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iostream.cfa@ 39fc03e

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

Last change on this file since 39fc03e was ffa48a8, checked in by Peter A. Buhr <pabuhr@…>, 5 years ago
patch bug causing print of -0 for gcc 5 & 6
Property mode set to `100644`
File size: 40.6 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 Jul 20 15:00:37 2020
13	// Update Count : 1124
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 <math.h> // isfinite
23	#include <complex.h> // creal, cimag
24	//#include <string.h> // strlen, strcmp
25	extern "C" {
26	extern size_t strlen (const char *__s) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));
27	extern int strcmp (const char __s1, const char __s2) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));
28	extern char strcpy (char __restrict __dest, const char *__restrict __src) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
29	extern void memcpy (void __restrict __dest, const void *__restrict __src, size_t __n) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
30	} // extern "C"
31
32	#include <bitmanip.hfa> // high1
33
34
35	// ********************************* ostream *********************************
36
37
38	forall( dtype ostype \| ostream( ostype ) ) {
39	ostype & ?\|?( ostype & os, zero_t ) {
40	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
41	fmt( os, "%d", 0n );
42	return os;
43	} // ?\|?
44	void ?\|?( ostype & os, zero_t z ) {
45	(ostype &)(os \| z); ends( os );
46	} // ?\|?
47
48	ostype & ?\|?( ostype & os, one_t ) {
49	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
50	fmt( os, "%d", 1n );
51	return os;
52	} // ?\|?
53	void ?\|?( ostype & os, one_t o ) {
54	(ostype &)(os \| o); ends( os );
55	} // ?\|?
56
57	ostype & ?\|?( ostype & os, bool b ) {
58	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
59	fmt( os, "%s", b ? "true" : "false" );
60	return os;
61	} // ?\|?
62	void ?\|?( ostype & os, bool b ) {
63	(ostype &)(os \| b); ends( os );
64	} // ?\|?
65
66	ostype & ?\|?( ostype & os, char c ) {
67	fmt( os, "%c", c );
68	if ( c == '\n' ) $setNL( os, true );
69	return sepOff( os );
70	} // ?\|?
71	void ?\|?( ostype & os, char c ) {
72	(ostype &)(os \| c); ends( os );
73	} // ?\|?
74
75	ostype & ?\|?( ostype & os, signed char sc ) {
76	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
77	fmt( os, "%hhd", sc );
78	return os;
79	} // ?\|?
80	void ?\|?( ostype & os, signed char sc ) {
81	(ostype &)(os \| sc); ends( os );
82	} // ?\|?
83
84	ostype & ?\|?( ostype & os, unsigned char usc ) {
85	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
86	fmt( os, "%hhu", usc );
87	return os;
88	} // ?\|?
89	void ?\|?( ostype & os, unsigned char usc ) {
90	(ostype &)(os \| usc); ends( os );
91	} // ?\|?
92
93	ostype & ?\|?( ostype & os, short int si ) {
94	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
95	fmt( os, "%hd", si );
96	return os;
97	} // ?\|?
98	void & ?\|?( ostype & os, short int si ) {
99	(ostype &)(os \| si); ends( os );
100	} // ?\|?
101
102	ostype & ?\|?( ostype & os, unsigned short int usi ) {
103	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
104	fmt( os, "%hu", usi );
105	return os;
106	} // ?\|?
107	void & ?\|?( ostype & os, unsigned short int usi ) {
108	(ostype &)(os \| usi); ends( os );
109	} // ?\|?
110
111	ostype & ?\|?( ostype & os, int i ) {
112	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
113	fmt( os, "%d", i );
114	return os;
115	} // ?\|?
116	void & ?\|?( ostype & os, int i ) {
117	(ostype &)(os \| i); ends( os );
118	} // ?\|?
119
120	ostype & ?\|?( ostype & os, unsigned int ui ) {
121	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
122	fmt( os, "%u", ui );
123	return os;
124	} // ?\|?
125	void & ?\|?( ostype & os, unsigned int ui ) {
126	(ostype &)(os \| ui); ends( os );
127	} // ?\|?
128
129	ostype & ?\|?( ostype & os, long int li ) {
130	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
131	fmt( os, "%ld", li );
132	return os;
133	} // ?\|?
134	void & ?\|?( ostype & os, long int li ) {
135	(ostype &)(os \| li); ends( os );
136	} // ?\|?
137
138	ostype & ?\|?( ostype & os, unsigned long int uli ) {
139	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
140	fmt( os, "%lu", uli );
141	return os;
142	} // ?\|?
143	void & ?\|?( ostype & os, unsigned long int uli ) {
144	(ostype &)(os \| uli); ends( os );
145	} // ?\|?
146
147	ostype & ?\|?( ostype & os, long long int lli ) {
148	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
149	fmt( os, "%lld", lli );
150	return os;
151	} // ?\|?
152	void & ?\|?( ostype & os, long long int lli ) {
153	(ostype &)(os \| lli); ends( os );
154	} // ?\|?
155
156	ostype & ?\|?( ostype & os, unsigned long long int ulli ) {
157	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
158	fmt( os, "%llu", ulli );
159	return os;
160	} // ?\|?
161	void & ?\|?( ostype & os, unsigned long long int ulli ) {
162	(ostype &)(os \| ulli); ends( os );
163	} // ?\|?
164
165	#if defined( __SIZEOF_INT128__ )
166	// UINT64_MAX 18_446_744_073_709_551_615_ULL
167	#define P10_UINT64 10_000_000_000_000_000_000_ULL // 19 zeroes
168
169	static inline void base10_128( ostype & os, unsigned int128 val ) {
170	#if defined(__GNUC__) && __GNUC_PREREQ(7,0) // gcc version >= 7
171	if ( val > P10_UINT64 ) {
172	#else
173	if ( (uint64_t)(val >> 64) != 0 \|\| (uint64_t)val > P10_UINT64 ) { // patch gcc 5 & 6 -O3 bug
174	#endif // __GNUC_PREREQ(7,0)
175	base10_128( os, val / P10_UINT64 ); // recursive
176	fmt( os, "%.19lu", (uint64_t)(val % P10_UINT64) );
177	} else {
178	fmt( os, "%lu", (uint64_t)val );
179	} // if
180	} // base10_128
181
182	static inline void base10_128( ostype & os, int128 val ) {
183	if ( val < 0 ) {
184	fmt( os, "-" ); // leading negative sign
185	val = -val;
186	} // if
187	base10_128( os, (unsigned int128)val ); // print zero/positive value
188	} // base10_128
189
190	ostype & ?\|?( ostype & os, int128 llli ) {
191	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
192	base10_128( os, llli );
193	return os;
194	} // ?\|?
