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ADT ast-experimental enum forall-pointer-decay jacob/cs343-translation pthread-emulation qualifiedEnum

Last change on this file since c1dafea was b1e614f4, checked in by Peter A. Buhr <pabuhr@…>, 4 years ago
check for log10(0) in output manipulator eng
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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 : Sat May 15 09:39:21 2021
13	// Update Count : 1342
14	//
15
16	#include "iostream.hfa"
17
18	#include <stdio.h>
19	#include <stdbool.h> // true/false
20	#include <stdint.h> // UINT64_MAX
21	#include <float.h> // DBL_DIG, LDBL_DIG
22	#include <complex.h> // creal, cimag
23	//#include <string.h> // strlen, strcmp, memcpy
24	extern "C" {
25	extern size_t strlen (const char *__s) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));
26	extern int strcmp (const char __s1, const char __s2) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));
27	extern char strcpy (char __restrict __dest, const char *__restrict __src) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
28	extern void memcpy (void __restrict __dest, const void *__restrict __src, size_t __n) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
29	} // extern "C"
30
31	#include "math.hfa" // isfinite, floor, ceiling_div
32	#include "bitmanip.hfa" // high1
33
34
35	// ********************************* ostream *********************************
36
37
38	forall( ostype & \| basic_ostream( ostype ) ) {
39	ostype & ?\|?( ostype & os, bool b ) {
40	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
41	fmt( os, "%s", b ? "true" : "false" );
42	return os;
43	} // ?\|?
44	void ?\|?( ostype & os, bool b ) {
45	(ostype &)(os \| b); ends( os );
46	} // ?\|?
47
48	ostype & ?\|?( ostype & os, char c ) {
49	fmt( os, "%c", c );
50	if ( c == '\n' ) setNL$( os, true );
51	return sepOff( os );
52	} // ?\|?
53	void ?\|?( ostype & os, char c ) {
54	(ostype &)(os \| c); ends( os );
55	} // ?\|?
56
57	ostype & ?\|?( ostype & os, signed char sc ) {
58	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
59	fmt( os, "%hhd", sc );
60	return os;
61	} // ?\|?
62	void ?\|?( ostype & os, signed char sc ) {
63	(ostype &)(os \| sc); ends( os );
64	} // ?\|?
65
66	ostype & ?\|?( ostype & os, unsigned char usc ) {
67	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
68	fmt( os, "%hhu", usc );
69	return os;
70	} // ?\|?
71	void ?\|?( ostype & os, unsigned char usc ) {
72	(ostype &)(os \| usc); ends( os );
73	} // ?\|?
74
75	ostype & ?\|?( ostype & os, short int si ) {
76	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
77	fmt( os, "%hd", si );
78	return os;
79	} // ?\|?
80	void & ?\|?( ostype & os, short int si ) {
81	(ostype &)(os \| si); ends( os );
82	} // ?\|?
83
84	ostype & ?\|?( ostype & os, unsigned short int usi ) {
85	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
86	fmt( os, "%hu", usi );
87	return os;
88	} // ?\|?
89	void & ?\|?( ostype & os, unsigned short int usi ) {
90	(ostype &)(os \| usi); ends( os );
91	} // ?\|?
92
93	ostype & ?\|?( ostype & os, int i ) {
94	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
95	fmt( os, "%d", i );
96	return os;
97	} // ?\|?
98	void & ?\|?( ostype & os, int i ) {
99	(ostype &)(os \| i); ends( os );
100	} // ?\|?
101
102	ostype & ?\|?( ostype & os, unsigned int ui ) {
103	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
104	fmt( os, "%u", ui );
105	return os;
106	} // ?\|?
107	void & ?\|?( ostype & os, unsigned int ui ) {
108	(ostype &)(os \| ui); ends( os );
109	} // ?\|?
110
111	ostype & ?\|?( ostype & os, long int li ) {
112	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
113	fmt( os, "%ld", li );
114	return os;
115	} // ?\|?
116	void & ?\|?( ostype & os, long int li ) {
117	(ostype &)(os \| li); ends( os );
118	} // ?\|?
119
120	ostype & ?\|?( ostype & os, unsigned long int uli ) {
121	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
122	fmt( os, "%lu", uli );
123	return os;
124	} // ?\|?
125	void & ?\|?( ostype & os, unsigned long int uli ) {
126	(ostype &)(os \| uli); ends( os );
127	} // ?\|?
128
129	ostype & ?\|?( ostype & os, long long int lli ) {
130	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
131	fmt( os, "%lld", lli );
132	return os;
133	} // ?\|?
134	void & ?\|?( ostype & os, long long int lli ) {
135	(ostype &)(os \| lli); ends( os );
136	} // ?\|?
137
138	ostype & ?\|?( ostype & os, unsigned long long int ulli ) {
139	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
140	fmt( os, "%llu", ulli );
141	return os;
142	} // ?\|?
143	void & ?\|?( ostype & os, unsigned long long int ulli ) {
144	(ostype &)(os \| ulli); ends( os );
145	} // ?\|?
146
147	#if defined( __SIZEOF_INT128__ )
148	// UINT64_MAX 18_446_744_073_709_551_615_ULL
149	#define P10_UINT64 10_000_000_000_000_000_000_ULL // 19 zeroes
150
151	static inline void base10_128( ostype & os, unsigned int128 val ) {
152	#if defined(__GNUC__) && __GNUC_PREREQ(7,0) // gcc version >= 7
153	if ( val > P10_UINT64 ) {
154	#else
155	if ( (uint64_t)(val >> 64) != 0 \|\| (uint64_t)val > P10_UINT64 ) { // patch gcc 5 & 6 -O3 bug
156	#endif // __GNUC_PREREQ(7,0)
157	base10_128( os, val / P10_UINT64 ); // recursive
158	fmt( os, "%.19lu", (uint64_t)(val % P10_UINT64) );
159	} else {
160	fmt( os, "%lu", (uint64_t)val );
161	} // if
162	} // base10_128
163
164	static inline void base10_128( ostype & os, int128 val ) {
165	if ( val < 0 ) {
166	fmt( os, "-" ); // leading negative sign
167	val = -val;
168	} // if
169	base10_128( os, (unsigned int128)val ); // print zero/positive value
170	} // base10_128
171
172	ostype & ?\|?( ostype & os, int128 llli ) {
173	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
174	base10_128( os, llli );
175	return os;
176	} // ?\|?
