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iostream.cfa@ 15a0f6f

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Last change on this file since 15a0f6f was 15a0f6f, checked in by Peter A. Buhr <pabuhr@…>, 5 days ago
fix problem with printing 0 for largest int_128 values
Property mode set to `100644`
File size: 50.5 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
[15a0f6f]	12	// Last Modified On : Sat Jul 4 14:54:12 2026
	13	// Update Count : 2317
[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$( os ) );
[0c51f9ad]	123	fmt( os, "%'llu", ulli );
[3ce0d440]	124	return os;
	125	} // ?\|?
[b12e4ad]	126	OSTYPE_VOID_IMPL( os, unsigned long long int )
[3ce0d440]	127
[ef3ac46]	128	#if defined( __SIZEOF_INT128__ )
[bd5b443]	129	// UINT64_MAX 18_446_744_073_709_551_615_ULL
	130	#define P10_UINT64 10_000_000_000_000_000_000_ULL // 19 zeroes
	131
[ae0c1c3]	132	static inline void base10_128( ostype & os, unsigned int128 val ) with ( basic_ostream_table ) {
[15a0f6f]	133	// if ( val > P10_UINT64 ) {
	134	if ( (uint64_t)(val >> 64) != 0 \|\| (uint64_t)val > P10_UINT64 ) { // FIX ME: -O3 bug
	135	base10_128( os, val / P10_UINT64 ); // RECURSIVE
[bd5b443]	136	fmt( os, "%.19lu", (uint64_t)(val % P10_UINT64) );
	137	} else {
	138	fmt( os, "%lu", (uint64_t)val );
	139	} // if
	140	} // base10_128
	141
[ae0c1c3]	142	static inline void base10_128( ostype & os, int128 val ) with ( basic_ostream_table ) {
[bd5b443]	143	if ( val < 0 ) {
	144	fmt( os, "-" ); // leading negative sign
	145	val = -val;
	146	} // if
	147	base10_128( os, (unsigned int128)val ); // print zero/positive value
	148	} // base10_128
	149
[ae0c1c3]	150	ostype & ?\|?( ostype & os, int128 llli ) with ( basic_ostream_table ) {
[6c5d92f]	151	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[bd5b443]	152	base10_128( os, llli );
	153	return os;
	154	} // ?\|?
[b12e4ad]	155	OSTYPE_VOID_IMPL( os, int128 )
[bd5b443]	156
[ae0c1c3]	157	ostype & ?\|?( ostype & os, unsigned int128 ullli ) with ( basic_ostream_table ) {
[6c5d92f]	158	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[bd5b443]	159	base10_128( os, ullli );
	160	return os;
	161	} // ?\|?
[b12e4ad]	162	OSTYPE_VOID_IMPL( os, unsigned int128 )
[ef3ac46]	163	#endif // __SIZEOF_INT128__
[bd5b443]	164
[94d2544]	165	#define PRINT_WITH_DP( os, format, val, ... ) \
[e63326b]	166	{ \
	167	enum { size = 48 }; \
	168	char buf[size]; \
	169	int len = snprintf( buf, size, format, ##__VA_ARGS__, val ); \
	170	fmt( os, "%s", buf ); \
[fd4c009]	171	if ( isfinite( val ) ) { /* if number, print decimal point when no fraction or exponent */ \
[f6a4917]	172	for ( i; 0 ~ @ ) { \
[e63326b]	173	if ( i == len ) { fmt( os, "." ); break; } \
[09a767e]	174	if ( buf[i] == '.' \|\| buf[i] == 'e' \|\| buf[i] == 'E' \|\| \
	175	buf[i] == 'p' \|\| buf[i] == 'P' ) break; /* decimal point or scientific ? */ \
[e63326b]	176	} /* for */ \
	177	} /* if */ \
	178	}
[b2ac656]	179
[ae0c1c3]	180	ostype & ?\|?( ostype & os, float f ) with ( basic_ostream_table ) {
[6c5d92f]	181	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[94d2544]	182	PRINT_WITH_DP( os, "%'g", f );
[3ce0d440]	183	return os;
	184	} // ?\|?
[b12e4ad]	185	OSTYPE_VOID_IMPL( os, float )
[3ce0d440]	186
[ae0c1c3]	187	ostype & ?\|?( ostype & os, double d ) with ( basic_ostream_table ) {
[6c5d92f]	188	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[94d2544]	189	PRINT_WITH_DP( os, "%'.*lg", d, DBL_DIG );
[3ce0d440]	190	return os;
	191	} // ?\|?
[b12e4ad]	192	OSTYPE_VOID_IMPL( os, double )
[3ce0d440]	193
[ae0c1c3]	194	ostype & ?\|?( ostype & os, long double ld ) with ( basic_ostream_table ) {
[6c5d92f]	195	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[94d2544]	196	PRINT_WITH_DP( os, "%'.*Lg", ld, LDBL_DIG );
[3ce0d440]	197	return os;
	198	} // ?\|?
[b12e4ad]	199	OSTYPE_VOID_IMPL( os, long double )
[3ce0d440]	200
[ae0c1c3]	201	ostype & ?\|?( ostype & os, float _Complex fc ) with ( basic_ostream_table ) {
[6c5d92f]	202	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[94d2544]	203	PRINT_WITH_DP( os, "%'g", crealf( fc ) );
	204	PRINT_WITH_DP( os, "%'+g", cimagf( fc ) );
[3c5dee4]	205	fmt( os, "i" );
[3ce0d440]	206	return os;
	207	} // ?\|?
[b12e4ad]	208	OSTYPE_VOID_IMPL( os, float _Complex )
[3ce0d440]	209
[ae0c1c3]	210	ostype & ?\|?( ostype & os, double _Complex dc ) with ( basic_ostream_table ) {
[6c5d92f]	211	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[b2ac656]	212	// os \| creal( dc ) \| nonl;
[94d2544]	213	PRINT_WITH_DP( os, "%'.*lg", creal( dc ), DBL_DIG );
	214	PRINT_WITH_DP( os, "%'+.*lg", cimag( dc ), DBL_DIG );
[3c5dee4]	215	fmt( os, "i" );
[3ce0d440]	216	return os;
	217	} // ?\|?
[b12e4ad]	218	OSTYPE_VOID_IMPL( os, double _Complex )
[3ce0d440]	219
[ae0c1c3]	220	ostype & ?\|?( ostype & os, long double _Complex ldc ) with ( basic_ostream_table ) {
[6c5d92f]	221	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[b2ac656]	222	// os \| creall( ldc ) \|\| nonl;
[94d2544]	223	PRINT_WITH_DP( os, "%'.*Lg", creall( ldc ), LDBL_DIG );
	224	PRINT_WITH_DP( os, "%'+.*Lg", cimagl( ldc ), LDBL_DIG );
[3c5dee4]	225	fmt( os, "i" );
[3ce0d440]	226	return os;
	227	} // ?\|?