195	void & ?\|?( ostype & os, int128 llli ) {
196	(ostype &)(os \| llli); ends( os );
197	} // ?\|?
198
199	ostype & ?\|?( ostype & os, unsigned int128 ullli ) {
200	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
201	base10_128( os, ullli );
202	return os;
203	} // ?\|?
204	void & ?\|?( ostype & os, unsigned int128 ullli ) {
205	(ostype &)(os \| ullli); ends( os );
206	} // ?\|?
207	#endif // __SIZEOF_INT128__
208
209	#define PrintWithDP( os, format, val, ... ) \
210	{ \
211	enum { size = 48 }; \
212	char buf[size]; \
213	int len = snprintf( buf, size, format, ##__VA_ARGS__, val ); \
214	fmt( os, "%s", buf ); \
215	if ( isfinite( val ) ) { /* if number, always print decimal point */ \
216	for ( int i = 0;; i += 1 ) { \
217	if ( i == len ) { fmt( os, "." ); break; } \
218	if ( buf[i] == '.' ) break; \
219	} /* for */ \
220	} /* if */ \
221	}
222
223	ostype & ?\|?( ostype & os, float f ) {
224	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
225	PrintWithDP( os, "%g", f );
226	return os;
227	} // ?\|?
228	void & ?\|?( ostype & os, float f ) {
229	(ostype &)(os \| f); ends( os );
230	} // ?\|?
231
232	ostype & ?\|?( ostype & os, double d ) {
233	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
234	PrintWithDP( os, "%.*lg", d, DBL_DIG );
235	return os;
236	} // ?\|?
237	void & ?\|?( ostype & os, double d ) {
238	(ostype &)(os \| d); ends( os );
239	} // ?\|?
240
241	ostype & ?\|?( ostype & os, long double ld ) {
242	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
243	PrintWithDP( os, "%.*Lg", ld, LDBL_DIG );
244	return os;
245	} // ?\|?
246	void & ?\|?( ostype & os, long double ld ) {
247	(ostype &)(os \| ld); ends( os );
248	} // ?\|?
249
250	ostype & ?\|?( ostype & os, float _Complex fc ) {
251	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
252	// os \| crealf( fc ) \| nonl;
253	PrintWithDP( os, "%g", crealf( fc ) );
254	PrintWithDP( os, "%+g", cimagf( fc ) );
255	fmt( os, "i" );
256	return os;
257	} // ?\|?
258	void & ?\|?( ostype & os, float _Complex fc ) {
259	(ostype &)(os \| fc); ends( os );
260	} // ?\|?
261
262	ostype & ?\|?( ostype & os, double _Complex dc ) {
263	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
264	// os \| creal( dc ) \| nonl;
265	PrintWithDP( os, "%.*lg", creal( dc ), DBL_DIG );
266	PrintWithDP( os, "%+.*lg", cimag( dc ), DBL_DIG );
267	fmt( os, "i" );
268	return os;
269	} // ?\|?
270	void & ?\|?( ostype & os, double _Complex dc ) {
271	(ostype &)(os \| dc); ends( os );
272	} // ?\|?
273
274	ostype & ?\|?( ostype & os, long double _Complex ldc ) {
275	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
276	// os \| creall( ldc ) \|\| nonl;
277	PrintWithDP( os, "%.*Lg", creall( ldc ), LDBL_DIG );
278	PrintWithDP( os, "%+.*Lg", cimagl( ldc ), LDBL_DIG );
279	fmt( os, "i" );
280	return os;
281	} // ?\|?
282	void & ?\|?( ostype & os, long double _Complex ldc ) {
283	(ostype &)(os \| ldc); ends( os );
284	} // ?\|?
285
286	ostype & ?\|?( ostype & os, const char str[] ) {
287	enum { Open = 1, Close, OpenClose };
288	static const unsigned char mask[256] @= {
289	// opening delimiters, no space after
290	['('] : Open, ['['] : Open, ['{'] : Open,
291	['='] : Open, ['$'] : Open, [(unsigned char)'£'] : Open, [(unsigned char)'¥'] : Open,
292	[(unsigned char)'¡'] : Open, [(unsigned char)'¿'] : Open, [(unsigned char)'«'] : Open,
293	// closing delimiters, no space before
294	[','] : Close, ['.'] : Close, [';'] : Close, ['!'] : Close, ['?'] : Close,
295	['%'] : Close, [(unsigned char)'¢'] : Close, [(unsigned char)'»'] : Close,
296	[')'] : Close, [']'] : Close, ['}'] : Close,
297	// opening-closing delimiters, no space before or after
298	['\''] : OpenClose, ['`'] : OpenClose, ['"'] : OpenClose, [':'] : OpenClose,
299	[' '] : OpenClose, ['\f'] : OpenClose, ['\n'] : OpenClose, ['\r'] : OpenClose, ['\t'] : OpenClose, ['\v'] : OpenClose, // isspace
300	}; // mask
301
302	if ( str[0] == '\0' ) { sepOff( os ); return os; } // null string => no separator
303
304	// first character IS NOT spacing or closing punctuation => add left separator
305	unsigned char ch = str[0]; // must make unsigned
306	if ( $sepPrt( os ) && mask[ ch ] != Close && mask[ ch ] != OpenClose ) {
307	fmt( os, "%s", $sepGetCur( os ) );
308	} // if
309
310	// if string starts line, must reset to determine open state because separator is off
311	$sepReset( os ); // reset separator
312
313	// last character IS spacing or opening punctuation => turn off separator for next item
314	size_t len = strlen( str );
315	ch = str[len - 1]; // must make unsigned
316	if ( $sepPrt( os ) && mask[ ch ] != Open && mask[ ch ] != OpenClose ) {
317	sepOn( os );
318	} else {
319	sepOff( os );
320	} // if
321	if ( ch == '\n' ) $setNL( os, true ); // check AFTER $sepPrt call above as it resets NL flag
322	return write( os, str, len );
323	} // ?\|?
324
325	void ?\|?( ostype & os, const char str[] ) {
326	(ostype &)(os \| str); ends( os );
327	} // ?\|?
328
329	// ostype & ?\|?( ostype & os, const char16_t * str ) {
330	// if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
331	// fmt( os, "%ls", str );
332	// return os;
333	// } // ?\|?
334
335	// #if ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 ) // char32_t == wchar_t => ambiguous
336	// ostype & ?\|?( ostype & os, const char32_t * str ) {
337	// if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
338	// fmt( os, "%ls", str );
339	// return os;
340	// } // ?\|?
341	// #endif // ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 )
342
343	// ostype & ?\|?( ostype & os, const wchar_t * str ) {
344	// if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
345	// fmt( os, "%ls", str );
346	// return os;
347	// } // ?\|?
