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Last change on this file since b19b362 was b19b362, checked in by Peter A. Buhr <pabuhr@…>, 3 days ago
add quote output manipulator for printing char, char *, string surrounded by quote characters
Property mode set to `100644`
File size: 49.8 KB

Rev	Line
[86bd7c1f]	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	//
[b117e0c]	7	// iostream.cfa --
[86bd7c1f]	8	//
[90c3b1c]	9	// Author : Peter A. Buhr
[86bd7c1f]	10	// Created On : Wed May 27 17:56:53 2015
[e24f13a]	11	// Last Modified By : Peter A. Buhr
[b19b362]	12	// Last Modified On : Sun May 3 08:08:29 2026
	13	// Update Count : 2241
[86bd7c1f]	14	//
[51b73452]	15
[58b6d1b]	16	#include "iostream.hfa"
[d3b7937]	17
[51b73452]	18	#include <stdio.h>
[53a6c2a]	19	#include <stdbool.h> // true/false
[e59e663]	20	#include <stdint.h> // UINT64_MAX
[6026628]	21	#include <float.h> // DBL_DIG, LDBL_DIG
	22	#include <complex.h> // creal, cimag
[0860d9c]	23	#include <ctype.h> // isspace
[aa25216]	24	//#include <stdio.h>
	25
[6026628]	26	extern "C" {
[44574f2]	27	extern size_t strlen (const char *__s) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));
[3c573e9]	28	extern int strcmp (const char __s1, const char __s2) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));
	29	extern char strcpy (char __restrict __dest, const char *__restrict __src) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
	30	extern void memcpy (void __restrict __dest, const void *__restrict __src, size_t __n) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
[0860d9c]	31	extern char strchr(const char str, int ch);
[3c573e9]	32	} // extern "C"
[51b73452]	33
[7cfef0d]	34	#include "math.hfa" // isfinite, floor, ceiling_div
	35	#include "bitmanip.hfa" // high1
[7fd71c7]	36
[cce4648]	37	#pragma GCC visibility push(default)
[61c7239]	38
[94d2544]	39
[8d321f9]	40	// ********************************* ostream *********************************
[61c7239]	41
	42
[85d8153]	43	forall( ostype & \| basic_ostream( ostype ) ) {
[ae0c1c3]	44	ostype & ?\|?( ostype & os, bool b ) with ( basic_ostream_table ) {
[6c5d92f]	45	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[3ce0d440]	46	fmt( os, "%s", b ? "true" : "false" );
	47	return os;
	48	} // ?\|?
[b12e4ad]	49	OSTYPE_VOID_IMPL( os, bool )
[51b73452]	50
[ae0c1c3]	51	ostype & ?\|?( ostype & os, char c ) with ( basic_ostream_table ) {
[200fcb3]	52	fmt( os, "%c", c );
[6c5d92f]	53	if ( c == '\n' ) setNL$( os, true );
[b19b362]	54	return nosep( os ); // no separator after char
[200fcb3]	55	} // ?\|?
[b12e4ad]	56	OSTYPE_VOID_IMPL( os, char )
[3ce0d440]	57
[ae0c1c3]	58	ostype & ?\|?( ostype & os, signed char sc ) with ( basic_ostream_table ) {
[6c5d92f]	59	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	60	fmt( os, "%'hhd", sc );
[3ce0d440]	61	return os;
	62	} // ?\|?
[b12e4ad]	63	OSTYPE_VOID_IMPL( os, signed char )
[3ce0d440]	64
[ae0c1c3]	65	ostype & ?\|?( ostype & os, unsigned char usc ) with ( basic_ostream_table ) {
[6c5d92f]	66	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	67	fmt( os, "%'hhu", usc );
[3ce0d440]	68	return os;
	69	} // ?\|?
[b12e4ad]	70	OSTYPE_VOID_IMPL( os, unsigned char )
[3ce0d440]	71
[ae0c1c3]	72	ostype & ?\|?( ostype & os, short int si ) with ( basic_ostream_table ) {
[6c5d92f]	73	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	74	fmt( os, "%'hd", si );
[3ce0d440]	75	return os;
	76	} // ?\|?
[b12e4ad]	77	OSTYPE_VOID_IMPL( os, short int )
[3ce0d440]	78
[ae0c1c3]	79	ostype & ?\|?( ostype & os, unsigned short int usi ) with ( basic_ostream_table ) {
[6c5d92f]	80	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	81	fmt( os, "%'hu", usi );
[3ce0d440]	82	return os;
	83	} // ?\|?
[b12e4ad]	84	OSTYPE_VOID_IMPL( os, unsigned short int )
[3ce0d440]	85
[ae0c1c3]	86	ostype & ?\|?( ostype & os, int i ) with ( basic_ostream_table ) {
[6c5d92f]	87	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	88	fmt( os, "%'d", i );
[3ce0d440]	89	return os;
	90	} // ?\|?
[b12e4ad]	91	OSTYPE_VOID_IMPL( os, int )
[3ce0d440]	92
[ae0c1c3]	93	ostype & ?\|?( ostype & os, unsigned int ui ) with ( basic_ostream_table ) {
[6c5d92f]	94	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	95	fmt( os, "%'u", ui );
[3ce0d440]	96	return os;
	97	} // ?\|?
[b12e4ad]	98	OSTYPE_VOID_IMPL( os, unsigned int )
[3ce0d440]	99
[ae0c1c3]	100	ostype & ?\|?( ostype & os, long int li ) with ( basic_ostream_table ) {
[6c5d92f]	101	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	102	fmt( os, "%'ld", li );
[3ce0d440]	103	return os;
	104	} // ?\|?
[b12e4ad]	105	OSTYPE_VOID_IMPL( os, long int )
[3ce0d440]	106
[ae0c1c3]	107	ostype & ?\|?( ostype & os, unsigned long int uli ) with ( basic_ostream_table ) {
[6c5d92f]	108	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	109	fmt( os, "%'lu", uli );
[3ce0d440]	110	return os;
	111	} // ?\|?
[b12e4ad]	112	OSTYPE_VOID_IMPL( os, unsigned long int )
[3ce0d440]	113
[ae0c1c3]	114	ostype & ?\|?( ostype & os, long long int lli ) with ( basic_ostream_table ) {
[6c5d92f]	115	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	116	fmt( os, "%'lld", lli );
[3ce0d440]	117	return os;
	118	} // ?\|?
[b12e4ad]	119	OSTYPE_VOID_IMPL( os, long long int )
[3ce0d440]	120
[ae0c1c3]	121	ostype & ?\|?( ostype & os, unsigned long long int ulli ) with ( basic_ostream_table ) {
[6c5d92f]	122	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	123	fmt( os, "%'llu", ulli );
[3ce0d440]	124	return os;
	125	} // ?\|?
[b12e4ad]	126	OSTYPE_VOID_IMPL( os, unsigned long long int )
[3ce0d440]	127
[ef3ac46]	128	#if defined( __SIZEOF_INT128__ )
[bd5b443]	129	// UINT64_MAX 18_446_744_073_709_551_615_ULL
	130	#define P10_UINT64 10_000_000_000_000_000_000_ULL // 19 zeroes
	131
[ae0c1c3]	132	static inline void base10_128( ostype & os, unsigned int128 val ) with ( basic_ostream_table ) {
[ef3ac46]	133	#if defined(__GNUC__) && __GNUC_PREREQ(7,0) // gcc version >= 7
[2c60c644]	134	if ( val > P10_UINT64 ) {
[ef3ac46]	135	#else
[ffa48a8]	136	if ( (uint64_t)(val >> 64) != 0 \|\| (uint64_t)val > P10_UINT64 ) { // patch gcc 5 & 6 -O3 bug
[ef3ac46]	137	#endif // __GNUC_PREREQ(7,0)
[bd5b443]	138	base10_128( os, val / P10_UINT64 ); // recursive
	139	fmt( os, "%.19lu", (uint64_t)(val % P10_UINT64) );
	140	} else {
	141	fmt( os, "%lu", (uint64_t)val );
	142	} // if
	143	} // base10_128
	144
[ae0c1c3]	145	static inline void base10_128( ostype & os, int128 val ) with ( basic_ostream_table ) {
[bd5b443]	146	if ( val < 0 ) {
	147	fmt( os, "-" ); // leading negative sign
	148	val = -val;
	149	} // if
	150	base10_128( os, (unsigned int128)val ); // print zero/positive value
	151	} // base10_128
	152
[ae0c1c3]	153	ostype & ?\|?( ostype & os, int128 llli ) with ( basic_ostream_table ) {
[6c5d92f]	154	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[bd5b443]	155	base10_128( os, llli );
	156	return os;
	157	} // ?\|?
[b12e4ad]	158	OSTYPE_VOID_IMPL( os, int128 )
[bd5b443]	159
[ae0c1c3]	160	ostype & ?\|?( ostype & os, unsigned int128 ullli ) with ( basic_ostream_table ) {
[6c5d92f]	161	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[bd5b443]	162	base10_128( os, ullli );
	163	return os;
	164	} // ?\|?