[b12e4ad]	228	OSTYPE_VOID_IMPL( os, long double _Complex )
[3ce0d440]	229
[ae0c1c3]	230	ostype & ?\|?( ostype & os, const char s[] ) with ( basic_ostream_table ) {
[3ce0d440]	231	enum { Open = 1, Close, OpenClose };
[28c2933d]	232	static const unsigned char mask[256] @= { // 256 covers all Latin-1 characters
[3ce0d440]	233	// opening delimiters, no space after
[1a7203d]	234	['('] = Open, ['['] = Open, ['{'] = Open,
	235	['='] = Open, ['$'] = Open, [(unsigned char)'£'] = Open, [(unsigned char)'¥'] = Open,
	236	[(unsigned char)'¡'] = Open, [(unsigned char)'¿'] = Open, [(unsigned char)'«'] = Open,
[3ce0d440]	237	// closing delimiters, no space before
[1a7203d]	238	[','] = Close, ['.'] = Close, [';'] = Close, ['!'] = Close, ['?'] = Close,
	239	['%'] = Close, [(unsigned char)'¢'] = Close, [(unsigned char)'»'] = Close,
	240	[')'] = Close, [']'] = Close, ['}'] = Close,
[3ce0d440]	241	// opening-closing delimiters, no space before or after
[1a7203d]	242	['\''] = OpenClose, ['`'] = OpenClose, ['"'] = OpenClose, [':'] = OpenClose,
	243	[' '] = OpenClose, ['\f'] = OpenClose, ['\n'] = OpenClose, ['\r'] = OpenClose, ['\t'] = OpenClose, ['\v'] = OpenClose, // isspace
[3ce0d440]	244	}; // mask
	245
[6a33e40]	246	if ( s == 0p ) { fmt( os, "%s", "0p" ); return os; } // null pointer
[f5d9c37]	247	if ( s[0] == '\0' ) { nosep( os ); return os; } // null string => no leading/trailing separator
[3ce0d440]	248
	249	// first character IS NOT spacing or closing punctuation => add left separator
[e474cf09]	250	unsigned char ch = s[0]; // must make unsigned
[6c5d92f]	251	if ( sepPrt$( os ) && mask[ ch ] != Close && mask[ ch ] != OpenClose ) {
	252	fmt( os, "%s", sepGetCur$( os ) );
[3ce0d440]	253	} // if
	254
	255	// if string starts line, must reset to determine open state because separator is off
[6c5d92f]	256	sepReset$( os ); // reset separator
[3ce0d440]	257
	258	// last character IS spacing or opening punctuation => turn off separator for next item
[85d8153]	259	int len = strlen( s );
[e474cf09]	260	ch = s[len - 1]; // must make unsigned
[85d8153]	261	fmt( os, "%s", s ); // fmt resets seperator, but reset it again
[6c5d92f]	262	if ( sepPrt$( os ) && mask[ ch ] != Open && mask[ ch ] != OpenClose ) {
[f5d9c37]	263	sep( os );
[3ce0d440]	264	} else {
[f5d9c37]	265	nosep( os );
[3ce0d440]	266	} // if
[6c5d92f]	267	if ( ch == '\n' ) setNL$( os, true ); // check AFTER sepPrt$ call above as it resets NL flag
[85d8153]	268	return os;
[3ce0d440]	269	} // ?\|?
[b12e4ad]	270	OSTYPE_VOID_IMPL( os, const char * )
[3ce0d440]	271
[e7a8f65]	272	// ostype & ?\|?( ostype & os, const char16_t s[] ) {
[6c5d92f]	273	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[e474cf09]	274	// fmt( os, "%ls", s );
[3ce0d440]	275	// return os;
	276	// } // ?\|?
[d3b7937]	277
[3ce0d440]	278	// #if ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 ) // char32_t == wchar_t => ambiguous
[e7a8f65]	279	// ostype & ?\|?( ostype & os, const char32_t s[] ) {
[6c5d92f]	280	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[e474cf09]	281	// fmt( os, "%ls", s );
[3ce0d440]	282	// return os;
	283	// } // ?\|?
	284	// #endif // ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 )
[d3b7937]	285
[e7a8f65]	286	// ostype & ?\|?( ostype & os, const wchar_t s[] ) {
[6c5d92f]	287	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[e474cf09]	288	// fmt( os, "%ls", s );
[3ce0d440]	289	// return os;
	290	// } // ?\|?
	291
[ae0c1c3]	292	ostype & ?\|?( ostype & os, const void * p ) with ( basic_ostream_table ) {
[6c5d92f]	293	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[3ce0d440]	294	fmt( os, "%p", p );
	295	return os;
	296	} // ?\|?
[b12e4ad]	297	OSTYPE_VOID_IMPL( os, const void * )
[3ce0d440]	298
	299	// manipulators
	300	ostype & ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) {
[e474cf09]	301	return manip( os );
[200fcb3]	302	} // ?\|?
[ae0c1c3]	303	void ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) with ( basic_ostream_table ) {
[e474cf09]	304	manip( os );
[6c5d92f]	305	if ( getPrt$( os ) ) ends( os ); // something printed ?
	306	setPrt$( os, false ); // turn off
[3ce0d440]	307	} // ?\|?
	308
[ae0c1c3]	309	ostype & nl( ostype & os ) with ( basic_ostream_table ) {
[9d362a0]	310	(ostype &)(os \| '\n');
[6c5d92f]	311	setPrt$( os, false ); // turn off
	312	setNL$( os, true );
[f5d9c37]	313	return nosep( os ); // prepare for next line
[200fcb3]	314	} // nl
	315
[ae0c1c3]	316	ostype & nonl( ostype & os ) with ( basic_ostream_table ) {
[6c5d92f]	317	setPrt$( os, false ); // turn off
[3ce0d440]	318	return os;
[200fcb3]	319	} // nonl
[3ce0d440]	320
[ae0c1c3]	321	ostype & nlOn( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	322	nlOn( os ); // call void returning
[3ce0d440]	323	return os;
[f5d9c37]	324	} // nlOn
[3ce0d440]	325
[ae0c1c3]	326	ostype & nlOff( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	327	nlOff( os ); // call void returning
[3ce0d440]	328	return os;
[f5d9c37]	329	} // nlOff
[6de9f4a]	330
[ae0c1c3]	331	ostype & sepVal( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	332	return (ostype &)(os \| sepGet( os ));
	333	} // sepVal
	334
[ae0c1c3]	335	ostype & sepTupleVal( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	336	return os \| sepGetTuple( os );
	337	} // sepTupleVal
	338
[ae0c1c3]	339	ostype & sep( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	340	sep( os ); // call void returning
[3ce0d440]	341	return os;
[f5d9c37]	342	} // sep
[b6dc097]	343
[ae0c1c3]	344	ostype & nosep( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	345	nosep( os ); // call void returning
[3ce0d440]	346	return os;
[f5d9c37]	347	} // nosep
[cf16f94]	348
[ae0c1c3]	349	ostype & sepOn( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	350	sepOn( os ); // call void returning
[200fcb3]	351	return os;
[f5d9c37]	352	} // sepOn
[200fcb3]	353
[ae0c1c3]	354	ostype & sepOff( ostype & os ) with ( basic_ostream_table ) {
[f5d9c37]	355	sepOff( os ); // call void returning
[200fcb3]	356	return os;
[f5d9c37]	357	} // sepOff
[85d8153]	358	} // distribution
[e474cf09]	359
[c443d1d]	360	// tuples
[fd54fef]	361	forall( ostype &, T, Params... \| writeable( T, ostype ) \| { ostype & ?\|?( ostype &, Params ); } ) {
[ae0c1c3]	362	ostype & ?\|?( ostype & os, T arg, Params rest ) with ( basic_ostream_table ) {
[9d362a0]	363	(ostype &)(os \| arg); // print first argument
[6c5d92f]	364	sepSetCur$( os, sepGetTuple( os ) ); // switch to tuple separator
[9d362a0]	365	(ostype &)(os \| rest); // print remaining arguments
[6c5d92f]	366	sepSetCur$( os, sepGet( os ) ); // switch to regular separator
[200fcb3]	367	return os;
	368	} // ?\|?