177	void & ?\|?( ostype & os, int128 llli ) {
178	(ostype &)(os \| llli); ends( os );
179	} // ?\|?
180
181	ostype & ?\|?( ostype & os, unsigned int128 ullli ) {
182	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
183	base10_128( os, ullli );
184	return os;
185	} // ?\|?
186	void & ?\|?( ostype & os, unsigned int128 ullli ) {
187	(ostype &)(os \| ullli); ends( os );
188	} // ?\|?
189	#endif // __SIZEOF_INT128__
190
191	#define PrintWithDP( os, format, val, ... ) \
192	{ \
193	enum { size = 48 }; \
194	char buf[size]; \
195	int len = snprintf( buf, size, format, ##__VA_ARGS__, val ); \
196	fmt( os, "%s", buf ); \
197	if ( isfinite( val ) ) { /* if number, print decimal point when no fraction or exponent */ \
198	for ( int i = 0;; i += 1 ) { \
199	if ( i == len ) { fmt( os, "." ); break; } \
200	if ( buf[i] == '.' \|\| buf[i] == 'e' \|\| buf[i] == 'E' ) break; /* decimal point or scientific ? */ \
201	} /* for */ \
202	} /* if */ \
203	}
204
205	ostype & ?\|?( ostype & os, float f ) {
206	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
207	PrintWithDP( os, "%g", f );
208	return os;
209	} // ?\|?
210	void & ?\|?( ostype & os, float f ) {
211	(ostype &)(os \| f); ends( os );
212	} // ?\|?
213
214	ostype & ?\|?( ostype & os, double d ) {
215	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
216	PrintWithDP( os, "%.*lg", d, DBL_DIG );
217	return os;
218	} // ?\|?
219	void & ?\|?( ostype & os, double d ) {
220	(ostype &)(os \| d); ends( os );
221	} // ?\|?
222
223	ostype & ?\|?( ostype & os, long double ld ) {
224	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
225	PrintWithDP( os, "%.*Lg", ld, LDBL_DIG );
226	return os;
227	} // ?\|?
228	void & ?\|?( ostype & os, long double ld ) {
229	(ostype &)(os \| ld); ends( os );
230	} // ?\|?
231
232	ostype & ?\|?( ostype & os, float _Complex fc ) {
233	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
234	// os \| crealf( fc ) \| nonl;
235	PrintWithDP( os, "%g", crealf( fc ) );
236	PrintWithDP( os, "%+g", cimagf( fc ) );
237	fmt( os, "i" );
238	return os;
239	} // ?\|?
240	void & ?\|?( ostype & os, float _Complex fc ) {
241	(ostype &)(os \| fc); ends( os );
242	} // ?\|?
243
244	ostype & ?\|?( ostype & os, double _Complex dc ) {
245	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
246	// os \| creal( dc ) \| nonl;
247	PrintWithDP( os, "%.*lg", creal( dc ), DBL_DIG );
248	PrintWithDP( os, "%+.*lg", cimag( dc ), DBL_DIG );
249	fmt( os, "i" );
250	return os;
251	} // ?\|?
252	void & ?\|?( ostype & os, double _Complex dc ) {
253	(ostype &)(os \| dc); ends( os );
254	} // ?\|?
255
256	ostype & ?\|?( ostype & os, long double _Complex ldc ) {
257	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
258	// os \| creall( ldc ) \|\| nonl;
259	PrintWithDP( os, "%.*Lg", creall( ldc ), LDBL_DIG );
260	PrintWithDP( os, "%+.*Lg", cimagl( ldc ), LDBL_DIG );
261	fmt( os, "i" );
262	return os;
263	} // ?\|?
264	void & ?\|?( ostype & os, long double _Complex ldc ) {
265	(ostype &)(os \| ldc); ends( os );
266	} // ?\|?
267
268	ostype & ?\|?( ostype & os, const char s[] ) {
269	enum { Open = 1, Close, OpenClose };
270	static const unsigned char mask[256] @= {
271	// opening delimiters, no space after
272	['('] : Open, ['['] : Open, ['{'] : Open,
273	['='] : Open, ['$'] : Open, [(unsigned char)'£'] : Open, [(unsigned char)'¥'] : Open,
274	[(unsigned char)'¡'] : Open, [(unsigned char)'¿'] : Open, [(unsigned char)'«'] : Open,
275	// closing delimiters, no space before
276	[','] : Close, ['.'] : Close, [';'] : Close, ['!'] : Close, ['?'] : Close,
277	['%'] : Close, [(unsigned char)'¢'] : Close, [(unsigned char)'»'] : Close,
278	[')'] : Close, [']'] : Close, ['}'] : Close,
279	// opening-closing delimiters, no space before or after
280	['\''] : OpenClose, ['`'] : OpenClose, ['"'] : OpenClose, [':'] : OpenClose,
281	[' '] : OpenClose, ['\f'] : OpenClose, ['\n'] : OpenClose, ['\r'] : OpenClose, ['\t'] : OpenClose, ['\v'] : OpenClose, // isspace
282	}; // mask
283
284	if ( s[0] == '\0' ) { sepOff( os ); return os; } // null string => no separator
285
286	// first character IS NOT spacing or closing punctuation => add left separator
287	unsigned char ch = s[0]; // must make unsigned
288	if ( sepPrt$( os ) && mask[ ch ] != Close && mask[ ch ] != OpenClose ) {
289	fmt( os, "%s", sepGetCur$( os ) );
290	} // if
291
292	// if string starts line, must reset to determine open state because separator is off
293	sepReset$( os ); // reset separator
294
295	// last character IS spacing or opening punctuation => turn off separator for next item
296	int len = strlen( s );
297	ch = s[len - 1]; // must make unsigned
298	fmt( os, "%s", s ); // fmt resets seperator, but reset it again
299	if ( sepPrt$( os ) && mask[ ch ] != Open && mask[ ch ] != OpenClose ) {
300	sepOn( os );
301	} else {
302	sepOff( os );
303	} // if
304	if ( ch == '\n' ) setNL$( os, true ); // check AFTER sepPrt$ call above as it resets NL flag
305	return os;
306	// return write( os, s, len );
307	} // ?\|?
308	void ?\|?( ostype & os, const char s[] ) {
309	(ostype &)(os \| s); ends( os );
310	} // ?\|?
