	} // ?\|?
868
869	istype & ?\|?( istype & is, int & i ) {
870	fmt( is, "%i", &i );
871	return is;
872	} // ?\|?
873	void ?\|?( istype & is, int & i ) {
874	(istype &)(is \| i); ends( is );
875	} // ?\|?
876
877	istype & ?\|?( istype & is, unsigned int & ui ) {
878	fmt( is, "%i", &ui );
879	return is;
880	} // ?\|?
881	void ?\|?( istype & is, unsigned int & ui ) {
882	(istype &)(is \| ui); ends( is );
883	} // ?\|?
884
885	istype & ?\|?( istype & is, long int & li ) {
886	fmt( is, "%li", &li );
887	return is;
888	} // ?\|?
889	void ?\|?( istype & is, long int & li ) {
890	(istype &)(is \| li); ends( is );
891	} // ?\|?
892
893	istype & ?\|?( istype & is, unsigned long int & ulli ) {
894	fmt( is, "%li", &ulli );
895	return is;
896	} // ?\|?
897	void ?\|?( istype & is, unsigned long int & ulli ) {
898	(istype &)(is \| ulli); ends( is );
899	} // ?\|?
900
901	istype & ?\|?( istype & is, long long int & lli ) {
902	fmt( is, "%lli", &lli );
903	return is;
904	} // ?\|?
905	void ?\|?( istype & is, long long int & lli ) {
906	(istype &)(is \| lli); ends( is );
907	} // ?\|?
908
909	istype & ?\|?( istype & is, unsigned long long int & ulli ) {
910	fmt( is, "%lli", &ulli );
911	return is;
912	} // ?\|?
913	void & ?\|?( istype & is, unsigned long long int & ulli ) {
914	(istype &)(is \| ulli); ends( is );
915	} // ?\|?
916
917	#if defined( __SIZEOF_INT128__ )
918	istype & ?\|?( istype & is, int128 & llli ) {
919	return (istype &)(is \| (unsigned int128 &)llli);
920	} // ?\|?
921	void ?\|?( istype & is, int128 & llli ) {
922	(istype &)(is \| llli); ends( is );
923	} // ?\|?
924
925	istype & ?\|?( istype & is, unsigned int128 & ullli ) {
926	char s[40];
927	bool sign = false;
928
929	if ( fmt( is, " %[-]", s ) == 1 ) sign = true; // skip whitespace, negative sign ?
930	// If the input is too large, the value returned is undefined. If there is no input, no value is returned
931	if ( fmt( is, "%39[0-9]%*[0-9]", s ) == 1 ) { // take first 39 characters, ignore remaining
932	ullli = 0;
933	for ( i; 0 ~ @ : @; s[i] != '\0' ) {
934	ullli = ullli * 10 + s[i] - '0';
935	} // for
936	if ( sign ) ullli = -ullli;
937	} else if ( sign ) ungetc( is, '-' ); // return minus when no digits
938	return is;
939	} // ?\|?
940	void ?\|?( istype & is, unsigned int128 & ullli ) {
941	(istype &)(is \| ullli); ends( is );
942	} // ?\|?
943	#endif // __SIZEOF_INT128__
944
945	istype & ?\|?( istype & is, float & f ) {
946	fmt( is, "%f", &f );
947	return is;
948	} // ?\|?
949	void ?\|?( istype & is, float & f ) {
950	(istype &)(is \| f); ends( is );
951	} // ?\|?
952
953	istype & ?\|?( istype & is, double & d ) {
954	fmt( is, "%lf", &d );
955	return is;
956	} // ?\|?
957	void ?\|?( istype & is, double & d ) {
958	(istype &)(is \| d); ends( is );
959	} // ?\|?
960
961	istype & ?\|?( istype & is, long double & ld ) {
962	fmt( is, "%Lf", &ld );
963	return is;
964	} // ?\|?
965	void ?\|?( istype & is, long double & ld ) {
966	(istype &)(is \| ld); ends( is );
967	} // ?\|?
968
969	istype & ?\|?( istype & is, float _Complex & fc ) {
970	float re, im;
971	fmt( is, "%f%fi", &re, &im );
972	fc = re + im * _Complex_I;
973	return is;
974	} // ?\|?