[ae0c1c3]	369	void ?\|?( ostype & os, T arg, Params rest ) with ( basic_ostream_table ) {
[65240bb]	370	// (ostype &)(?\|?( os, arg, rest )); ends( os );
[9d362a0]	371	(ostype &)(os \| arg); // print first argument
[6c5d92f]	372	sepSetCur$( os, sepGetTuple( os ) ); // switch to tuple separator
[9d362a0]	373	(ostype &)(os \| rest); // print remaining arguments
[6c5d92f]	374	sepSetCur$( os, sepGet( os ) ); // switch to regular separator
[65240bb]	375	ends( os );
[200fcb3]	376	} // ?\|?
	377	} // distribution
[c443d1d]	378
[61c7239]	379	// writes the range [begin, end) to the given stream
[fd54fef]	380	forall( ostype &, elt_type \| writeable( elt_type, ostype ), iterator_type \| iterator( iterator_type, elt_type ) ) {
[61c7239]	381	void write( iterator_type begin, iterator_type end, ostype & os ) {
	382	void print( elt_type i ) { os \| i; }
	383	for_each( begin, end, print );
	384	} // ?\|?
	385
	386	void write_reverse( iterator_type begin, iterator_type end, ostype & os ) {
	387	void print( elt_type i ) { os \| i; }
	388	for_each_reverse( begin, end, print );
	389	} // ?\|?
	390	} // distribution
	391
[8d321f9]	392	// ********************************* manipulators *********************************
[3c573e9]	393
[8d321f9]	394	// ********************************* integral *********************************
[3c573e9]	395
	396	static const char * shortbin[] = { "0", "1", "10", "11", "100", "101", "110", "111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
	397	static const char * longbin[] = { "0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
	398
	399	// Default prefix for non-decimal prints is 0b, 0, 0x.
[94d2544]	400	#define INTEGRAL_FMT_IMPL( T, IFMTNP, IFMTP ) \
[85d8153]	401	forall( ostype & \| basic_ostream( ostype ) ) { \
[ae0c1c3]	402	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) with ( basic_ostream_table ) { \
[6c5d92f]	403	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) ); \
[3c573e9]	404	\
	405	if ( f.base == 'b' \|\| f.base == 'B' ) { /* bespoke binary format */ \
[7fd71c7]	406	int bits = high1( f.val ); /* position of most significant bit */ \
	407	if ( bits == 0 ) bits = 1; /* 0 value => force one bit to print */ \
[c7978c0]	408	int spaces; \
[3c573e9]	409	if ( ! f.flags.left ) { /* right justified ? */ \
	410	/* Note, base prefix then zero padding or spacing then prefix. */ \
[c7978c0]	411	if ( f.flags.pc ) { \
	412	spaces = f.wd - f.pc; \
	413	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
	414	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
[3c573e9]	415	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
[c7978c0]	416	spaces = f.pc - bits; \
[3c573e9]	417	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
	418	} else { \
[c7978c0]	419	spaces = f.wd - bits; \
	420	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
	421	if ( f.flags.pad0 ) { \
	422	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
	423	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
	424	} else { \
	425	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
	426	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
	427	} /* if */ \
	428	} /* if */ \
	429	} else { \
	430	if ( ! f.flags.nobsdp ) fmt( os, "0%c", f.base ); \
	431	if ( f.flags.pc ) { \
	432	spaces = f.pc - bits; \
	433	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
	434	spaces = f.wd - f.pc; \
	435	} else { /* pad0 flag ignored with left flag */ \
	436	spaces = f.wd - bits; \
[3c573e9]	437	} /* if */ \
[c7978c0]	438	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
[3c573e9]	439	} /* if */ \
[fd4d3017]	440	int shift = floor( bits - 1, 4 ); \
[3c573e9]	441	typeof( f.val ) temp = f.val; \
	442	fmt( os, "%s", shortbin[(temp >> shift) & 0xf] ); \
	443	for () { \
	444	shift -= 4; \
	445	if ( shift < 0 ) break; \
	446	temp = f.val; \
	447	fmt( os, "%s", longbin[(temp >> shift) & 0xf] ); \
	448	} /* for */ \
	449	if ( f.flags.left && spaces > 0 ) fmt( os, "%*s", spaces, " " ); \
	450	return os; \
[2c60c644]	451	} /* if */ \
[3c573e9]	452	\
	453	char fmtstr[sizeof(IFMTP)]; /* sizeof includes '\0' */ \
	454	if ( ! f.flags.pc ) memcpy( &fmtstr, IFMTNP, sizeof(IFMTNP) ); \
	455	else memcpy( &fmtstr, IFMTP, sizeof(IFMTP) ); \
[0c51f9ad]	456	int star = 5; /* position before first '' / \
[3c573e9]	457	\
	458	/* Insert flags into spaces before '', from right to left. / \
	459	if ( ! f.flags.nobsdp ) { fmtstr[star] = '#'; star -= 1; } \
	460	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
[2c60c644]	461	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
[3c573e9]	462	if ( f.flags.pad0 && ! f.flags.pc ) { fmtstr[star] = '0'; star -= 1; } \
[0c51f9ad]	463	fmtstr[star] = '\''; star -= 1; /* locale */ \
[3c573e9]	464	fmtstr[star] = '%'; \
[09a767e]	465	\
	466	/* Special case printing 0 in hexadecimal as printf does not put the base. */ \
	467	if ( (f.base == 'x' \| f.base == 'X') && ! f.flags.nobsdp && f.val == 0 ) { \
	468	fmt( os, f.base == 'x' ? "0x" : "0X" ); \
	469	f.wd -= 2; \
	470	if ( f.wd < 0 ) f.wd = 1; \
	471	} /* if */ \
[3c573e9]	472	\
	473	if ( ! f.flags.pc ) { /* no precision */ \
	474	fmtstr[sizeof(IFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
[2c60c644]	475	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
[3c573e9]	476	fmt( os, &fmtstr[star], f.wd, f.val ); \
	477	} else { /* precision */ \
	478	fmtstr[sizeof(IFMTP)-2] = f.base; /* sizeof includes '\0' */ \
[2c60c644]	479	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
[3c573e9]	480	fmt( os, &fmtstr[star], f.wd, f.pc, f.val ); \
	481	} /* if */ \
	482	return os; \
	483	} /* ?\|? */ \
[b12e4ad]	484	OSTYPE_VOID_IMPL( os, _Ostream_Manip(T) ) \
[3c573e9]	485	} // distribution
	486
[94d2544]	487	INTEGRAL_FMT_IMPL( signed char, " hh ", " .*hh " )
	488	INTEGRAL_FMT_IMPL( unsigned char, " hh ", " .*hh " )
	489	INTEGRAL_FMT_IMPL( signed short int, " h ", " .*h " )
	490	INTEGRAL_FMT_IMPL( unsigned short int, " h ", " .*h " )
	491	INTEGRAL_FMT_IMPL( signed int, " * ", " . " )
	492	INTEGRAL_FMT_IMPL( unsigned int, " * ", " . " )
	493	INTEGRAL_FMT_IMPL( signed long int, " l ", " .*l " )
	494	INTEGRAL_FMT_IMPL( unsigned long int, " l ", " .*l " )
	495	INTEGRAL_FMT_IMPL( signed long long int, " ll ", " .*ll " )
	496	INTEGRAL_FMT_IMPL( unsigned long long int, " ll ", " .*ll " )
[bd5b443]	497
[2c60c644]	498
	499	#if defined( __SIZEOF_INT128__ )
	500	// Default prefix for non-decimal prints is 0b, 0, 0x.