348
349	ostype & ?\|?( ostype & os, const void * p ) {
350	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
351	fmt( os, "%p", p );
352	return os;
353	} // ?\|?
354	void ?\|?( ostype & os, const void * p ) {
355	(ostype &)(os \| p); ends( os );
356	} // ?\|?
357
358	// manipulators
359	ostype & ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) {
360	(ostype &)(manip( os ));
361	return os;
362	} // ?\|?
363	void ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) {
364	(ostype &)(manip( os ));
365	if ( $getPrt( os ) ) ends( os ); // something printed ?
366	$setPrt( os, false ); // turn off
367	} // ?\|?
368
369	ostype & sep( ostype & os ) {
370	return (ostype &)(os \| sepGet( os ));
371	} // sep
372
373	ostype & sepTuple( ostype & os ) {
374	return os \| sepGetTuple( os );
375	} // sepTuple
376
377	ostype & nl( ostype & os ) {
378	(ostype &)(os \| '\n');
379	$setPrt( os, false ); // turn off
380	$setNL( os, true );
381	flush( os );
382	return sepOff( os ); // prepare for next line
383	} // nl
384
385	ostype & nonl( ostype & os ) {
386	$setPrt( os, false ); // turn off
387	return os;
388	} // nonl
389
390	ostype & sepOn( ostype & os ) {
391	sepOn( os ); // call void returning
392	return os;
393	} // sepOn
394
395	ostype & sepOff( ostype & os ) {
396	sepOff( os ); // call void returning
397	return os;
398	} // sepOff
399
400	ostype & sepEnable( ostype & os ) {
401	sepEnable( os ); // call void returning
402	return os;
403	} // sepEnable
404
405	ostype & sepDisable( ostype & os ) {
406	sepDisable( os ); // call void returning
407	return os;
408	} // sepDisable
409
410	ostype & nlOn( ostype & os ) {
411	nlOn( os ); // call void returning
412	return os;
413	} // nlOn
414
415	ostype & nlOff( ostype & os ) {
416	nlOff( os ); // call void returning
417	return os;
418	} // nlOff
419	} // distribution
420
421	// tuples
422	forall( dtype ostype, otype T, ttype Params \| writeable( T, ostype ) \| { ostype & ?\|?( ostype &, Params ); } ) {
423	ostype & ?\|?( ostype & os, T arg, Params rest ) {
424	(ostype &)(os \| arg); // print first argument
425	$sepSetCur( os, sepGetTuple( os ) ); // switch to tuple separator
426	(ostype &)(os \| rest); // print remaining arguments
427	$sepSetCur( os, sepGet( os ) ); // switch to regular separator
428	return os;
429	} // ?\|?
430	void ?\|?( ostype & os, T arg, Params rest ) {
431	// (ostype &)(?\|?( os, arg, rest )); ends( os );
432	(ostype &)(os \| arg); // print first argument
433	$sepSetCur( os, sepGetTuple( os ) ); // switch to tuple separator
434	(ostype &)(os \| rest); // print remaining arguments
435	$sepSetCur( os, sepGet( os ) ); // switch to regular separator
436	ends( os );
437	} // ?\|?
438	} // distribution
439
440	// writes the range [begin, end) to the given stream
441	forall( dtype ostype, otype elt_type \| writeable( elt_type, ostype ), otype iterator_type \| iterator( iterator_type, elt_type ) ) {
442	void write( iterator_type begin, iterator_type end, ostype & os ) {
443	void print( elt_type i ) { os \| i; }
444	for_each( begin, end, print );
445	} // ?\|?
446
447	void write_reverse( iterator_type begin, iterator_type end, ostype & os ) {
448	void print( elt_type i ) { os \| i; }
449	for_each_reverse( begin, end, print );
450	} // ?\|?
451	} // distribution
452
453	// ********************************* manipulators *********************************
454
455	// ********************************* integral *********************************
456
457	static const char * shortbin[] = { "0", "1", "10", "11", "100", "101", "110", "111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
458	static const char * longbin[] = { "0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
459
460	// Default prefix for non-decimal prints is 0b, 0, 0x.
461	#define IntegralFMTImpl( T, IFMTNP, IFMTP ) \
462	forall( dtype ostype \| ostream( ostype ) ) { \
463	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
464	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) ); \
465	\
466	if ( f.base == 'b' \|\| f.base == 'B' ) { /* bespoke binary format */ \
467	int bits = high1( f.val ); /* position of most significant bit */ \
468	if ( bits == 0 ) bits = 1; /* 0 value => force one bit to print */ \
469	int spaces; \
470	if ( ! f.flags.left ) { /* right justified ? */ \
471	/* Note, base prefix then zero padding or spacing then prefix. */ \
472	if ( f.flags.pc ) { \
473	spaces = f.wd - f.pc; \
474	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
475	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
476	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
477	spaces = f.pc - bits; \
478	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
479	} else { \
480	spaces = f.wd - bits; \
481	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
482	if ( f.flags.pad0 ) { \
483	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
484	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
485	} else { \
486	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
487	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
488	} /* if */ \
489	} /* if */ \
490	} else { \
491	if ( ! f.flags.nobsdp ) fmt( os, "0%c", f.base ); \
492	if ( f.flags.pc ) { \
493	spaces = f.pc - bits; \
494	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
495	spaces = f.wd - f.pc; \
496	} else { /* pad0 flag ignored with left flag */ \
497	spaces = f.wd - bits; \
498	} /* if */ \
499	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
500	} /* if */ \
501	int shift = floor( bits - 1, 4 ); \
502	typeof( f.val ) temp = f.val; \
503	fmt( os, "%s", shortbin[(temp >> shift) & 0xf] ); \
504	for () { \
505	shift -= 4; \
506	if ( shift < 0 ) break; \
507	temp = f.val; \
508	fmt( os, "%s", longbin[(temp >> shift) & 0xf] ); \
509	} /* for */ \
510	if ( f.flags.left && spaces > 0 ) fmt( os, "%*s", spaces, " " ); \
511	return os; \
512	} /* if */ \
513	\
514	char fmtstr[sizeof(IFMTP)]; /* sizeof includes '\0' */ \
515	if ( ! f.flags.pc ) memcpy( &fmtstr, IFMTNP, sizeof(IFMTNP) ); \
516	else memcpy( &fmtstr, IFMTP, sizeof(IFMTP) ); \
517	int star = 4; /* position before first '' / \
518	\
519	/* Insert flags into spaces before '', from right to left. / \
520	if ( ! f.flags.nobsdp ) { fmtstr[star] = '#'; star -= 1; } \
521	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
522	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
523	if ( f.flags.pad0 && ! f.flags.pc ) { fmtstr[star] = '0'; star -= 1; } \
524	fmtstr[star] = '%'; \
525	\
526	if ( ! f.flags.pc ) { /* no precision */ \
527	fmtstr[sizeof(IFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
528	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
529	fmt( os, &fmtstr[star], f.wd, f.val ); \
530	} else { /* precision */ \
531	fmtstr[sizeof(IFMTP)-2] = f.base; /* sizeof includes '\0' */ \
532	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
533	fmt( os, &fmtstr[star], f.wd, f.pc, f.val ); \
534	} /* if */ \
535	return os; \
536	} /* ?\|? */ \
537	void ?\|?( ostype & os, _Ostream_Manip(T) f ) { (ostype &)(os \| f); ends( os ); } \
538	} // distribution
539
540	IntegralFMTImpl( signed char, "% hh ", "% .*hh " )
541	IntegralFMTImpl( unsigned char, "% hh ", "% .*hh " )
542	IntegralFMTImpl( signed short int, "% h ", "% .*h " )
543	IntegralFMTImpl( unsigned short int, "% h ", "% .*h " )
544	IntegralFMTImpl( signed int, "% * ", "% . " )
545	IntegralFMTImpl( unsigned int, "% * ", "% . " )
546	IntegralFMTImpl( signed long int, "% l ", "% .*l " )
547	IntegralFMTImpl( unsigned long int, "% l ", "% .*l " )
548	IntegralFMTImpl( signed long long int, "% ll ", "% .*ll " )
549	IntegralFMTImpl( unsigned long long int, "% ll ", "% .*ll " )
550
551	#if 0
552	#if defined( __SIZEOF_INT128__ )
553	// Default prefix for non-decimal prints is 0b, 0, 0x.