975	void ?\|?( istype & is, float _Complex & fc ) {
976	(istype &)(is \| fc); ends( is );
977	} // ?\|?
978
979	istype & ?\|?( istype & is, double _Complex & dc ) {
980	double re, im;
981	fmt( is, "%lf%lfi", &re, &im );
982	dc = re + im * _Complex_I;
983	return is;
984	} // ?\|?
985	void ?\|?( istype & is, double _Complex & dc ) {
986	(istype &)(is \| dc); ends( is );
987	} // ?\|?
988
989	istype & ?\|?( istype & is, long double _Complex & ldc ) {
990	long double re, im;
991	fmt( is, "%Lf%Lfi", &re, &im );
992	ldc = re + im * _Complex_I;
993	return is;
994	} // ?\|?
995	void ?\|?( istype & is, long double _Complex & ldc ) {
996	(istype &)(is \| ldc); ends( is );
997	} // ?\|?
998
999	// istype & ?\|?( istype & is, const char fmt[] ) {
1000	// fmt( is, fmt, "" );
1001	// return is;
1002	// } // ?\|?
1003
1004	istype & ?\|?( istype & is, char s[] ) {
1005	fmt( is, "%s", s );
1006	return is;
1007	} // ?\|?
1008	void ?\|?( istype & is, char s[] ) {
1009	(istype &)(is \| s); ends( is );
1010	} // ?\|?
1011
1012	// manipulators
1013	istype & ?\|?( istype & is, istype & (* manip)( istype & ) ) {
1014	return manip( is );
1015	} // ?\|?
1016	void ?\|?( istype & is, istype & (* manip)( istype & ) ) {
1017	manip( is ); ends( is );
1018	} // ?\|?
1019
1020	istype & nl( istype & is ) {
1021	fmt( is, "%*[^\n]" ); // ignore characters to newline
1022	return is;
1023	} // nl
1024
1025	istype & nlOn( istype & is ) {
1026	nlOn( is ); // call void returning
1027	return is;
1028	} // nlOn
1029
1030	istype & nlOff( istype & is ) {
1031	nlOff( is ); // call void returning
1032	return is;
1033	} // nlOff
1034	} // distribution
1035
1036	// ********************************* manipulators *********************************
1037
1038	forall( istype & \| basic_istream( istype ) ) {
1039	istype & ?\|?( istype & is, _Istream_Cstr f ) {
1040	// skip xxx
1041	if ( ! f.s ) {
1042	// printf( "skip %s %d\n", f.scanset, f.wd );
1043	if ( f.wd == -1 ) fmt( is, f.scanset, "" ); // no input arguments
1044	else for ( f.wd ) fmt( is, "%*c" );
1045	return is;
1046	} // if
1047	size_t len = 0;
1048	if ( f.scanset ) len = strlen( f.scanset );
1049	char fmtstr[len + 16];
1050	int start = 1;
1051	fmtstr[0] = '%';
1052	if ( f.flags.ignore ) { fmtstr[1] = '*'; start += 1; }
1053	if ( f.wd != -1 ) { start += sprintf( &fmtstr[start], "%d", f.wd ); }
1054	// cstr %s, %s, %ws, %ws
1055	if ( ! f.scanset ) {
1056	fmtstr[start] = 's'; fmtstr[start + 1] = '\0';
1057	// printf( "cstr %s\n", fmtstr );
1058	fmt( is, fmtstr, f.s );
1059	return is;
1060	} // if
1061	// incl %[xxx], %[xxx], %w[xxx], %w[xxx]
1062	// excl %[^xxx], %[^xxx], %w[^xxx], %w[^xxx]
1063	fmtstr[start] = '['; start += 1;
1064	if ( f.flags.inex ) { fmtstr[start] = '^'; start += 1; }
1065	strcpy( &fmtstr[start], f.scanset ); // copy includes '\0'
1066	len += start;
1067	fmtstr[len] = ']'; fmtstr[len + 1] = '\0';
1068	// printf( "incl/excl %s\n", fmtstr );
1069	fmt( is, fmtstr, f.s );
1070	return is;
1071	} // ?\|?
1072	void ?\|?( istype & is, _Istream_Cstr f ) {
1073	(istype &)(is \| f); ends( is );
1074	} // ?\|?