[85d8153]	501	forall( ostype & \| basic_ostream( ostype ) )
[2c60c644]	502	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 ) {
	503	int wd = 1; // f.wd is never 0 because 0 implies left-pad
	504	if ( val > power ) { // subdivide value into printable 64-bit values
	505	base_128( os, val / power, power, f, maxdig, bits, cnt + 1 ); // recursive
	506	f.val = val % power;
[ac9ba12]	507	if ( cnt == 1 && f.flags.left ) { wd = f.wd; f.wd = maxdig; } // copy f.wd and reset for printing middle chunk
[7d9bbef]	508	// 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]	509	// 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]	510	(ostype &)(os \| f);
	511	if ( cnt == 1 ) {
[ac9ba12]	512	if ( f.flags.left ) { wd -= maxdig; f.wd = wd < 0 ? 1 : wd; } // update and restore f.wd for printing end chunk
[f5d9c37]	513	nosep( os ); // no seperator between chunks
[2c60c644]	514	} // if
[ac9ba12]	515	} else { // print start chunk
[2c60c644]	516	f.val = val;
	517	// f.pc is unsigned => use wd
	518	if ( f.flags.pc && f.pc > maxdig * cnt ) { wd = f.pc - maxdig * cnt; f.pc = wd < 0 ? 0 : wd; }
	519	else { f.flags.pc = false; f.pc = 0; }
	520
	521	if ( ! f.flags.left ) { // right justify
	522	wd = f.wd - maxdig * cnt;
	523	f.wd = wd < 0 ? 1 : wd;
	524	wd = maxdig;
	525	} else { // left justify
	526	if ( cnt != 0 ) { // value >= 2^64 ?
	527	unsigned int dig, bs = 0;
[ac9ba12]	528	// compute size of prefix digits and base
[2c60c644]	529	if ( f.base == 'd' \|\| f.base == 'u' ) { // no base prefix
	530	dig = ceil( log10( f.val ) ); // use floating-point
	531	if ( f.base == 'd' && (f.flags.neg \|\| f.flags.sign) ) bs = 1; // sign ?
	532	} else {
[53fd995]	533	dig = ceiling_div( high1( f.val ), bits );
[2c60c644]	534	if ( ! f.flags.nobsdp ) { // base prefix ?
	535	if ( f.base == 'o' ) {
	536	// 0 prefix for octal is not added for precision with leading zero
	537	if ( f.pc <= dig ) bs = 1; // 1 character prefix
	538	} else bs = 2; // 2 character prefix
	539	} // if
	540	} // if
	541	wd = f.wd - (f.pc > dig ? f.pc : dig) - bs; // precision > leading digits ?
	542	if ( wd < 0 ) wd = 1;
	543	f.wd = 1;
	544	} // if
	545	// all manipulators handled implicitly for value < 2^64
	546	} // if
	547	// prior checks ensure wd not negative
	548
	549	if ( f.flags.neg ) f.val = -f.val;
[7d9bbef]	550	// 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]	551	// 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]	552	(ostype &)(os \| f);
	553
[ac9ba12]	554	// remaining middle and end chunks are padded with 0s on the left
[2c60c644]	555	if ( ! f.flags.left ) { f.flags.pad0 = true; f.flags.pc = false; } // left pad with 0s
	556	else { f.pc = maxdig; f.flags.pc = true; } // left pad with precision
[ac9ba12]	557
[f5d9c37]	558	if ( cnt != 0 ) nosep( os ); // no seperator between chunks
[ac9ba12]	559	f.wd = wd; // reset f.wd for next chunk
	560	f.flags.sign = false; // no leading +/- sign
	561	f.flags.nobsdp = true; // no leading base prefix
[2c60c644]	562	} // if
	563	} // base_128
	564
[94d2544]	565	#define INTEGRAL_FMT_IMPL128( T ) \
[85d8153]	566	forall( ostype & \| basic_ostream( ostype ) ) { \
[2c60c644]	567	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
	568	_Ostream_Manip(uint64_t) fmt; \
	569	fmt.[wd, pc, base, all] = f.[wd, pc, base, all]; \
	570	if ( f.base == 'b' \| f.base == 'B' ) { \
	571	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 64, 1 ); \
	572	} else if ( f.base == 'o' ) { \
	573	base_128( os, f.val, (unsigned int128)1 << 63, fmt, 21, 3 ); \
	574	} else if ( f.base == 'd' \|\| f.base == 'u' ) { \
	575	if ( f.base == 'd' && f.val < 0 ) { f.val = -f.val; fmt.flags.neg = true; } \
	576	base_128( os, f.val, (unsigned int128)10_000_000_000_000_000_000UL, fmt, 19, 0 ); \
	577	} else { \
	578	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 16, 4 ); \
	579	} /* if */ \
	580	return os; \
	581	} /* ?\|? */ \
[b12e4ad]	582	OSTYPE_VOID_IMPL( os, _Ostream_Manip(T) ) \
[2c60c644]	583	} // distribution
	584
[94d2544]	585	INTEGRAL_FMT_IMPL128( int128 )
	586	INTEGRAL_FMT_IMPL128( unsigned int128 )
[2c60c644]	587	#endif // __SIZEOF_INT128__
[bd5b443]	588
[8d321f9]	589	// ********************************* floating point *********************************
[3c573e9]	590
[fd4c009]	591	static const char *suffixes[] = {
	592	"y", "z", "a", "f", "p", "n", "u", "m", "",
	593	"K", "M", "G", "T", "P", "E", "Z", "Y"
[737bf73]	594	};
[fd4c009]	595	#define SUFFIXES_START (-24) /* Smallest power for which there is a suffix defined. */
	596	#define SUFFIXES_END (SUFFIXES_START + (int)((sizeof(suffixes) / sizeof(char ) - 1) 3))
	597
[244335b]	598	// Float-point numbers without a fraction are always printed with a decimal point to reflect the constant type.
