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iostream.cfa@ bc547d3

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Last change on this file since bc547d3 was 244335b, checked in by Peter A. Buhr <pabuhr@…>, 11 days ago
update printing of decimal point in floating-point numbers
Property mode set to `100644`
File size: 50.6 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
[244335b]	12	// Last Modified On : Mon May 4 12:00:48 2026
	13	// Update Count : 2310
[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
[244335b]	601	// Float-point numbers without a fraction are always printed with a decimal point to reflect the constant type.
	602	// Programmers must explicitly disable printing the decimal point for values with no fraction using manipulator nodp.
	603	// printf supports printing the decimal point using flag #. However specifier g is broken with #.
	604	//
	605	// printf( "%g %#g %g %#g\n", 4., 4., 4.5, 4.5 );
	606	// 4 4.00000 4.5 4.50000
	607	//
	608	// when # is specified, g incorrectly prints 6 significant digits. As a result, # cannot be used to force printing of
	609	// the decimal point. Instead, any missing decimal point is manually added.
	610
[94d2544]	611	#define PRINT_WITH_DP2( os, format, ... ) \
[3c573e9]	612	{ \
[fd4c009]	613	if ( ! f.flags.eng ) { \
	614	len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
[bcbc7e4]	615	if ( isfinite( f.val ) && ! f.flags.nobsdp ) { /* if number, print decimal point when no fraction or exponent */ \
[09a767e]	616	for ( i = 0; i < len && buf[i] != '.' && buf[i] != 'e' && buf[i] != 'E' && \
[244335b]	617	buf[i] != 'p' && buf[i] != 'P'; i += 1 ); /* decimal point or scientific ? */ \
[fd4c009]	618	if ( i == len ) { \
	619	if ( ! f.flags.left ) { \
	620	buf[i] = '.'; buf[i + 1] = '\0'; \
	621	if ( buf[0] == ' ' ) bufbeg = 1; /* decimal point within width */ \
	622	} else { \
	623	for ( i = 0; i < len && buf[i] != ' '; i += 1 ); /* trailing blank ? */ \
	624	buf[i] = '.'; \
	625	if ( i == len ) buf[i + 1] = '\0'; \
	626	} /* if */ \
[3c573e9]	627	} /* if */ \
	628	} /* if */ \
[fd4c009]	629	} else { \
	630	int exp10, len2; \
[244335b]	631	eng( f.val, f.pc, exp10 ); /* changes arguments */ \
[b1e614f4]	632	/* printf( "%g %d %d %d %s\n", f.val, f.wd, f.pc, exp10, format ); */ \
[fd4c009]	633	if ( ! f.flags.left && f.wd > 1 ) { \
[b1e614f4]	634	/* Exponent size: 'e', optional minus sign, number of digits: log10(0) => undefined */ \
	635	f.wd -= 1 + (exp10 < 0 ? 1 : 0) + lrint( floor( exp10 == 0 ? 0 : log10( abs( exp10 ) ) ) ) + 1; \
[fd4c009]	636	if ( f.wd < 1 ) f.wd = 1; \
	637	} /* if */ \
	638	len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
	639	if ( f.flags.left ) { \
	640	for ( len -= 1; len > 0 && buf[len] == ' '; len -= 1 ); \
	641	len += 1; \
	642	} /* if */ \
	643	if ( ! f.flags.nobsdp \|\| (exp10 < SUFFIXES_START) \|\| (exp10 > SUFFIXES_END) ) { \
[fb907d3]	644	len2 = snprintf( &buf[len], size - len, "e%d", (int)exp10 /* ambiguity with function exp10 */ ); \
[fd4c009]	645	} else { \
	646	len2 = snprintf( &buf[len], size - len, "%s", suffixes[(exp10 - SUFFIXES_START) / 3] ); \
	647	} /* if */ \
	648	if ( f.flags.left && len + len2 < f.wd ) buf[len + len2] = ' '; \
[3c573e9]	649	} /* if */ \
	650	fmt( os, "%s", &buf[bufbeg] ); \
	651	}
	652
[94d2544]	653	#define FLOATING_POINT_FMT_IMPL( T, DFMTNP, DFMTP ) \
[85d8153]	654	forall( ostype & \| basic_ostream( ostype ) ) { \
[b19b362]	655	static void eng( T & value, int & pc, int & exp10 ) { \
[fd4c009]	656	exp10 = lrint( floor( log10( abs( value ) ) ) ); /* round to desired precision */ \
	657	if ( exp10 < 0 ) exp10 -= 2; \
	658	exp10 = floor( exp10, 3 ); \
	659	value *= pow( 10.0, -exp10 ); \
[0d49efb]	660	if ( pc < 0 ) pc = 3; \
[fd4c009]	661	} /* eng */ \
	662	\
[ae0c1c3]	663	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) with ( basic_ostream_table ) { \
[fd4c009]	664	enum { size = 48 }; \
