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Last change on this file since b28ce93 was 0528d79, checked in by Peter A. Buhr <pabuhr@…>, 4 months ago
fix bugs reading enumerators
Property mode set to `100644`
File size: 49.3 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
[0528d79]	12	// Last Modified On : Sun May 18 08:23:40 2025
	13	// Update Count : 2175
[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$( os, true );
[f5d9c37]	54	return nosep( os );
[200fcb3]	55	} // ?\|?
[b12e4ad]	56	OSTYPE_VOID_IMPL( os, char )
[3ce0d440]	57
[ae0c1c3]	58	ostype & ?\|?( ostype & os, signed char sc ) with ( basic_ostream_table ) {
[6c5d92f]	59	if ( sepPrt$( 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$( os ) );
[b2ac656]	206	// os \| crealf( fc ) \| nonl;
[94d2544]	207	PRINT_WITH_DP( os, "%'g", crealf( fc ) );
	208	PRINT_WITH_DP( os, "%'+g", cimagf( fc ) );
[3c5dee4]	209	fmt( os, "i" );
[3ce0d440]	210	return os;
	211	} // ?\|?
[b12e4ad]	212	OSTYPE_VOID_IMPL( os, float _Complex )
[3ce0d440]	213
[ae0c1c3]	214	ostype & ?\|?( ostype & os, double _Complex dc ) with ( basic_ostream_table ) {
[6c5d92f]	215	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[b2ac656]	216	// os \| creal( dc ) \| nonl;
[94d2544]	217	PRINT_WITH_DP( os, "%'.*lg", creal( dc ), DBL_DIG );
	218	PRINT_WITH_DP( os, "%'+.*lg", cimag( dc ), DBL_DIG );
[3c5dee4]	219	fmt( os, "i" );
[3ce0d440]	220	return os;
	221	} // ?\|?
[b12e4ad]	222	OSTYPE_VOID_IMPL( os, double _Complex )
[3ce0d440]	223
[ae0c1c3]	224	ostype & ?\|?( ostype & os, long double _Complex ldc ) with ( basic_ostream_table ) {
[6c5d92f]	225	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[b2ac656]	226	// os \| creall( ldc ) \|\| nonl;
[94d2544]	227	PRINT_WITH_DP( os, "%'.*Lg", creall( ldc ), LDBL_DIG );
	228	PRINT_WITH_DP( os, "%'+.*Lg", cimagl( ldc ), LDBL_DIG );
[3c5dee4]	229	fmt( os, "i" );
[3ce0d440]	230	return os;
	231	} // ?\|?
[b12e4ad]	232	OSTYPE_VOID_IMPL( os, long double _Complex )
[3ce0d440]	233
[ae0c1c3]	234	ostype & ?\|?( ostype & os, const char s[] ) with ( basic_ostream_table ) {
[3ce0d440]	235	enum { Open = 1, Close, OpenClose };
[28c2933d]	236	static const unsigned char mask[256] @= { // 256 covers all Latin-1 characters
[3ce0d440]	237	// opening delimiters, no space after
[1a7203d]	238	['('] = Open, ['['] = Open, ['{'] = Open,
	239	['='] = Open, ['$'] = Open, [(unsigned char)'£'] = Open, [(unsigned char)'¥'] = Open,
	240	[(unsigned char)'¡'] = Open, [(unsigned char)'¿'] = Open, [(unsigned char)'«'] = Open,
[3ce0d440]	241	// closing delimiters, no space before
[1a7203d]	242	[','] = Close, ['.'] = Close, [';'] = Close, ['!'] = Close, ['?'] = Close,
	243	['%'] = Close, [(unsigned char)'¢'] = Close, [(unsigned char)'»'] = Close,
	244	[')'] = Close, [']'] = Close, ['}'] = Close,
[3ce0d440]	245	// opening-closing delimiters, no space before or after
[1a7203d]	246	['\''] = OpenClose, ['`'] = OpenClose, ['"'] = OpenClose, [':'] = OpenClose,
	247	[' '] = OpenClose, ['\f'] = OpenClose, ['\n'] = OpenClose, ['\r'] = OpenClose, ['\t'] = OpenClose, ['\v'] = OpenClose, // isspace
[3ce0d440]	248	}; // mask
	249
[6a33e40]	250	if ( s == 0p ) { fmt( os, "%s", "0p" ); return os; } // null pointer
[f5d9c37]	251	if ( s[0] == '\0' ) { nosep( os ); return os; } // null string => no leading/trailing separator
[3ce0d440]	252
	253	// first character IS NOT spacing or closing punctuation => add left separator
[e474cf09]	254	unsigned char ch = s[0]; // must make unsigned
[6c5d92f]	255	if ( sepPrt$( os ) && mask[ ch ] != Close && mask[ ch ] != OpenClose ) {
	256	fmt( os, "%s", sepGetCur$( os ) );
[3ce0d440]	257	} // if
	258
	259	// if string starts line, must reset to determine open state because separator is off
[6c5d92f]	260	sepReset$( os ); // reset separator
[3ce0d440]	261
	262	// last character IS spacing or opening punctuation => turn off separator for next item
[85d8153]	263	int len = strlen( s );
[e474cf09]	264	ch = s[len - 1]; // must make unsigned
[85d8153]	265	fmt( os, "%s", s ); // fmt resets seperator, but reset it again
[6c5d92f]	266	if ( sepPrt$( os ) && mask[ ch ] != Open && mask[ ch ] != OpenClose ) {
[f5d9c37]	267	sep( os );
[3ce0d440]	268	} else {
[f5d9c37]	269	nosep( os );
[3ce0d440]	270	} // if
[6c5d92f]	271	if ( ch == '\n' ) setNL$( os, true ); // check AFTER sepPrt$ call above as it resets NL flag
[85d8153]	272	return os;
	273	// return write( os, s, len );
[3ce0d440]	274	} // ?\|?
[b12e4ad]	275	OSTYPE_VOID_IMPL( os, const char * )
[3ce0d440]	276
[e7a8f65]	277	// ostype & ?\|?( ostype & os, const char16_t s[] ) {
[6c5d92f]	278	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[e474cf09]	279	// fmt( os, "%ls", s );
[3ce0d440]	280	// return os;
	281	// } // ?\|?
[d3b7937]	282
[3ce0d440]	283	// #if ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 ) // char32_t == wchar_t => ambiguous
[e7a8f65]	284	// ostype & ?\|?( ostype & os, const char32_t s[] ) {
[6c5d92f]	285	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[e474cf09]	286	// fmt( os, "%ls", s );
[3ce0d440]	287	// return os;
	288	// } // ?\|?
	289	// #endif // ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 )
[d3b7937]	290
[e7a8f65]	291	// ostype & ?\|?( ostype & os, const wchar_t s[] ) {
[6c5d92f]	292	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[e474cf09]	293	// fmt( os, "%ls", s );
[3ce0d440]	294	// return os;
	295	// } // ?\|?
	296
[ae0c1c3]	297	ostype & ?\|?( ostype & os, const void * p ) with ( basic_ostream_table ) {
[6c5d92f]	298	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[3ce0d440]	299	fmt( os, "%p", p );
	300	return os;
	301	} // ?\|?
[b12e4ad]	302	OSTYPE_VOID_IMPL( os, const void * )
[3ce0d440]	303
	304	// manipulators
	305	ostype & ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) {
[e474cf09]	306	return manip( os );
[200fcb3]	307	} // ?\|?
[ae0c1c3]	308	void ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) with ( basic_ostream_table ) {
[e474cf09]	309	manip( os );
[6c5d92f]	310	if ( getPrt$( os ) ) ends( os ); // something printed ?
	311	setPrt$( os, false ); // turn off
[3ce0d440]	312	} // ?\|?