	599	// Programmers must explicitly disable printing the decimal point for values with no fraction using manipulator nodp.
	600	// printf supports printing the decimal point using flag #. However specifier g is broken with #.
	601	//
	602	// printf( "%g %#g %g %#g\n", 4., 4., 4.5, 4.5 );
	603	// 4 4.00000 4.5 4.50000
	604	//
	605	// when # is specified, g incorrectly prints 6 significant digits. As a result, # cannot be used to force printing of
	606	// the decimal point. Instead, any missing decimal point is manually added.
	607
[94d2544]	608	#define PRINT_WITH_DP2( os, format, ... ) \
[3c573e9]	609	{ \
[fd4c009]	610	if ( ! f.flags.eng ) { \
	611	len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
[bcbc7e4]	612	if ( isfinite( f.val ) && ! f.flags.nobsdp ) { /* if number, print decimal point when no fraction or exponent */ \
[09a767e]	613	for ( i = 0; i < len && buf[i] != '.' && buf[i] != 'e' && buf[i] != 'E' && \
[244335b]	614	buf[i] != 'p' && buf[i] != 'P'; i += 1 ); /* decimal point or scientific ? */ \
[fd4c009]	615	if ( i == len ) { \
	616	if ( ! f.flags.left ) { \
	617	buf[i] = '.'; buf[i + 1] = '\0'; \
	618	if ( buf[0] == ' ' ) bufbeg = 1; /* decimal point within width */ \
	619	} else { \
	620	for ( i = 0; i < len && buf[i] != ' '; i += 1 ); /* trailing blank ? */ \
	621	buf[i] = '.'; \
	622	if ( i == len ) buf[i + 1] = '\0'; \
	623	} /* if */ \
[3c573e9]	624	} /* if */ \
	625	} /* if */ \
[fd4c009]	626	} else { \
	627	int exp10, len2; \
[244335b]	628	eng( f.val, f.pc, exp10 ); /* changes arguments */ \
[b1e614f4]	629	/* printf( "%g %d %d %d %s\n", f.val, f.wd, f.pc, exp10, format ); */ \
[fd4c009]	630	if ( ! f.flags.left && f.wd > 1 ) { \
[b1e614f4]	631	/* Exponent size: 'e', optional minus sign, number of digits: log10(0) => undefined */ \
	632	f.wd -= 1 + (exp10 < 0 ? 1 : 0) + lrint( floor( exp10 == 0 ? 0 : log10( abs( exp10 ) ) ) ) + 1; \
[fd4c009]	633	if ( f.wd < 1 ) f.wd = 1; \
	634	} /* if */ \
	635	len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
	636	if ( f.flags.left ) { \
	637	for ( len -= 1; len > 0 && buf[len] == ' '; len -= 1 ); \
	638	len += 1; \
	639	} /* if */ \
	640	if ( ! f.flags.nobsdp \|\| (exp10 < SUFFIXES_START) \|\| (exp10 > SUFFIXES_END) ) { \
[fb907d3]	641	len2 = snprintf( &buf[len], size - len, "e%d", (int)exp10 /* ambiguity with function exp10 */ ); \
[fd4c009]	642	} else { \
	643	len2 = snprintf( &buf[len], size - len, "%s", suffixes[(exp10 - SUFFIXES_START) / 3] ); \
	644	} /* if */ \
	645	if ( f.flags.left && len + len2 < f.wd ) buf[len + len2] = ' '; \
[3c573e9]	646	} /* if */ \
	647	fmt( os, "%s", &buf[bufbeg] ); \
	648	}
	649
[94d2544]	650	#define FLOATING_POINT_FMT_IMPL( T, DFMTNP, DFMTP ) \
[85d8153]	651	forall( ostype & \| basic_ostream( ostype ) ) { \
[b19b362]	652	static void eng( T & value, int & pc, int & exp10 ) { \
[fd4c009]	653	exp10 = lrint( floor( log10( abs( value ) ) ) ); /* round to desired precision */ \
	654	if ( exp10 < 0 ) exp10 -= 2; \
	655	exp10 = floor( exp10, 3 ); \
	656	value *= pow( 10.0, -exp10 ); \
[0d49efb]	657	if ( pc < 0 ) pc = 3; \
[fd4c009]	658	} /* eng */ \
	659	\
[ae0c1c3]	660	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) with ( basic_ostream_table ) { \
[fd4c009]	661	enum { size = 48 }; \
	662	char buf[size]; \
	663	int bufbeg = 0, i, len; \
	664	\
[6c5d92f]	665	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) ); \
[244335b]	666	char fmtstr[sizeof(DFMTP) + 8]; /* sizeof includes '\0' */ \
[3c573e9]	667	if ( ! f.flags.pc ) memcpy( &fmtstr, DFMTNP, sizeof(DFMTNP) ); \
	668	else memcpy( &fmtstr, DFMTP, sizeof(DFMTP) ); \
[244335b]	669	int star = 5; /* position before first '' / \
[3c573e9]	670	\
	671	/* Insert flags into spaces before '', from right to left. / \
	672	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
	673	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
	674	if ( f.flags.pad0 ) { fmtstr[star] = '0'; star -= 1; } \
[244335b]	675	if ( f.base == 'f' && f.base == 'F' && f.base == 'g' && f.base == 'G' ) { fmtstr[star] = '\''; star -= 1; } /* locale only for f andg */ \
	676	else if ( ! f.flags.nobsdp && (f.base == 'a' \|\| f.base == 'A') ) { fmtstr[star] = '#'; star -= 1; } /* hex special case to get decimal point */ \
[3c573e9]	677	fmtstr[star] = '%'; \
	678	\
[244335b]	679	if ( ! f.flags.pc ) { /* no precision */ \
	680	fmtstr[sizeof(DFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
	681	/* printf( "[%g %c %d %s]\n", f.val, f.base, f.wd, &fmtstr[star] ); */ \
[94d2544]	682	PRINT_WITH_DP2( os, &fmtstr[star], f.wd, f.val ) \
[244335b]	683	} else { /* precision */ \
	684	fmtstr[sizeof(DFMTP)-2] = f.base; /* sizeof includes '\0' */ \
	685	/* printf( "[%g %c %d %d %s]\n", f.val, f.base, f.wd, f.pc, &fmtstr[star] ); */ \
[94d2544]	686	PRINT_WITH_DP2( os, &fmtstr[star], f.wd, f.pc, f.val ) \
[3c573e9]	687	} /* if */ \
	688	return os; \
	689	} /* ?\|? */ \
[e3fea42]	690	\
[b12e4ad]	691	OSTYPE_VOID_IMPL( os, _Ostream_Manip(T) ) \
[3c573e9]	692	} // distribution
	693
[94d2544]	694	FLOATING_POINT_FMT_IMPL( double, " * ", " . " )
	695	FLOATING_POINT_FMT_IMPL( long double, " L ", " .*L " )
[3c573e9]	696
[8d321f9]	697	// ********************************* character *********************************
[3c573e9]	698
[85d8153]	699	forall( ostype & \| basic_ostream( ostype ) ) {
[ae0c1c3]	700	ostype & ?\|?( ostype & os, _Ostream_Manip(char) f ) with ( basic_ostream_table ) {
[4f37255]	701	if ( f.base != 'c' ) { // bespoke binary/octal/hex format
[3c573e9]	702	_Ostream_Manip(unsigned char) fmtuc @= { f.val, f.wd, f.pc, f.base, {'\0'} };
	703	fmtuc.flags.pc = f.flags.pc;
	704	fmtuc.flags.nobsdp = f.flags.nobsdp;
[b19b362]	705	return (ostype &)(os \| fmtuc);
	706	} // if
	707	if ( f.flags.quote ) { // print as string
[bb1eabc]	708	char qv[] = { f.qleft, f.val, f.qright ? : f.qleft, '\0' };
[b19b362]	709	f.flags.quote = false; // already quoted
	710	_Ostream_Manip(const char *) fmtuc @= { qv, f.wd, f.pc, 's', {f.all} };
[3c573e9]	711	(ostype &)(os \| fmtuc);
[b19b362]	712	return nosep( os ); // no separator after char
[3c573e9]	713	} // if
	714
[6c5d92f]	715	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[3c573e9]	716
[b19b362]	717	#define CFMTNP "% *c"
[4f37255]	718	char fmtstr[sizeof(CFMTNP)]; // sizeof includes '\0'
[3c573e9]	719	memcpy( &fmtstr, CFMTNP, sizeof(CFMTNP) );
[4f37255]	720	int star = 1; // position before first '*'
[3c573e9]	721
	722	// Insert flags into spaces before '*', from right to left.