	665	char buf[size]; \
	666	int bufbeg = 0, i, len; \
	667	\
[6c5d92f]	668	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) ); \
[244335b]	669	char fmtstr[sizeof(DFMTP) + 8]; /* sizeof includes '\0' */ \
[3c573e9]	670	if ( ! f.flags.pc ) memcpy( &fmtstr, DFMTNP, sizeof(DFMTNP) ); \
	671	else memcpy( &fmtstr, DFMTP, sizeof(DFMTP) ); \
[244335b]	672	int star = 5; /* position before first '' / \
[3c573e9]	673	\
	674	/* Insert flags into spaces before '', from right to left. / \
	675	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
	676	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
	677	if ( f.flags.pad0 ) { fmtstr[star] = '0'; star -= 1; } \
[244335b]	678	if ( f.base == 'f' && f.base == 'F' && f.base == 'g' && f.base == 'G' ) { fmtstr[star] = '\''; star -= 1; } /* locale only for f andg */ \
	679	else if ( ! f.flags.nobsdp && (f.base == 'a' \|\| f.base == 'A') ) { fmtstr[star] = '#'; star -= 1; } /* hex special case to get decimal point */ \
[3c573e9]	680	fmtstr[star] = '%'; \
	681	\
[244335b]	682	if ( ! f.flags.pc ) { /* no precision */ \
	683	fmtstr[sizeof(DFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
	684	/* printf( "[%g %c %d %s]\n", f.val, f.base, f.wd, &fmtstr[star] ); */ \
[94d2544]	685	PRINT_WITH_DP2( os, &fmtstr[star], f.wd, f.val ) \
[244335b]	686	} else { /* precision */ \
	687	fmtstr[sizeof(DFMTP)-2] = f.base; /* sizeof includes '\0' */ \
	688	/* printf( "[%g %c %d %d %s]\n", f.val, f.base, f.wd, f.pc, &fmtstr[star] ); */ \
[94d2544]	689	PRINT_WITH_DP2( os, &fmtstr[star], f.wd, f.pc, f.val ) \
[3c573e9]	690	} /* if */ \
	691	return os; \
	692	} /* ?\|? */ \
[e3fea42]	693	\
[b12e4ad]	694	OSTYPE_VOID_IMPL( os, _Ostream_Manip(T) ) \
[3c573e9]	695	} // distribution
	696
[94d2544]	697	FLOATING_POINT_FMT_IMPL( double, " * ", " . " )
	698	FLOATING_POINT_FMT_IMPL( long double, " L ", " .*L " )
[3c573e9]	699
[8d321f9]	700	// ********************************* character *********************************
[3c573e9]	701
[85d8153]	702	forall( ostype & \| basic_ostream( ostype ) ) {
[ae0c1c3]	703	ostype & ?\|?( ostype & os, _Ostream_Manip(char) f ) with ( basic_ostream_table ) {
[4f37255]	704	if ( f.base != 'c' ) { // bespoke binary/octal/hex format
[3c573e9]	705	_Ostream_Manip(unsigned char) fmtuc @= { f.val, f.wd, f.pc, f.base, {'\0'} };
	706	fmtuc.flags.pc = f.flags.pc;
	707	fmtuc.flags.nobsdp = f.flags.nobsdp;
[b19b362]	708	return (ostype &)(os \| fmtuc);
	709	} // if
	710	if ( f.flags.quote ) { // print as string
[bb1eabc]	711	char qv[] = { f.qleft, f.val, f.qright ? : f.qleft, '\0' };
[b19b362]	712	f.flags.quote = false; // already quoted
	713	_Ostream_Manip(const char *) fmtuc @= { qv, f.wd, f.pc, 's', {f.all} };
[3c573e9]	714	(ostype &)(os \| fmtuc);
[b19b362]	715	return nosep( os ); // no separator after char
[3c573e9]	716	} // if
	717
[6c5d92f]	718	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[3c573e9]	719
[b19b362]	720	#define CFMTNP "% *c"
[4f37255]	721	char fmtstr[sizeof(CFMTNP)]; // sizeof includes '\0'
[3c573e9]	722	memcpy( &fmtstr, CFMTNP, sizeof(CFMTNP) );
[4f37255]	723	int star = 1; // position before first '*'
[3c573e9]	724
	725	// Insert flags into spaces before '*', from right to left.
	726	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
	727	fmtstr[star] = '%';
	728
	729	// printf( "%d %s\n", f.wd, &fmtstr[star] );
	730	fmt( os, &fmtstr[star], f.wd, f.val );
[b19b362]	731	return nosep( os ); // no separator after char
[3c573e9]	732	} // ?\|?
[b12e4ad]	733	OSTYPE_VOID_IMPL( os, _Ostream_Manip(char) )
[3c573e9]	734	} // distribution
	735
[8d321f9]	736	// ********************************* C string *********************************
[3c573e9]	737
[85d8153]	738	forall( ostype & \| basic_ostream( ostype ) ) {
[ae0c1c3]	739	ostype & ?\|?( ostype & os, _Ostream_Manip(const char *) f ) with ( basic_ostream_table ) {
[3c573e9]	740	if ( ! f.val ) return os; // null pointer ?