	313
[ae0c1c3]	314	ostype & nl( ostype & os ) with ( basic_ostream_table ) {
[9d362a0]	315	(ostype &)(os \| '\n');
[6c5d92f]	316	setPrt$( os, false ); // turn off
	317	setNL$( os, true );
[f5d9c37]	318	return nosep( os ); // prepare for next line
[200fcb3]	319	} // nl
	320
[ae0c1c3]	321	ostype & nonl( ostype & os ) with ( basic_ostream_table ) {
[6c5d92f]	322	setPrt$( os, false ); // turn off
[3ce0d440]	323	return os;
[200fcb3]	324	} // nonl
[3ce0d440]	325
[ae0c1c3]	326	ostype & nlOn( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	327	nlOn( os ); // call void returning
[3ce0d440]	328	return os;
[f5d9c37]	329	} // nlOn
[3ce0d440]	330
[ae0c1c3]	331	ostype & nlOff( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	332	nlOff( os ); // call void returning
[3ce0d440]	333	return os;
[f5d9c37]	334	} // nlOff
[6de9f4a]	335
[ae0c1c3]	336	ostype & sepVal( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	337	return (ostype &)(os \| sepGet( os ));
	338	} // sepVal
	339
[ae0c1c3]	340	ostype & sepTupleVal( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	341	return os \| sepGetTuple( os );
	342	} // sepTupleVal
	343
[ae0c1c3]	344	ostype & sep( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	345	sep( os ); // call void returning
[3ce0d440]	346	return os;
[f5d9c37]	347	} // sep
[b6dc097]	348
[ae0c1c3]	349	ostype & nosep( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	350	nosep( os ); // call void returning
[3ce0d440]	351	return os;
[f5d9c37]	352	} // nosep
[cf16f94]	353
[ae0c1c3]	354	ostype & sepOn( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	355	sepOn( os ); // call void returning
[200fcb3]	356	return os;
[f5d9c37]	357	} // sepOn
[200fcb3]	358
[ae0c1c3]	359	ostype & sepOff( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	360	sepOff( os ); // call void returning
[200fcb3]	361	return os;
[f5d9c37]	362	} // sepOff
[85d8153]	363	} // distribution
[e474cf09]	364
[c443d1d]	365	// tuples
[fd54fef]	366	forall( ostype &, T, Params... \| writeable( T, ostype ) \| { ostype & ?\|?( ostype &, Params ); } ) {
[ae0c1c3]	367	ostype & ?\|?( ostype & os, T arg, Params rest ) with ( basic_ostream_table ) {
[9d362a0]	368	(ostype &)(os \| arg); // print first argument
[6c5d92f]	369	sepSetCur$( os, sepGetTuple( os ) ); // switch to tuple separator
[9d362a0]	370	(ostype &)(os \| rest); // print remaining arguments
[6c5d92f]	371	sepSetCur$( os, sepGet( os ) ); // switch to regular separator
[200fcb3]	372	return os;
	373	} // ?\|?
[ae0c1c3]	374	void ?\|?( ostype & os, T arg, Params rest ) with ( basic_ostream_table ) {
[65240bb]	375	// (ostype &)(?\|?( os, arg, rest )); ends( os );
[9d362a0]	376	(ostype &)(os \| arg); // print first argument
[6c5d92f]	377	sepSetCur$( os, sepGetTuple( os ) ); // switch to tuple separator
[9d362a0]	378	(ostype &)(os \| rest); // print remaining arguments
[6c5d92f]	379	sepSetCur$( os, sepGet( os ) ); // switch to regular separator
[65240bb]	380	ends( os );
[200fcb3]	381	} // ?\|?
	382	} // distribution
[c443d1d]	383
[61c7239]	384	// writes the range [begin, end) to the given stream
[fd54fef]	385	forall( ostype &, elt_type \| writeable( elt_type, ostype ), iterator_type \| iterator( iterator_type, elt_type ) ) {
[61c7239]	386	void write( iterator_type begin, iterator_type end, ostype & os ) {
	387	void print( elt_type i ) { os \| i; }
	388	for_each( begin, end, print );
	389	} // ?\|?
	390
	391	void write_reverse( iterator_type begin, iterator_type end, ostype & os ) {
	392	void print( elt_type i ) { os \| i; }
	393	for_each_reverse( begin, end, print );
	394	} // ?\|?
	395	} // distribution
	396
[8d321f9]	397	// ********************************* manipulators *********************************
[3c573e9]	398
[8d321f9]	399	// ********************************* integral *********************************
[3c573e9]	400
	401	static const char * shortbin[] = { "0", "1", "10", "11", "100", "101", "110", "111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
	402	static const char * longbin[] = { "0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
	403
	404	// Default prefix for non-decimal prints is 0b, 0, 0x.
[94d2544]	405	#define INTEGRAL_FMT_IMPL( T, IFMTNP, IFMTP ) \
[85d8153]	406	forall( ostype & \| basic_ostream( ostype ) ) { \
[ae0c1c3]	407	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) with ( basic_ostream_table ) { \
[6c5d92f]	408	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) ); \
[3c573e9]	409	\
	410	if ( f.base == 'b' \|\| f.base == 'B' ) { /* bespoke binary format */ \
[7fd71c7]	411	int bits = high1( f.val ); /* position of most significant bit */ \
	412	if ( bits == 0 ) bits = 1; /* 0 value => force one bit to print */ \
[c7978c0]	413	int spaces; \
[3c573e9]	414	if ( ! f.flags.left ) { /* right justified ? */ \
	415	/* Note, base prefix then zero padding or spacing then prefix. */ \
[c7978c0]	416	if ( f.flags.pc ) { \
	417	spaces = f.wd - f.pc; \
	418	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
	419	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
[3c573e9]	420	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
[c7978c0]	421	spaces = f.pc - bits; \
[3c573e9]	422	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
	423	} else { \
[c7978c0]	424	spaces = f.wd - bits; \
	425	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
	426	if ( f.flags.pad0 ) { \
	427	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
	428	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
	429	} else { \
	430	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
	431	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
	432	} /* if */ \
	433	} /* if */ \
	434	} else { \
	435	if ( ! f.flags.nobsdp ) fmt( os, "0%c", f.base ); \
	436	if ( f.flags.pc ) { \
	437	spaces = f.pc - bits; \
	438	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
	439	spaces = f.wd - f.pc; \
	440	} else { /* pad0 flag ignored with left flag */ \
	441	spaces = f.wd - bits; \
[3c573e9]	442	} /* if */ \
[c7978c0]	443	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
[3c573e9]	444	} /* if */ \
[fd4d3017]	445	int shift = floor( bits - 1, 4 ); \
[3c573e9]	446	typeof( f.val ) temp = f.val; \
	447	fmt( os, "%s", shortbin[(temp >> shift) & 0xf] ); \
	448	for () { \
	449	shift -= 4; \
	450	if ( shift < 0 ) break; \
	451	temp = f.val; \
	452	fmt( os, "%s", longbin[(temp >> shift) & 0xf] ); \