[b12e4ad]	165	OSTYPE_VOID_IMPL( os, unsigned int128 )
[ef3ac46]	166	#endif // __SIZEOF_INT128__
[bd5b443]	167
[94d2544]	168	#define PRINT_WITH_DP( os, format, val, ... ) \
[e63326b]	169	{ \
	170	enum { size = 48 }; \
	171	char buf[size]; \
	172	int len = snprintf( buf, size, format, ##__VA_ARGS__, val ); \
	173	fmt( os, "%s", buf ); \
[fd4c009]	174	if ( isfinite( val ) ) { /* if number, print decimal point when no fraction or exponent */ \
[f6a4917]	175	for ( i; 0 ~ @ ) { \
[e63326b]	176	if ( i == len ) { fmt( os, "." ); break; } \
[09a767e]	177	if ( buf[i] == '.' \|\| buf[i] == 'e' \|\| buf[i] == 'E' \|\| \
	178	buf[i] == 'p' \|\| buf[i] == 'P' ) break; /* decimal point or scientific ? */ \
[e63326b]	179	} /* for */ \
	180	} /* if */ \
	181	}
[b2ac656]	182
[ae0c1c3]	183	ostype & ?\|?( ostype & os, float f ) with ( basic_ostream_table ) {
[6c5d92f]	184	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[94d2544]	185	PRINT_WITH_DP( os, "%'g", f );
[3ce0d440]	186	return os;
	187	} // ?\|?
[b12e4ad]	188	OSTYPE_VOID_IMPL( os, float )
[3ce0d440]	189
[ae0c1c3]	190	ostype & ?\|?( ostype & os, double d ) with ( basic_ostream_table ) {
[6c5d92f]	191	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[94d2544]	192	PRINT_WITH_DP( os, "%'.*lg", d, DBL_DIG );
[3ce0d440]	193	return os;
	194	} // ?\|?
[b12e4ad]	195	OSTYPE_VOID_IMPL( os, double )
[3ce0d440]	196
[ae0c1c3]	197	ostype & ?\|?( ostype & os, long double ld ) with ( basic_ostream_table ) {
[6c5d92f]	198	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[94d2544]	199	PRINT_WITH_DP( os, "%'.*Lg", ld, LDBL_DIG );
[3ce0d440]	200	return os;
	201	} // ?\|?
[b12e4ad]	202	OSTYPE_VOID_IMPL( os, long double )
[3ce0d440]	203
[ae0c1c3]	204	ostype & ?\|?( ostype & os, float _Complex fc ) with ( basic_ostream_table ) {
[6c5d92f]	205	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[94d2544]	206	PRINT_WITH_DP( os, "%'g", crealf( fc ) );
	207	PRINT_WITH_DP( os, "%'+g", cimagf( fc ) );
[3c5dee4]	208	fmt( os, "i" );
[3ce0d440]	209	return os;
	210	} // ?\|?
[b12e4ad]	211	OSTYPE_VOID_IMPL( os, float _Complex )
[3ce0d440]	212
[ae0c1c3]	213	ostype & ?\|?( ostype & os, double _Complex dc ) with ( basic_ostream_table ) {
[6c5d92f]	214	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[b2ac656]	215	// os \| creal( dc ) \| nonl;
[94d2544]	216	PRINT_WITH_DP( os, "%'.*lg", creal( dc ), DBL_DIG );
	217	PRINT_WITH_DP( os, "%'+.*lg", cimag( dc ), DBL_DIG );
[3c5dee4]	218	fmt( os, "i" );
[3ce0d440]	219	return os;
	220	} // ?\|?
[b12e4ad]	221	OSTYPE_VOID_IMPL( os, double _Complex )
[3ce0d440]	222
[ae0c1c3]	223	ostype & ?\|?( ostype & os, long double _Complex ldc ) with ( basic_ostream_table ) {
[6c5d92f]	224	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[b2ac656]	225	// os \| creall( ldc ) \|\| nonl;
[94d2544]	226	PRINT_WITH_DP( os, "%'.*Lg", creall( ldc ), LDBL_DIG );
	227	PRINT_WITH_DP( os, "%'+.*Lg", cimagl( ldc ), LDBL_DIG );
[3c5dee4]	228	fmt( os, "i" );
[3ce0d440]	229	return os;
	230	} // ?\|?
[b12e4ad]	231	OSTYPE_VOID_IMPL( os, long double _Complex )
[3ce0d440]	232
[ae0c1c3]	233	ostype & ?\|?( ostype & os, const char s[] ) with ( basic_ostream_table ) {
[3ce0d440]	234	enum { Open = 1, Close, OpenClose };
[28c2933d]	235	static const unsigned char mask[256] @= { // 256 covers all Latin-1 characters
[3ce0d440]	236	// opening delimiters, no space after
[1a7203d]	237	['('] = Open, ['['] = Open, ['{'] = Open,
	238	['='] = Open, ['$'] = Open, [(unsigned char)'£'] = Open, [(unsigned char)'¥'] = Open,
	239	[(unsigned char)'¡'] = Open, [(unsigned char)'¿'] = Open, [(unsigned char)'«'] = Open,
[3ce0d440]	240	// closing delimiters, no space before
[1a7203d]	241	[','] = Close, ['.'] = Close, [';'] = Close, ['!'] = Close, ['?'] = Close,
	242	['%'] = Close, [(unsigned char)'¢'] = Close, [(unsigned char)'»'] = Close,
	243	[')'] = Close, [']'] = Close, ['}'] = Close,
[3ce0d440]	244	// opening-closing delimiters, no space before or after
[1a7203d]	245	['\''] = OpenClose, ['`'] = OpenClose, ['"'] = OpenClose, [':'] = OpenClose,
	246	[' '] = OpenClose, ['\f'] = OpenClose, ['\n'] = OpenClose, ['\r'] = OpenClose, ['\t'] = OpenClose, ['\v'] = OpenClose, // isspace
[3ce0d440]	247	}; // mask
	248
[6a33e40]	249	if ( s == 0p ) { fmt( os, "%s", "0p" ); return os; } // null pointer
[f5d9c37]	250	if ( s[0] == '\0' ) { nosep( os ); return os; } // null string => no leading/trailing separator
[3ce0d440]	251
	252	// first character IS NOT spacing or closing punctuation => add left separator
[e474cf09]	253	unsigned char ch = s[0]; // must make unsigned
[6c5d92f]	254	if ( sepPrt$( os ) && mask[ ch ] != Close && mask[ ch ] != OpenClose ) {
	255	fmt( os, "%s", sepGetCur$( os ) );
[3ce0d440]	256	} // if
	257
	258	// if string starts line, must reset to determine open state because separator is off
[6c5d92f]	259	sepReset$( os ); // reset separator
[3ce0d440]	260
	261	// last character IS spacing or opening punctuation => turn off separator for next item
[85d8153]	262	int len = strlen( s );
[e474cf09]	263	ch = s[len - 1]; // must make unsigned
[85d8153]	264	fmt( os, "%s", s ); // fmt resets seperator, but reset it again
[6c5d92f]	265	if ( sepPrt$( os ) && mask[ ch ] != Open && mask[ ch ] != OpenClose ) {
[f5d9c37]	266	sep( os );
[3ce0d440]	267	} else {
[f5d9c37]	268	nosep( os );
[3ce0d440]	269	} // if
[6c5d92f]	270	if ( ch == '\n' ) setNL$( os, true ); // check AFTER sepPrt$ call above as it resets NL flag
[85d8153]	271	return os;
[3ce0d440]	272	} // ?\|?
[b12e4ad]	273	OSTYPE_VOID_IMPL( os, const char * )
[3ce0d440]	274
[e7a8f65]	275	// ostype & ?\|?( ostype & os, const char16_t s[] ) {
[6c5d92f]	276	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[e474cf09]	277	// fmt( os, "%ls", s );
[3ce0d440]	278	// return os;
	279	// } // ?\|?
[d3b7937]	280
[3ce0d440]	281	// #if ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 ) // char32_t == wchar_t => ambiguous
[e7a8f65]	282	// ostype & ?\|?( ostype & os, const char32_t s[] ) {
[6c5d92f]	283	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[e474cf09]	284	// fmt( os, "%ls", s );
[3ce0d440]	285	// return os;
	286	// } // ?\|?
	287	// #endif // ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 )
[d3b7937]	288
[e7a8f65]	289	// ostype & ?\|?( ostype & os, const wchar_t s[] ) {
[6c5d92f]	290	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[e474cf09]	291	// fmt( os, "%ls", s );
[3ce0d440]	292	// return os;
	293	// } // ?\|?
	294
[ae0c1c3]	295	ostype & ?\|?( ostype & os, const void * p ) with ( basic_ostream_table ) {
[6c5d92f]	296	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[3ce0d440]	297	fmt( os, "%p", p );
	298	return os;
	299	} // ?\|?
[b12e4ad]	300	OSTYPE_VOID_IMPL( os, const void * )
[3ce0d440]	301
	302	// manipulators
	303	ostype & ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) {
[e474cf09]	304	return manip( os );
[200fcb3]	305	} // ?\|?
[ae0c1c3]	306	void ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) with ( basic_ostream_table ) {
[e474cf09]	307	manip( os );
[6c5d92f]	308	if ( getPrt$( os ) ) ends( os ); // something printed ?
	309	setPrt$( os, false ); // turn off
[3ce0d440]	310	} // ?\|?