	741
	742	if ( f.base != 's' ) { // bespoke binary/octal/hex format
	743	_Ostream_Manip(unsigned char) fmtuc @= { 0, f.wd, f.pc, f.base, {'\0'} };
	744	fmtuc.flags.pc = f.flags.pc;
	745	fmtuc.flags.nobsdp = f.flags.nobsdp;
[ebf8ca5]	746	for ( i; 0 ~ @ : @; f.val[i] != '\0' ) {
[3c573e9]	747	fmtuc.val = f.val[i];
	748	(ostype &)(os \| fmtuc);
	749	} // for
	750	return os;
	751	} // if
[b19b362]	752	if ( f.flags.quote ) { // print as string
	753	int len = strlen( f.val );
	754	char qv[len + 3]; // space for quotes and '\0'
[bb1eabc]	755	qv[0] = f.qleft; strcpy( &qv[1], f.val );
	756	qv[len + 1] = f.qright ? : f.qleft; qv[len + 2] = '\0'; // copy string surrounded with quotes
[b19b362]	757	f.flags.quote = false; // already quoted
	758	_Ostream_Manip(const char *) fmtuc @= { qv, f.wd, f.pc, 's', {f.all} };
	759	return (ostype &)(os \| fmtuc);
	760	} // if
[3c573e9]	761
[f5d9c37]	762	if ( f.val[0] != '\0' && // null string => no leading separator
	763	sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[3c573e9]	764
[b19b362]	765	#define SFMTNP "% *s"
	766	#define SFMTP "% .s"
[3c573e9]	767	char fmtstr[sizeof(SFMTP)]; // sizeof includes '\0'
	768	if ( ! f.flags.pc ) memcpy( &fmtstr, SFMTNP, sizeof(SFMTNP) );
	769	else memcpy( &fmtstr, SFMTP, sizeof(SFMTP) );
	770	int star = 1; // position before first '*'
	771
	772	// Insert flags into spaces before '*', from right to left.
	773	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
	774	fmtstr[star] = '%';
	775
	776	if ( ! f.flags.pc ) { // no precision
	777	// printf( "%d %s\n", f.wd, &fmtstr[star] );
	778	fmt( os, &fmtstr[star], f.wd, f.val );
	779	} else { // precision
	780	// printf( "%d %d %s\n", f.wd, f.pc, &fmtstr[star] );
	781	fmt( os, &fmtstr[star], f.wd, f.pc, f.val );
	782	} // if
[f5d9c37]	783	if ( f.val[0] == '\0' ) { nosep( os ); } // null string => no trailing separator
[3c573e9]	784	return os;
	785	} // ?\|?
[b12e4ad]	786	OSTYPE_VOID_IMPL( os, _Ostream_Manip(const char *) )
[3c573e9]	787	} // distribution
	788
	789
[8d321f9]	790	// ********************************* istream *********************************
[3c573e9]	791
[e56cfdb0]	792
[c015e2d]	793	#define FALSE "false"
	794	#define TRUE "true"
	795
[ef3ac46]	796	forall( istype & \| basic_istream( istype ) ) {
[ae0c1c3]	797	istype & ?\|?( istype & is, bool & b ) with ( basic_istream_table ) {
[c015e2d]	798	int len = -1; // len not set if no match
[04138cc]	799	fmt( is, " " ); // remove leading whitespace
	800	fmt( is, FALSE "%n", &len ); // try false, returns 0
[d796be70]	801	if ( len != sizeof( FALSE ) - 1 ) { // -1 removes null terminate
[04138cc]	802	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
	803	fmt( is, " " ); // remove leading whitespace
	804	fmt( is, TRUE "%n", &len ); // try true, returns 0
[c015e2d]	805	if ( len != sizeof( TRUE ) - 1 ) throwResume ExceptionInst( missing_data );
[2f4c910]	806	b = true;
	807	} else {
	808	b = false;
[3ce0d440]	809	} // if
	810	return is;
	811	} // ?\|?
	812
[ae0c1c3]	813	istype & ?\|?( istype & is, char & c ) with ( basic_istream_table ) {
[0efb269]	814	char temp;
	815	for () {
[fd5d251]	816	int args = fmt( is, "%c", &temp ); // can be called with EOF on
[b19b362]	817	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
[3ac5fd8]	818	assert( args == 1 ); // if not EOF => a single character must be read
[0efb269]	819	// do not overwrite parameter with newline unless appropriate
[b19b362]	820	if ( temp != '\n' \|\| getANL$( is ) ) { c = temp; break; }
[0efb269]	821	} // for
[3ce0d440]	822	return is;
	823	} // ?\|?
	824
[ae0c1c3]	825	istype & ?\|?( istype & is, signed char & sc ) with ( basic_istream_table ) {
[3ac5fd8]	826	int args = fmt( is, "%hhi", &sc ); // can be multiple characters (100)
	827	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	828	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	829	return is;
	830	} // ?\|?
	831
[ae0c1c3]	832	istype & ?\|?( istype & is, unsigned char & usc ) with ( basic_istream_table ) {
[3ac5fd8]	833	int args = fmt( is, "%hhi", &usc ); // can be multiple characters (-100)
[714e206]	834	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	835	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	836	return is;
	837	} // ?\|?
	838
[ae0c1c3]	839	istype & ?\|?( istype & is, short int & si ) with ( basic_istream_table ) {
[fd5d251]	840	int args = fmt( is, "%hi", &si ); // can be called with EOF on
[714e206]	841	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	842	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	843	return is;
	844	} // ?\|?