554	#define IntegralFMTImpl128( T, SIGNED, CODE, IFMTNP, IFMTP ) \
555	forall( dtype ostype \| ostream( ostype ) ) \
556	static void base10_128( ostype & os, _Ostream_Manip(T) f ) { \
557	if ( f.val > UINT64_MAX ) { \
558	unsigned long long int lsig = f.val % P10_UINT64; \
559	f.val /= P10_UINT64; /* msig */ \
560	base10_128( os, f ); /* recursion */ \
561	_Ostream_Manip(unsigned long long int) fmt @= { lsig, 0, 19, 'u', { .all : 0 } }; \
562	fmt.flags.nobsdp = true; \
563	/* printf( "fmt1 %c %lld %d\n", fmt.base, fmt.val, fmt.all ); */ \
564	sepOff( os ); \
565	(ostype &)(os \| fmt); \
566	} else { \
567	/* printf( "fmt2 %c %lld %d\n", f.base, (unsigned long long int)f.val, f.all ); */ \
568	_Ostream_Manip(SIGNED long long int) fmt @= { (SIGNED long long int)f.val, f.wd, f.pc, f.base, { .all : f.all } }; \
569	(ostype &)(os \| fmt); \
570	} /* if */ \
571	} /* base10_128 */ \
572	forall( dtype ostype \| ostream( ostype ) ) { \
573	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
574	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) ); \
575	\
576	if ( f.base == 'b' \| f.base == 'B' \| f.base == 'o' \| f.base == 'x' \| f.base == 'X' ) { \
577	unsigned long long int msig = (unsigned long long int)(f.val >> 64); \
578	unsigned long long int lsig = (unsigned long long int)(f.val); \
579	_Ostream_Manip(SIGNED long long int) fmt @= { msig, f.wd, f.pc, f.base, { .all : f.all } }; \
580	_Ostream_Manip(unsigned long long int) fmt2 @= { lsig, 0, 0, f.base, { .all : 0 } }; \
581	if ( msig == 0 ) { \
582	fmt.val = lsig; \
583	(ostype &)(os \| fmt); \
584	} else { \
585	fmt2.flags.pad0 = fmt2.flags.nobsdp = true; \
586	if ( f.base == 'b' \| f.base == 'B' ) { \
587	if ( fmt.flags.pc && fmt.pc > 64 ) fmt.pc -= 64; else { fmt.flags.pc = false; fmt.pc = 0; } \
588	if ( fmt.flags.left ) { \
589	fmt.flags.left = false; \
590	fmt.wd = 0; \
591	/* printf( "L %llo %llo %llo %d %d '%c' %x\n", msig, lsig, fmt.val, fmt.wd, fmt.pc, fmt.base, fmt.all ); */ \
592	fmt2.flags.left = true; \
593	int msigd = high1( msig ); \
594	fmt2.wd = f.wd - (fmt.pc > msigd ? fmt.pc : msigd); \
595	if ( ! fmt.flags.nobsdp ) fmt2.wd -= 2; /* compensate for 0b base specifier */ \
596	if ( (int)fmt2.wd < 64 ) fmt2.wd = 64; /* cast deals with negative value */ \
597	fmt2.flags.pc = true; fmt2.pc = 64; \
598	} else { \
599	if ( fmt.wd > 64 ) fmt.wd -= 64; \
600	else fmt.wd = 1; \
601	/* printf( "R %llo %llo %llo %d %d '%c' %x\n", msig, lsig, fmt.val, fmt.wd, fmt.pc, fmt.base, fmt.all ); */ \
602	fmt2.wd = 64; \
603	} /* if */ \
604	/* printf( "C %llo %d %d '%c' %x\n", fmt2.val, fmt2.wd, fmt2.pc, fmt2.base, fmt2.all ); */ \
605	(ostype &)(os \| fmt \| "" \| fmt2); \
606	} else if ( f.base == 'o' ) { \
607	if ( fmt.flags.pc && fmt.pc > 22 ) fmt.pc -= 22; else { fmt.flags.pc = false; fmt.pc = 0; } \
608	fmt.val = (unsigned long long int)fmt.val >> 2; \
609	fmt2.val = ((msig & 0x3) << 1) + ((lsig & 0x8000000000000000U) != 0); \
610	if ( fmt.flags.left ) { \
611	fmt.flags.left = false; \
612	fmt.wd = 0; \
613	/* printf( "L %llo %llo %llo %d %d '%c' %x %llo %d %d '%c' %x\n", msig, lsig, fmt.val, fmt.wd, fmt.pc, fmt.base, fmt.all, fmt2.val, fmt2.wd, fmt2.pc, fmt2.base, fmt2.all ); */ \
614	(ostype &)(os \| fmt \| "" \| fmt2); \
615	sepOff( os ); \
616	fmt2.flags.left = true; \
617	int msigd = ceiling( high1( fmt.val ), 3 ); \
618	fmt2.wd = f.wd - (fmt.pc > msigd ? fmt.pc : msigd); \
619	if ( ! fmt.flags.nobsdp ) fmt2.wd -= 1; /* compensate for 0 base specifier */ \
620	if ( (int)fmt2.wd < 21 ) fmt2.wd = 21; /* cast deals with negative value */ \
621	fmt2.flags.pc = true; fmt2.pc = 21; \
622	} else { \
623	if ( fmt.wd > 22 ) fmt.wd -= 22; \
624	else fmt.wd = 1; \
625	/* printf( "R %llo %llo %llo %d %d '%c' %x %llo %d %d '%c' %x\n", msig, lsig, fmt.val, fmt.wd, fmt.pc, fmt.base, fmt.all, fmt2.val, fmt2.wd, fmt2.pc, fmt2.base, fmt2.all ); */ \
626	(ostype &)(os \| fmt \| "" \| fmt2); \