	311
[ae0c1c3]	312	ostype & nl( ostype & os ) with ( basic_ostream_table ) {
[9d362a0]	313	(ostype &)(os \| '\n');
[6c5d92f]	314	setPrt$( os, false ); // turn off
	315	setNL$( os, true );
[f5d9c37]	316	return nosep( os ); // prepare for next line
[200fcb3]	317	} // nl
	318
[ae0c1c3]	319	ostype & nonl( ostype & os ) with ( basic_ostream_table ) {
[6c5d92f]	320	setPrt$( os, false ); // turn off
[3ce0d440]	321	return os;
[200fcb3]	322	} // nonl
[3ce0d440]	323
[ae0c1c3]	324	ostype & nlOn( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	325	nlOn( os ); // call void returning
[3ce0d440]	326	return os;
[f5d9c37]	327	} // nlOn
[3ce0d440]	328
[ae0c1c3]	329	ostype & nlOff( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	330	nlOff( os ); // call void returning
[3ce0d440]	331	return os;
[f5d9c37]	332	} // nlOff
[6de9f4a]	333
[ae0c1c3]	334	ostype & sepVal( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	335	return (ostype &)(os \| sepGet( os ));
	336	} // sepVal
	337
[ae0c1c3]	338	ostype & sepTupleVal( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	339	return os \| sepGetTuple( os );
	340	} // sepTupleVal
	341
[ae0c1c3]	342	ostype & sep( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	343	sep( os ); // call void returning
[3ce0d440]	344	return os;
[f5d9c37]	345	} // sep
[b6dc097]	346
[ae0c1c3]	347	ostype & nosep( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	348	nosep( os ); // call void returning
[3ce0d440]	349	return os;
[f5d9c37]	350	} // nosep
[cf16f94]	351
[ae0c1c3]	352	ostype & sepOn( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	353	sepOn( os ); // call void returning
[200fcb3]	354	return os;
[f5d9c37]	355	} // sepOn
[200fcb3]	356
[ae0c1c3]	357	ostype & sepOff( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	358	sepOff( os ); // call void returning
[200fcb3]	359	return os;
[f5d9c37]	360	} // sepOff
[85d8153]	361	} // distribution
[e474cf09]	362
[c443d1d]	363	// tuples
[fd54fef]	364	forall( ostype &, T, Params... \| writeable( T, ostype ) \| { ostype & ?\|?( ostype &, Params ); } ) {
[ae0c1c3]	365	ostype & ?\|?( ostype & os, T arg, Params rest ) with ( basic_ostream_table ) {
[9d362a0]	366	(ostype &)(os \| arg); // print first argument
[6c5d92f]	367	sepSetCur$( os, sepGetTuple( os ) ); // switch to tuple separator
[9d362a0]	368	(ostype &)(os \| rest); // print remaining arguments
[6c5d92f]	369	sepSetCur$( os, sepGet( os ) ); // switch to regular separator
[200fcb3]	370	return os;
	371	} // ?\|?
[ae0c1c3]	372	void ?\|?( ostype & os, T arg, Params rest ) with ( basic_ostream_table ) {
[65240bb]	373	// (ostype &)(?\|?( os, arg, rest )); ends( os );
[9d362a0]	374	(ostype &)(os \| arg); // print first argument
[6c5d92f]	375	sepSetCur$( os, sepGetTuple( os ) ); // switch to tuple separator
[9d362a0]	376	(ostype &)(os \| rest); // print remaining arguments
[6c5d92f]	377	sepSetCur$( os, sepGet( os ) ); // switch to regular separator
[65240bb]	378	ends( os );
[200fcb3]	379	} // ?\|?
	380	} // distribution
[c443d1d]	381
[61c7239]	382	// writes the range [begin, end) to the given stream
[fd54fef]	383	forall( ostype &, elt_type \| writeable( elt_type, ostype ), iterator_type \| iterator( iterator_type, elt_type ) ) {
[61c7239]	384	void write( iterator_type begin, iterator_type end, ostype & os ) {
	385	void print( elt_type i ) { os \| i; }
	386	for_each( begin, end, print );
	387	} // ?\|?
	388
	389	void write_reverse( iterator_type begin, iterator_type end, ostype & os ) {
	390	void print( elt_type i ) { os \| i; }
	391	for_each_reverse( begin, end, print );
	392	} // ?\|?
	393	} // distribution
	394
[8d321f9]	395	// ********************************* manipulators *********************************
[3c573e9]	396
[8d321f9]	397	// ********************************* integral *********************************
[3c573e9]	398
	399	static const char * shortbin[] = { "0", "1", "10", "11", "100", "101", "110", "111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
	400	static const char * longbin[] = { "0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
	401
	402	// Default prefix for non-decimal prints is 0b, 0, 0x.
[94d2544]	403	#define INTEGRAL_FMT_IMPL( T, IFMTNP, IFMTP ) \
[85d8153]	404	forall( ostype & \| basic_ostream( ostype ) ) { \
[ae0c1c3]	405	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) with ( basic_ostream_table ) { \
[6c5d92f]	406	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) ); \
[3c573e9]	407	\
	408	if ( f.base == 'b' \|\| f.base == 'B' ) { /* bespoke binary format */ \
[7fd71c7]	409	int bits = high1( f.val ); /* position of most significant bit */ \
	410	if ( bits == 0 ) bits = 1; /* 0 value => force one bit to print */ \
[c7978c0]	411	int spaces; \
[3c573e9]	412	if ( ! f.flags.left ) { /* right justified ? */ \
	413	/* Note, base prefix then zero padding or spacing then prefix. */ \
[c7978c0]	414	if ( f.flags.pc ) { \
	415	spaces = f.wd - f.pc; \
	416	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
	417	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
[3c573e9]	418	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
[c7978c0]	419	spaces = f.pc - bits; \
[3c573e9]	420	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
	421	} else { \
[c7978c0]	422	spaces = f.wd - bits; \
	423	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
	424	if ( f.flags.pad0 ) { \
	425	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
	426	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
	427	} else { \
	428	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
	429	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
	430	} /* if */ \
	431	} /* if */ \
	432	} else { \
	433	if ( ! f.flags.nobsdp ) fmt( os, "0%c", f.base ); \
	434	if ( f.flags.pc ) { \
	435	spaces = f.pc - bits; \
	436	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
	437	spaces = f.wd - f.pc; \
	438	} else { /* pad0 flag ignored with left flag */ \
	439	spaces = f.wd - bits; \
[3c573e9]	440	} /* if */ \
[c7978c0]	441	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
[3c573e9]	442	} /* if */ \
[fd4d3017]	443	int shift = floor( bits - 1, 4 ); \
[3c573e9]	444	typeof( f.val ) temp = f.val; \
	445	fmt( os, "%s", shortbin[(temp >> shift) & 0xf] ); \
	446	for () { \
	447	shift -= 4; \
	448	if ( shift < 0 ) break; \
	449	temp = f.val; \
	450	fmt( os, "%s", longbin[(temp >> shift) & 0xf] ); \
	451	} /* for */ \
	452	if ( f.flags.left && spaces > 0 ) fmt( os, "%*s", spaces, " " ); \
	453	return os; \
[2c60c644]	454	} /* if */ \
[3c573e9]	455	\
	456	char fmtstr[sizeof(IFMTP)]; /* sizeof includes '\0' */ \
	457	if ( ! f.flags.pc ) memcpy( &fmtstr, IFMTNP, sizeof(IFMTNP) ); \
	458	else memcpy( &fmtstr, IFMTP, sizeof(IFMTP) ); \
[0c51f9ad]	459	int star = 5; /* position before first '' / \
[3c573e9]	460	\
	461	/* Insert flags into spaces before '', from right to left. / \
	462	if ( ! f.flags.nobsdp ) { fmtstr[star] = '#'; star -= 1; } \
	463	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
[2c60c644]	464	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
[3c573e9]	465	if ( f.flags.pad0 && ! f.flags.pc ) { fmtstr[star] = '0'; star -= 1; } \
[0c51f9ad]	466	fmtstr[star] = '\''; star -= 1; /* locale */ \
[3c573e9]	467	fmtstr[star] = '%'; \
[09a767e]	468	\
	469	/* Special case printing 0 in hexadecimal as printf does not put the base. */ \
	470	if ( (f.base == 'x' \| f.base == 'X') && ! f.flags.nobsdp && f.val == 0 ) { \
	471	fmt( os, f.base == 'x' ? "0x" : "0X" ); \
	472	f.wd -= 2; \
	473	if ( f.wd < 0 ) f.wd = 1; \
	474	} /* if */ \
[3c573e9]	475	\
	476	if ( ! f.flags.pc ) { /* no precision */ \
	477	fmtstr[sizeof(IFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
[2c60c644]	478	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
[3c573e9]	479	fmt( os, &fmtstr[star], f.wd, f.val ); \
	480	} else { /* precision */ \
	481	fmtstr[sizeof(IFMTP)-2] = f.base; /* sizeof includes '\0' */ \
[2c60c644]	482	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
[3c573e9]	483	fmt( os, &fmtstr[star], f.wd, f.pc, f.val ); \
	484	} /* if */ \
	485	return os; \
	486	} /* ?\|? */ \
[b12e4ad]	487	OSTYPE_VOID_IMPL( os, _Ostream_Manip(T) ) \
[3c573e9]	488	} // distribution
	489
[94d2544]	490	INTEGRAL_FMT_IMPL( signed char, " hh ", " .*hh " )
	491	INTEGRAL_FMT_IMPL( unsigned char, " hh ", " .*hh " )
	492	INTEGRAL_FMT_IMPL( signed short int, " h ", " .*h " )
	493	INTEGRAL_FMT_IMPL( unsigned short int, " h ", " .*h " )
	494	INTEGRAL_FMT_IMPL( signed int, " * ", " . " )
	495	INTEGRAL_FMT_IMPL( unsigned int, " * ", " . " )
	496	INTEGRAL_FMT_IMPL( signed long int, " l ", " .*l " )
	497	INTEGRAL_FMT_IMPL( unsigned long int, " l ", " .*l " )
	498	INTEGRAL_FMT_IMPL( signed long long int, " ll ", " .*ll " )
	499	INTEGRAL_FMT_IMPL( unsigned long long int, " ll ", " .*ll " )
[bd5b443]	500
[2c60c644]	501
	502	#if defined( __SIZEOF_INT128__ )
	503	// Default prefix for non-decimal prints is 0b, 0, 0x.