	845
[ae0c1c3]	846	istype & ?\|?( istype & is, unsigned short int & usi ) with ( basic_istream_table ) {
[fd5d251]	847	int args = fmt( is, "%hi", &usi ); // can be called with EOF on
[714e206]	848	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	849	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	850	return is;
	851	} // ?\|?
	852
[ae0c1c3]	853	istype & ?\|?( istype & is, int & i ) with ( basic_istream_table ) {
[fd5d251]	854	int args = fmt( is, "%i", &i ); // can be called with EOF on
[714e206]	855	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	856	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	857	return is;
	858	} // ?\|?
	859
[ae0c1c3]	860	istype & ?\|?( istype & is, unsigned int & ui ) with ( basic_istream_table ) {
[fd5d251]	861	int args = fmt( is, "%i", &ui ); // can be called with EOF on
[714e206]	862	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	863	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	864	return is;
	865	} // ?\|?
	866
[ae0c1c3]	867	istype & ?\|?( istype & is, long int & li ) with ( basic_istream_table ) {
[fd5d251]	868	int args = fmt( is, "%li", &li ); // can be called with EOF on
[714e206]	869	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	870	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	871	return is;
	872	} // ?\|?
	873
[ae0c1c3]	874	istype & ?\|?( istype & is, unsigned long int & ulli ) with ( basic_istream_table ) {
[fd5d251]	875	int args = fmt( is, "%li", &ulli ); // can be called with EOF on
[714e206]	876	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	877	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	878	return is;
	879	} // ?\|?
	880
[ae0c1c3]	881	istype & ?\|?( istype & is, long long int & lli ) with ( basic_istream_table ) {
[fd5d251]	882	int args = fmt( is, "%lli", &lli ); // can be called with EOF on
[714e206]	883	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	884	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	885	return is;
	886	} // ?\|?
	887
[ae0c1c3]	888	istype & ?\|?( istype & is, unsigned long long int & ulli ) with ( basic_istream_table ) {
[fd5d251]	889	int args = fmt( is, "%lli", &ulli ); // can be called with EOF on
[714e206]	890	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	891	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	892	return is;
	893	} // ?\|?
	894
[ef3ac46]	895	#if defined( __SIZEOF_INT128__ )
[e474cf09]	896	istype & ?\|?( istype & is, int128 & llli ) {
	897	return (istype &)(is \| (unsigned int128 &)llli);
	898	} // ?\|?
[fe68bdf]	899
[ae0c1c3]	900	istype & ?\|?( istype & is, unsigned int128 & ullli ) with ( basic_istream_table ) {
[fe68bdf]	901	char s[40];
	902	bool sign = false;
	903
	904	if ( fmt( is, " %[-]", s ) == 1 ) sign = true; // skip whitespace, negative sign ?
	905	// If the input is too large, the value returned is undefined. If there is no input, no value is returned
	906	if ( fmt( is, "%39[0-9]%*[0-9]", s ) == 1 ) { // take first 39 characters, ignore remaining
[e474cf09]	907	ullli = 0;
[ebf8ca5]	908	for ( i; 0 ~ @ : @; s[i] != '\0' ) {
[e474cf09]	909	ullli = ullli * 10 + s[i] - '0';
[fe68bdf]	910	} // for
[e474cf09]	911	if ( sign ) ullli = -ullli;
[3ac5fd8]	912	} // if
[fe68bdf]	913	return is;
	914	} // ?\|?
[ef3ac46]	915	#endif // __SIZEOF_INT128__
[3ce0d440]	916
[ae0c1c3]	917	istype & ?\|?( istype & is, float & f ) with ( basic_istream_table ) {
[fd5d251]	918	int args = fmt( is, "%f", &f ); // can be called with EOF on
[714e206]	919	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	920	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	921	return is;
	922	} // ?\|?
	923
[ae0c1c3]	924	istype & ?\|?( istype & is, double & d ) with ( basic_istream_table ) {
[fd5d251]	925	int args = fmt( is, "%lf", &d ); // can be called with EOF on
[714e206]	926	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	927	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	928	return is;
	929	} // ?\|?
	930
[ae0c1c3]	931	istype & ?\|?( istype & is, long double & ld ) with ( basic_istream_table ) {
[fd5d251]	932	int args = fmt( is, "%Lf", &ld ); // can be called with EOF on
[714e206]	933	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	934	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	935	return is;
	936	} // ?\|?
	937
[ae0c1c3]	938	istype & ?\|?( istype & is, float _Complex & fc ) with ( basic_istream_table ) {
[3ce0d440]	939	float re, im;
[fd5d251]	940	int args = fmt( is, "%f%fi", &re, &im ); // can be called with EOF on
[714e206]	941	if ( ! eof( is ) && args != 2 ) throwResume ExceptionInst( missing_data );
[fd5d251]	942	if ( eof( is ) && args != 2 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	943	fc = re + im * _Complex_I;
	944	return is;
	945	} // ?\|?
	946
[ae0c1c3]	947	istype & ?\|?( istype & is, double _Complex & dc ) with ( basic_istream_table ) {
[3ce0d440]	948	double re, im;
[fd5d251]	949	int args = fmt( is, "%lf%lfi", &re, &im ); // can be called with EOF on
[714e206]	950	if ( ! eof( is ) && args != 2 ) throwResume ExceptionInst( missing_data );
[fd5d251]	951	if ( eof( is ) && args != 2 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	952	dc = re + im * _Complex_I;
	953	return is;
	954	} // ?\|?