	723	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
	724	fmtstr[star] = '%';
	725
	726	// printf( "%d %s\n", f.wd, &fmtstr[star] );
	727	fmt( os, &fmtstr[star], f.wd, f.val );
[b19b362]	728	return nosep( os ); // no separator after char
[3c573e9]	729	} // ?\|?
[b12e4ad]	730	OSTYPE_VOID_IMPL( os, _Ostream_Manip(char) )
[3c573e9]	731	} // distribution
	732
[8d321f9]	733	// ********************************* C string *********************************
[3c573e9]	734
[85d8153]	735	forall( ostype & \| basic_ostream( ostype ) ) {
[ae0c1c3]	736	ostype & ?\|?( ostype & os, _Ostream_Manip(const char *) f ) with ( basic_ostream_table ) {
[3c573e9]	737	if ( ! f.val ) return os; // null pointer ?
	738
	739	if ( f.base != 's' ) { // bespoke binary/octal/hex format
	740	_Ostream_Manip(unsigned char) fmtuc @= { 0, f.wd, f.pc, f.base, {'\0'} };
	741	fmtuc.flags.pc = f.flags.pc;
	742	fmtuc.flags.nobsdp = f.flags.nobsdp;
[ebf8ca5]	743	for ( i; 0 ~ @ : @; f.val[i] != '\0' ) {
[3c573e9]	744	fmtuc.val = f.val[i];
	745	(ostype &)(os \| fmtuc);
	746	} // for
	747	return os;
	748	} // if
[b19b362]	749	if ( f.flags.quote ) { // print as string
	750	int len = strlen( f.val );
	751	char qv[len + 3]; // space for quotes and '\0'
[bb1eabc]	752	qv[0] = f.qleft; strcpy( &qv[1], f.val );
	753	qv[len + 1] = f.qright ? : f.qleft; qv[len + 2] = '\0'; // copy string surrounded with quotes
[b19b362]	754	f.flags.quote = false; // already quoted
	755	_Ostream_Manip(const char *) fmtuc @= { qv, f.wd, f.pc, 's', {f.all} };
	756	return (ostype &)(os \| fmtuc);
	757	} // if
[3c573e9]	758
[f5d9c37]	759	if ( f.val[0] != '\0' && // null string => no leading separator
	760	sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[3c573e9]	761
[b19b362]	762	#define SFMTNP "% *s"
	763	#define SFMTP "% .s"
[3c573e9]	764	char fmtstr[sizeof(SFMTP)]; // sizeof includes '\0'
	765	if ( ! f.flags.pc ) memcpy( &fmtstr, SFMTNP, sizeof(SFMTNP) );
	766	else memcpy( &fmtstr, SFMTP, sizeof(SFMTP) );
	767	int star = 1; // position before first '*'
	768
	769	// Insert flags into spaces before '*', from right to left.
	770	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
	771	fmtstr[star] = '%';
	772
	773	if ( ! f.flags.pc ) { // no precision
	774	// printf( "%d %s\n", f.wd, &fmtstr[star] );
	775	fmt( os, &fmtstr[star], f.wd, f.val );
	776	} else { // precision
	777	// printf( "%d %d %s\n", f.wd, f.pc, &fmtstr[star] );
	778	fmt( os, &fmtstr[star], f.wd, f.pc, f.val );
	779	} // if
[f5d9c37]	780	if ( f.val[0] == '\0' ) { nosep( os ); } // null string => no trailing separator
[3c573e9]	781	return os;
	782	} // ?\|?
[b12e4ad]	783	OSTYPE_VOID_IMPL( os, _Ostream_Manip(const char *) )
[3c573e9]	784	} // distribution
	785
	786
[8d321f9]	787	// ********************************* istream *********************************
[3c573e9]	788
[e56cfdb0]	789
[c015e2d]	790	#define FALSE "false"
	791	#define TRUE "true"
	792
[ef3ac46]	793	forall( istype & \| basic_istream( istype ) ) {
[ae0c1c3]	794	istype & ?\|?( istype & is, bool & b ) with ( basic_istream_table ) {
[c015e2d]	795	int len = -1; // len not set if no match
[04138cc]	796	fmt( is, " " ); // remove leading whitespace
	797	fmt( is, FALSE "%n", &len ); // try false, returns 0
[d796be70]	798	if ( len != sizeof( FALSE ) - 1 ) { // -1 removes null terminate
[04138cc]	799	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
	800	fmt( is, " " ); // remove leading whitespace
	801	fmt( is, TRUE "%n", &len ); // try true, returns 0
[c015e2d]	802	if ( len != sizeof( TRUE ) - 1 ) throwResume ExceptionInst( missing_data );
[2f4c910]	803	b = true;
	804	} else {
	805	b = false;
[3ce0d440]	806	} // if
	807	return is;
	808	} // ?\|?
	809
[ae0c1c3]	810	istype & ?\|?( istype & is, char & c ) with ( basic_istream_table ) {
[0efb269]	811	char temp;
	812	for () {
[fd5d251]	813	int args = fmt( is, "%c", &temp ); // can be called with EOF on
[b19b362]	814	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
[3ac5fd8]	815	assert( args == 1 ); // if not EOF => a single character must be read
[0efb269]	816	// do not overwrite parameter with newline unless appropriate
[b19b362]	817	if ( temp != '\n' \|\| getANL$( is ) ) { c = temp; break; }
[0efb269]	818	} // for
[3ce0d440]	819	return is;
	820	} // ?\|?