627	sepOff( os ); \
628	fmt2.wd = 21; \
629	} /* if */ \
630	fmt2.val = lsig & 0x7fffffffffffffffU; \
631	/* printf( "\nC %llo %d %d '%c' %x\n", fmt2.val, fmt2.wd, fmt2.pc, fmt2.base, fmt2.all ); */ \
632	(ostype &)(os \| fmt2); \
633	} else { /* f.base == 'x' \| f.base == 'X' */ \
634	if ( fmt.flags.pc && fmt.pc > 16 ) fmt.pc -= 16; else { fmt.flags.pc = false; fmt.pc = 0; } \
635	if ( fmt.flags.left ) { \
636	fmt.flags.left = false; \
637	fmt.wd = 0; \
638	/* printf( "L %llo %llo %llo %d %d '%c' %x\n", msig, lsig, fmt.val, fmt.wd, fmt.pc, fmt.base, fmt.all ); */ \
639	fmt2.flags.left = true; \
640	int msigd = high1( msig ); \
641	fmt2.wd = f.wd - (fmt.pc > msigd ? fmt.pc : msigd); \
642	if ( ! fmt.flags.nobsdp ) fmt2.wd -= 2; /* compensate for 0x base specifier */ \
643	if ( (int)fmt2.wd < 16 ) fmt2.wd = 16; /* cast deals with negative value */ \
644	fmt2.flags.pc = true; fmt2.pc = 16; \
645	} else { \
646	if ( fmt.wd > 16 ) fmt.wd -= 16; \
647	else fmt.wd = 1; \
648	/* printf( "R %llo %llo %llo %d %d '%c' %x\n", msig, lsig, fmt.val, fmt.wd, fmt.pc, fmt.base, fmt.all ); */ \
649	fmt2.wd = 16; \
650	} /* if */ \
651	/* printf( "C %llo %d %d '%c' %x\n", fmt2.val, fmt2.wd, fmt2.pc, fmt2.base, fmt2.all ); */ \
652	(ostype &)(os \| fmt \| "" \| fmt2); \
653	} /* if */ \
654	} /* if */ \
655	} else { \
656	if ( CODE == 'd' ) { \
657	if ( f.val < 0 ) { fmt( os, "-" ); sepOff( os ); f.val = -f.val; f.flags.sign = false; } \
658	} /* if */ \
659	base10_128( os, f ); \
660	} /* if */ \
661	return os; \
662	} /* ?\|? */ \
663	void ?\|?( ostype & os, _Ostream_Manip(T) f ) { (ostype &)(os \| f); ends( os ); } \
664	} // distribution
665
666	IntegralFMTImpl128( int128, signed, 'd', "% ll ", "% .*ll " )
667	IntegralFMTImpl128( unsigned int128, unsigned, 'u', "% ll ", "% .*ll " )
668	#endif // __SIZEOF_INT128__
669	#endif // 0
670
671	#if 1
672	#if defined( __SIZEOF_INT128__ )
673	// Default prefix for non-decimal prints is 0b, 0, 0x.
674	forall( dtype ostype \| ostream( ostype ) )
675	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 ) {
676	int wd = 1; // f.wd is never 0 because 0 implies left-pad
677	if ( val > power ) { // subdivide value into printable 64-bit values
678	base_128( os, val / power, power, f, maxdig, bits, cnt + 1 ); // recursive
679	f.val = val % power;
680	if ( cnt == 1 && f.flags.left ) { wd = f.wd; f.wd = maxdig; } // copy f.wd and reset for printing middle chunk
681	// printf( "R val:%#lx(%lu) wd:%u pc:%u base:%c neg:%d pc:%d left:%d nobsdp:%d sign:%d pad0:%d\n",
682	// 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 );
683	(ostype &)(os \| f);
684	if ( cnt == 1 ) {
685	if ( f.flags.left ) { wd -= maxdig; f.wd = wd < 0 ? 1 : wd; } // update and restore f.wd for printing end chunk
686	sepOff( os ); // no seperator between chunks
687	} // if
688	} else { // print start chunk
689	f.val = val;
690	// f.pc is unsigned => use wd
691	if ( f.flags.pc && f.pc > maxdig * cnt ) { wd = f.pc - maxdig * cnt; f.pc = wd < 0 ? 0 : wd; }
692	else { f.flags.pc = false; f.pc = 0; }
693
694	if ( ! f.flags.left ) { // right justify
695	wd = f.wd - maxdig * cnt;
696	f.wd = wd < 0 ? 1 : wd;
697	wd = maxdig;
698	} else { // left justify
699	if ( cnt != 0 ) { // value >= 2^64 ?
700	unsigned int dig, bs = 0;
701	// compute size of prefix digits and base
702	if ( f.base == 'd' \|\| f.base == 'u' ) { // no base prefix
703	dig = ceil( log10( f.val ) ); // use floating-point
704	if ( f.base == 'd' && (f.flags.neg \|\| f.flags.sign) ) bs = 1; // sign ?
705	} else {
706	dig = ceiling( high1( f.val ), bits );
707	if ( ! f.flags.nobsdp ) { // base prefix ?
708	if ( f.base == 'o' ) {
709	// 0 prefix for octal is not added for precision with leading zero
710	if ( f.pc <= dig ) bs = 1; // 1 character prefix
711	} else bs = 2; // 2 character prefix
712	} // if
713	} // if
714	wd = f.wd - (f.pc > dig ? f.pc : dig) - bs; // precision > leading digits ?