	955
[ae0c1c3]	956	istype & ?\|?( istype & is, long double _Complex & ldc ) with ( basic_istream_table ) {
[3ce0d440]	957	long double re, im;
[fd5d251]	958	int args = fmt( is, "%Lf%Lfi", &re, &im ); // can be called with EOF on
[714e206]	959	if ( ! eof( is ) && args != 2 ) throwResume ExceptionInst( missing_data );
[fd5d251]	960	if ( eof( is ) && args != 2 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	961	ldc = re + im * _Complex_I;
	962	return is;
	963	} // ?\|?
	964
[0528d79]	965	istype & ?\|?( istype & is, const char fmt[] ) with ( basic_istream_table ) { // match text
[8c13ca8]	966	size_t len = strlen( fmt );
[714e206]	967	char fmtstr[len + 16];
	968	strcpy( fmtstr, fmt ); // copy format and add %n
	969	strcpy( &fmtstr[len], "%n" );
[c015e2d]	970	len = -1;
[04138cc]	971	// scanf cursor does not move if no match, so eof cannot be detected.
[fd5d251]	972	fmt( is, fmtstr, &len ); // can be called with EOF on
	973	if ( ! eof( is ) && len == -1 ) throwResume ExceptionInst( missing_data );
	974	if ( eof( is ) && len == -1 ) throwResume ExceptionInst( end_of_file );
[0f107e4]	975	return is;
	976	} // ?\|?
[04396aa]	977
[3ce0d440]	978	// manipulators
	979	istype & ?\|?( istype & is, istype & (* manip)( istype & ) ) {
	980	return manip( is );
	981	} // ?\|?
[ff7f6d07]	982
[e474cf09]	983	void ?\|?( istype & is, istype & (* manip)( istype & ) ) {
[f842032]	984	manip( is );
[e474cf09]	985	} // ?\|?
[3ce0d440]	986
[ae0c1c3]	987	istype & nl( istype & is ) with ( basic_istream_table ) {
[3c5dee4]	988	fmt( is, "%*[^\n]" ); // ignore characters to newline
[63e129c]	989	if ( ! eof( is ) ) fmt( is, "%*c" ); // read newline
[3ce0d440]	990	return is;
[200fcb3]	991	} // nl
[0efb269]	992
[ae0c1c3]	993	istype & nlOn( istype & is ) with ( basic_istream_table ) {
[0efb269]	994	nlOn( is ); // call void returning
	995	return is;
	996	} // nlOn
	997
[ae0c1c3]	998	istype & nlOff( istype & is ) with ( basic_istream_table ) {
[0efb269]	999	nlOff( is ); // call void returning
	1000	return is;
	1001	} // nlOff
[ef3ac46]	1002	} // distribution
[44574f2]	1003
[8d321f9]	1004	// ********************************* manipulators *********************************
[3c573e9]	1005
[ef3ac46]	1006	forall( istype & \| basic_istream( istype ) ) {
[ae0c1c3]	1007	istype & ?\|?( istype & is, _Istream_Cskip f ) with ( basic_istream_table ) {
[3ac5fd8]	1008	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
[bf1cbde]	1009	if ( f.scanset ) {
	1010	int nscanset = strlen(f.scanset);
	1011	char fmtstr[ sizeof("%*[]") + nscanset ];
	1012	int pos = 0;
[e0dc038]	1013	strcpy( &fmtstr[pos], "%*[" ); pos += 3;
[bf1cbde]	1014	strcpy( &fmtstr[pos], f.scanset ); pos += nscanset;
[e0dc038]	1015	strcpy( &fmtstr[pos], "]" );
[714e206]	1016	fmt( is, fmtstr, "" ); // skip scanset, zero or more
[e0dc038]	1017	} else {
	1018	char ch;
	1019	for ( f.wd ) { // skip N characters
[fd5d251]	1020	int args = fmt( is, "%c", &ch ); // can be called with EOF on
[3ac5fd8]	1021	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[e0dc038]	1022	} // for
	1023	} // if
[0f107e4]	1024	return is;
	1025	}
[e7a8f65]	1026
[ae0c1c3]	1027	istype & ?\|?( istype & is, _Istream_Cquote f ) with( basic_istream_table, f.cstr ) {
[3ac5fd8]	1028	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
[8c13ca8]	1029	int args;
[5764204]	1030	fini: {
[714e206]	1031	char rfmt[5] = { ' ', delimiters[0], '%', 'n', '\0' };
	1032	int len = -1; // may not be set in fmt
	1033	args = fmt( is, rfmt, &len ); // remove leading whitespace and quote
	1034	if ( eof( is ) \|\| len == -1 ) break fini;
[5764204]	1035
	1036	// Change the remainder of the read into a getline by reseting the closing delimiter.