	453	} /* for */ \
	454	if ( f.flags.left && spaces > 0 ) fmt( os, "%*s", spaces, " " ); \
	455	return os; \
[2c60c644]	456	} /* if */ \
[3c573e9]	457	\
	458	char fmtstr[sizeof(IFMTP)]; /* sizeof includes '\0' */ \
	459	if ( ! f.flags.pc ) memcpy( &fmtstr, IFMTNP, sizeof(IFMTNP) ); \
	460	else memcpy( &fmtstr, IFMTP, sizeof(IFMTP) ); \
[0c51f9ad]	461	int star = 5; /* position before first '' / \
[3c573e9]	462	\
	463	/* Insert flags into spaces before '', from right to left. / \
	464	if ( ! f.flags.nobsdp ) { fmtstr[star] = '#'; star -= 1; } \
	465	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
[2c60c644]	466	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
[3c573e9]	467	if ( f.flags.pad0 && ! f.flags.pc ) { fmtstr[star] = '0'; star -= 1; } \
[0c51f9ad]	468	fmtstr[star] = '\''; star -= 1; /* locale */ \
[3c573e9]	469	fmtstr[star] = '%'; \
[09a767e]	470	\
	471	/* Special case printing 0 in hexadecimal as printf does not put the base. */ \
	472	if ( (f.base == 'x' \| f.base == 'X') && ! f.flags.nobsdp && f.val == 0 ) { \
	473	fmt( os, f.base == 'x' ? "0x" : "0X" ); \
	474	f.wd -= 2; \
	475	if ( f.wd < 0 ) f.wd = 1; \
	476	} /* if */ \
[3c573e9]	477	\
	478	if ( ! f.flags.pc ) { /* no precision */ \
	479	fmtstr[sizeof(IFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
[2c60c644]	480	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
[3c573e9]	481	fmt( os, &fmtstr[star], f.wd, f.val ); \
	482	} else { /* precision */ \
	483	fmtstr[sizeof(IFMTP)-2] = f.base; /* sizeof includes '\0' */ \
[2c60c644]	484	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
[3c573e9]	485	fmt( os, &fmtstr[star], f.wd, f.pc, f.val ); \
	486	} /* if */ \
	487	return os; \
	488	} /* ?\|? */ \
[b12e4ad]	489	OSTYPE_VOID_IMPL( os, _Ostream_Manip(T) ) \
[3c573e9]	490	} // distribution
	491
[94d2544]	492	INTEGRAL_FMT_IMPL( signed char, " hh ", " .*hh " )
	493	INTEGRAL_FMT_IMPL( unsigned char, " hh ", " .*hh " )
	494	INTEGRAL_FMT_IMPL( signed short int, " h ", " .*h " )
	495	INTEGRAL_FMT_IMPL( unsigned short int, " h ", " .*h " )
	496	INTEGRAL_FMT_IMPL( signed int, " * ", " . " )
	497	INTEGRAL_FMT_IMPL( unsigned int, " * ", " . " )
	498	INTEGRAL_FMT_IMPL( signed long int, " l ", " .*l " )
	499	INTEGRAL_FMT_IMPL( unsigned long int, " l ", " .*l " )
	500	INTEGRAL_FMT_IMPL( signed long long int, " ll ", " .*ll " )
	501	INTEGRAL_FMT_IMPL( unsigned long long int, " ll ", " .*ll " )
[bd5b443]	502
[2c60c644]	503
	504	#if defined( __SIZEOF_INT128__ )
	505	// Default prefix for non-decimal prints is 0b, 0, 0x.
[85d8153]	506	forall( ostype & \| basic_ostream( ostype ) )
[2c60c644]	507	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 ) {
	508	int wd = 1; // f.wd is never 0 because 0 implies left-pad
	509	if ( val > power ) { // subdivide value into printable 64-bit values
	510	base_128( os, val / power, power, f, maxdig, bits, cnt + 1 ); // recursive
	511	f.val = val % power;
[ac9ba12]	512	if ( cnt == 1 && f.flags.left ) { wd = f.wd; f.wd = maxdig; } // copy f.wd and reset for printing middle chunk
[7d9bbef]	513	// 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]	514	// 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]	515	(ostype &)(os \| f);
	516	if ( cnt == 1 ) {
[ac9ba12]	517	if ( f.flags.left ) { wd -= maxdig; f.wd = wd < 0 ? 1 : wd; } // update and restore f.wd for printing end chunk
[f5d9c37]	518	nosep( os ); // no seperator between chunks
[2c60c644]	519	} // if
[ac9ba12]	520	} else { // print start chunk
[2c60c644]	521	f.val = val;
	522	// f.pc is unsigned => use wd
	523	if ( f.flags.pc && f.pc > maxdig * cnt ) { wd = f.pc - maxdig * cnt; f.pc = wd < 0 ? 0 : wd; }
	524	else { f.flags.pc = false; f.pc = 0; }
	525
	526	if ( ! f.flags.left ) { // right justify
	527	wd = f.wd - maxdig * cnt;
	528	f.wd = wd < 0 ? 1 : wd;
	529	wd = maxdig;
	530	} else { // left justify
	531	if ( cnt != 0 ) { // value >= 2^64 ?
	532	unsigned int dig, bs = 0;
[ac9ba12]	533	// compute size of prefix digits and base
[2c60c644]	534	if ( f.base == 'd' \|\| f.base == 'u' ) { // no base prefix
	535	dig = ceil( log10( f.val ) ); // use floating-point
	536	if ( f.base == 'd' && (f.flags.neg \|\| f.flags.sign) ) bs = 1; // sign ?
	537	} else {
[53fd995]	538	dig = ceiling_div( high1( f.val ), bits );
[2c60c644]	539	if ( ! f.flags.nobsdp ) { // base prefix ?
	540	if ( f.base == 'o' ) {
	541	// 0 prefix for octal is not added for precision with leading zero
	542	if ( f.pc <= dig ) bs = 1; // 1 character prefix
	543	} else bs = 2; // 2 character prefix
	544	} // if
	545	} // if
	546	wd = f.wd - (f.pc > dig ? f.pc : dig) - bs; // precision > leading digits ?
	547	if ( wd < 0 ) wd = 1;
	548	f.wd = 1;
	549	} // if
	550	// all manipulators handled implicitly for value < 2^64
	551	} // if
	552	// prior checks ensure wd not negative
	553
	554	if ( f.flags.neg ) f.val = -f.val;
[7d9bbef]	555	// 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]	556	// 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]	557	(ostype &)(os \| f);
	558
[ac9ba12]	559	// remaining middle and end chunks are padded with 0s on the left
[2c60c644]	560	if ( ! f.flags.left ) { f.flags.pad0 = true; f.flags.pc = false; } // left pad with 0s
	561	else { f.pc = maxdig; f.flags.pc = true; } // left pad with precision
[ac9ba12]	562
[f5d9c37]	563	if ( cnt != 0 ) nosep( os ); // no seperator between chunks
[ac9ba12]	564	f.wd = wd; // reset f.wd for next chunk
	565	f.flags.sign = false; // no leading +/- sign
	566	f.flags.nobsdp = true; // no leading base prefix
[2c60c644]	567	} // if
	568	} // base_128
	569
[94d2544]	570	#define INTEGRAL_FMT_IMPL128( T ) \
[85d8153]	571	forall( ostype & \| basic_ostream( ostype ) ) { \
[2c60c644]	572	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
	573	_Ostream_Manip(uint64_t) fmt; \
	574	fmt.[wd, pc, base, all] = f.[wd, pc, base, all]; \
	575	if ( f.base == 'b' \| f.base == 'B' ) { \
	576	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 64, 1 ); \
	577	} else if ( f.base == 'o' ) { \
	578	base_128( os, f.val, (unsigned int128)1 << 63, fmt, 21, 3 ); \
	579	} else if ( f.base == 'd' \|\| f.base == 'u' ) { \
	580	if ( f.base == 'd' && f.val < 0 ) { f.val = -f.val; fmt.flags.neg = true; } \
	581	base_128( os, f.val, (unsigned int128)10_000_000_000_000_000_000UL, fmt, 19, 0 ); \
	582	} else { \
	583	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 16, 4 ); \