[85d8153]	504	forall( ostype & \| basic_ostream( ostype ) )
[2c60c644]	505	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 ) {
	506	int wd = 1; // f.wd is never 0 because 0 implies left-pad
	507	if ( val > power ) { // subdivide value into printable 64-bit values
	508	base_128( os, val / power, power, f, maxdig, bits, cnt + 1 ); // recursive
	509	f.val = val % power;
[ac9ba12]	510	if ( cnt == 1 && f.flags.left ) { wd = f.wd; f.wd = maxdig; } // copy f.wd and reset for printing middle chunk
[7d9bbef]	511	// printf( "R val:%#lx(%lu) wd:%u pc:%u base:%c neg:%d pc:%d left:%d nobsdp:%d sign:%d pad0:%d\n",
[737bf73]	512	// 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 );
[2c60c644]	513	(ostype &)(os \| f);
	514	if ( cnt == 1 ) {
[ac9ba12]	515	if ( f.flags.left ) { wd -= maxdig; f.wd = wd < 0 ? 1 : wd; } // update and restore f.wd for printing end chunk
[f5d9c37]	516	nosep( os ); // no seperator between chunks
[2c60c644]	517	} // if
[ac9ba12]	518	} else { // print start chunk
[2c60c644]	519	f.val = val;
	520	// f.pc is unsigned => use wd
	521	if ( f.flags.pc && f.pc > maxdig * cnt ) { wd = f.pc - maxdig * cnt; f.pc = wd < 0 ? 0 : wd; }
	522	else { f.flags.pc = false; f.pc = 0; }
	523
	524	if ( ! f.flags.left ) { // right justify
	525	wd = f.wd - maxdig * cnt;
	526	f.wd = wd < 0 ? 1 : wd;
	527	wd = maxdig;
	528	} else { // left justify
	529	if ( cnt != 0 ) { // value >= 2^64 ?
	530	unsigned int dig, bs = 0;
[ac9ba12]	531	// compute size of prefix digits and base
[2c60c644]	532	if ( f.base == 'd' \|\| f.base == 'u' ) { // no base prefix
	533	dig = ceil( log10( f.val ) ); // use floating-point
	534	if ( f.base == 'd' && (f.flags.neg \|\| f.flags.sign) ) bs = 1; // sign ?
	535	} else {
[53fd995]	536	dig = ceiling_div( high1( f.val ), bits );
[2c60c644]	537	if ( ! f.flags.nobsdp ) { // base prefix ?
	538	if ( f.base == 'o' ) {
	539	// 0 prefix for octal is not added for precision with leading zero
	540	if ( f.pc <= dig ) bs = 1; // 1 character prefix
	541	} else bs = 2; // 2 character prefix
	542	} // if
	543	} // if
	544	wd = f.wd - (f.pc > dig ? f.pc : dig) - bs; // precision > leading digits ?
	545	if ( wd < 0 ) wd = 1;
	546	f.wd = 1;
	547	} // if
	548	// all manipulators handled implicitly for value < 2^64
	549	} // if
	550	// prior checks ensure wd not negative
	551
	552	if ( f.flags.neg ) f.val = -f.val;
[7d9bbef]	553	// printf( "L val:%#lx(%lu) wd:%u pc:%u base:%c neg:%d pc:%d left:%d nobsdp:%d sign:%d pad0:%d\n",
[737bf73]	554	// 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 );
[2c60c644]	555	(ostype &)(os \| f);
	556
[ac9ba12]	557	// remaining middle and end chunks are padded with 0s on the left
[2c60c644]	558	if ( ! f.flags.left ) { f.flags.pad0 = true; f.flags.pc = false; } // left pad with 0s
	559	else { f.pc = maxdig; f.flags.pc = true; } // left pad with precision
[ac9ba12]	560
[f5d9c37]	561	if ( cnt != 0 ) nosep( os ); // no seperator between chunks
[ac9ba12]	562	f.wd = wd; // reset f.wd for next chunk
	563	f.flags.sign = false; // no leading +/- sign
	564	f.flags.nobsdp = true; // no leading base prefix
[2c60c644]	565	} // if
	566	} // base_128
	567
[94d2544]	568	#define INTEGRAL_FMT_IMPL128( T ) \
[85d8153]	569	forall( ostype & \| basic_ostream( ostype ) ) { \
[2c60c644]	570	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
	571	_Ostream_Manip(uint64_t) fmt; \
	572	fmt.[wd, pc, base, all] = f.[wd, pc, base, all]; \
	573	if ( f.base == 'b' \| f.base == 'B' ) { \
	574	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 64, 1 ); \
	575	} else if ( f.base == 'o' ) { \
	576	base_128( os, f.val, (unsigned int128)1 << 63, fmt, 21, 3 ); \
	577	} else if ( f.base == 'd' \|\| f.base == 'u' ) { \
	578	if ( f.base == 'd' && f.val < 0 ) { f.val = -f.val; fmt.flags.neg = true; } \
	579	base_128( os, f.val, (unsigned int128)10_000_000_000_000_000_000UL, fmt, 19, 0 ); \
	580	} else { \
	581	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 16, 4 ); \
	582	} /* if */ \
	583	return os; \
	584	} /* ?\|? */ \
[b12e4ad]	585	OSTYPE_VOID_IMPL( os, _Ostream_Manip(T) ) \
[2c60c644]	586	} // distribution
	587
[94d2544]	588	INTEGRAL_FMT_IMPL128( int128 )
	589	INTEGRAL_FMT_IMPL128( unsigned int128 )
[2c60c644]	590	#endif // __SIZEOF_INT128__
[bd5b443]	591
[8d321f9]	592	// ********************************* floating point *********************************
[3c573e9]	593
[fd4c009]	594	static const char *suffixes[] = {
	595	"y", "z", "a", "f", "p", "n", "u", "m", "",
	596	"K", "M", "G", "T", "P", "E", "Z", "Y"
[737bf73]	597	};
[fd4c009]	598	#define SUFFIXES_START (-24) /* Smallest power for which there is a suffix defined. */
	599	#define SUFFIXES_END (SUFFIXES_START + (int)((sizeof(suffixes) / sizeof(char ) - 1) 3))
	600
[94d2544]	601	#define PRINT_WITH_DP2( os, format, ... ) \
[3c573e9]	602	{ \
[fd4c009]	603	if ( ! f.flags.eng ) { \
	604	len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
[bcbc7e4]	605	if ( isfinite( f.val ) && ! f.flags.nobsdp ) { /* if number, print decimal point when no fraction or exponent */ \
[09a767e]	606	for ( i = 0; i < len && buf[i] != '.' && buf[i] != 'e' && buf[i] != 'E' && \
[bcbc7e4]	607	buf[i] != 'p' && buf[i] != 'P'; i += 1 ); /* decimal point or scientific ? */ \
[fd4c009]	608	if ( i == len ) { \
	609	if ( ! f.flags.left ) { \
	610	buf[i] = '.'; buf[i + 1] = '\0'; \
	611	if ( buf[0] == ' ' ) bufbeg = 1; /* decimal point within width */ \
	612	} else { \
	613	for ( i = 0; i < len && buf[i] != ' '; i += 1 ); /* trailing blank ? */ \
	614	buf[i] = '.'; \
	615	if ( i == len ) buf[i + 1] = '\0'; \
	616	} /* if */ \
[3c573e9]	617	} /* if */ \
	618	} /* if */ \
[fd4c009]	619	} else { \
	620	int exp10, len2; \
	621	eng( f.val, f.pc, exp10 ); /* changes arguments */ \
[b1e614f4]	622	/* printf( "%g %d %d %d %s\n", f.val, f.wd, f.pc, exp10, format ); */ \
[fd4c009]	623	if ( ! f.flags.left && f.wd > 1 ) { \
[b1e614f4]	624	/* Exponent size: 'e', optional minus sign, number of digits: log10(0) => undefined */ \
	625	f.wd -= 1 + (exp10 < 0 ? 1 : 0) + lrint( floor( exp10 == 0 ? 0 : log10( abs( exp10 ) ) ) ) + 1; \
[fd4c009]	626	if ( f.wd < 1 ) f.wd = 1; \
	627	} /* if */ \
	628	len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
	629	if ( f.flags.left ) { \
	630	for ( len -= 1; len > 0 && buf[len] == ' '; len -= 1 ); \
	631	len += 1; \
	632	} /* if */ \
	633	if ( ! f.flags.nobsdp \|\| (exp10 < SUFFIXES_START) \|\| (exp10 > SUFFIXES_END) ) { \
[fb907d3]	634	len2 = snprintf( &buf[len], size - len, "e%d", (int)exp10 /* ambiguity with function exp10 */ ); \
[fd4c009]	635	} else { \
	636	len2 = snprintf( &buf[len], size - len, "%s", suffixes[(exp10 - SUFFIXES_START) / 3] ); \
	637	} /* if */ \
	638	if ( f.flags.left && len + len2 < f.wd ) buf[len + len2] = ' '; \
[3c573e9]	639	} /* if */ \
	640	fmt( os, "%s", &buf[bufbeg] ); \
	641	}
	642
[94d2544]	643	#define FLOATING_POINT_FMT_IMPL( T, DFMTNP, DFMTP ) \
[85d8153]	644	forall( ostype & \| basic_ostream( ostype ) ) { \
[b19b362]	645	static void eng( T & value, int & pc, int & exp10 ) { \