	821
[ae0c1c3]	822	istype & ?\|?( istype & is, signed char & sc ) with ( basic_istream_table ) {
[3ac5fd8]	823	int args = fmt( is, "%hhi", &sc ); // can be multiple characters (100)
	824	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	825	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	826	return is;
	827	} // ?\|?
	828
[ae0c1c3]	829	istype & ?\|?( istype & is, unsigned char & usc ) with ( basic_istream_table ) {
[3ac5fd8]	830	int args = fmt( is, "%hhi", &usc ); // can be multiple characters (-100)
[714e206]	831	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	832	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	833	return is;
	834	} // ?\|?
	835
[ae0c1c3]	836	istype & ?\|?( istype & is, short int & si ) with ( basic_istream_table ) {
[fd5d251]	837	int args = fmt( is, "%hi", &si ); // can be called with EOF on
[714e206]	838	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	839	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	840	return is;
	841	} // ?\|?
	842
[ae0c1c3]	843	istype & ?\|?( istype & is, unsigned short int & usi ) with ( basic_istream_table ) {
[fd5d251]	844	int args = fmt( is, "%hi", &usi ); // can be called with EOF on
[714e206]	845	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	846	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	847	return is;
	848	} // ?\|?
	849
[ae0c1c3]	850	istype & ?\|?( istype & is, int & i ) with ( basic_istream_table ) {
[fd5d251]	851	int args = fmt( is, "%i", &i ); // can be called with EOF on
[714e206]	852	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	853	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	854	return is;
	855	} // ?\|?
	856
[ae0c1c3]	857	istype & ?\|?( istype & is, unsigned int & ui ) with ( basic_istream_table ) {
[fd5d251]	858	int args = fmt( is, "%i", &ui ); // can be called with EOF on
[714e206]	859	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	860	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	861	return is;
	862	} // ?\|?
	863
[ae0c1c3]	864	istype & ?\|?( istype & is, long int & li ) with ( basic_istream_table ) {
[fd5d251]	865	int args = fmt( is, "%li", &li ); // can be called with EOF on
[714e206]	866	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	867	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	868	return is;
	869	} // ?\|?
	870
[ae0c1c3]	871	istype & ?\|?( istype & is, unsigned long int & ulli ) with ( basic_istream_table ) {
[fd5d251]	872	int args = fmt( is, "%li", &ulli ); // can be called with EOF on
[714e206]	873	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	874	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	875	return is;
	876	} // ?\|?
	877
[ae0c1c3]	878	istype & ?\|?( istype & is, long long int & lli ) with ( basic_istream_table ) {
[fd5d251]	879	int args = fmt( is, "%lli", &lli ); // can be called with EOF on
[714e206]	880	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	881	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	882	return is;
	883	} // ?\|?
	884
[ae0c1c3]	885	istype & ?\|?( istype & is, unsigned long long int & ulli ) with ( basic_istream_table ) {
[fd5d251]	886	int args = fmt( is, "%lli", &ulli ); // can be called with EOF on
[714e206]	887	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	888	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	889	return is;
	890	} // ?\|?
	891
[ef3ac46]	892	#if defined( __SIZEOF_INT128__ )
[e474cf09]	893	istype & ?\|?( istype & is, int128 & llli ) {
	894	return (istype &)(is \| (unsigned int128 &)llli);
	895	} // ?\|?
[fe68bdf]	896
[ae0c1c3]	897	istype & ?\|?( istype & is, unsigned int128 & ullli ) with ( basic_istream_table ) {
[fe68bdf]	898	char s[40];
	899	bool sign = false;
	900
	901	if ( fmt( is, " %[-]", s ) == 1 ) sign = true; // skip whitespace, negative sign ?
	902	// If the input is too large, the value returned is undefined. If there is no input, no value is returned
	903	if ( fmt( is, "%39[0-9]%*[0-9]", s ) == 1 ) { // take first 39 characters, ignore remaining
[e474cf09]	904	ullli = 0;
[ebf8ca5]	905	for ( i; 0 ~ @ : @; s[i] != '\0' ) {
[e474cf09]	906	ullli = ullli * 10 + s[i] - '0';
[fe68bdf]	907	} // for
[e474cf09]	908	if ( sign ) ullli = -ullli;
[3ac5fd8]	909	} // if
[fe68bdf]	910	return is;
	911	} // ?\|?
[ef3ac46]	912	#endif // __SIZEOF_INT128__
[3ce0d440]	913
[ae0c1c3]	914	istype & ?\|?( istype & is, float & f ) with ( basic_istream_table ) {
[fd5d251]	915	int args = fmt( is, "%f", &f ); // can be called with EOF on
[714e206]	916	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	917	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	918	return is;
	919	} // ?\|?
	920
[ae0c1c3]	921	istype & ?\|?( istype & is, double & d ) with ( basic_istream_table ) {
[fd5d251]	922	int args = fmt( is, "%lf", &d ); // can be called with EOF on
[714e206]	923	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	924	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	925	return is;
	926	} // ?\|?
	927
[ae0c1c3]	928	istype & ?\|?( istype & is, long double & ld ) with ( basic_istream_table ) {
[fd5d251]	929	int args = fmt( is, "%Lf", &ld ); // can be called with EOF on
[714e206]	930	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[fd5d251]	931	if ( eof( is ) && args != 1 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	932	return is;
	933	} // ?\|?
	934
[ae0c1c3]	935	istype & ?\|?( istype & is, float _Complex & fc ) with ( basic_istream_table ) {
[3ce0d440]	936	float re, im;
[fd5d251]	937	int args = fmt( is, "%f%fi", &re, &im ); // can be called with EOF on
[714e206]	938	if ( ! eof( is ) && args != 2 ) throwResume ExceptionInst( missing_data );
[fd5d251]	939	if ( eof( is ) && args != 2 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	940	fc = re + im * _Complex_I;
	941	return is;
	942	} // ?\|?
	943
[ae0c1c3]	944	istype & ?\|?( istype & is, double _Complex & dc ) with ( basic_istream_table ) {
[3ce0d440]	945	double re, im;
[fd5d251]	946	int args = fmt( is, "%lf%lfi", &re, &im ); // can be called with EOF on
[714e206]	947	if ( ! eof( is ) && args != 2 ) throwResume ExceptionInst( missing_data );
[fd5d251]	948	if ( eof( is ) && args != 2 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	949	dc = re + im * _Complex_I;
	950	return is;
	951	} // ?\|?
	952
[ae0c1c3]	953	istype & ?\|?( istype & is, long double _Complex & ldc ) with ( basic_istream_table ) {
[3ce0d440]	954	long double re, im;
[fd5d251]	955	int args = fmt( is, "%Lf%Lfi", &re, &im ); // can be called with EOF on
[714e206]	956	if ( ! eof( is ) && args != 2 ) throwResume ExceptionInst( missing_data );
[fd5d251]	957	if ( eof( is ) && args != 2 ) throwResume ExceptionInst( end_of_file );
[3ce0d440]	958	ldc = re + im * _Complex_I;
	959	return is;
	960	} // ?\|?