	584	} /* if */ \
	585	return os; \
	586	} /* ?\|? */ \
[b12e4ad]	587	OSTYPE_VOID_IMPL( os, _Ostream_Manip(T) ) \
[2c60c644]	588	} // distribution
	589
[94d2544]	590	INTEGRAL_FMT_IMPL128( int128 )
	591	INTEGRAL_FMT_IMPL128( unsigned int128 )
[2c60c644]	592	#endif // __SIZEOF_INT128__
[bd5b443]	593
[8d321f9]	594	// ********************************* floating point *********************************
[3c573e9]	595
[fd4c009]	596	static const char *suffixes[] = {
	597	"y", "z", "a", "f", "p", "n", "u", "m", "",
	598	"K", "M", "G", "T", "P", "E", "Z", "Y"
[737bf73]	599	};
[fd4c009]	600	#define SUFFIXES_START (-24) /* Smallest power for which there is a suffix defined. */
	601	#define SUFFIXES_END (SUFFIXES_START + (int)((sizeof(suffixes) / sizeof(char ) - 1) 3))
	602
[94d2544]	603	#define PRINT_WITH_DP2( os, format, ... ) \
[3c573e9]	604	{ \
[fd4c009]	605	if ( ! f.flags.eng ) { \
	606	len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
[bcbc7e4]	607	if ( isfinite( f.val ) && ! f.flags.nobsdp ) { /* if number, print decimal point when no fraction or exponent */ \
[09a767e]	608	for ( i = 0; i < len && buf[i] != '.' && buf[i] != 'e' && buf[i] != 'E' && \
[bcbc7e4]	609	buf[i] != 'p' && buf[i] != 'P'; i += 1 ); /* decimal point or scientific ? */ \
[fd4c009]	610	if ( i == len ) { \
	611	if ( ! f.flags.left ) { \
	612	buf[i] = '.'; buf[i + 1] = '\0'; \
	613	if ( buf[0] == ' ' ) bufbeg = 1; /* decimal point within width */ \
	614	} else { \
	615	for ( i = 0; i < len && buf[i] != ' '; i += 1 ); /* trailing blank ? */ \
	616	buf[i] = '.'; \
	617	if ( i == len ) buf[i + 1] = '\0'; \
	618	} /* if */ \
[3c573e9]	619	} /* if */ \
	620	} /* if */ \
[fd4c009]	621	} else { \
	622	int exp10, len2; \
	623	eng( f.val, f.pc, exp10 ); /* changes arguments */ \
[b1e614f4]	624	/* printf( "%g %d %d %d %s\n", f.val, f.wd, f.pc, exp10, format ); */ \
[fd4c009]	625	if ( ! f.flags.left && f.wd > 1 ) { \
[b1e614f4]	626	/* Exponent size: 'e', optional minus sign, number of digits: log10(0) => undefined */ \
	627	f.wd -= 1 + (exp10 < 0 ? 1 : 0) + lrint( floor( exp10 == 0 ? 0 : log10( abs( exp10 ) ) ) ) + 1; \
[fd4c009]	628	if ( f.wd < 1 ) f.wd = 1; \
	629	} /* if */ \
	630	len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
	631	if ( f.flags.left ) { \
	632	for ( len -= 1; len > 0 && buf[len] == ' '; len -= 1 ); \
	633	len += 1; \
	634	} /* if */ \
	635	if ( ! f.flags.nobsdp \|\| (exp10 < SUFFIXES_START) \|\| (exp10 > SUFFIXES_END) ) { \
[fb907d3]	636	len2 = snprintf( &buf[len], size - len, "e%d", (int)exp10 /* ambiguity with function exp10 */ ); \
[fd4c009]	637	} else { \
	638	len2 = snprintf( &buf[len], size - len, "%s", suffixes[(exp10 - SUFFIXES_START) / 3] ); \
	639	} /* if */ \
	640	if ( f.flags.left && len + len2 < f.wd ) buf[len + len2] = ' '; \
[3c573e9]	641	} /* if */ \
	642	fmt( os, "%s", &buf[bufbeg] ); \
	643	}
	644
[94d2544]	645	#define FLOATING_POINT_FMT_IMPL( T, DFMTNP, DFMTP ) \
[85d8153]	646	forall( ostype & \| basic_ostream( ostype ) ) { \
[fd4c009]	647	static void eng( T &value, int & pc, int & exp10 ) { \
	648	exp10 = lrint( floor( log10( abs( value ) ) ) ); /* round to desired precision */ \
	649	if ( exp10 < 0 ) exp10 -= 2; \
	650	exp10 = floor( exp10, 3 ); \
	651	value *= pow( 10.0, -exp10 ); \
[0d49efb]	652	if ( pc < 0 ) pc = 3; \
[fd4c009]	653	} /* eng */ \
	654	\
[ae0c1c3]	655	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) with ( basic_ostream_table ) { \
[fd4c009]	656	enum { size = 48 }; \
	657	char buf[size]; \
	658	int bufbeg = 0, i, len; \
	659	\
[6c5d92f]	660	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) ); \
[fd4c009]	661	char fmtstr[sizeof(DFMTP) + 8]; /* sizeof includes '\0' */ \
[3c573e9]	662	if ( ! f.flags.pc ) memcpy( &fmtstr, DFMTNP, sizeof(DFMTNP) ); \
	663	else memcpy( &fmtstr, DFMTP, sizeof(DFMTP) ); \
[b5f17e14]	664	int star = 5; /* position before first '' / \
[3c573e9]	665	\
	666	/* Insert flags into spaces before '', from right to left. / \
	667	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
	668	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
	669	if ( f.flags.pad0 ) { fmtstr[star] = '0'; star -= 1; } \
[b5f17e14]	670	fmtstr[star] = '\''; star -= 1; /* locale */ \
[3c573e9]	671	fmtstr[star] = '%'; \
	672	\
	673	if ( ! f.flags.pc ) { /* no precision */ \
	674	fmtstr[sizeof(DFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
[b1e614f4]	675	/* printf( "%g %d %s\n", f.val, f.wd, &fmtstr[star] ); */ \
[94d2544]	676	PRINT_WITH_DP2( os, &fmtstr[star], f.wd, f.val ) \
[3c573e9]	677	} else { /* precision */ \
	678	fmtstr[sizeof(DFMTP)-2] = f.base; /* sizeof includes '\0' */ \
	679	/* printf( "%g %d %d %s\n", f.val, f.wd, f.pc, &fmtstr[star] ); */ \
[94d2544]	680	PRINT_WITH_DP2( os, &fmtstr[star], f.wd, f.pc, f.val ) \
[3c573e9]	681	} /* if */ \
	682	return os; \
	683	} /* ?\|? */ \
[e3fea42]	684	\
[b12e4ad]	685	OSTYPE_VOID_IMPL( os, _Ostream_Manip(T) ) \
[3c573e9]	686	} // distribution
	687
[94d2544]	688	FLOATING_POINT_FMT_IMPL( double, " * ", " . " )
	689	FLOATING_POINT_FMT_IMPL( long double, " L ", " .*L " )
[3c573e9]	690
[8d321f9]	691	// ********************************* character *********************************
[3c573e9]	692
[85d8153]	693	forall( ostype & \| basic_ostream( ostype ) ) {
[ae0c1c3]	694	ostype & ?\|?( ostype & os, _Ostream_Manip(char) f ) with ( basic_ostream_table ) {
[4f37255]	695	if ( f.base != 'c' ) { // bespoke binary/octal/hex format
[3c573e9]	696	_Ostream_Manip(unsigned char) fmtuc @= { f.val, f.wd, f.pc, f.base, {'\0'} };
	697	fmtuc.flags.pc = f.flags.pc;
	698	fmtuc.flags.nobsdp = f.flags.nobsdp;
	699	// os \| fmtuc \| nonl;
	700	(ostype &)(os \| fmtuc);
	701	return os;
	702	} // if
	703
[6c5d92f]	704	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[3c573e9]	705
	706	#define CFMTNP "% * "
[4f37255]	707	char fmtstr[sizeof(CFMTNP)]; // sizeof includes '\0'
[3c573e9]	708	memcpy( &fmtstr, CFMTNP, sizeof(CFMTNP) );
[4f37255]	709	int star = 1; // position before first '*'
[3c573e9]	710
	711	// Insert flags into spaces before '*', from right to left.
	712	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
	713	fmtstr[star] = '%';
	714
[4f37255]	715	fmtstr[sizeof(CFMTNP)-2] = f.base; // sizeof includes '\0'
[3c573e9]	716	// printf( "%d %s\n", f.wd, &fmtstr[star] );
	717	fmt( os, &fmtstr[star], f.wd, f.val );
	718	return os;
	719	} // ?\|?