311
312	// ostype & ?\|?( ostype & os, const char16_t * s ) {
313	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
314	// fmt( os, "%ls", s );
315	// return os;
316	// } // ?\|?
317
318	// #if ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 ) // char32_t == wchar_t => ambiguous
319	// ostype & ?\|?( ostype & os, const char32_t * s ) {
320	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
321	// fmt( os, "%ls", s );
322	// return os;
323	// } // ?\|?
324	// #endif // ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 )
325
326	// ostype & ?\|?( ostype & os, const wchar_t * s ) {
327	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
328	// fmt( os, "%ls", s );
329	// return os;
330	// } // ?\|?
331
332	ostype & ?\|?( ostype & os, const void * p ) {
333	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
334	fmt( os, "%p", p );
335	return os;
336	} // ?\|?
337	void ?\|?( ostype & os, const void * p ) {
338	(ostype &)(os \| p); ends( os );
339	} // ?\|?
340
341	// manipulators
342	ostype & ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) {
343	return manip( os );
344	} // ?\|?
345	void ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) {
346	manip( os );
347	if ( getPrt$( os ) ) ends( os ); // something printed ?
348	setPrt$( os, false ); // turn off
349	} // ?\|?
350
351	ostype & sep( ostype & os ) {
352	return (ostype &)(os \| sepGet( os ));
353	} // sep
354
355	ostype & sepTuple( ostype & os ) {
356	return os \| sepGetTuple( os );
357	} // sepTuple
358
359	ostype & nl( ostype & os ) {
360	(ostype &)(os \| '\n');
361	setPrt$( os, false ); // turn off
362	setNL$( os, true );
363	return sepOff( os ); // prepare for next line
364	} // nl
365
366	ostype & nonl( ostype & os ) {
367	setPrt$( os, false ); // turn off
368	return os;
369	} // nonl
370
371	ostype & sepOn( ostype & os ) {
372	sepOn( os ); // call void returning
373	return os;
374	} // sepOn
375
376	ostype & sepOff( ostype & os ) {
377	sepOff( os ); // call void returning
378	return os;
379	} // sepOff
380
381	ostype & sepEnable( ostype & os ) {
382	sepEnable( os ); // call void returning
383	return os;
384	} // sepEnable
385
386	ostype & sepDisable( ostype & os ) {
387	sepDisable( os ); // call void returning
388	return os;
389	} // sepDisable
390
391	ostype & nlOn( ostype & os ) {
392	nlOn( os ); // call void returning
393	return os;
394	} // nlOn
395
396	ostype & nlOff( ostype & os ) {
397	nlOff( os ); // call void returning
398	return os;
399	} // nlOff
400	} // distribution
401
402	forall( ostype & \| ostream( ostype ) ) {
403	ostype & acquire( ostype & os ) {
404	acquire( os ); // call void returning
405	return os;
406	} // acquire
407	} // distribution
408
409	// tuples
410	forall( ostype &, T, Params... \| writeable( T, ostype ) \| { ostype & ?\|?( ostype &, Params ); } ) {
411	ostype & ?\|?( ostype & os, T arg, Params rest ) {
412	(ostype &)(os \| arg); // print first argument
413	sepSetCur$( os, sepGetTuple( os ) ); // switch to tuple separator
414	(ostype &)(os \| rest); // print remaining arguments
415	sepSetCur$( os, sepGet( os ) ); // switch to regular separator
416	return os;
417	} // ?\|?
418	void ?\|?( ostype & os, T arg, Params rest ) {
419	// (ostype &)(?\|?( os, arg, rest )); ends( os );
420	(ostype &)(os \| arg); // print first argument
421	sepSetCur$( os, sepGetTuple( os ) ); // switch to tuple separator
422	(ostype &)(os \| rest); // print remaining arguments
423	sepSetCur$( os, sepGet( os ) ); // switch to regular separator
424	ends( os );
425	} // ?\|?
426	} // distribution
427
428	// writes the range [begin, end) to the given stream
429	forall( ostype &, elt_type \| writeable( elt_type, ostype ), iterator_type \| iterator( iterator_type, elt_type ) ) {
430	void write( iterator_type begin, iterator_type end, ostype & os ) {
431	void print( elt_type i ) { os \| i; }
432	for_each( begin, end, print );
433	} // ?\|?
434
435	void write_reverse( iterator_type begin, iterator_type end, ostype & os ) {
436	void print( elt_type i ) { os \| i; }
437	for_each_reverse( begin, end, print );
438	} // ?\|?
439	} // distribution
440
441	// ********************************* manipulators *********************************
442
443	// ********************************* integral *********************************
444
445	static const char * shortbin[] = { "0", "1", "10", "11", "100", "101", "110", "111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
446	static const char * longbin[] = { "0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
447
448	// Default prefix for non-decimal prints is 0b, 0, 0x.