	1037	if ( delimiters[1] != '\0' ) {
	1038	delimiters[0] = delimiters[1];
	1039	delimiters[1] = '\0';
[8c13ca8]	1040	} // if
[5764204]	1041	flags.delimiter = true;
	1042	return is \| (_Istream_Cstr )&f;
	1043	} // fini
[baa1d5d]	1044	// read failed => no pattern match => set string to null
	1045	if ( ! flags.ignore && s != 0p && args == 0 ) s[0] = '\0';
[8c13ca8]	1046	if ( args == 1 && eof( is ) ) { // data but scan ended at EOF
[768d091]	1047	clearerr( is ); // => reset EOF => detect again on next read
[8c13ca8]	1048	} // if
	1049	return is;
	1050	}
	1051
[ae0c1c3]	1052	istype & ?\|?( istype & is, _Istream_Cstr f ) with( basic_istream_table, f.cstr ) {
	1053	assert(eof);
[3ac5fd8]	1054	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
[e0dc038]	1055	const char * scanset;
	1056	size_t nscanset = 0;
[4aae2bd]	1057	if ( flags.delimiter ) scanset = delimiters; // getline ?
[5764204]	1058	else scanset = f.cstr.scanset;
[e0dc038]	1059	if ( scanset ) nscanset = strlen( scanset );
[5ad2c6c7]	1060
[e0dc038]	1061	char fmtstr[nscanset + 32]; // storage for scanset and format codes
[e474cf09]	1062	fmtstr[0] = '%';
[e0dc038]	1063	int pos = 1;
	1064	int args;
	1065	bool check = true;
	1066
[5764204]	1067	if ( flags.ignore ) { check = false; fmtstr[1] = '*'; pos += 1; }
	1068	int rwd = wd;
	1069	if ( wd != -1 ) { // => just ignore versus ignore with width
[2fa0237]	1070	// wd is buffer bytes available (for input chars + null terminator)
	1071	// rwd is count of input chars
[e0dc038]	1072	// no maximum width necessary because text ignored => width is read width
[5764204]	1073	if ( flags.rwd ) check = false;
	1074	else rwd = wd - 1;
	1075	assert( rwd > 0 );
[e0dc038]	1076	pos += sprintf( &fmtstr[pos], "%d", rwd );
[e474cf09]	1077	} // if
[2f34fde]	1078
[e0dc038]	1079	if ( ! scanset ) { // %s, %s, %ws, %ws
[5764204]	1080	// fprintf( stderr, "cstr %s\n", s );
[e0dc038]	1081	strcpy( &fmtstr[pos], "s%n" );
	1082	int len = 0; // may not be set in fmt
[5764204]	1083	if ( flags.ignore ) args = fmt( is, fmtstr, &len ); // no string argument for '*'
	1084	else args = fmt( is, fmtstr, s, &len );
[7b93027e]	1085	// fprintf( stderr, "cstr %s %d %d %d\n", fmtstr, args, len, f.cstr.wd );
[737bf73]	1086
	1087	// No data read and eof is on => true eof so raise exception.
	1088	if ( len == 0 && eof( is ) ) throwResume ExceptionInst( end_of_file );
	1089
[e0dc038]	1090	if ( check && len >= rwd && ! eof( is ) ) { // might not fit
[0860d9c]	1091	char peek;
[e0dc038]	1092	fmt( is, "%c", &peek ); // check for whitespace terminator
[8c13ca8]	1093	// fprintf( stderr, "peek %d '%c'\n", args, peek );
[714e206]	1094	if ( ! eof( is ) ) { // can only fail at eof
[a1a1f37d]	1095	ungetc( peek, is );
[8c13ca8]	1096	if ( ! isspace( peek ) ) throwResume ExceptionInst( cstring_length );
[e0dc038]	1097	} // if
[0860d9c]	1098	} // if
[3e4bf0d]	1099	// FIX ME: CFA strings need to be modified to NOT change the argument for this case, then this can be removed.
[7b93027e]	1100	//fprintf( stderr, "cstr %d %d %d %d '%s'\n", flags.ignore, args, len, eof( is ), s );
	1101	//if ( ! flags.ignore && args == 0 ) s[0]= '\0'; // read failed => no pattern match => set string to null
[e0dc038]	1102	} else {
[5764204]	1103	if ( flags.delimiter ) { // getline
[e0dc038]	1104	int len = 0; // may not be set in fmt
[30548de]	1105	if ( delimiters[2] != '\0' ) { // (quote) read single character ?
[baa1d5d]	1106	sprintf( &fmtstr[pos], "c%%n" );
	1107	} else {
	1108	sprintf( &fmtstr[pos], "[^%c]%%n", delimiters[0] );
	1109	} // if
[5764204]	1110	if ( flags.ignore ) args = fmt( is, fmtstr, &len ); // no string argument for '*'
	1111	else args = fmt( is, fmtstr, s, &len );
[714e206]	1112
[737bf73]	1113	// No data read and eof is on => true eof so raise exception.