[b12e4ad]	720	OSTYPE_VOID_IMPL( os, _Ostream_Manip(char) )
[3c573e9]	721	} // distribution
	722
[8d321f9]	723	// ********************************* C string *********************************
[3c573e9]	724
[85d8153]	725	forall( ostype & \| basic_ostream( ostype ) ) {
[ae0c1c3]	726	ostype & ?\|?( ostype & os, _Ostream_Manip(const char *) f ) with ( basic_ostream_table ) {
[3c573e9]	727	if ( ! f.val ) return os; // null pointer ?
	728
	729	if ( f.base != 's' ) { // bespoke binary/octal/hex format
	730	_Ostream_Manip(unsigned char) fmtuc @= { 0, f.wd, f.pc, f.base, {'\0'} };
	731	fmtuc.flags.pc = f.flags.pc;
	732	fmtuc.flags.nobsdp = f.flags.nobsdp;
[ebf8ca5]	733	for ( i; 0 ~ @ : @; f.val[i] != '\0' ) {
[3c573e9]	734	fmtuc.val = f.val[i];
	735	// os \| fmtuc \| nonl;
	736	(ostype &)(os \| fmtuc);
	737	} // for
	738	return os;
	739	} // if
	740
[f5d9c37]	741	if ( f.val[0] != '\0' && // null string => no leading separator
	742	sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[3c573e9]	743
	744	#define SFMTNP "% * "
	745	#define SFMTP "% . "
	746	char fmtstr[sizeof(SFMTP)]; // sizeof includes '\0'
	747	if ( ! f.flags.pc ) memcpy( &fmtstr, SFMTNP, sizeof(SFMTNP) );
	748	else memcpy( &fmtstr, SFMTP, sizeof(SFMTP) );
	749	int star = 1; // position before first '*'
	750
	751	// Insert flags into spaces before '*', from right to left.
	752	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
	753	fmtstr[star] = '%';
	754
	755	if ( ! f.flags.pc ) { // no precision
	756	// printf( "%d %s\n", f.wd, &fmtstr[star] );
	757	fmtstr[sizeof(SFMTNP)-2] = f.base; // sizeof includes '\0'
	758	fmt( os, &fmtstr[star], f.wd, f.val );
	759	} else { // precision
	760	fmtstr[sizeof(SFMTP)-2] = f.base; // sizeof includes '\0'
	761	// printf( "%d %d %s\n", f.wd, f.pc, &fmtstr[star] );
	762	fmt( os, &fmtstr[star], f.wd, f.pc, f.val );
	763	} // if
[f5d9c37]	764	if ( f.val[0] == '\0' ) { nosep( os ); } // null string => no trailing separator
[3c573e9]	765	return os;
	766	} // ?\|?
[b12e4ad]	767	OSTYPE_VOID_IMPL( os, _Ostream_Manip(const char *) )
[3c573e9]	768	} // distribution
	769
	770
[8d321f9]	771	// ********************************* istream *********************************
[3c573e9]	772
[e56cfdb0]	773
[c015e2d]	774	#define FALSE "false"
	775	#define TRUE "true"
	776
[ef3ac46]	777	forall( istype & \| basic_istream( istype ) ) {
[ae0c1c3]	778	istype & ?\|?( istype & is, bool & b ) with ( basic_istream_table ) {
[c015e2d]	779	int len = -1; // len not set if no match
[04138cc]	780	fmt( is, " " ); // remove leading whitespace
	781	fmt( is, FALSE "%n", &len ); // try false, returns 0
[d796be70]	782	if ( len != sizeof( FALSE ) - 1 ) { // -1 removes null terminate
[04138cc]	783	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
	784	fmt( is, " " ); // remove leading whitespace
	785	fmt( is, TRUE "%n", &len ); // try true, returns 0
[c015e2d]	786	if ( len != sizeof( TRUE ) - 1 ) throwResume ExceptionInst( missing_data );
[2f4c910]	787	b = true;
	788	} else {
	789	b = false;
[3ce0d440]	790	} // if
	791	return is;
	792	} // ?\|?
	793
[ae0c1c3]	794	istype & ?\|?( istype & is, char & c ) with ( basic_istream_table ) {
[0efb269]	795	char temp;
	796	for () {
[fd5d251]	797	int args = fmt( is, "%c", &temp ); // can be called with EOF on
[3ac5fd8]	798	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
	799	assert( args == 1 ); // if not EOF => a single character must be read
[0efb269]	800	// do not overwrite parameter with newline unless appropriate
[c8371b5]	801	if ( temp != '\n' \|\| getANL$( is ) ) { c = temp; break; }
[0efb269]	802	} // for
[3ce0d440]	803	return is;
	804	} // ?\|?
	805
[ae0c1c3]	806	istype & ?\|?( istype & is, signed char & sc ) with ( basic_istream_table ) {
[3ac5fd8]	807	int args = fmt( is, "%hhi", &sc ); // can be multiple characters (100)
	808	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	809	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	810	return is;
	811	} // ?\|?
	812
[ae0c1c3]	813	istype & ?\|?( istype & is, unsigned char & usc ) with ( basic_istream_table ) {
[3ac5fd8]	814	int args = fmt( is, "%hhi", &usc ); // can be multiple characters (-100)
[714e206]	815	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	816	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	817	return is;
	818	} // ?\|?
	819
[ae0c1c3]	820	istype & ?\|?( istype & is, short int & si ) with ( basic_istream_table ) {
[fd5d251]	821	int args = fmt( is, "%hi", &si ); // can be called with EOF on
[714e206]	822	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	823	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	824	return is;
	825	} // ?\|?
	826
[ae0c1c3]	827	istype & ?\|?( istype & is, unsigned short int & usi ) with ( basic_istream_table ) {
[fd5d251]	828	int args = fmt( is, "%hi", &usi ); // can be called with EOF on
[714e206]	829	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	830	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	831	return is;
	832	} // ?\|?
	833
[ae0c1c3]	834	istype & ?\|?( istype & is, int & i ) with ( basic_istream_table ) {
[fd5d251]	835	int args = fmt( is, "%i", &i ); // can be called with EOF on
[714e206]	836	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	837	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	838	return is;
	839	} // ?\|?
	840
[ae0c1c3]	841	istype & ?\|?( istype & is, unsigned int & ui ) with ( basic_istream_table ) {
[fd5d251]	842	int args = fmt( is, "%i", &ui ); // can be called with EOF on
[714e206]	843	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	844	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	845	return is;
	846	} // ?\|?
	847
[ae0c1c3]	848	istype & ?\|?( istype & is, long int & li ) with ( basic_istream_table ) {
[fd5d251]	849	int args = fmt( is, "%li", &li ); // can be called with EOF on
[714e206]	850	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	851	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	852	return is;
	853	} // ?\|?
	854
[ae0c1c3]	855	istype & ?\|?( istype & is, unsigned long int & ulli ) with ( basic_istream_table ) {
[fd5d251]	856	int args = fmt( is, "%li", &ulli ); // can be called with EOF on
[714e206]	857	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	858	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	859	return is;
	860	} // ?\|?
	861
[ae0c1c3]	862	istype & ?\|?( istype & is, long long int & lli ) with ( basic_istream_table ) {
[fd5d251]	863	int args = fmt( is, "%lli", &lli ); // can be called with EOF on
[714e206]	864	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	865	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	866	return is;
	867	} // ?\|?
	868
[ae0c1c3]	869	istype & ?\|?( istype & is, unsigned long long int & ulli ) with ( basic_istream_table ) {
[fd5d251]	870	int args = fmt( is, "%lli", &ulli ); // can be called with EOF on
[714e206]	871	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	872	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	873	return is;
	874	} // ?\|?
	875
[ef3ac46]	876	#if defined( __SIZEOF_INT128__ )
[e474cf09]	877	istype & ?\|?( istype & is, int128 & llli ) {
	878	return (istype &)(is \| (unsigned int128 &)llli);
	879	} // ?\|?