449	#define IntegralFMTImpl( T, IFMTNP, IFMTP ) \
450	forall( ostype & \| basic_ostream( ostype ) ) { \
451	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
452	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) ); \
453	\
454	if ( f.base == 'b' \|\| f.base == 'B' ) { /* bespoke binary format */ \
455	int bits = high1( f.val ); /* position of most significant bit */ \
456	if ( bits == 0 ) bits = 1; /* 0 value => force one bit to print */ \
457	int spaces; \
458	if ( ! f.flags.left ) { /* right justified ? */ \
459	/* Note, base prefix then zero padding or spacing then prefix. */ \
460	if ( f.flags.pc ) { \
461	spaces = f.wd - f.pc; \
462	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
463	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
464	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
465	spaces = f.pc - bits; \
466	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
467	} else { \
468	spaces = f.wd - bits; \
469	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
470	if ( f.flags.pad0 ) { \
471	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
472	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
473	} else { \
474	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
475	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
476	} /* if */ \
477	} /* if */ \
478	} else { \
479	if ( ! f.flags.nobsdp ) fmt( os, "0%c", f.base ); \
480	if ( f.flags.pc ) { \
481	spaces = f.pc - bits; \
482	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
483	spaces = f.wd - f.pc; \
484	} else { /* pad0 flag ignored with left flag */ \
485	spaces = f.wd - bits; \
486	} /* if */ \
487	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
488	} /* if */ \
489	int shift = floor( bits - 1, 4 ); \
490	typeof( f.val ) temp = f.val; \
491	fmt( os, "%s", shortbin[(temp >> shift) & 0xf] ); \
492	for () { \
493	shift -= 4; \
494	if ( shift < 0 ) break; \
495	temp = f.val; \
496	fmt( os, "%s", longbin[(temp >> shift) & 0xf] ); \
497	} /* for */ \
498	if ( f.flags.left && spaces > 0 ) fmt( os, "%*s", spaces, " " ); \
499	return os; \
500	} /* if */ \
501	\
502	char fmtstr[sizeof(IFMTP)]; /* sizeof includes '\0' */ \
503	if ( ! f.flags.pc ) memcpy( &fmtstr, IFMTNP, sizeof(IFMTNP) ); \
504	else memcpy( &fmtstr, IFMTP, sizeof(IFMTP) ); \
505	int star = 4; /* position before first '' / \
506	\
507	/* Insert flags into spaces before '', from right to left. / \
508	if ( ! f.flags.nobsdp ) { fmtstr[star] = '#'; star -= 1; } \
509	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
510	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
511	if ( f.flags.pad0 && ! f.flags.pc ) { fmtstr[star] = '0'; star -= 1; } \
512	fmtstr[star] = '%'; \
513	\
514	if ( ! f.flags.pc ) { /* no precision */ \
515	fmtstr[sizeof(IFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
516	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
517	fmt( os, &fmtstr[star], f.wd, f.val ); \
518	} else { /* precision */ \
519	fmtstr[sizeof(IFMTP)-2] = f.base; /* sizeof includes '\0' */ \
520	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
521	fmt( os, &fmtstr[star], f.wd, f.pc, f.val ); \
522	} /* if */ \
523	return os; \
524	} /* ?\|? */ \
525	void ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
526	(ostype &)(os \| f); ends( os ); \
527	} /* ?\|? */ \
528	} // distribution
529
530	IntegralFMTImpl( signed char, " hh ", " .*hh " )
531	IntegralFMTImpl( unsigned char, " hh ", " .*hh " )
532	IntegralFMTImpl( signed short int, " h ", " .*h " )
533	IntegralFMTImpl( unsigned short int, " h ", " .*h " )
534	IntegralFMTImpl( signed int, " * ", " . " )
535	IntegralFMTImpl( unsigned int, " * ", " . " )
536	IntegralFMTImpl( signed long int, " l ", " .*l " )
537	IntegralFMTImpl( unsigned long int, " l ", " .*l " )
538	IntegralFMTImpl( signed long long int, " ll ", " .*ll " )
539	IntegralFMTImpl( unsigned long long int, " ll ", " .*ll " )
540
541
542	#if defined( __SIZEOF_INT128__ )
543	// Default prefix for non-decimal prints is 0b, 0, 0x.
544	forall( ostype & \| basic_ostream( ostype ) )
545	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 ) {
546	int wd = 1; // f.wd is never 0 because 0 implies left-pad
547	if ( val > power ) { // subdivide value into printable 64-bit values
548	base_128( os, val / power, power, f, maxdig, bits, cnt + 1 ); // recursive
549	f.val = val % power;
550	if ( cnt == 1 && f.flags.left ) { wd = f.wd; f.wd = maxdig; } // copy f.wd and reset for printing middle chunk
551	// printf( "R val:%#lx(%lu) wd:%u pc:%u base:%c neg:%d pc:%d left:%d nobsdp:%d sign:%d pad0:%d\n",
552	// 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 );
553	(ostype &)(os \| f);
554	if ( cnt == 1 ) {
555	if ( f.flags.left ) { wd -= maxdig; f.wd = wd < 0 ? 1 : wd; } // update and restore f.wd for printing end chunk
556	sepOff( os ); // no seperator between chunks
557	} // if
558	} else { // print start chunk
559	f.val = val;
560	// f.pc is unsigned => use wd
561	if ( f.flags.pc && f.pc > maxdig * cnt ) { wd = f.pc - maxdig * cnt; f.pc = wd < 0 ? 0 : wd; }
562	else { f.flags.pc = false; f.pc = 0; }
563
564	if ( ! f.flags.left ) { // right justify
565	wd = f.wd - maxdig * cnt;
566	f.wd = wd < 0 ? 1 : wd;
567	wd = maxdig;
568	} else { // left justify
569	if ( cnt != 0 ) { // value >= 2^64 ?
570	unsigned int dig, bs = 0;
571	// compute size of prefix digits and base
572	if ( f.base == 'd' \|\| f.base == 'u' ) { // no base prefix
573	dig = ceil( log10( f.val ) ); // use floating-point
574	if ( f.base == 'd' && (f.flags.neg \|\| f.flags.sign) ) bs = 1; // sign ?
575	} else {
576	dig = ceiling_div( high1( f.val ), bits );
577	if ( ! f.flags.nobsdp ) { // base prefix ?
578	if ( f.base == 'o' ) {
579	// 0 prefix for octal is not added for precision with leading zero
580	if ( f.pc <= dig ) bs = 1; // 1 character prefix
581	} else bs = 2; // 2 character prefix
582	} // if
583	} // if
584	wd = f.wd - (f.pc > dig ? f.pc : dig) - bs; // precision > leading digits ?