[fd4c009]	646	exp10 = lrint( floor( log10( abs( value ) ) ) ); /* round to desired precision */ \
	647	if ( exp10 < 0 ) exp10 -= 2; \
	648	exp10 = floor( exp10, 3 ); \
	649	value *= pow( 10.0, -exp10 ); \
[0d49efb]	650	if ( pc < 0 ) pc = 3; \
[fd4c009]	651	} /* eng */ \
	652	\
[ae0c1c3]	653	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) with ( basic_ostream_table ) { \
[fd4c009]	654	enum { size = 48 }; \
	655	char buf[size]; \
	656	int bufbeg = 0, i, len; \
	657	\
[6c5d92f]	658	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) ); \
[fd4c009]	659	char fmtstr[sizeof(DFMTP) + 8]; /* sizeof includes '\0' */ \
[3c573e9]	660	if ( ! f.flags.pc ) memcpy( &fmtstr, DFMTNP, sizeof(DFMTNP) ); \
	661	else memcpy( &fmtstr, DFMTP, sizeof(DFMTP) ); \
[b5f17e14]	662	int star = 5; /* position before first '' / \
[3c573e9]	663	\
	664	/* Insert flags into spaces before '', from right to left. / \
	665	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
	666	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
	667	if ( f.flags.pad0 ) { fmtstr[star] = '0'; star -= 1; } \
[b5f17e14]	668	fmtstr[star] = '\''; star -= 1; /* locale */ \
[3c573e9]	669	fmtstr[star] = '%'; \
	670	\
	671	if ( ! f.flags.pc ) { /* no precision */ \
	672	fmtstr[sizeof(DFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
[b1e614f4]	673	/* printf( "%g %d %s\n", f.val, f.wd, &fmtstr[star] ); */ \
[94d2544]	674	PRINT_WITH_DP2( os, &fmtstr[star], f.wd, f.val ) \
[3c573e9]	675	} else { /* precision */ \
	676	fmtstr[sizeof(DFMTP)-2] = f.base; /* sizeof includes '\0' */ \
	677	/* printf( "%g %d %d %s\n", f.val, f.wd, f.pc, &fmtstr[star] ); */ \
[94d2544]	678	PRINT_WITH_DP2( os, &fmtstr[star], f.wd, f.pc, f.val ) \
[3c573e9]	679	} /* if */ \
	680	return os; \
	681	} /* ?\|? */ \
[e3fea42]	682	\
[b12e4ad]	683	OSTYPE_VOID_IMPL( os, _Ostream_Manip(T) ) \
[3c573e9]	684	} // distribution
	685
[94d2544]	686	FLOATING_POINT_FMT_IMPL( double, " * ", " . " )
	687	FLOATING_POINT_FMT_IMPL( long double, " L ", " .*L " )
[3c573e9]	688
[8d321f9]	689	// ********************************* character *********************************
[3c573e9]	690
[85d8153]	691	forall( ostype & \| basic_ostream( ostype ) ) {
[ae0c1c3]	692	ostype & ?\|?( ostype & os, _Ostream_Manip(char) f ) with ( basic_ostream_table ) {
[4f37255]	693	if ( f.base != 'c' ) { // bespoke binary/octal/hex format
[3c573e9]	694	_Ostream_Manip(unsigned char) fmtuc @= { f.val, f.wd, f.pc, f.base, {'\0'} };
	695	fmtuc.flags.pc = f.flags.pc;
	696	fmtuc.flags.nobsdp = f.flags.nobsdp;
[b19b362]	697	return (ostype &)(os \| fmtuc);
	698	} // if
	699	if ( f.flags.quote ) { // print as string
	700	char qv[] = "' '";
	701	qv[1] = f.val;
	702	f.flags.quote = false; // already quoted
	703	_Ostream_Manip(const char *) fmtuc @= { qv, f.wd, f.pc, 's', {f.all} };
[3c573e9]	704	(ostype &)(os \| fmtuc);
[b19b362]	705	return nosep( os ); // no separator after char
[3c573e9]	706	} // if
	707
[6c5d92f]	708	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[3c573e9]	709
[b19b362]	710	#define CFMTNP "% *c"
[4f37255]	711	char fmtstr[sizeof(CFMTNP)]; // sizeof includes '\0'
[3c573e9]	712	memcpy( &fmtstr, CFMTNP, sizeof(CFMTNP) );
[4f37255]	713	int star = 1; // position before first '*'
[3c573e9]	714
	715	// Insert flags into spaces before '*', from right to left.
	716	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
	717	fmtstr[star] = '%';
	718
	719	// printf( "%d %s\n", f.wd, &fmtstr[star] );
	720	fmt( os, &fmtstr[star], f.wd, f.val );
[b19b362]	721	return nosep( os ); // no separator after char
[3c573e9]	722	} // ?\|?
[b12e4ad]	723	OSTYPE_VOID_IMPL( os, _Ostream_Manip(char) )
[3c573e9]	724	} // distribution
	725
[8d321f9]	726	// ********************************* C string *********************************
[3c573e9]	727
[85d8153]	728	forall( ostype & \| basic_ostream( ostype ) ) {
[ae0c1c3]	729	ostype & ?\|?( ostype & os, _Ostream_Manip(const char *) f ) with ( basic_ostream_table ) {
[3c573e9]	730	if ( ! f.val ) return os; // null pointer ?
	731
	732	if ( f.base != 's' ) { // bespoke binary/octal/hex format
	733	_Ostream_Manip(unsigned char) fmtuc @= { 0, f.wd, f.pc, f.base, {'\0'} };
	734	fmtuc.flags.pc = f.flags.pc;
	735	fmtuc.flags.nobsdp = f.flags.nobsdp;
[ebf8ca5]	736	for ( i; 0 ~ @ : @; f.val[i] != '\0' ) {
[3c573e9]	737	fmtuc.val = f.val[i];
	738	(ostype &)(os \| fmtuc);
	739	} // for
	740	return os;
	741	} // if
[b19b362]	742	if ( f.flags.quote ) { // print as string
	743	int len = strlen( f.val );
	744	char qv[len + 3]; // space for quotes and '\0'
	745	qv[0] = '"'; // copy string surrounded with quotes
	746	strcpy( &qv[1], f.val );
	747	qv[len + 1] = '"';
	748	qv[len + 2] = '\0';
	749	f.flags.quote = false; // already quoted
	750	_Ostream_Manip(const char *) fmtuc @= { qv, f.wd, f.pc, 's', {f.all} };
	751	return (ostype &)(os \| fmtuc);
	752	} // if
[3c573e9]	753
[f5d9c37]	754	if ( f.val[0] != '\0' && // null string => no leading separator
	755	sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[3c573e9]	756
[b19b362]	757	#define SFMTNP "% *s"
	758	#define SFMTP "% .s"
[3c573e9]	759	char fmtstr[sizeof(SFMTP)]; // sizeof includes '\0'
	760	if ( ! f.flags.pc ) memcpy( &fmtstr, SFMTNP, sizeof(SFMTNP) );
	761	else memcpy( &fmtstr, SFMTP, sizeof(SFMTP) );
	762	int star = 1; // position before first '*'
	763
	764	// Insert flags into spaces before '*', from right to left.
	765	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
	766	fmtstr[star] = '%';
	767
	768	if ( ! f.flags.pc ) { // no precision
	769	// printf( "%d %s\n", f.wd, &fmtstr[star] );
	770	fmt( os, &fmtstr[star], f.wd, f.val );
	771	} else { // precision
	772	// printf( "%d %d %s\n", f.wd, f.pc, &fmtstr[star] );
	773	fmt( os, &fmtstr[star], f.wd, f.pc, f.val );
	774	} // if
[f5d9c37]	775	if ( f.val[0] == '\0' ) { nosep( os ); } // null string => no trailing separator
[3c573e9]	776	return os;
	777	} // ?\|?
[b12e4ad]	778	OSTYPE_VOID_IMPL( os, _Ostream_Manip(const char *) )
[3c573e9]	779	} // distribution
	780
	781
[8d321f9]	782	// ********************************* istream *********************************
[3c573e9]	783
[e56cfdb0]	784
[c015e2d]	785	#define FALSE "false"
	786	#define TRUE "true"
	787
[ef3ac46]	788	forall( istype & \| basic_istream( istype ) ) {
[ae0c1c3]	789	istype & ?\|?( istype & is, bool & b ) with ( basic_istream_table ) {
[c015e2d]	790	int len = -1; // len not set if no match
[04138cc]	791	fmt( is, " " ); // remove leading whitespace
	792	fmt( is, FALSE "%n", &len ); // try false, returns 0
[d796be70]	793	if ( len != sizeof( FALSE ) - 1 ) { // -1 removes null terminate
[04138cc]	794	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
	795	fmt( is, " " ); // remove leading whitespace
	796	fmt( is, TRUE "%n", &len ); // try true, returns 0
[c015e2d]	797	if ( len != sizeof( TRUE ) - 1 ) throwResume ExceptionInst( missing_data );
[2f4c910]	798	b = true;
	799	} else {
	800	b = false;
[3ce0d440]	801	} // if
	802	return is;
	803	} // ?\|?