715	if ( wd < 0 ) wd = 1;
716	f.wd = 1;
717	} // if
718	// all manipulators handled implicitly for value < 2^64
719	} // if
720	// prior checks ensure wd not negative
721
722	if ( f.flags.neg ) f.val = -f.val;
723	// printf( "L val:%#lx(%lu) wd:%u pc:%u base:%c neg:%d pc:%d left:%d nobsdp:%d sign:%d pad0:%d\n",
724	// 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 );
725	(ostype &)(os \| f);
726
727	// remaining middle and end chunks are padded with 0s on the left
728	if ( ! f.flags.left ) { f.flags.pad0 = true; f.flags.pc = false; } // left pad with 0s
729	else { f.pc = maxdig; f.flags.pc = true; } // left pad with precision
730
731	if ( cnt != 0 ) sepOff( os ); // no seperator between chunks
732	f.wd = wd; // reset f.wd for next chunk
733	f.flags.sign = false; // no leading +/- sign
734	f.flags.nobsdp = true; // no leading base prefix
735	} // if
736	} // base_128
737
738	#define IntegralFMTImpl128( T ) \
739	forall( dtype ostype \| ostream( ostype ) ) { \
740	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
741	_Ostream_Manip(uint64_t) fmt; \
742	fmt.[wd, pc, base, all] = f.[wd, pc, base, all]; \
743	if ( f.base == 'b' \| f.base == 'B' ) { \
744	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 64, 1 ); \
745	} else if ( f.base == 'o' ) { \
746	base_128( os, f.val, (unsigned int128)1 << 63, fmt, 21, 3 ); \
747	} else if ( f.base == 'd' \|\| f.base == 'u' ) { \
748	if ( f.base == 'd' && f.val < 0 ) { f.val = -f.val; fmt.flags.neg = true; } \
749	base_128( os, f.val, (unsigned int128)10_000_000_000_000_000_000UL, fmt, 19, 0 ); \
750	} else { \
751	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 16, 4 ); \
752	} /* if */ \
753	return os; \
754	} /* ?\|? */ \
755	void ?\|?( ostype & os, _Ostream_Manip(T) f ) { (ostype &)(os \| f); ends( os ); } \
756	} // distribution
757
758	IntegralFMTImpl128( int128 )
759	IntegralFMTImpl128( unsigned int128 )
760	#endif // __SIZEOF_INT128__
761	#endif // 0
762
763	// ********************************* floating point *********************************
764
765	#define PrintWithDP2( os, format, val, ... ) \
766	{ \
767	enum { size = 48 }; \
768	char buf[size]; \
769	int bufbeg = 0, i, len = snprintf( buf, size, format, ##__VA_ARGS__, val ); \
770	if ( isfinite( val ) && (f.base != 'g' \|\| f.pc != 0) ) { /* if number, print decimal point */ \
771	for ( i = 0; i < len && buf[i] != '.' && buf[i] != 'e' && buf[i] != 'E'; i += 1 ); /* decimal point or scientific ? */ \
772	if ( i == len && ! f.flags.nobsdp ) { \
773	if ( ! f.flags.left ) { \
774	buf[i] = '.'; buf[i + 1] = '\0'; \
775	if ( buf[0] == ' ' ) bufbeg = 1; /* decimal point within width */ \
776	} else { \
777	for ( i = 0; i < len && buf[i] != ' '; i += 1 ); /* trailing blank ? */ \
778	buf[i] = '.'; \
779	if ( i == len ) buf[i + 1] = '\0'; \
780	} /* if */ \
781	} /* if */ \
782	} /* if */ \
783	fmt( os, "%s", &buf[bufbeg] ); \
784	}
785
786	#define FloatingPointFMTImpl( T, DFMTNP, DFMTP ) \
787	forall( dtype ostype \| ostream( ostype ) ) { \
788	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
789	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) ); \
790	char fmtstr[sizeof(DFMTP)]; /* sizeof includes '\0' */ \
791	if ( ! f.flags.pc ) memcpy( &fmtstr, DFMTNP, sizeof(DFMTNP) ); \
792	else memcpy( &fmtstr, DFMTP, sizeof(DFMTP) ); \
793	int star = 4; /* position before first '' / \
794	\
795	/* Insert flags into spaces before '', from right to left. / \
796	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
797	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
798	if ( f.flags.pad0 ) { fmtstr[star] = '0'; star -= 1; } \
799	fmtstr[star] = '%'; \
800	\
801	if ( ! f.flags.pc ) { /* no precision */ \
802	fmtstr[sizeof(DFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
803	/* printf( "%g %d %s\n", f.val, f.wd, &fmtstr[star]); */ \
804	PrintWithDP2( os, &fmtstr[star], f.val, f.wd ) \
805	} else { /* precision */ \
806	fmtstr[sizeof(DFMTP)-2] = f.base; /* sizeof includes '\0' */ \
807	/* printf( "%g %d %d %s\n", f.val, f.wd, f.pc, &fmtstr[star] ); */ \
808	PrintWithDP2( os, &fmtstr[star], f.val, f.wd, f.pc ) \
809	} /* if */ \
810	return os; \
811	} /* ?\|? */ \
812	\
813	void ?\|?( ostype & os, _Ostream_Manip(T) f ) { (ostype &)(os \| f); ends( os ); } \
814	} // distribution
815
816	FloatingPointFMTImpl( double, "% * ", "% . " )
817	FloatingPointFMTImpl( long double, "% L ", "% .*L " )
818
819	// ********************************* character *********************************
820
821	forall( dtype ostype \| ostream( ostype ) ) {
822	ostype & ?\|?( ostype & os, _Ostream_Manip(char) f ) {
823	if ( f.base != 'c' ) { // bespoke binary/octal/hex format
824	_Ostream_Manip(unsigned char) fmtuc @= { f.val, f.wd, f.pc, f.base, {'\0'} };
825	fmtuc.flags.pc = f.flags.pc;
826	fmtuc.flags.nobsdp = f.flags.nobsdp;
827	// os \| fmtuc \| nonl;
828	(ostype &)(os \| fmtuc);
829	return os;
830	} // if
831
832	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
833
834	#define CFMTNP "% * "
835	char fmtstr[sizeof(CFMTNP)]; // sizeof includes '\0'
836	memcpy( &fmtstr, CFMTNP, sizeof(CFMTNP) );
837	int star = 1; // position before first '*'
838
839	// Insert flags into spaces before '*', from right to left.
840	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
841	fmtstr[star] = '%';
842
843	fmtstr[sizeof(CFMTNP)-2] = f.base; // sizeof includes '\0'
844	// printf( "%d %s\n", f.wd, &fmtstr[star] );
845	fmt( os, &fmtstr[star], f.wd, f.val );
846	return os;
847	} // ?\|?
848
849	void ?\|?( ostype & os, _Ostream_Manip(char) f ) { (ostype &)(os \| f); ends( os ); }
850	} // distribution
851
852	// ********************************* C string *********************************
853
854	forall( dtype ostype \| ostream( ostype ) ) {
855	ostype & ?\|?( ostype & os, _Ostream_Manip(const char *) f ) {
856	if ( ! f.val ) return os; // null pointer ?