1075
1076	istype & ?\|?( istype & is, _Istream_Char f ) {
1077	fmt( is, "%*c" ); // argument variable unused
1078	return is;
1079	} // ?\|?
1080	void ?\|?( istype & is, _Istream_Char f ) {
1081	(istype &)(is \| f); ends( is );
1082	} // ?\|?
1083	} // distribution
1084
1085	#define InputFMTImpl( T, CODE ) \
1086	forall( istype & \| basic_istream( istype ) ) { \
1087	istype & ?\|?( istype & is, _Istream_Manip(T) f ) { \
1088	enum { size = 16 }; \
1089	char fmtstr[size]; \
1090	if ( f.wd == -1 ) { \
1091	snprintf( fmtstr, size, "%%%s%s", f.ignore ? "*" : "", CODE ); \
1092	} else { \
1093	snprintf( fmtstr, size, "%%%s%d%s", f.ignore ? "*" : "", f.wd, CODE ); \
1094	} /* if */ \
1095	/* printf( "%d %s %p\n", f.wd, fmtstr, &f.val ); */ \
1096	fmt( is, fmtstr, &f.val ); \
1097	return is; \
1098	} /* ?\|? */ \
1099	void ?\|?( istype & is, _Istream_Manip(T) f ) { \
1100	(istype &)(is \| f); ends( is ); \
1101	} /* ?\|? */ \
1102	} // distribution
1103
1104	InputFMTImpl( signed char, "hhi" )
1105	InputFMTImpl( unsigned char, "hhi" )
1106	InputFMTImpl( signed short int, "hi" )
1107	InputFMTImpl( unsigned short int, "hi" )
1108	InputFMTImpl( signed int, "i" )
1109	InputFMTImpl( unsigned int, "i" )
1110	InputFMTImpl( signed long int, "li" )
1111	InputFMTImpl( unsigned long int, "li" )
1112	InputFMTImpl( signed long long int, "lli" )
1113	InputFMTImpl( unsigned long long int, "lli" )
1114
1115	InputFMTImpl( float, "f" )
1116	InputFMTImpl( double, "lf" )
1117	InputFMTImpl( long double, "Lf" )
1118
1119	forall( istype & \| basic_istream( istype ) ) {
1120	istype & ?\|?( istype & is, _Istream_Manip(float _Complex) fc ) {
1121	float re, im;
1122	_Istream_Manip(float) fmtuc @= { re, fc.wd, fc.ignore };
1123	is \| fmtuc;
1124	&fmtuc.val = &im;
1125	is \| fmtuc;
1126	if ( ! fc.ignore ) fc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1127	return is;
1128	} // ?\|?
1129	void ?\|?( istype & is, _Istream_Manip(float _Complex) fc ) {
1130	(istype &)(is \| fc); ends( is );
1131	} // ?\|?
1132
1133	istype & ?\|?( istype & is, _Istream_Manip(double _Complex) dc ) {
1134	double re, im;
1135	_Istream_Manip(double) fmtuc @= { re, dc.wd, dc.ignore };
1136	is \| fmtuc;
1137	&fmtuc.val = &im;
1138	is \| fmtuc;
1139	if ( ! dc.ignore ) dc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1140	return is;
1141	} // ?\|?
1142	void ?\|?( istype & is, _Istream_Manip(double _Complex) dc ) {
1143	(istype &)(is \| dc); ends( is );
1144	} // ?\|?
1145
1146	istype & ?\|?( istype & is, _Istream_Manip(long double _Complex) ldc ) {
1147	long double re, im;
1148	_Istream_Manip(long double) fmtuc @= { re, ldc.wd, ldc.ignore };
1149	is \| fmtuc;
1150	&fmtuc.val = &im;
1151	is \| fmtuc;
1152	if ( ! ldc.ignore ) ldc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1153	return is;
1154	} // ?\|?
1155	void ?\|?( istype & is, _Istream_Manip(long double _Complex) ldc ) {
1156	(istype &)(is \| ldc); ends( is );
1157	} // ?\|?
1158	} // distribution
1159
1160	// Local Variables: //
1161	// tab-width: 4 //
1162	// compile-command: "cfa iostream.cfa" //
1163	// End: //

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