	804
[ae0c1c3]	805	istype & ?\|?( istype & is, char & c ) with ( basic_istream_table ) {
[0efb269]	806	char temp;
	807	for () {
[fd5d251]	808	int args = fmt( is, "%c", &temp ); // can be called with EOF on
[b19b362]	809	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
[3ac5fd8]	810	assert( args == 1 ); // if not EOF => a single character must be read
[0efb269]	811	// do not overwrite parameter with newline unless appropriate
[b19b362]	812	if ( temp != '\n' \|\| getANL$( is ) ) { c = temp; break; }
[0efb269]	813	} // for
[3ce0d440]	814	return is;
	815	} // ?\|?
	816
[ae0c1c3]	817	istype & ?\|?( istype & is, signed char & sc ) with ( basic_istream_table ) {
[3ac5fd8]	818	int args = fmt( is, "%hhi", &sc ); // can be multiple characters (100)
	819	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	820	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	821	return is;
	822	} // ?\|?
	823
[ae0c1c3]	824	istype & ?\|?( istype & is, unsigned char & usc ) with ( basic_istream_table ) {
[3ac5fd8]	825	int args = fmt( is, "%hhi", &usc ); // can be multiple characters (-100)
[714e206]	826	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	827	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	828	return is;
	829	} // ?\|?
	830
[ae0c1c3]	831	istype & ?\|?( istype & is, short int & si ) with ( basic_istream_table ) {
[fd5d251]	832	int args = fmt( is, "%hi", &si ); // can be called with EOF on
[714e206]	833	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	834	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	835	return is;
	836	} // ?\|?
	837
[ae0c1c3]	838	istype & ?\|?( istype & is, unsigned short int & usi ) with ( basic_istream_table ) {
[fd5d251]	839	int args = fmt( is, "%hi", &usi ); // can be called with EOF on
[714e206]	840	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	841	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	842	return is;
	843	} // ?\|?
	844
[ae0c1c3]	845	istype & ?\|?( istype & is, int & i ) with ( basic_istream_table ) {
[fd5d251]	846	int args = fmt( is, "%i", &i ); // can be called with EOF on
[714e206]	847	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	848	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	849	return is;
	850	} // ?\|?
	851
[ae0c1c3]	852	istype & ?\|?( istype & is, unsigned int & ui ) with ( basic_istream_table ) {
[fd5d251]	853	int args = fmt( is, "%i", &ui ); // can be called with EOF on
[714e206]	854	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	855	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	856	return is;
	857	} // ?\|?
	858
[ae0c1c3]	859	istype & ?\|?( istype & is, long int & li ) with ( basic_istream_table ) {
[fd5d251]	860	int args = fmt( is, "%li", &li ); // can be called with EOF on
[714e206]	861	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	862	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	863	return is;
	864	} // ?\|?
	865
[ae0c1c3]	866	istype & ?\|?( istype & is, unsigned long int & ulli ) with ( basic_istream_table ) {
[fd5d251]	867	int args = fmt( is, "%li", &ulli ); // can be called with EOF on
[714e206]	868	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	869	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	870	return is;
	871	} // ?\|?
	872
[ae0c1c3]	873	istype & ?\|?( istype & is, long long int & lli ) with ( basic_istream_table ) {
[fd5d251]	874	int args = fmt( is, "%lli", &lli ); // can be called with EOF on
[714e206]	875	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	876	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	877	return is;
	878	} // ?\|?
	879
[ae0c1c3]	880	istype & ?\|?( istype & is, unsigned long long int & ulli ) with ( basic_istream_table ) {
[fd5d251]	881	int args = fmt( is, "%lli", &ulli ); // can be called with EOF on
[714e206]	882	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	883	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	884	return is;
	885	} // ?\|?
	886
[ef3ac46]	887	#if defined( __SIZEOF_INT128__ )
[e474cf09]	888	istype & ?\|?( istype & is, int128 & llli ) {
	889	return (istype &)(is \| (unsigned int128 &)llli);
	890	} // ?\|?
[fe68bdf]	891
[ae0c1c3]	892	istype & ?\|?( istype & is, unsigned int128 & ullli ) with ( basic_istream_table ) {
[fe68bdf]	893	char s[40];
	894	bool sign = false;
	895
	896	if ( fmt( is, " %[-]", s ) == 1 ) sign = true; // skip whitespace, negative sign ?
	897	// If the input is too large, the value returned is undefined. If there is no input, no value is returned
	898	if ( fmt( is, "%39[0-9]%*[0-9]", s ) == 1 ) { // take first 39 characters, ignore remaining
[e474cf09]	899	ullli = 0;
[ebf8ca5]	900	for ( i; 0 ~ @ : @; s[i] != '\0' ) {
[e474cf09]	901	ullli = ullli * 10 + s[i] - '0';
[fe68bdf]	902	} // for
[e474cf09]	903	if ( sign ) ullli = -ullli;
[3ac5fd8]	904	} // if
[fe68bdf]	905	return is;
	906	} // ?\|?
[ef3ac46]	907	#endif // __SIZEOF_INT128__
[3ce0d440]	908
[ae0c1c3]	909	istype & ?\|?( istype & is, float & f ) with ( basic_istream_table ) {
[fd5d251]	910	int args = fmt( is, "%f", &f ); // can be called with EOF on
[714e206]	911	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	912	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	913	return is;
	914	} // ?\|?
	915
[ae0c1c3]	916	istype & ?\|?( istype & is, double & d ) with ( basic_istream_table ) {
[fd5d251]	917	int args = fmt( is, "%lf", &d ); // can be called with EOF on
[714e206]	918	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	919	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	920	return is;
	921	} // ?\|?
	922
[ae0c1c3]	923	istype & ?\|?( istype & is, long double & ld ) with ( basic_istream_table ) {
[fd5d251]	924	int args = fmt( is, "%Lf", &ld ); // can be called with EOF on
[714e206]	925	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	926	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	927	return is;
	928	} // ?\|?
	929
[ae0c1c3]	930	istype & ?\|?( istype & is, float _Complex & fc ) with ( basic_istream_table ) {
[3ce0d440]	931	float re, im;
[fd5d251]	932	int args = fmt( is, "%f%fi", &re, &im ); // can be called with EOF on
[714e206]	933	if ( ! eof( is ) && args != 2 ) throwResume ExceptionInst( missing_data );
[fd5d251]	934	if ( eof( is ) && args != 2 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	935	fc = re + im * _Complex_I;
	936	return is;
	937	} // ?\|?
	938
[ae0c1c3]	939	istype & ?\|?( istype & is, double _Complex & dc ) with ( basic_istream_table ) {
[3ce0d440]	940	double re, im;
[fd5d251]	941	int args = fmt( is, "%lf%lfi", &re, &im ); // can be called with EOF on
[714e206]	942	if ( ! eof( is ) && args != 2 ) throwResume ExceptionInst( missing_data );
[fd5d251]	943	if ( eof( is ) && args != 2 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	944	dc = re + im * _Complex_I;
	945	return is;
	946	} // ?\|?
	947
[ae0c1c3]	948	istype & ?\|?( istype & is, long double _Complex & ldc ) with ( basic_istream_table ) {
[3ce0d440]	949	long double re, im;
[fd5d251]	950	int args = fmt( is, "%Lf%Lfi", &re, &im ); // can be called with EOF on
[714e206]	951	if ( ! eof( is ) && args != 2 ) throwResume ExceptionInst( missing_data );
[fd5d251]	952	if ( eof( is ) && args != 2 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	953	ldc = re + im * _Complex_I;
	954	return is;
	955	} // ?\|?
	956
[0528d79]	957	istype & ?\|?( istype & is, const char fmt[] ) with ( basic_istream_table ) { // match text
[8c13ca8]	958	size_t len = strlen( fmt );
[714e206]	959	char fmtstr[len + 16];
	960	strcpy( fmtstr, fmt ); // copy format and add %n
	961	strcpy( &fmtstr[len], "%n" );
[c015e2d]	962	len = -1;
[04138cc]	963	// scanf cursor does not move if no match, so eof cannot be detected.
[fd5d251]	964	fmt( is, fmtstr, &len ); // can be called with EOF on
	965	if ( ! eof( is ) && len == -1 ) throwResume ExceptionInst( missing_data );
	966	if ( eof( is ) && len == -1 ) throwResume ExceptionInst( end_of_file );
[0f107e4]	967	return is;
	968	} // ?\|?
[04396aa]	969
[3ce0d440]	970	// manipulators
	971	istype & ?\|?( istype & is, istype & (* manip)( istype & ) ) {
	972	return manip( is );
	973	} // ?\|?
[ff7f6d07]	974
[e474cf09]	975	void ?\|?( istype & is, istype & (* manip)( istype & ) ) {
[f842032]	976	manip( is );
[e474cf09]	977	} // ?\|?