585	if ( wd < 0 ) wd = 1;
586	f.wd = 1;
587	} // if
588	// all manipulators handled implicitly for value < 2^64
589	} // if
590	// prior checks ensure wd not negative
591
592	if ( f.flags.neg ) f.val = -f.val;
593	// printf( "L val:%#lx(%lu) wd:%u pc:%u base:%c neg:%d pc:%d left:%d nobsdp:%d sign:%d pad0:%d\n",
594	// 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 );
595	(ostype &)(os \| f);
596
597	// remaining middle and end chunks are padded with 0s on the left
598	if ( ! f.flags.left ) { f.flags.pad0 = true; f.flags.pc = false; } // left pad with 0s
599	else { f.pc = maxdig; f.flags.pc = true; } // left pad with precision
600
601	if ( cnt != 0 ) sepOff( os ); // no seperator between chunks
602	f.wd = wd; // reset f.wd for next chunk
603	f.flags.sign = false; // no leading +/- sign
604	f.flags.nobsdp = true; // no leading base prefix
605	} // if
606	} // base_128
607
608	#define IntegralFMTImpl128( T ) \
609	forall( ostype & \| basic_ostream( ostype ) ) { \
610	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
611	_Ostream_Manip(uint64_t) fmt; \
612	fmt.[wd, pc, base, all] = f.[wd, pc, base, all]; \
613	if ( f.base == 'b' \| f.base == 'B' ) { \
614	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 64, 1 ); \
615	} else if ( f.base == 'o' ) { \
616	base_128( os, f.val, (unsigned int128)1 << 63, fmt, 21, 3 ); \
617	} else if ( f.base == 'd' \|\| f.base == 'u' ) { \
618	if ( f.base == 'd' && f.val < 0 ) { f.val = -f.val; fmt.flags.neg = true; } \
619	base_128( os, f.val, (unsigned int128)10_000_000_000_000_000_000UL, fmt, 19, 0 ); \
620	} else { \
621	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 16, 4 ); \
622	} /* if */ \
623	return os; \
624	} /* ?\|? */ \
625	void ?\|?( ostype & os, _Ostream_Manip(T) f ) { (ostype &)(os \| f); ends( os ); } \
626	} // distribution
627
628	IntegralFMTImpl128( int128 )
629	IntegralFMTImpl128( unsigned int128 )
630	#endif // __SIZEOF_INT128__
631
632	// ********************************* floating point *********************************
633
634	static const char *suffixes[] = {
635	"y", "z", "a", "f", "p", "n", "u", "m", "",
636	"K", "M", "G", "T", "P", "E", "Z", "Y"
637	};
638	#define SUFFIXES_START (-24) /* Smallest power for which there is a suffix defined. */
639	#define SUFFIXES_END (SUFFIXES_START + (int)((sizeof(suffixes) / sizeof(char ) - 1) 3))
640
641	#define PrintWithDP2( os, format, ... ) \
642	{ \
643	if ( ! f.flags.eng ) { \
644	len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
645	if ( isfinite( f.val ) && ( f.pc != 0 \|\| ! f.flags.nobsdp ) ) { /* if number, print decimal point when no fraction or exponent */ \
646	for ( i = 0; i < len && buf[i] != '.' && buf[i] != 'e' && buf[i] != 'E'; i += 1 ); /* decimal point or scientific ? */ \
647	if ( i == len ) { \
648	if ( ! f.flags.left ) { \
649	buf[i] = '.'; buf[i + 1] = '\0'; \
650	if ( buf[0] == ' ' ) bufbeg = 1; /* decimal point within width */ \
651	} else { \
652	for ( i = 0; i < len && buf[i] != ' '; i += 1 ); /* trailing blank ? */ \
653	buf[i] = '.'; \
654	if ( i == len ) buf[i + 1] = '\0'; \
655	} /* if */ \
656	} /* if */ \
657	} /* if */ \
658	} else { \
659	int exp10, len2; \
660	eng( f.val, f.pc, exp10 ); /* changes arguments */ \
661	/* printf( "%g %d %d %d %s\n", f.val, f.wd, f.pc, exp10, format ); */ \
662	if ( ! f.flags.left && f.wd > 1 ) { \
663	/* Exponent size: 'e', optional minus sign, number of digits: log10(0) => undefined */ \
664	f.wd -= 1 + (exp10 < 0 ? 1 : 0) + lrint( floor( exp10 == 0 ? 0 : log10( abs( exp10 ) ) ) ) + 1; \
665	if ( f.wd < 1 ) f.wd = 1; \
666	} /* if */ \
667	len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
668	if ( f.flags.left ) { \
669	for ( len -= 1; len > 0 && buf[len] == ' '; len -= 1 ); \
670	len += 1; \
671	} /* if */ \
672	if ( ! f.flags.nobsdp \|\| (exp10 < SUFFIXES_START) \|\| (exp10 > SUFFIXES_END) ) { \
673	len2 = snprintf( &buf[len], size - len, "e%d", exp10 ); \
674	} else { \
675	len2 = snprintf( &buf[len], size - len, "%s", suffixes[(exp10 - SUFFIXES_START) / 3] ); \
676	} /* if */ \
677	if ( f.flags.left && len + len2 < f.wd ) buf[len + len2] = ' '; \
678	} /* if */ \
679	fmt( os, "%s", &buf[bufbeg] ); \
680	}
681
682	#define FloatingPointFMTImpl( T, DFMTNP, DFMTP ) \
683	forall( ostype & \| basic_ostream( ostype ) ) { \
684	static void eng( T &value, int & pc, int & exp10 ) { \
685	exp10 = lrint( floor( log10( abs( value ) ) ) ); /* round to desired precision */ \
686	if ( exp10 < 0 ) exp10 -= 2; \
687	exp10 = floor( exp10, 3 ); \
688	value *= pow( 10.0, -exp10 ); \
689	if ( pc <= 3 ) pc = 3; \
690	} /* eng */ \
691	\
692	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
693	enum { size = 48 }; \
694	char buf[size]; \
695	int bufbeg = 0, i, len; \
696	\
697	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) ); \
698	char fmtstr[sizeof(DFMTP) + 8]; /* sizeof includes '\0' */ \
699	if ( ! f.flags.pc ) memcpy( &fmtstr, DFMTNP, sizeof(DFMTNP) ); \
700	else memcpy( &fmtstr, DFMTP, sizeof(DFMTP) ); \
701	int star = 4; /* position before first '' / \
702	\
703	/* Insert flags into spaces before '', from right to left. / \
704	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
705	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
706	if ( f.flags.pad0 ) { fmtstr[star] = '0'; star -= 1; } \
707	fmtstr[star] = '%'; \
708	\
709	if ( ! f.flags.pc ) { /* no precision */ \
710	fmtstr[sizeof(DFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
711	/* printf( "%g %d %s\n", f.val, f.wd, &fmtstr[star] ); */ \
712	PrintWithDP2( os, &fmtstr[star], f.wd, f.val ) \
713	} else { /* precision */ \
714	fmtstr[sizeof(DFMTP)-2] = f.base; /* sizeof includes '\0' */ \
715	/* printf( "%g %d %d %s\n", f.val, f.wd, f.pc, &fmtstr[star] ); */ \
716	PrintWithDP2( os, &fmtstr[star], f.wd, f.pc, f.val ) \
717	} /* if */ \
718	return os; \
719	} /* ?\|? */ \
720	\
721	void ?\|?( ostype & os, _Ostream_Manip(T) f ) { (ostype &)(os \| f); ends( os ); } \
722	} // distribution
723
724	FloatingPointFMTImpl( double, " * ", " . " )
725	FloatingPointFMTImpl( long double, " L ", " .*L " )
726
727	// ********************************* character *********************************
728
729	forall( ostype & \| basic_ostream( ostype ) ) {
730	ostype & ?\|?( ostype & os, _Ostream_Manip(char) f ) {
731	if ( f.base != 'c' ) { // bespoke binary/octal/hex format
732	_Ostream_Manip(unsigned char) fmtuc @= { f.val, f.wd, f.pc, f.base, {'\0'} };
733	fmtuc.flags.pc = f.flags.pc;
734	fmtuc.flags.nobsdp = f.flags.nobsdp;
735	// os \| fmtuc \| nonl;
736	(ostype &)(os \| fmtuc);
737	return os;
738	} // if
739
740	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
741
742	#define CFMTNP "% * "
743	char fmtstr[sizeof(CFMTNP)]; // sizeof includes '\0'
744	memcpy( &fmtstr, CFMTNP, sizeof(CFMTNP) );
745	int star = 1; // position before first '*'
746
747	// Insert flags into spaces before '*', from right to left.