	1114	if ( len == 0 && eof( is ) ) throwResume ExceptionInst( end_of_file );
	1115
[e0dc038]	1116	if ( check && len == rwd && ! eof( is ) ) { // might not fit
[5764204]	1117	char peek;
	1118	fmt( is, "%c", &peek ); // check for delimiter
[e0dc038]	1119	if ( ! eof( is ) ) {
[5764204]	1120	if ( peek != delimiters[0] ) {
[a1a1f37d]	1121	ungetc( peek, is );
[8c13ca8]	1122	throwResume ExceptionInst( cstring_length );
[e0dc038]	1123	} // if
	1124	} // if
[4aae2bd]	1125	} else fmt( is, "%*c" ); // remove delimiter
[e0dc038]	1126	} else {
	1127	// incl %[xxx], %[xxx], %w[xxx], %w[xxx]
	1128	// excl %[^xxx], %[^xxx], %w[^xxx], %w[^xxx]
[5764204]	1129	sprintf( &fmtstr[pos], "[%s%s]%%n", flags.inex ? "^" : "", scanset );
	1130	// fprintf( stderr, "incl/excl %s %d\n", fmtstr, wd );
[e0dc038]	1131	int len = 0; // may not be set in fmt
[5764204]	1132	if ( flags.ignore ) args = fmt( is, fmtstr, &len ); // no string argument for '*'
	1133	else args = fmt( is, fmtstr, s, &len );
	1134	// fprintf( stderr, "incl/excl %s \"%s\" %d %d %d %d %d %c\n", fmtstr, s, args, wd, len, eof( is ), check, s[wd] );
[737bf73]	1135
	1136	// No data read and eof is on => true eof so raise exception.
	1137	if ( len == 0 && eof( is ) ) throwResume ExceptionInst( end_of_file );
	1138
[e0dc038]	1139	if ( check && len == rwd && ! eof( is ) ) { // might not fit
[8c13ca8]	1140	// fprintf( stderr, "overflow\n" );
[e0dc038]	1141	char peek;
	1142	fmt( is, "%c", &peek ); // check for whitespace terminator
[8c13ca8]	1143	// fprintf( stderr, "peek %d '%c'\n", args, peek );
[e0dc038]	1144	if ( ! eof( is ) ) {
[a1a1f37d]	1145	ungetc( peek, is );
[5764204]	1146	if ( flags.inex ^ strchr( scanset, peek ) != 0p ) throwResume ExceptionInst( cstring_length );
[e0dc038]	1147	} // if
	1148	} // if
[0f107e4]	1149	} // if
[5764204]	1150	if ( ! flags.ignore && args == 0 ) s[0]= '\0'; // read failed => no pattern match => set string to null
[e0dc038]	1151	} // if
	1152	if ( args == 1 && eof( is ) ) { // data but scan ended at EOF
[768d091]	1153	clearerr( is ); // => reset EOF => detect again on next read
[e0dc038]	1154	} // if
[61c7239]	1155	return is;
[e474cf09]	1156	} // ?\|?
	1157	} // distribution
[86a8be5]	1158
[94d2544]	1159	#define INPUT_FMT_IMPL( T, CODE ) \
[ef3ac46]	1160	forall( istype & \| basic_istream( istype ) ) { \
[ae0c1c3]	1161	istype & ?\|?( istype & is, _Istream_Manip(T) f ) with ( basic_istream_table ) { \
[e474cf09]	1162	enum { size = 16 }; \
	1163	char fmtstr[size]; \
	1164	if ( f.wd == -1 ) { \
	1165	snprintf( fmtstr, size, "%%%s%s", f.ignore ? "*" : "", CODE ); \
	1166	} else { \
	1167	snprintf( fmtstr, size, "%%%s%d%s", f.ignore ? "*" : "", f.wd, CODE ); \
	1168	} /* if */ \
	1169	/* printf( "%d %s %p\n", f.wd, fmtstr, &f.val ); */ \
	1170	fmt( is, fmtstr, &f.val ); \
	1171	return is; \
	1172	} /* ?\|? */ \
	1173	} // distribution
[3c573e9]	1174
[baa1d5d]	1175	INPUT_FMT_IMPL( char, "c" )
[94d2544]	1176	INPUT_FMT_IMPL( signed char, "hhi" )
	1177	INPUT_FMT_IMPL( unsigned char, "hhi" )
	1178	INPUT_FMT_IMPL( signed short int, "hi" )
	1179	INPUT_FMT_IMPL( unsigned short int, "hi" )
	1180	INPUT_FMT_IMPL( signed int, "i" )
	1181	INPUT_FMT_IMPL( unsigned int, "i" )
	1182	INPUT_FMT_IMPL( signed long int, "li" )
	1183	INPUT_FMT_IMPL( unsigned long int, "li" )
	1184	INPUT_FMT_IMPL( signed long long int, "lli" )
	1185	INPUT_FMT_IMPL( unsigned long long int, "lli" )
	1186
	1187	INPUT_FMT_IMPL( float, "f" )
	1188	INPUT_FMT_IMPL( double, "lf" )
	1189	INPUT_FMT_IMPL( long double, "Lf" )
[3c573e9]	1190
[ef3ac46]	1191	forall( istype & \| basic_istream( istype ) ) {
[e474cf09]	1192	istype & ?\|?( istype & is, _Istream_Manip(float _Complex) fc ) {
	1193	float re, im;
	1194	_Istream_Manip(float) fmtuc @= { re, fc.wd, fc.ignore };
	1195	is \| fmtuc;
	1196	&fmtuc.val = &im;
	1197	is \| fmtuc;
	1198	if ( ! fc.ignore ) fc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
	1199	return is;
	1200	} // ?\|?