[3ce0d440]	978
[ae0c1c3]	979	istype & nl( istype & is ) with ( basic_istream_table ) {
[3c5dee4]	980	fmt( is, "%*[^\n]" ); // ignore characters to newline
[63e129c]	981	if ( ! eof( is ) ) fmt( is, "%*c" ); // read newline
[3ce0d440]	982	return is;
[200fcb3]	983	} // nl
[0efb269]	984
[ae0c1c3]	985	istype & nlOn( istype & is ) with ( basic_istream_table ) {
[0efb269]	986	nlOn( is ); // call void returning
	987	return is;
	988	} // nlOn
	989
[ae0c1c3]	990	istype & nlOff( istype & is ) with ( basic_istream_table ) {
[0efb269]	991	nlOff( is ); // call void returning
	992	return is;
	993	} // nlOff
[ef3ac46]	994	} // distribution
[44574f2]	995
[8d321f9]	996	// ********************************* manipulators *********************************
[3c573e9]	997
[ef3ac46]	998	forall( istype & \| basic_istream( istype ) ) {
[ae0c1c3]	999	istype & ?\|?( istype & is, _Istream_Cskip f ) with ( basic_istream_table ) {
[3ac5fd8]	1000	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
[bf1cbde]	1001	if ( f.scanset ) {
	1002	int nscanset = strlen(f.scanset);
	1003	char fmtstr[ sizeof("%*[]") + nscanset ];
	1004	int pos = 0;
[e0dc038]	1005	strcpy( &fmtstr[pos], "%*[" ); pos += 3;
[bf1cbde]	1006	strcpy( &fmtstr[pos], f.scanset ); pos += nscanset;
[e0dc038]	1007	strcpy( &fmtstr[pos], "]" );
[714e206]	1008	fmt( is, fmtstr, "" ); // skip scanset, zero or more
[e0dc038]	1009	} else {
	1010	char ch;
	1011	for ( f.wd ) { // skip N characters
[fd5d251]	1012	int args = fmt( is, "%c", &ch ); // can be called with EOF on
[3ac5fd8]	1013	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[e0dc038]	1014	} // for
	1015	} // if
[0f107e4]	1016	return is;
	1017	}
[e7a8f65]	1018
[ae0c1c3]	1019	istype & ?\|?( istype & is, _Istream_Cquote f ) with( basic_istream_table, f.cstr ) {
[3ac5fd8]	1020	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
[8c13ca8]	1021	int args;
[5764204]	1022	fini: {
[714e206]	1023	char rfmt[5] = { ' ', delimiters[0], '%', 'n', '\0' };
	1024	int len = -1; // may not be set in fmt
	1025	args = fmt( is, rfmt, &len ); // remove leading whitespace and quote
	1026	if ( eof( is ) \|\| len == -1 ) break fini;
[5764204]	1027
	1028	// Change the remainder of the read into a getline by reseting the closing delimiter.
	1029	if ( delimiters[1] != '\0' ) {
	1030	delimiters[0] = delimiters[1];
	1031	delimiters[1] = '\0';
[8c13ca8]	1032	} // if
[5764204]	1033	flags.delimiter = true;
	1034	return is \| (_Istream_Cstr )&f;
	1035	} // fini
[baa1d5d]	1036	// read failed => no pattern match => set string to null
	1037	if ( ! flags.ignore && s != 0p && args == 0 ) s[0] = '\0';
[8c13ca8]	1038	if ( args == 1 && eof( is ) ) { // data but scan ended at EOF
[768d091]	1039	clearerr( is ); // => reset EOF => detect again on next read
[8c13ca8]	1040	} // if
	1041	return is;
	1042	}
	1043
[ae0c1c3]	1044	istype & ?\|?( istype & is, _Istream_Cstr f ) with( basic_istream_table, f.cstr ) {
	1045	assert(eof);
[3ac5fd8]	1046	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
[e0dc038]	1047	const char * scanset;
	1048	size_t nscanset = 0;
[4aae2bd]	1049	if ( flags.delimiter ) scanset = delimiters; // getline ?
[5764204]	1050	else scanset = f.cstr.scanset;
[e0dc038]	1051	if ( scanset ) nscanset = strlen( scanset );
[5ad2c6c7]	1052
[e0dc038]	1053	char fmtstr[nscanset + 32]; // storage for scanset and format codes
[e474cf09]	1054	fmtstr[0] = '%';
[e0dc038]	1055	int pos = 1;
	1056	int args;
	1057	bool check = true;
	1058
[5764204]	1059	if ( flags.ignore ) { check = false; fmtstr[1] = '*'; pos += 1; }
	1060	int rwd = wd;
	1061	if ( wd != -1 ) { // => just ignore versus ignore with width
[2fa0237]	1062	// wd is buffer bytes available (for input chars + null terminator)
	1063	// rwd is count of input chars
[e0dc038]	1064	// no maximum width necessary because text ignored => width is read width
[5764204]	1065	if ( flags.rwd ) check = false;
	1066	else rwd = wd - 1;
	1067	assert( rwd > 0 );
[e0dc038]	1068	pos += sprintf( &fmtstr[pos], "%d", rwd );
[e474cf09]	1069	} // if
[2f34fde]	1070
[e0dc038]	1071	if ( ! scanset ) { // %s, %s, %ws, %ws
[5764204]	1072	// fprintf( stderr, "cstr %s\n", s );
[e0dc038]	1073	strcpy( &fmtstr[pos], "s%n" );
	1074	int len = 0; // may not be set in fmt
[5764204]	1075	if ( flags.ignore ) args = fmt( is, fmtstr, &len ); // no string argument for '*'
	1076	else args = fmt( is, fmtstr, s, &len );
[7b93027e]	1077	// fprintf( stderr, "cstr %s %d %d %d\n", fmtstr, args, len, f.cstr.wd );
[737bf73]	1078
	1079	// No data read and eof is on => true eof so raise exception.
	1080	if ( len == 0 && eof( is ) ) throwResume ExceptionInst( end_of_file );
	1081
[e0dc038]	1082	if ( check && len >= rwd && ! eof( is ) ) { // might not fit
[0860d9c]	1083	char peek;
[e0dc038]	1084	fmt( is, "%c", &peek ); // check for whitespace terminator
[8c13ca8]	1085	// fprintf( stderr, "peek %d '%c'\n", args, peek );
[714e206]	1086	if ( ! eof( is ) ) { // can only fail at eof
[a1a1f37d]	1087	ungetc( peek, is );
[8c13ca8]	1088	if ( ! isspace( peek ) ) throwResume ExceptionInst( cstring_length );
[e0dc038]	1089	} // if
[0860d9c]	1090	} // if
[3e4bf0d]	1091	// FIX ME: CFA strings need to be modified to NOT change the argument for this case, then this can be removed.
[7b93027e]	1092	//fprintf( stderr, "cstr %d %d %d %d '%s'\n", flags.ignore, args, len, eof( is ), s );
	1093	//if ( ! flags.ignore && args == 0 ) s[0]= '\0'; // read failed => no pattern match => set string to null
[e0dc038]	1094	} else {
[5764204]	1095	if ( flags.delimiter ) { // getline
[e0dc038]	1096	int len = 0; // may not be set in fmt
[30548de]	1097	if ( delimiters[2] != '\0' ) { // (quote) read single character ?
[baa1d5d]	1098	sprintf( &fmtstr[pos], "c%%n" );
	1099	} else {
	1100	sprintf( &fmtstr[pos], "[^%c]%%n", delimiters[0] );
	1101	} // if
[5764204]	1102	if ( flags.ignore ) args = fmt( is, fmtstr, &len ); // no string argument for '*'
	1103	else args = fmt( is, fmtstr, s, &len );
[714e206]	1104
[737bf73]	1105	// No data read and eof is on => true eof so raise exception.
	1106	if ( len == 0 && eof( is ) ) throwResume ExceptionInst( end_of_file );
	1107
[e0dc038]	1108	if ( check && len == rwd && ! eof( is ) ) { // might not fit
[5764204]	1109	char peek;
	1110	fmt( is, "%c", &peek ); // check for delimiter
[e0dc038]	1111	if ( ! eof( is ) ) {
[5764204]	1112	if ( peek != delimiters[0] ) {
[a1a1f37d]	1113	ungetc( peek, is );
[8c13ca8]	1114	throwResume ExceptionInst( cstring_length );
[e0dc038]	1115	} // if
	1116	} // if
[4aae2bd]	1117	} else fmt( is, "%*c" ); // remove delimiter
[e0dc038]	1118	} else {
	1119	// incl %[xxx], %[xxx], %w[xxx], %w[xxx]
	1120	// excl %[^xxx], %[^xxx], %w[^xxx], %w[^xxx]
[5764204]	1121	sprintf( &fmtstr[pos], "[%s%s]%%n", flags.inex ? "^" : "", scanset );
	1122	// fprintf( stderr, "incl/excl %s %d\n", fmtstr, wd );
[e0dc038]	1123	int len = 0; // may not be set in fmt
[5764204]	1124	if ( flags.ignore ) args = fmt( is, fmtstr, &len ); // no string argument for '*'
	1125	else args = fmt( is, fmtstr, s, &len );
	1126	// fprintf( stderr, "incl/excl %s \"%s\" %d %d %d %d %d %c\n", fmtstr, s, args, wd, len, eof( is ), check, s[wd] );
[737bf73]	1127
	1128	// No data read and eof is on => true eof so raise exception.