748	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
749	fmtstr[star] = '%';
750
751	fmtstr[sizeof(CFMTNP)-2] = f.base; // sizeof includes '\0'
752	// printf( "%d %s\n", f.wd, &fmtstr[star] );
753	fmt( os, &fmtstr[star], f.wd, f.val );
754	return os;
755	} // ?\|?
756
757	void ?\|?( ostype & os, _Ostream_Manip(char) f ) { (ostype &)(os \| f); ends( os ); }
758	} // distribution
759
760	// ********************************* C string *********************************
761
762	forall( ostype & \| basic_ostream( ostype ) ) {
763	ostype & ?\|?( ostype & os, _Ostream_Manip(const char *) f ) {
764	if ( ! f.val ) return os; // null pointer ?
765
766	if ( f.base != 's' ) { // bespoke binary/octal/hex format
767	_Ostream_Manip(unsigned char) fmtuc @= { 0, f.wd, f.pc, f.base, {'\0'} };
768	fmtuc.flags.pc = f.flags.pc;
769	fmtuc.flags.nobsdp = f.flags.nobsdp;
770	for ( unsigned int i = 0; f.val[i] != '\0'; i += 1 ) {
771	fmtuc.val = f.val[i];
772	// os \| fmtuc \| nonl;
773	(ostype &)(os \| fmtuc);
774	} // for
775	return os;
776	} // if
777
778	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
779
780	#define SFMTNP "% * "
781	#define SFMTP "% . "
782	char fmtstr[sizeof(SFMTP)]; // sizeof includes '\0'
783	if ( ! f.flags.pc ) memcpy( &fmtstr, SFMTNP, sizeof(SFMTNP) );
784	else memcpy( &fmtstr, SFMTP, sizeof(SFMTP) );
785	int star = 1; // position before first '*'
786
787	// Insert flags into spaces before '*', from right to left.
788	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
789	fmtstr[star] = '%';
790
791	if ( ! f.flags.pc ) { // no precision
792	// printf( "%d %s\n", f.wd, &fmtstr[star] );
793	fmtstr[sizeof(SFMTNP)-2] = f.base; // sizeof includes '\0'
794	fmt( os, &fmtstr[star], f.wd, f.val );
795	} else { // precision
796	fmtstr[sizeof(SFMTP)-2] = f.base; // sizeof includes '\0'
797	// printf( "%d %d %s\n", f.wd, f.pc, &fmtstr[star] );
798	fmt( os, &fmtstr[star], f.wd, f.pc, f.val );
799	} // if
800	return os;
801	} // ?\|?
802
803	void ?\|?( ostype & os, _Ostream_Manip(const char *) f ) { (ostype &)(os \| f); ends( os ); }
804	} // distribution
805
806
807	// ********************************* istream *********************************
808
809
810	forall( istype & \| basic_istream( istype ) ) {
811	istype & ?\|?( istype & is, bool & b ) {
812	char val[6];
813	fmt( is, "%5s", val );
814	if ( strcmp( val, "true" ) == 0 ) b = true;
815	else if ( strcmp( val, "false" ) == 0 ) b = false;
816	else {
817	fprintf( stderr, "invalid Boolean constant\n" );
818	abort(); // cannot use abort stream
819	} // if
820	return is;
821	} // ?\|?
822	void ?\|?( istype & is, bool & b ) {
823	(istype &)(is \| b); ends( is );
824	} // ?\|?
825
826	istype & ?\|?( istype & is, char & c ) {
827	char temp;
828	for () {
829	fmt( is, "%c", &temp ); // must pass pointer through varg to fmt
830	// do not overwrite parameter with newline unless appropriate
831	if ( temp != '\n' \|\| getANL( is ) ) { c = temp; break; }
832	if ( eof( is ) ) break;
833	} // for
834	return is;
835	} // ?\|?
836	void ?\|?( istype & is, char & c ) {
837	(istype &)(is \| c); ends( is );
838	} // ?\|?
839
840	istype & ?\|?( istype & is, signed char & sc ) {
841	fmt( is, "%hhi", &sc );
842	return is;
843	} // ?\|?
844	void ?\|?( istype & is, signed char & sc ) {
845	(istype &)(is \| sc); ends( is );
846	} // ?\|?
847
848	istype & ?\|?( istype & is, unsigned char & usc ) {
849	fmt( is, "%hhi", &usc );
850	return is;
851	} // ?\|?
852	void ?\|?( istype & is, unsigned char & usc ) {
853	(istype &)(is \| usc); ends( is );
854	} // ?\|?
855
856	istype & ?\|?( istype & is, short int & si ) {
857	fmt( is, "%hi", &si );
858	return is;
859	} // ?\|?
860	void ?\|?( istype & is, short int & si ) {
861	(istype &)(is \| si); ends( is );
862	} // ?\|?
863
864	istype & ?\|?( istype & is, unsigned short int & usi ) {
865	fmt( is, "%hi", &usi );
866	return is;
867	} // ?\|?
868	void ?\|?( istype & is, unsigned short int & usi ) {
869	(istype &)(is \| usi); ends( is );
870	} // ?\|?
871
872	istype & ?\|?( istype & is, int & i ) {
873	fmt( is, "%i", &i );
874	return is;
875	} // ?\|?