	1201
	1202	istype & ?\|?( istype & is, _Istream_Manip(double _Complex) dc ) {
	1203	double re, im;
	1204	_Istream_Manip(double) fmtuc @= { re, dc.wd, dc.ignore };
	1205	is \| fmtuc;
	1206	&fmtuc.val = &im;
	1207	is \| fmtuc;
	1208	if ( ! dc.ignore ) dc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
	1209	return is;
	1210	} // ?\|?
	1211
	1212	istype & ?\|?( istype & is, _Istream_Manip(long double _Complex) ldc ) {
	1213	long double re, im;
	1214	_Istream_Manip(long double) fmtuc @= { re, ldc.wd, ldc.ignore };
	1215	is \| fmtuc;
	1216	&fmtuc.val = &im;
	1217	is \| fmtuc;
	1218	if ( ! ldc.ignore ) ldc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
	1219	return is;
	1220	} // ?\|?
	1221	} // distribution
[3c573e9]	1222
[0528d79]	1223	// ********************************* enumerations *********************************
[2f34fde]	1224
[eae8b37]	1225	forall( istype & \| istream( istype ), E \| CfaEnum( E ) \| Serial( E ) )
[ae0c1c3]	1226	istype & ?\|?( istype & is, E & e ) with ( basic_istream_table ) {
[eae8b37]	1227	// Match longest input enumerator string to enumerator labels, where enumerator names are unique.
[0528d79]	1228	size_t N = countof( E ), lnths[N], maxlen = 0; // N must be > 0, maxlen must be > 0
	1229
	1230	size_t ec = 0;
	1231	for ( s; E ) { // gather label lengths
	1232	lnths[ec] = strlen( label( s ) );
	1233	if ( lnths[ec] > maxlen ) maxlen = lnths[ec]; // gather longest length
	1234	// printf( "%s %zd\n", label( s ), lnths[e] );
	1235	ec += 1;
[eae8b37]	1236	} // for
[0528d79]	1237	// printf( "maxlen %d\n", maxlen );
[eae8b37]	1238
[04138cc]	1239	fmt( is, " " ); // remove leading whitespace
[0528d79]	1240	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
	1241	// printf( "after whitespace\n" );
	1242
	1243	char ch;
	1244	ssize_t exact = -1; // -1 => no exact match seen so far
	1245
	1246	for ( c; maxlen ) { // scan columns of the label matrix (some columns missing)
	1247	fmt( is, "%c", &ch ); // read character => get a character or EOF
	1248	// printf( "after fmt %d %d '%c'\n", c, args, ch );
	1249	if ( eof( is ) \|\| isspace( ch ) != 0 ) { // enumerator delimiter ? => end of enumerator
	1250	// printf( "match eof %zd %s\n", exact, label( fromInt( exact ) ) );
	1251	if ( exact != -1 ) { // exact match available ?
	1252	e = fromInt( exact );
	1253	return is;
	1254	} // if
	1255	// printf( "no match\n" );
	1256	// consume input character(s) as garbage
[768d091]	1257	clearerr( is ); // => read something => reset EOF => detect again on next read
[0528d79]	1258	throwResume ExceptionInst( missing_data ); // no matching enumerator
[eae8b37]	1259	} // if
	1260
[0528d79]	1261	bool match = false;
	1262	for ( r; N ) { // scan all enumeration labels for matching character
	1263	// if ( lnths[r] > c ) printf( "%d %d %d %c %s %c\n", c, r, lnths[r], ch, label( fromInt( r ) ), label( fromInt( r ) )[c] );
	1264	if ( lnths[r] > c && label( fromInt( r ) )[c] == ch ) { // label long enough and matching character ?
	1265	// printf( "match char\n" );
	1266	match = true;
	1267	if ( lnths[r] - 1 == c ) exact = r; // exact match ?
	1268	else if ( exact != -1 && lnths[exact] <= c ) exact = -1; // previous exact match too short ?
	1269	} else {
	1270	lnths[r] = 0; // mark enumerator ineligible
[eae8b37]	1271	} // if
[0528d79]	1272	} // for
	1273	// printf( "match %d\n", match );
	1274	if ( ! match ) { // no matching character in column
	1275	if ( exact != -1 ) { // exact match available ?
	1276	// printf( "match %zd unget %c\n", exact, ch );
	1277	ungetc( ch, is ); // push back last unmatching character
	1278	e = fromInt( exact );
	1279	return is;
	1280	} // if
	1281	// consume input character(s) as garbage
	1282	throwResume ExceptionInst( missing_data ); // no match found
[eae8b37]	1283	} // if
[0528d79]	1284	//printf( "loop match %d\n", match );
	1285	} // for
	1286	// printf( "loop end\n" );
	1287	e = fromInt( exact );
[eae8b37]	1288	return is;
	1289	}
[0528d79]	1290
[eae8b37]	1291	forall( ostype & \| ostream( ostype ), E \| CfaEnum( E ) ) {
	1292	ostype & ?\|?( ostype & os, E e ) {
	1293	return os \| label( e );
	1294	}
	1295	OSTYPE_VOID_IMPL( os, E )
	1296	}
	1297
[86bd7c1f]	1298	// Local Variables: //
	1299	// tab-width: 4 //
[084520f]	1300	// compile-command: "cfa iostream.cfa" //
[86bd7c1f]	1301	// End: //

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