	1129	if ( len == 0 && eof( is ) ) throwResume ExceptionInst( end_of_file );
	1130
[e0dc038]	1131	if ( check && len == rwd && ! eof( is ) ) { // might not fit
[8c13ca8]	1132	// fprintf( stderr, "overflow\n" );
[e0dc038]	1133	char peek;
	1134	fmt( is, "%c", &peek ); // check for whitespace terminator
[8c13ca8]	1135	// fprintf( stderr, "peek %d '%c'\n", args, peek );
[e0dc038]	1136	if ( ! eof( is ) ) {
[a1a1f37d]	1137	ungetc( peek, is );
[5764204]	1138	if ( flags.inex ^ strchr( scanset, peek ) != 0p ) throwResume ExceptionInst( cstring_length );
[e0dc038]	1139	} // if
	1140	} // if
[0f107e4]	1141	} // if
[5764204]	1142	if ( ! flags.ignore && args == 0 ) s[0]= '\0'; // read failed => no pattern match => set string to null
[e0dc038]	1143	} // if
	1144	if ( args == 1 && eof( is ) ) { // data but scan ended at EOF
[768d091]	1145	clearerr( is ); // => reset EOF => detect again on next read
[e0dc038]	1146	} // if
[61c7239]	1147	return is;
[e474cf09]	1148	} // ?\|?
	1149	} // distribution
[86a8be5]	1150
[94d2544]	1151	#define INPUT_FMT_IMPL( T, CODE ) \
[ef3ac46]	1152	forall( istype & \| basic_istream( istype ) ) { \
[ae0c1c3]	1153	istype & ?\|?( istype & is, _Istream_Manip(T) f ) with ( basic_istream_table ) { \
[e474cf09]	1154	enum { size = 16 }; \
	1155	char fmtstr[size]; \
	1156	if ( f.wd == -1 ) { \
	1157	snprintf( fmtstr, size, "%%%s%s", f.ignore ? "*" : "", CODE ); \
	1158	} else { \
	1159	snprintf( fmtstr, size, "%%%s%d%s", f.ignore ? "*" : "", f.wd, CODE ); \
	1160	} /* if */ \
	1161	/* printf( "%d %s %p\n", f.wd, fmtstr, &f.val ); */ \
	1162	fmt( is, fmtstr, &f.val ); \
	1163	return is; \
	1164	} /* ?\|? */ \
	1165	} // distribution
[3c573e9]	1166
[baa1d5d]	1167	INPUT_FMT_IMPL( char, "c" )
[94d2544]	1168	INPUT_FMT_IMPL( signed char, "hhi" )
	1169	INPUT_FMT_IMPL( unsigned char, "hhi" )
	1170	INPUT_FMT_IMPL( signed short int, "hi" )
	1171	INPUT_FMT_IMPL( unsigned short int, "hi" )
	1172	INPUT_FMT_IMPL( signed int, "i" )
	1173	INPUT_FMT_IMPL( unsigned int, "i" )
	1174	INPUT_FMT_IMPL( signed long int, "li" )
	1175	INPUT_FMT_IMPL( unsigned long int, "li" )
	1176	INPUT_FMT_IMPL( signed long long int, "lli" )
	1177	INPUT_FMT_IMPL( unsigned long long int, "lli" )
	1178
	1179	INPUT_FMT_IMPL( float, "f" )
	1180	INPUT_FMT_IMPL( double, "lf" )
	1181	INPUT_FMT_IMPL( long double, "Lf" )
[3c573e9]	1182
[ef3ac46]	1183	forall( istype & \| basic_istream( istype ) ) {
[e474cf09]	1184	istype & ?\|?( istype & is, _Istream_Manip(float _Complex) fc ) {
	1185	float re, im;
	1186	_Istream_Manip(float) fmtuc @= { re, fc.wd, fc.ignore };
	1187	is \| fmtuc;
	1188	&fmtuc.val = &im;
	1189	is \| fmtuc;
	1190	if ( ! fc.ignore ) fc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
	1191	return is;
	1192	} // ?\|?
	1193
	1194	istype & ?\|?( istype & is, _Istream_Manip(double _Complex) dc ) {
	1195	double re, im;
	1196	_Istream_Manip(double) fmtuc @= { re, dc.wd, dc.ignore };
	1197	is \| fmtuc;
	1198	&fmtuc.val = &im;
	1199	is \| fmtuc;
	1200	if ( ! dc.ignore ) dc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
	1201	return is;
	1202	} // ?\|?
	1203
	1204	istype & ?\|?( istype & is, _Istream_Manip(long double _Complex) ldc ) {
	1205	long double re, im;
	1206	_Istream_Manip(long double) fmtuc @= { re, ldc.wd, ldc.ignore };
	1207	is \| fmtuc;
	1208	&fmtuc.val = &im;
	1209	is \| fmtuc;
	1210	if ( ! ldc.ignore ) ldc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
	1211	return is;
	1212	} // ?\|?
	1213	} // distribution
[3c573e9]	1214
[0528d79]	1215	// ********************************* enumerations *********************************
[2f34fde]	1216
[eae8b37]	1217	forall( istype & \| istream( istype ), E \| CfaEnum( E ) \| Serial( E ) )
[ae0c1c3]	1218	istype & ?\|?( istype & is, E & e ) with ( basic_istream_table ) {
[eae8b37]	1219	// Match longest input enumerator string to enumerator labels, where enumerator names are unique.
[0528d79]	1220	size_t N = countof( E ), lnths[N], maxlen = 0; // N must be > 0, maxlen must be > 0
	1221
	1222	size_t ec = 0;
	1223	for ( s; E ) { // gather label lengths
	1224	lnths[ec] = strlen( label( s ) );
	1225	if ( lnths[ec] > maxlen ) maxlen = lnths[ec]; // gather longest length
	1226	// printf( "%s %zd\n", label( s ), lnths[e] );
	1227	ec += 1;
[eae8b37]	1228	} // for
[0528d79]	1229	// printf( "maxlen %d\n", maxlen );
[eae8b37]	1230
[04138cc]	1231	fmt( is, " " ); // remove leading whitespace
[0528d79]	1232	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
	1233	// printf( "after whitespace\n" );
	1234
	1235	char ch;
	1236	ssize_t exact = -1; // -1 => no exact match seen so far
	1237
	1238	for ( c; maxlen ) { // scan columns of the label matrix (some columns missing)
	1239	fmt( is, "%c", &ch ); // read character => get a character or EOF
	1240	// printf( "after fmt %d %d '%c'\n", c, args, ch );
	1241	if ( eof( is ) \|\| isspace( ch ) != 0 ) { // enumerator delimiter ? => end of enumerator
	1242	// printf( "match eof %zd %s\n", exact, label( fromInt( exact ) ) );
	1243	if ( exact != -1 ) { // exact match available ?
	1244	e = fromInt( exact );
	1245	return is;
	1246	} // if
	1247	// printf( "no match\n" );
	1248	// consume input character(s) as garbage
[768d091]	1249	clearerr( is ); // => read something => reset EOF => detect again on next read
[0528d79]	1250	throwResume ExceptionInst( missing_data ); // no matching enumerator
[eae8b37]	1251	} // if
	1252
[0528d79]	1253	bool match = false;
	1254	for ( r; N ) { // scan all enumeration labels for matching character
	1255	// if ( lnths[r] > c ) printf( "%d %d %d %c %s %c\n", c, r, lnths[r], ch, label( fromInt( r ) ), label( fromInt( r ) )[c] );
	1256	if ( lnths[r] > c && label( fromInt( r ) )[c] == ch ) { // label long enough and matching character ?
	1257	// printf( "match char\n" );
	1258	match = true;
	1259	if ( lnths[r] - 1 == c ) exact = r; // exact match ?
	1260	else if ( exact != -1 && lnths[exact] <= c ) exact = -1; // previous exact match too short ?
	1261	} else {
	1262	lnths[r] = 0; // mark enumerator ineligible
[eae8b37]	1263	} // if
[0528d79]	1264	} // for
	1265	// printf( "match %d\n", match );
	1266	if ( ! match ) { // no matching character in column
	1267	if ( exact != -1 ) { // exact match available ?
	1268	// printf( "match %zd unget %c\n", exact, ch );
	1269	ungetc( ch, is ); // push back last unmatching character
	1270	e = fromInt( exact );
	1271	return is;
	1272	} // if
	1273	// consume input character(s) as garbage
	1274	throwResume ExceptionInst( missing_data ); // no match found
[eae8b37]	1275	} // if
[0528d79]	1276	//printf( "loop match %d\n", match );
	1277	} // for
	1278	// printf( "loop end\n" );
	1279	e = fromInt( exact );
[eae8b37]	1280	return is;
	1281	}
[0528d79]	1282
[eae8b37]	1283	forall( ostype & \| ostream( ostype ), E \| CfaEnum( E ) ) {
	1284	ostype & ?\|?( ostype & os, E e ) {
	1285	return os \| label( e );
	1286	}
	1287	OSTYPE_VOID_IMPL( os, E )
	1288	}
	1289
[86bd7c1f]	1290	// Local Variables: //
	1291	// tab-width: 4 //
[084520f]	1292	// compile-command: "cfa iostream.cfa" //
[86bd7c1f]	1293	// End: //

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