876	void ?\|?( istype & is, int & i ) {
877	(istype &)(is \| i); ends( is );
878	} // ?\|?
879
880	istype & ?\|?( istype & is, unsigned int & ui ) {
881	fmt( is, "%i", &ui );
882	return is;
883	} // ?\|?
884	void ?\|?( istype & is, unsigned int & ui ) {
885	(istype &)(is \| ui); ends( is );
886	} // ?\|?
887
888	istype & ?\|?( istype & is, long int & li ) {
889	fmt( is, "%li", &li );
890	return is;
891	} // ?\|?
892	void ?\|?( istype & is, long int & li ) {
893	(istype &)(is \| li); ends( is );
894	} // ?\|?
895
896	istype & ?\|?( istype & is, unsigned long int & ulli ) {
897	fmt( is, "%li", &ulli );
898	return is;
899	} // ?\|?
900	void ?\|?( istype & is, unsigned long int & ulli ) {
901	(istype &)(is \| ulli); ends( is );
902	} // ?\|?
903
904	istype & ?\|?( istype & is, long long int & lli ) {
905	fmt( is, "%lli", &lli );
906	return is;
907	} // ?\|?
908	void ?\|?( istype & is, long long int & lli ) {
909	(istype &)(is \| lli); ends( is );
910	} // ?\|?
911
912	istype & ?\|?( istype & is, unsigned long long int & ulli ) {
913	fmt( is, "%lli", &ulli );
914	return is;
915	} // ?\|?
916	void & ?\|?( istype & is, unsigned long long int & ulli ) {
917	(istype &)(is \| ulli); ends( is );
918	} // ?\|?
919
920	#if defined( __SIZEOF_INT128__ )
921	istype & ?\|?( istype & is, int128 & llli ) {
922	return (istype &)(is \| (unsigned int128 &)llli);
923	} // ?\|?
924	void ?\|?( istype & is, int128 & llli ) {
925	(istype &)(is \| llli); ends( is );
926	} // ?\|?
927
928	istype & ?\|?( istype & is, unsigned int128 & ullli ) {
929	char s[40];
930	bool sign = false;
931
932	if ( fmt( is, " %[-]", s ) == 1 ) sign = true; // skip whitespace, negative sign ?
933	// If the input is too large, the value returned is undefined. If there is no input, no value is returned
934	if ( fmt( is, "%39[0-9]%*[0-9]", s ) == 1 ) { // take first 39 characters, ignore remaining
935	ullli = 0;
936	for ( unsigned int i = 0; s[i] != '\0'; i += 1 ) {
937	ullli = ullli * 10 + s[i] - '0';
938	} // for
939	if ( sign ) ullli = -ullli;
940	} else if ( sign ) ungetc( is, '-' ); // return minus when no digits
941	return is;
942	} // ?\|?
943	void ?\|?( istype & is, unsigned int128 & ullli ) {
944	(istype &)(is \| ullli); ends( is );
945	} // ?\|?
946	#endif // __SIZEOF_INT128__
947
948	istype & ?\|?( istype & is, float & f ) {
949	fmt( is, "%f", &f );
950	return is;
951	} // ?\|?
952	void ?\|?( istype & is, float & f ) {
953	(istype &)(is \| f); ends( is );
954	} // ?\|?
955
956	istype & ?\|?( istype & is, double & d ) {
957	fmt( is, "%lf", &d );
958	return is;
959	} // ?\|?
960	void ?\|?( istype & is, double & d ) {
961	(istype &)(is \| d); ends( is );
962	} // ?\|?
963
964	istype & ?\|?( istype & is, long double & ld ) {
965	fmt( is, "%Lf", &ld );
966	return is;
967	} // ?\|?
968	void ?\|?( istype & is, long double & ld ) {
969	(istype &)(is \| ld); ends( is );
970	} // ?\|?
971
972	istype & ?\|?( istype & is, float _Complex & fc ) {
973	float re, im;
974	fmt( is, "%f%fi", &re, &im );
975	fc = re + im * _Complex_I;
976	return is;
977	} // ?\|?
978	void ?\|?( istype & is, float _Complex & fc ) {
979	(istype &)(is \| fc); ends( is );
980	} // ?\|?
981
982	istype & ?\|?( istype & is, double _Complex & dc ) {
983	double re, im;
984	fmt( is, "%lf%lfi", &re, &im );
985	dc = re + im * _Complex_I;
986	return is;
987	} // ?\|?
988	void ?\|?( istype & is, double _Complex & dc ) {
989	(istype &)(is \| dc); ends( is );
990	} // ?\|?
991
992	istype & ?\|?( istype & is, long double _Complex & ldc ) {
993	long double re, im;
994	fmt( is, "%Lf%Lfi", &re, &im );
995	ldc = re + im * _Complex_I;
996	return is;
997	} // ?\|?
998	void ?\|?( istype & is, long double _Complex & ldc ) {
999	(istype &)(is \| ldc); ends( is );
1000	} // ?\|?
1001
1002	// istype & ?\|?( istype & is, const char fmt[] ) {
1003	// fmt( is, fmt, "" );
1004	// return is;
1005	// } // ?\|?
1006
1007	istype & ?\|?( istype & is, char s[] ) {
1008	fmt( is, "%s", s );
1009	return is;
1010	} // ?\|?
1011	void ?\|?( istype & is, char s[] ) {
1012	(istype &)(is \| s); ends( is );
1013	} // ?\|?
1014
1015	// manipulators
1016	istype & ?\|?( istype & is, istype & (* manip)( istype & ) ) {
1017	return manip( is );
1018	} // ?\|?
1019	void ?\|?( istype & is, istype & (* manip)( istype & ) ) {
1020	manip( is ); ends( is );
1021	} // ?\|?