857
858	if ( f.base != 's' ) { // bespoke binary/octal/hex format
859	_Ostream_Manip(unsigned char) fmtuc @= { 0, f.wd, f.pc, f.base, {'\0'} };
860	fmtuc.flags.pc = f.flags.pc;
861	fmtuc.flags.nobsdp = f.flags.nobsdp;
862	for ( unsigned int i = 0; f.val[i] != '\0'; i += 1 ) {
863	fmtuc.val = f.val[i];
864	// os \| fmtuc \| nonl;
865	(ostype &)(os \| fmtuc);
866	} // for
867	return os;
868	} // if
869
870	if ( $sepPrt( os ) ) fmt( os, "%s", $sepGetCur( os ) );
871
872	#define SFMTNP "% * "
873	#define SFMTP "% . "
874	char fmtstr[sizeof(SFMTP)]; // sizeof includes '\0'
875	if ( ! f.flags.pc ) memcpy( &fmtstr, SFMTNP, sizeof(SFMTNP) );
876	else memcpy( &fmtstr, SFMTP, sizeof(SFMTP) );
877	int star = 1; // position before first '*'
878
879	// Insert flags into spaces before '*', from right to left.
880	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
881	fmtstr[star] = '%';
882
883	if ( ! f.flags.pc ) { // no precision
884	// printf( "%d %s\n", f.wd, &fmtstr[star] );
885	fmtstr[sizeof(SFMTNP)-2] = f.base; // sizeof includes '\0'
886	fmt( os, &fmtstr[star], f.wd, f.val );
887	} else { // precision
888	fmtstr[sizeof(SFMTP)-2] = f.base; // sizeof includes '\0'
889	// printf( "%d %d %s\n", f.wd, f.pc, &fmtstr[star] );
890	fmt( os, &fmtstr[star], f.wd, f.pc, f.val );
891	} // if
892	return os;
893	} // ?\|?
894
895	void ?\|?( ostype & os, _Ostream_Manip(const char *) f ) { (ostype &)(os \| f); ends( os ); }
896	} // distribution
897
898
899	// ********************************* istream *********************************
900
901
902	forall( dtype istype \| istream( istype ) ) {
903	istype & ?\|?( istype & is, bool & b ) {
904	char val[6];
905	fmt( is, "%5s", val );
906	if ( strcmp( val, "true" ) == 0 ) b = true;
907	else if ( strcmp( val, "false" ) == 0 ) b = false;
908	else {
909	fprintf( stderr, "invalid Boolean constant\n" );
910	abort(); // cannot use abort stream
911	} // if
912	return is;
913	} // ?\|?
914
915	istype & ?\|?( istype & is, char & c ) {
916	char temp;
917	for () {
918	fmt( is, "%c", &temp ); // must pass pointer through varg to fmt
919	// do not overwrite parameter with newline unless appropriate
920	if ( temp != '\n' \|\| getANL( is ) ) { c = temp; break; }
921	if ( eof( is ) ) break;
922	} // for
923	return is;
924	} // ?\|?
925
926	istype & ?\|?( istype & is, signed char & sc ) {
927	fmt( is, "%hhi", &sc );
928	return is;
929	} // ?\|?
930
931	istype & ?\|?( istype & is, unsigned char & usc ) {
932	fmt( is, "%hhi", &usc );
933	return is;
934	} // ?\|?
935
936	istype & ?\|?( istype & is, short int & si ) {
937	fmt( is, "%hi", &si );
938	return is;
939	} // ?\|?
940
941	istype & ?\|?( istype & is, unsigned short int & usi ) {
942	fmt( is, "%hi", &usi );
943	return is;
944	} // ?\|?
945
946	istype & ?\|?( istype & is, int & i ) {
947	fmt( is, "%i", &i );
948	return is;
949	} // ?\|?
950
951	istype & ?\|?( istype & is, unsigned int & ui ) {
952	fmt( is, "%i", &ui );
953	return is;
954	} // ?\|?
955
956	istype & ?\|?( istype & is, long int & li ) {
957	fmt( is, "%li", &li );
958	return is;
959	} // ?\|?
960
961	istype & ?\|?( istype & is, unsigned long int & ulli ) {
962	fmt( is, "%li", &ulli );
963	return is;
964	} // ?\|?
965
966	istype & ?\|?( istype & is, long long int & lli ) {
967	fmt( is, "%lli", &lli );
968	return is;
969	} // ?\|?
970
971	istype & ?\|?( istype & is, unsigned long long int & ulli ) {
972	fmt( is, "%lli", &ulli );
973	return is;
974	} // ?\|?
975
976	#if defined( __SIZEOF_INT128__ )
977	istype & ?\|?( istype & is, int128 & i128 ) {
978	return (istype &)(is \| (unsigned int128 &)i128);
979	} // ?\|?
980
981	istype & ?\|?( istype & is, unsigned int128 & ui128 ) {
982	char s[40];
983	bool sign = false;
984
985	if ( fmt( is, " %[-]", s ) == 1 ) sign = true; // skip whitespace, negative sign ?
986	// If the input is too large, the value returned is undefined. If there is no input, no value is returned
987	if ( fmt( is, "%39[0-9]%*[0-9]", s ) == 1 ) { // take first 39 characters, ignore remaining
988	ui128 = 0;
989	for ( unsigned int i = 0; s[i] != '\0'; i += 1 ) {
990	ui128 = ui128 * 10 + s[i] - '0';
991	} // for
992	if ( sign ) ui128 = -ui128;
993	} else if ( sign ) ungetc( is, '-' ); // return minus when no digits
994	return is;
995	} // ?\|?
996	#endif // __SIZEOF_INT128__
997
998	istype & ?\|?( istype & is, float & f ) {
999	fmt( is, "%f", &f );
1000	return is;
1001	} // ?\|?
1002
1003	istype & ?\|?( istype & is, double & d ) {
1004	fmt( is, "%lf", &d );
1005	return is;
1006	} // ?\|?
1007
1008	istype & ?\|?( istype & is, long double & ld ) {
1009	fmt( is, "%Lf", &ld );
1010	return is;
1011	} // ?\|?
1012
1013
1014	istype & ?\|?( istype & is, float _Complex & fc ) {
1015	float re, im;
1016	fmt( is, "%f%fi", &re, &im );
1017	fc = re + im * _Complex_I;
1018	return is;
1019	} // ?\|?