[fe68bdf]	880
[ae0c1c3]	881	istype & ?\|?( istype & is, unsigned int128 & ullli ) with ( basic_istream_table ) {
[fe68bdf]	882	char s[40];
	883	bool sign = false;
	884
	885	if ( fmt( is, " %[-]", s ) == 1 ) sign = true; // skip whitespace, negative sign ?
	886	// If the input is too large, the value returned is undefined. If there is no input, no value is returned
	887	if ( fmt( is, "%39[0-9]%*[0-9]", s ) == 1 ) { // take first 39 characters, ignore remaining
[e474cf09]	888	ullli = 0;
[ebf8ca5]	889	for ( i; 0 ~ @ : @; s[i] != '\0' ) {
[e474cf09]	890	ullli = ullli * 10 + s[i] - '0';
[fe68bdf]	891	} // for
[e474cf09]	892	if ( sign ) ullli = -ullli;
[3ac5fd8]	893	} // if
[fe68bdf]	894	return is;
	895	} // ?\|?
[ef3ac46]	896	#endif // __SIZEOF_INT128__
[3ce0d440]	897
[ae0c1c3]	898	istype & ?\|?( istype & is, float & f ) with ( basic_istream_table ) {
[fd5d251]	899	int args = fmt( is, "%f", &f ); // can be called with EOF on
[714e206]	900	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	901	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	902	return is;
	903	} // ?\|?
	904
[ae0c1c3]	905	istype & ?\|?( istype & is, double & d ) with ( basic_istream_table ) {
[fd5d251]	906	int args = fmt( is, "%lf", &d ); // can be called with EOF on
[714e206]	907	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	908	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	909	return is;
	910	} // ?\|?
	911
[ae0c1c3]	912	istype & ?\|?( istype & is, long double & ld ) with ( basic_istream_table ) {
[fd5d251]	913	int args = fmt( is, "%Lf", &ld ); // can be called with EOF on
[714e206]	914	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	915	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	916	return is;
	917	} // ?\|?
	918
[ae0c1c3]	919	istype & ?\|?( istype & is, float _Complex & fc ) with ( basic_istream_table ) {
[3ce0d440]	920	float re, im;
[fd5d251]	921	int args = fmt( is, "%f%fi", &re, &im ); // can be called with EOF on
[714e206]	922	if ( ! eof( is ) && args != 2 ) throwResume ExceptionInst( missing_data );
[fd5d251]	923	if ( eof( is ) && args != 2 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	924	fc = re + im * _Complex_I;
	925	return is;
	926	} // ?\|?
	927
[ae0c1c3]	928	istype & ?\|?( istype & is, double _Complex & dc ) with ( basic_istream_table ) {
[3ce0d440]	929	double re, im;
[fd5d251]	930	int args = fmt( is, "%lf%lfi", &re, &im ); // can be called with EOF on
[714e206]	931	if ( ! eof( is ) && args != 2 ) throwResume ExceptionInst( missing_data );
[fd5d251]	932	if ( eof( is ) && args != 2 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	933	dc = re + im * _Complex_I;
	934	return is;
	935	} // ?\|?
	936
[ae0c1c3]	937	istype & ?\|?( istype & is, long double _Complex & ldc ) with ( basic_istream_table ) {
[3ce0d440]	938	long double re, im;
[fd5d251]	939	int args = fmt( is, "%Lf%Lfi", &re, &im ); // can be called with EOF on
[714e206]	940	if ( ! eof( is ) && args != 2 ) throwResume ExceptionInst( missing_data );
[fd5d251]	941	if ( eof( is ) && args != 2 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	942	ldc = re + im * _Complex_I;
	943	return is;
	944	} // ?\|?
	945
[0528d79]	946	istype & ?\|?( istype & is, const char fmt[] ) with ( basic_istream_table ) { // match text
[8c13ca8]	947	size_t len = strlen( fmt );
[714e206]	948	char fmtstr[len + 16];
	949	strcpy( fmtstr, fmt ); // copy format and add %n
	950	strcpy( &fmtstr[len], "%n" );
[c015e2d]	951	len = -1;
[04138cc]	952	// scanf cursor does not move if no match, so eof cannot be detected.
[fd5d251]	953	fmt( is, fmtstr, &len ); // can be called with EOF on
	954	if ( ! eof( is ) && len == -1 ) throwResume ExceptionInst( missing_data );
	955	if ( eof( is ) && len == -1 ) throwResume ExceptionInst( end_of_file );
[0f107e4]	956	return is;
	957	} // ?\|?
[04396aa]	958
[3ce0d440]	959	// manipulators
	960	istype & ?\|?( istype & is, istype & (* manip)( istype & ) ) {
	961	return manip( is );
	962	} // ?\|?
[ff7f6d07]	963
[e474cf09]	964	void ?\|?( istype & is, istype & (* manip)( istype & ) ) {
[f842032]	965	manip( is );
[e474cf09]	966	} // ?\|?
[3ce0d440]	967
[ae0c1c3]	968	istype & nl( istype & is ) with ( basic_istream_table ) {
[3c5dee4]	969	fmt( is, "%*[^\n]" ); // ignore characters to newline
[63e129c]	970	if ( ! eof( is ) ) fmt( is, "%*c" ); // read newline
[3ce0d440]	971	return is;
[200fcb3]	972	} // nl
[0efb269]	973
[ae0c1c3]	974	istype & nlOn( istype & is ) with ( basic_istream_table ) {
[0efb269]	975	nlOn( is ); // call void returning
	976	return is;
	977	} // nlOn
	978
[ae0c1c3]	979	istype & nlOff( istype & is ) with ( basic_istream_table ) {
[0efb269]	980	nlOff( is ); // call void returning
	981	return is;
	982	} // nlOff
[ef3ac46]	983	} // distribution
[44574f2]	984
[8d321f9]	985	// ********************************* manipulators *********************************
[3c573e9]	986
[ef3ac46]	987	forall( istype & \| basic_istream( istype ) ) {
[ae0c1c3]	988	istype & ?\|?( istype & is, _Istream_Cskip f ) with ( basic_istream_table ) {
[3ac5fd8]	989	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
[bf1cbde]	990	if ( f.scanset ) {
	991	int nscanset = strlen(f.scanset);
	992	char fmtstr[ sizeof("%*[]") + nscanset ];
	993	int pos = 0;
[e0dc038]	994	strcpy( &fmtstr[pos], "%*[" ); pos += 3;
[bf1cbde]	995	strcpy( &fmtstr[pos], f.scanset ); pos += nscanset;
[e0dc038]	996	strcpy( &fmtstr[pos], "]" );
[714e206]	997	fmt( is, fmtstr, "" ); // skip scanset, zero or more
[e0dc038]	998	} else {
	999	char ch;
	1000	for ( f.wd ) { // skip N characters
[fd5d251]	1001	int args = fmt( is, "%c", &ch ); // can be called with EOF on
[3ac5fd8]	1002	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[e0dc038]	1003	} // for
	1004	} // if
[0f107e4]	1005	return is;
	1006	}
[e7a8f65]	1007
[ae0c1c3]	1008	istype & ?\|?( istype & is, _Istream_Cquote f ) with( basic_istream_table, f.cstr ) {
[3ac5fd8]	1009	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
[8c13ca8]	1010	int args;
[5764204]	1011	fini: {
[714e206]	1012	char rfmt[5] = { ' ', delimiters[0], '%', 'n', '\0' };
	1013	int len = -1; // may not be set in fmt
	1014	args = fmt( is, rfmt, &len ); // remove leading whitespace and quote
	1015	if ( eof( is ) \|\| len == -1 ) break fini;
[5764204]	1016
	1017	// Change the remainder of the read into a getline by reseting the closing delimiter.