1022
1023	istype & nl( istype & is ) {
1024	fmt( is, "%*[^\n]" ); // ignore characters to newline
1025	return is;
1026	} // nl
1027
1028	istype & nlOn( istype & is ) {
1029	nlOn( is ); // call void returning
1030	return is;
1031	} // nlOn
1032
1033	istype & nlOff( istype & is ) {
1034	nlOff( is ); // call void returning
1035	return is;
1036	} // nlOff
1037	} // distribution
1038
1039	forall( istype & \| istream( istype ) ) {
1040	istype & acquire( istype & is ) {
1041	acquire( is ); // call void returning
1042	return is;
1043	} // acquire
1044	} // distribution
1045
1046	// ********************************* manipulators *********************************
1047
1048	forall( istype & \| basic_istream( istype ) ) {
1049	istype & ?\|?( istype & is, _Istream_Cstr f ) {
1050	// skip xxx
1051	if ( ! f.s ) {
1052	// printf( "skip %s %d\n", f.scanset, f.wd );
1053	if ( f.wd == -1 ) fmt( is, f.scanset, "" ); // no input arguments
1054	else for ( f.wd ) fmt( is, "%*c" );
1055	return is;
1056	} // if
1057	size_t len = 0;
1058	if ( f.scanset ) len = strlen( f.scanset );
1059	char fmtstr[len + 16];
1060	int start = 1;
1061	fmtstr[0] = '%';
1062	if ( f.flags.ignore ) { fmtstr[1] = '*'; start += 1; }
1063	if ( f.wd != -1 ) { start += sprintf( &fmtstr[start], "%d", f.wd ); }
1064	// cstr %s, %s, %ws, %ws
1065	if ( ! f.scanset ) {
1066	fmtstr[start] = 's'; fmtstr[start + 1] = '\0';
1067	// printf( "cstr %s\n", fmtstr );
1068	fmt( is, fmtstr, f.s );
1069	return is;
1070	} // if
1071	// incl %[xxx], %[xxx], %w[xxx], %w[xxx]
1072	// excl %[^xxx], %[^xxx], %w[^xxx], %w[^xxx]
1073	fmtstr[start] = '['; start += 1;
1074	if ( f.flags.inex ) { fmtstr[start] = '^'; start += 1; }
1075	strcpy( &fmtstr[start], f.scanset ); // copy includes '\0'
1076	len += start;
1077	fmtstr[len] = ']'; fmtstr[len + 1] = '\0';
1078	// printf( "incl/excl %s\n", fmtstr );
1079	fmt( is, fmtstr, f.s );
1080	return is;
1081	} // ?\|?
1082	void ?\|?( istype & is, _Istream_Cstr f ) {
1083	(istype &)(is \| f); ends( is );
1084	} // ?\|?
1085
1086	istype & ?\|?( istype & is, _Istream_Char f ) {
1087	fmt( is, "%*c" ); // argument variable unused
1088	return is;
1089	} // ?\|?
1090	void ?\|?( istype & is, _Istream_Char f ) {
1091	(istype &)(is \| f); ends( is );
1092	} // ?\|?
1093	} // distribution
1094
1095	#define InputFMTImpl( T, CODE ) \
1096	forall( istype & \| basic_istream( istype ) ) { \
1097	istype & ?\|?( istype & is, _Istream_Manip(T) f ) { \
1098	enum { size = 16 }; \
1099	char fmtstr[size]; \
1100	if ( f.wd == -1 ) { \
1101	snprintf( fmtstr, size, "%%%s%s", f.ignore ? "*" : "", CODE ); \
1102	} else { \
1103	snprintf( fmtstr, size, "%%%s%d%s", f.ignore ? "*" : "", f.wd, CODE ); \
1104	} /* if */ \
1105	/* printf( "%d %s %p\n", f.wd, fmtstr, &f.val ); */ \
1106	fmt( is, fmtstr, &f.val ); \
1107	return is; \
1108	} /* ?\|? */ \
1109	void ?\|?( istype & is, _Istream_Manip(T) f ) { \
1110	(istype &)(is \| f); ends( is ); \
1111	} /* ?\|? */ \
1112	} // distribution
1113
1114	InputFMTImpl( signed char, "hhi" )
1115	InputFMTImpl( unsigned char, "hhi" )
1116	InputFMTImpl( signed short int, "hi" )
1117	InputFMTImpl( unsigned short int, "hi" )
1118	InputFMTImpl( signed int, "i" )
1119	InputFMTImpl( unsigned int, "i" )
1120	InputFMTImpl( signed long int, "li" )
1121	InputFMTImpl( unsigned long int, "li" )
1122	InputFMTImpl( signed long long int, "lli" )
1123	InputFMTImpl( unsigned long long int, "lli" )
1124
1125	InputFMTImpl( float, "f" )
1126	InputFMTImpl( double, "lf" )
1127	InputFMTImpl( long double, "Lf" )
1128
1129	forall( istype & \| basic_istream( istype ) ) {
1130	istype & ?\|?( istype & is, _Istream_Manip(float _Complex) fc ) {
1131	float re, im;
1132	_Istream_Manip(float) fmtuc @= { re, fc.wd, fc.ignore };
1133	is \| fmtuc;
1134	&fmtuc.val = &im;
1135	is \| fmtuc;
1136	if ( ! fc.ignore ) fc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1137	return is;
1138	} // ?\|?
1139	void ?\|?( istype & is, _Istream_Manip(float _Complex) fc ) {
1140	(istype &)(is \| fc); ends( is );
1141	} // ?\|?
1142
1143	istype & ?\|?( istype & is, _Istream_Manip(double _Complex) dc ) {
1144	double re, im;
1145	_Istream_Manip(double) fmtuc @= { re, dc.wd, dc.ignore };
1146	is \| fmtuc;
1147	&fmtuc.val = &im;
1148	is \| fmtuc;
1149	if ( ! dc.ignore ) dc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1150	return is;
1151	} // ?\|?
1152	void ?\|?( istype & is, _Istream_Manip(double _Complex) dc ) {
1153	(istype &)(is \| dc); ends( is );
1154	} // ?\|?
1155
1156	istype & ?\|?( istype & is, _Istream_Manip(long double _Complex) ldc ) {
1157	long double re, im;
1158	_Istream_Manip(long double) fmtuc @= { re, ldc.wd, ldc.ignore };
1159	is \| fmtuc;
1160	&fmtuc.val = &im;
1161	is \| fmtuc;
1162	if ( ! ldc.ignore ) ldc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1163	return is;
1164	} // ?\|?
1165	void ?\|?( istype & is, _Istream_Manip(long double _Complex) ldc ) {
1166	(istype &)(is \| ldc); ends( is );
1167	} // ?\|?
1168	} // distribution
1169
1170	// Local Variables: //
1171	// tab-width: 4 //
1172	// compile-command: "cfa iostream.cfa" //
1173	// End: //

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