1020
1021	istype & ?\|?( istype & is, double _Complex & dc ) {
1022	double re, im;
1023	fmt( is, "%lf%lfi", &re, &im );
1024	dc = re + im * _Complex_I;
1025	return is;
1026	} // ?\|?
1027
1028	istype & ?\|?( istype & is, long double _Complex & ldc ) {
1029	long double re, im;
1030	fmt( is, "%Lf%Lfi", &re, &im );
1031	ldc = re + im * _Complex_I;
1032	return is;
1033	} // ?\|?
1034
1035	// istype & ?\|?( istype & is, const char fmt[] ) {
1036	// fmt( is, fmt, "" );
1037	// return is;
1038	// } // ?\|?
1039
1040	istype & ?\|?( istype & is, char * s ) {
1041	fmt( is, "%s", s );
1042	return is;
1043	} // ?\|?
1044
1045	// manipulators
1046	istype & ?\|?( istype & is, istype & (* manip)( istype & ) ) {
1047	return manip( is );
1048	} // ?\|?
1049
1050	istype & nl( istype & is ) {
1051	fmt( is, "%*[^\n]" ); // ignore characters to newline
1052	return is;
1053	} // nl
1054
1055	istype & nlOn( istype & is ) {
1056	nlOn( is ); // call void returning
1057	return is;
1058	} // nlOn
1059
1060	istype & nlOff( istype & is ) {
1061	nlOff( is ); // call void returning
1062	return is;
1063	} // nlOff
1064	} // distribution
1065
1066	// ********************************* manipulators *********************************
1067
1068	forall( dtype istype \| istream( istype ) )
1069	istype & ?\|?( istype & is, _Istream_Cstr f ) {
1070	// skip xxx
1071	if ( ! f.s ) {
1072	// printf( "skip %s %d\n", f.scanset, f.wd );
1073	if ( f.wd == -1 ) fmt( is, f.scanset, "" ); // no input arguments
1074	else for ( f.wd ) fmt( is, "%*c" );
1075	return is;
1076	} // if
1077	size_t len = 0;
1078	if ( f.scanset ) len = strlen( f.scanset );
1079	char fmtstr[len + 16];
1080	int start = 1;
1081	fmtstr[0] = '%';
1082	if ( f.flags.ignore ) { fmtstr[1] = '*'; start += 1; }
1083	if ( f.wd != -1 ) { start += sprintf( &fmtstr[start], "%d", f.wd ); }
1084	// cstr %s, %s, %ws, %ws
1085	if ( ! f.scanset ) {
1086	fmtstr[start] = 's'; fmtstr[start + 1] = '\0';
1087	// printf( "cstr %s\n", fmtstr );
1088	fmt( is, fmtstr, f.s );
1089	return is;
1090	} // if
1091	// incl %[xxx], %[xxx], %w[xxx], %w[xxx]
1092	// excl %[^xxx], %[^xxx], %w[^xxx], %w[^xxx]
1093	fmtstr[start] = '['; start += 1;
1094	if ( f.flags.inex ) { fmtstr[start] = '^'; start += 1; }
1095	strcpy( &fmtstr[start], f.scanset ); // copy includes '\0'
1096	len += start;
1097	fmtstr[len] = ']'; fmtstr[len + 1] = '\0';
1098	// printf( "incl/excl %s\n", fmtstr );
1099	fmt( is, fmtstr, f.s );
1100	return is;
1101	} // ?\|?
1102
1103	forall( dtype istype \| istream( istype ) )
1104	istype & ?\|?( istype & is, _Istream_Char f ) {
1105	fmt( is, "%*c" ); // argument variable unused
1106	return is;
1107	} // ?\|?
1108
1109	#define InputFMTImpl( T, CODE ) \
1110	forall( dtype istype \| istream( istype ) ) \
1111	istype & ?\|?( istype & is, _Istream_Manip(T) f ) { \
1112	enum { size = 16 }; \
1113	char fmtstr[size]; \
1114	if ( f.wd == -1 ) { \
1115	snprintf( fmtstr, size, "%%%s%s", f.ignore ? "*" : "", CODE ); \
1116	} else { \
1117	snprintf( fmtstr, size, "%%%s%d%s", f.ignore ? "*" : "", f.wd, CODE ); \
1118	} /* if */ \
1119	/* printf( "%d %s %p\n", f.wd, fmtstr, &f.val ); */ \
1120	fmt( is, fmtstr, &f.val ); \
1121	return is; \
1122	} // ?\|?
1123
1124	InputFMTImpl( signed char, "hhi" )
1125	InputFMTImpl( unsigned char, "hhi" )
1126	InputFMTImpl( signed short int, "hi" )
1127	InputFMTImpl( unsigned short int, "hi" )
1128	InputFMTImpl( signed int, "i" )
1129	InputFMTImpl( unsigned int, "i" )
1130	InputFMTImpl( signed long int, "li" )
1131	InputFMTImpl( unsigned long int, "li" )
1132	InputFMTImpl( signed long long int, "lli" )
1133	InputFMTImpl( unsigned long long int, "lli" )
1134
1135	InputFMTImpl( float, "f" )
1136	InputFMTImpl( double, "lf" )
1137	InputFMTImpl( long double, "Lf" )
1138
1139	forall( dtype istype \| istream( istype ) )
1140	istype & ?\|?( istype & is, _Istream_Manip(float _Complex) fc ) {
1141	float re, im;
1142	_Istream_Manip(float) fmtuc @= { re, fc.wd, fc.ignore };
1143	is \| fmtuc;
1144	&fmtuc.val = &im;
1145	is \| fmtuc;
1146	if ( ! fc.ignore ) fc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1147	return is;
1148	} // ?\|?
1149
1150	forall( dtype istype \| istream( istype ) )
1151	istype & ?\|?( istype & is, _Istream_Manip(double _Complex) dc ) {
1152	double re, im;
1153	_Istream_Manip(double) fmtuc @= { re, dc.wd, dc.ignore };
1154	is \| fmtuc;
1155	&fmtuc.val = &im;
1156	is \| fmtuc;
1157	if ( ! dc.ignore ) dc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1158	return is;
1159	} // ?\|?
1160
1161	forall( dtype istype \| istream( istype ) )
1162	istype & ?\|?( istype & is, _Istream_Manip(long double _Complex) ldc ) {
1163	long double re, im;
1164	_Istream_Manip(long double) fmtuc @= { re, ldc.wd, ldc.ignore };
1165	is \| fmtuc;
1166	&fmtuc.val = &im;
1167	is \| fmtuc;
1168	if ( ! ldc.ignore ) ldc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1169	return is;
1170	} // ?\|?
1171
1172	// Local Variables: //
1173	// tab-width: 4 //
1174	// compile-command: "cfa iostream.cfa" //
1175	// End: //

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