	1018	if ( delimiters[1] != '\0' ) {
	1019	delimiters[0] = delimiters[1];
	1020	delimiters[1] = '\0';
[8c13ca8]	1021	} // if
[5764204]	1022	flags.delimiter = true;
	1023	return is \| (_Istream_Cstr )&f;
	1024	} // fini
[baa1d5d]	1025	// read failed => no pattern match => set string to null
	1026	if ( ! flags.ignore && s != 0p && args == 0 ) s[0] = '\0';
[8c13ca8]	1027	if ( args == 1 && eof( is ) ) { // data but scan ended at EOF
[768d091]	1028	clearerr( is ); // => reset EOF => detect again on next read
[8c13ca8]	1029	} // if
	1030	return is;
	1031	}
	1032
[ae0c1c3]	1033	istype & ?\|?( istype & is, _Istream_Cstr f ) with( basic_istream_table, f.cstr ) {
	1034	assert(eof);
[3ac5fd8]	1035	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
[e0dc038]	1036	const char * scanset;
	1037	size_t nscanset = 0;
[4aae2bd]	1038	if ( flags.delimiter ) scanset = delimiters; // getline ?
[5764204]	1039	else scanset = f.cstr.scanset;
[e0dc038]	1040	if ( scanset ) nscanset = strlen( scanset );
[5ad2c6c7]	1041
[e0dc038]	1042	char fmtstr[nscanset + 32]; // storage for scanset and format codes
[e474cf09]	1043	fmtstr[0] = '%';
[e0dc038]	1044	int pos = 1;
	1045	int args;
	1046	bool check = true;
	1047
[5764204]	1048	if ( flags.ignore ) { check = false; fmtstr[1] = '*'; pos += 1; }
	1049	int rwd = wd;
	1050	if ( wd != -1 ) { // => just ignore versus ignore with width
[2fa0237]	1051	// wd is buffer bytes available (for input chars + null terminator)
	1052	// rwd is count of input chars
[e0dc038]	1053	// no maximum width necessary because text ignored => width is read width
[5764204]	1054	if ( flags.rwd ) check = false;
	1055	else rwd = wd - 1;
	1056	assert( rwd > 0 );
[e0dc038]	1057	pos += sprintf( &fmtstr[pos], "%d", rwd );
[e474cf09]	1058	} // if
[2f34fde]	1059
[e0dc038]	1060	if ( ! scanset ) { // %s, %s, %ws, %ws
[5764204]	1061	// fprintf( stderr, "cstr %s\n", s );
[e0dc038]	1062	strcpy( &fmtstr[pos], "s%n" );
	1063	int len = 0; // may not be set in fmt
[5764204]	1064	if ( flags.ignore ) args = fmt( is, fmtstr, &len ); // no string argument for '*'
	1065	else args = fmt( is, fmtstr, s, &len );
[7b93027e]	1066	// fprintf( stderr, "cstr %s %d %d %d\n", fmtstr, args, len, f.cstr.wd );
[737bf73]	1067
	1068	// No data read and eof is on => true eof so raise exception.
	1069	if ( len == 0 && eof( is ) ) throwResume ExceptionInst( end_of_file );
	1070
[e0dc038]	1071	if ( check && len >= rwd && ! eof( is ) ) { // might not fit
[0860d9c]	1072	char peek;
[e0dc038]	1073	fmt( is, "%c", &peek ); // check for whitespace terminator
[8c13ca8]	1074	// fprintf( stderr, "peek %d '%c'\n", args, peek );
[714e206]	1075	if ( ! eof( is ) ) { // can only fail at eof
[a1a1f37d]	1076	ungetc( peek, is );
[8c13ca8]	1077	if ( ! isspace( peek ) ) throwResume ExceptionInst( cstring_length );
[e0dc038]	1078	} // if
[0860d9c]	1079	} // if
[3e4bf0d]	1080	// FIX ME: CFA strings need to be modified to NOT change the argument for this case, then this can be removed.
[7b93027e]	1081	//fprintf( stderr, "cstr %d %d %d %d '%s'\n", flags.ignore, args, len, eof( is ), s );
	1082	//if ( ! flags.ignore && args == 0 ) s[0]= '\0'; // read failed => no pattern match => set string to null
[e0dc038]	1083	} else {
[5764204]	1084	if ( flags.delimiter ) { // getline
[e0dc038]	1085	int len = 0; // may not be set in fmt
[30548de]	1086	if ( delimiters[2] != '\0' ) { // (quote) read single character ?
[baa1d5d]	1087	sprintf( &fmtstr[pos], "c%%n" );
	1088	} else {
	1089	sprintf( &fmtstr[pos], "[^%c]%%n", delimiters[0] );
	1090	} // if
[5764204]	1091	if ( flags.ignore ) args = fmt( is, fmtstr, &len ); // no string argument for '*'
	1092	else args = fmt( is, fmtstr, s, &len );
[714e206]	1093
[737bf73]	1094	// No data read and eof is on => true eof so raise exception.
	1095	if ( len == 0 && eof( is ) ) throwResume ExceptionInst( end_of_file );
	1096
[e0dc038]	1097	if ( check && len == rwd && ! eof( is ) ) { // might not fit
[5764204]	1098	char peek;
	1099	fmt( is, "%c", &peek ); // check for delimiter
[e0dc038]	1100	if ( ! eof( is ) ) {
[5764204]	1101	if ( peek != delimiters[0] ) {
[a1a1f37d]	1102	ungetc( peek, is );
[8c13ca8]	1103	throwResume ExceptionInst( cstring_length );
[e0dc038]	1104	} // if
	1105	} // if
[4aae2bd]	1106	} else fmt( is, "%*c" ); // remove delimiter
[e0dc038]	1107	} else {
	1108	// incl %[xxx], %[xxx], %w[xxx], %w[xxx]
	1109	// excl %[^xxx], %[^xxx], %w[^xxx], %w[^xxx]
[5764204]	1110	sprintf( &fmtstr[pos], "[%s%s]%%n", flags.inex ? "^" : "", scanset );
	1111	// fprintf( stderr, "incl/excl %s %d\n", fmtstr, wd );
[e0dc038]	1112	int len = 0; // may not be set in fmt
[5764204]	1113	if ( flags.ignore ) args = fmt( is, fmtstr, &len ); // no string argument for '*'
	1114	else args = fmt( is, fmtstr, s, &len );
	1115	// fprintf( stderr, "incl/excl %s \"%s\" %d %d %d %d %d %c\n", fmtstr, s, args, wd, len, eof( is ), check, s[wd] );
[737bf73]	1116
	1117	// No data read and eof is on => true eof so raise exception.
	1118	if ( len == 0 && eof( is ) ) throwResume ExceptionInst( end_of_file );
	1119
[e0dc038]	1120	if ( check && len == rwd && ! eof( is ) ) { // might not fit
[8c13ca8]	1121	// fprintf( stderr, "overflow\n" );
[e0dc038]	1122	char peek;
	1123	fmt( is, "%c", &peek ); // check for whitespace terminator
[8c13ca8]	1124	// fprintf( stderr, "peek %d '%c'\n", args, peek );
[e0dc038]	1125	if ( ! eof( is ) ) {
[a1a1f37d]	1126	ungetc( peek, is );
[5764204]	1127	if ( flags.inex ^ strchr( scanset, peek ) != 0p ) throwResume ExceptionInst( cstring_length );
[e0dc038]	1128	} // if
	1129	} // if
[0f107e4]	1130	} // if
[5764204]	1131	if ( ! flags.ignore && args == 0 ) s[0]= '\0'; // read failed => no pattern match => set string to null
[e0dc038]	1132	} // if
	1133	if ( args == 1 && eof( is ) ) { // data but scan ended at EOF
[768d091]	1134	clearerr( is ); // => reset EOF => detect again on next read
[e0dc038]	1135	} // if
[61c7239]	1136	return is;
[e474cf09]	1137	} // ?\|?
	1138	} // distribution
[86a8be5]	1139
[94d2544]	1140	#define INPUT_FMT_IMPL( T, CODE ) \
[ef3ac46]	1141	forall( istype & \| basic_istream( istype ) ) { \
[ae0c1c3]	1142	istype & ?\|?( istype & is, _Istream_Manip(T) f ) with ( basic_istream_table ) { \
[e474cf09]	1143	enum { size = 16 }; \
	1144	char fmtstr[size]; \
	1145	if ( f.wd == -1 ) { \
	1146	snprintf( fmtstr, size, "%%%s%s", f.ignore ? "*" : "", CODE ); \
	1147	} else { \
	1148	snprintf( fmtstr, size, "%%%s%d%s", f.ignore ? "*" : "", f.wd, CODE ); \
	1149	} /* if */ \
	1150	/* printf( "%d %s %p\n", f.wd, fmtstr, &f.val ); */ \
	1151	fmt( is, fmtstr, &f.val ); \
	1152	return is; \
	1153	} /* ?\|? */ \
	1154	} // distribution
[3c573e9]	1155
[baa1d5d]	1156	INPUT_FMT_IMPL( char, "c" )
[94d2544]	1157	INPUT_FMT_IMPL( signed char, "hhi" )
	1158	INPUT_FMT_IMPL( unsigned char, "hhi" )
	1159	INPUT_FMT_IMPL( signed short int, "hi" )
	1160	INPUT_FMT_IMPL( unsigned short int, "hi" )
	1161	INPUT_FMT_IMPL( signed int, "i" )
	1162	INPUT_FMT_IMPL( unsigned int, "i" )
	1163	INPUT_FMT_IMPL( signed long int, "li" )
	1164	INPUT_FMT_IMPL( unsigned long int, "li" )
	1165	INPUT_FMT_IMPL( signed long long int, "lli" )
	1166	INPUT_FMT_IMPL( unsigned long long int, "lli" )
	1167
	1168	INPUT_FMT_IMPL( float, "f" )
	1169	INPUT_FMT_IMPL( double, "lf" )
	1170	INPUT_FMT_IMPL( long double, "Lf" )
[3c573e9]	1171
[ef3ac46]	1172	forall( istype & \| basic_istream( istype ) ) {
[e474cf09]	1173	istype & ?\|?( istype & is, _Istream_Manip(float _Complex) fc ) {
	1174	float re, im;
	1175	_Istream_Manip(float) fmtuc @= { re, fc.wd, fc.ignore };
	1176	is \| fmtuc;
	1177	&fmtuc.val = &im;
	1178	is \| fmtuc;
	1179	if ( ! fc.ignore ) fc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
	1180	return is;
	1181	} // ?\|?
	1182
	1183	istype & ?\|?( istype & is, _Istream_Manip(double _Complex) dc ) {
	1184	double re, im;
	1185	_Istream_Manip(double) fmtuc @= { re, dc.wd, dc.ignore };
	1186	is \| fmtuc;
	1187	&fmtuc.val = &im;
	1188	is \| fmtuc;
	1189	if ( ! dc.ignore ) dc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
	1190	return is;
	1191	} // ?\|?
	1192
	1193	istype & ?\|?( istype & is, _Istream_Manip(long double _Complex) ldc ) {
	1194	long double re, im;
	1195	_Istream_Manip(long double) fmtuc @= { re, ldc.wd, ldc.ignore };
	1196	is \| fmtuc;
	1197	&fmtuc.val = &im;
	1198	is \| fmtuc;
	1199	if ( ! ldc.ignore ) ldc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
	1200	return is;
	1201	} // ?\|?
	1202	} // distribution
[3c573e9]	1203
[0528d79]	1204	// ********************************* enumerations *********************************
[2f34fde]	1205
[eae8b37]	1206	forall( istype & \| istream( istype ), E \| CfaEnum( E ) \| Serial( E ) )
[ae0c1c3]	1207	istype & ?\|?( istype & is, E & e ) with ( basic_istream_table ) {
[eae8b37]	1208	// Match longest input enumerator string to enumerator labels, where enumerator names are unique.
[0528d79]	1209	size_t N = countof( E ), lnths[N], maxlen = 0; // N must be > 0, maxlen must be > 0
	1210
	1211	size_t ec = 0;
	1212	for ( s; E ) { // gather label lengths
	1213	lnths[ec] = strlen( label( s ) );
	1214	if ( lnths[ec] > maxlen ) maxlen = lnths[ec]; // gather longest length
	1215	// printf( "%s %zd\n", label( s ), lnths[e] );
	1216	ec += 1;
[eae8b37]	1217	} // for
[0528d79]	1218	// printf( "maxlen %d\n", maxlen );
[eae8b37]	1219
[04138cc]	1220	fmt( is, " " ); // remove leading whitespace
[0528d79]	1221	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
	1222	// printf( "after whitespace\n" );
	1223
	1224	char ch;
	1225	ssize_t exact = -1; // -1 => no exact match seen so far
	1226
	1227	for ( c; maxlen ) { // scan columns of the label matrix (some columns missing)
	1228	fmt( is, "%c", &ch ); // read character => get a character or EOF
	1229	// printf( "after fmt %d %d '%c'\n", c, args, ch );
	1230	if ( eof( is ) \|\| isspace( ch ) != 0 ) { // enumerator delimiter ? => end of enumerator
	1231	// printf( "match eof %zd %s\n", exact, label( fromInt( exact ) ) );
	1232	if ( exact != -1 ) { // exact match available ?
	1233	e = fromInt( exact );
	1234	return is;
	1235	} // if
	1236	// printf( "no match\n" );
	1237	// consume input character(s) as garbage
[768d091]	1238	clearerr( is ); // => read something => reset EOF => detect again on next read
[0528d79]	1239	throwResume ExceptionInst( missing_data ); // no matching enumerator
[eae8b37]	1240	} // if
	1241
[0528d79]	1242	bool match = false;
	1243	for ( r; N ) { // scan all enumeration labels for matching character
	1244	// if ( lnths[r] > c ) printf( "%d %d %d %c %s %c\n", c, r, lnths[r], ch, label( fromInt( r ) ), label( fromInt( r ) )[c] );
	1245	if ( lnths[r] > c && label( fromInt( r ) )[c] == ch ) { // label long enough and matching character ?
	1246	// printf( "match char\n" );
	1247	match = true;
	1248	if ( lnths[r] - 1 == c ) exact = r; // exact match ?
	1249	else if ( exact != -1 && lnths[exact] <= c ) exact = -1; // previous exact match too short ?
	1250	} else {
	1251	lnths[r] = 0; // mark enumerator ineligible
[eae8b37]	1252	} // if
[0528d79]	1253	} // for
	1254	// printf( "match %d\n", match );
	1255	if ( ! match ) { // no matching character in column
	1256	if ( exact != -1 ) { // exact match available ?
	1257	// printf( "match %zd unget %c\n", exact, ch );
	1258	ungetc( ch, is ); // push back last unmatching character
	1259	e = fromInt( exact );
	1260	return is;
	1261	} // if
	1262	// consume input character(s) as garbage
	1263	throwResume ExceptionInst( missing_data ); // no match found
[eae8b37]	1264	} // if
[0528d79]	1265	//printf( "loop match %d\n", match );
	1266	} // for
	1267	// printf( "loop end\n" );
	1268	e = fromInt( exact );
[eae8b37]	1269	return is;
	1270	}
[0528d79]	1271
[eae8b37]	1272	forall( ostype & \| ostream( ostype ), E \| CfaEnum( E ) ) {
	1273	ostype & ?\|?( ostype & os, E e ) {
	1274	return os \| label( e );
	1275	}
	1276	OSTYPE_VOID_IMPL( os, E )
	1277	}
	1278
[86bd7c1f]	1279	// Local Variables: //
	1280	// tab-width: 4 //
[084520f]	1281	// compile-command: "cfa iostream.cfa" //
[86bd7c1f]	1282	// End: //

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