	961
[0528d79]	962	istype & ?\|?( istype & is, const char fmt[] ) with ( basic_istream_table ) { // match text
[8c13ca8]	963	size_t len = strlen( fmt );
[714e206]	964	char fmtstr[len + 16];
	965	strcpy( fmtstr, fmt ); // copy format and add %n
	966	strcpy( &fmtstr[len], "%n" );
[c015e2d]	967	len = -1;
[04138cc]	968	// scanf cursor does not move if no match, so eof cannot be detected.
[fd5d251]	969	fmt( is, fmtstr, &len ); // can be called with EOF on
	970	if ( ! eof( is ) && len == -1 ) throwResume ExceptionInst( missing_data );
	971	if ( eof( is ) && len == -1 ) throwResume ExceptionInst( end_of_file );
[0f107e4]	972	return is;
	973	} // ?\|?
[04396aa]	974
[3ce0d440]	975	// manipulators
	976	istype & ?\|?( istype & is, istype & (* manip)( istype & ) ) {
	977	return manip( is );
	978	} // ?\|?
[ff7f6d07]	979
[e474cf09]	980	void ?\|?( istype & is, istype & (* manip)( istype & ) ) {
[f842032]	981	manip( is );
[e474cf09]	982	} // ?\|?
[3ce0d440]	983
[ae0c1c3]	984	istype & nl( istype & is ) with ( basic_istream_table ) {
[3c5dee4]	985	fmt( is, "%*[^\n]" ); // ignore characters to newline
[63e129c]	986	if ( ! eof( is ) ) fmt( is, "%*c" ); // read newline
[3ce0d440]	987	return is;
[200fcb3]	988	} // nl
[0efb269]	989
[ae0c1c3]	990	istype & nlOn( istype & is ) with ( basic_istream_table ) {
[0efb269]	991	nlOn( is ); // call void returning
	992	return is;
	993	} // nlOn
	994
[ae0c1c3]	995	istype & nlOff( istype & is ) with ( basic_istream_table ) {
[0efb269]	996	nlOff( is ); // call void returning
	997	return is;
	998	} // nlOff
[ef3ac46]	999	} // distribution
[44574f2]	1000
[8d321f9]	1001	// ********************************* manipulators *********************************
[3c573e9]	1002
[ef3ac46]	1003	forall( istype & \| basic_istream( istype ) ) {
[ae0c1c3]	1004	istype & ?\|?( istype & is, _Istream_Cskip f ) with ( basic_istream_table ) {
[3ac5fd8]	1005	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
[bf1cbde]	1006	if ( f.scanset ) {
	1007	int nscanset = strlen(f.scanset);
	1008	char fmtstr[ sizeof("%*[]") + nscanset ];
	1009	int pos = 0;
[e0dc038]	1010	strcpy( &fmtstr[pos], "%*[" ); pos += 3;
[bf1cbde]	1011	strcpy( &fmtstr[pos], f.scanset ); pos += nscanset;
[e0dc038]	1012	strcpy( &fmtstr[pos], "]" );
[714e206]	1013	fmt( is, fmtstr, "" ); // skip scanset, zero or more
[e0dc038]	1014	} else {
	1015	char ch;
	1016	for ( f.wd ) { // skip N characters
[fd5d251]	1017	int args = fmt( is, "%c", &ch ); // can be called with EOF on
[3ac5fd8]	1018	if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
[e0dc038]	1019	} // for
	1020	} // if
[0f107e4]	1021	return is;
	1022	}
[e7a8f65]	1023
[ae0c1c3]	1024	istype & ?\|?( istype & is, _Istream_Cquote f ) with( basic_istream_table, f.cstr ) {
[3ac5fd8]	1025	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
[8c13ca8]	1026	int args;
[5764204]	1027	fini: {
[714e206]	1028	char rfmt[5] = { ' ', delimiters[0], '%', 'n', '\0' };
	1029	int len = -1; // may not be set in fmt
	1030	args = fmt( is, rfmt, &len ); // remove leading whitespace and quote
	1031	if ( eof( is ) \|\| len == -1 ) break fini;
[5764204]	1032
	1033	// Change the remainder of the read into a getline by reseting the closing delimiter.
	1034	if ( delimiters[1] != '\0' ) {
	1035	delimiters[0] = delimiters[1];
	1036	delimiters[1] = '\0';
[8c13ca8]	1037	} // if
[5764204]	1038	flags.delimiter = true;
	1039	return is \| (_Istream_Cstr )&f;
	1040	} // fini
[baa1d5d]	1041	// read failed => no pattern match => set string to null
	1042	if ( ! flags.ignore && s != 0p && args == 0 ) s[0] = '\0';
[8c13ca8]	1043	if ( args == 1 && eof( is ) ) { // data but scan ended at EOF
[768d091]	1044	clearerr( is ); // => reset EOF => detect again on next read
[8c13ca8]	1045	} // if
	1046	return is;
	1047	}
	1048
[ae0c1c3]	1049	istype & ?\|?( istype & is, _Istream_Cstr f ) with( basic_istream_table, f.cstr ) {
	1050	assert(eof);
[3ac5fd8]	1051	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
[e0dc038]	1052	const char * scanset;
	1053	size_t nscanset = 0;
[4aae2bd]	1054	if ( flags.delimiter ) scanset = delimiters; // getline ?
[5764204]	1055	else scanset = f.cstr.scanset;
[e0dc038]	1056	if ( scanset ) nscanset = strlen( scanset );
[5ad2c6c7]	1057
[e0dc038]	1058	char fmtstr[nscanset + 32]; // storage for scanset and format codes
[e474cf09]	1059	fmtstr[0] = '%';
[e0dc038]	1060	int pos = 1;
	1061	int args;
	1062	bool check = true;
	1063
[5764204]	1064	if ( flags.ignore ) { check = false; fmtstr[1] = '*'; pos += 1; }
	1065	int rwd = wd;
	1066	if ( wd != -1 ) { // => just ignore versus ignore with width
[2fa0237]	1067	// wd is buffer bytes available (for input chars + null terminator)
	1068	// rwd is count of input chars
[e0dc038]	1069	// no maximum width necessary because text ignored => width is read width
[5764204]	1070	if ( flags.rwd ) check = false;
	1071	else rwd = wd - 1;
	1072	assert( rwd > 0 );
[e0dc038]	1073	pos += sprintf( &fmtstr[pos], "%d", rwd );
[e474cf09]	1074	} // if
[2f34fde]	1075
[e0dc038]	1076	if ( ! scanset ) { // %s, %s, %ws, %ws
[5764204]	1077	// fprintf( stderr, "cstr %s\n", s );
[e0dc038]	1078	strcpy( &fmtstr[pos], "s%n" );
	1079	int len = 0; // may not be set in fmt
[5764204]	1080	if ( flags.ignore ) args = fmt( is, fmtstr, &len ); // no string argument for '*'
	1081	else args = fmt( is, fmtstr, s, &len );
[7b93027e]	1082	// fprintf( stderr, "cstr %s %d %d %d\n", fmtstr, args, len, f.cstr.wd );
[737bf73]	1083
	1084	// No data read and eof is on => true eof so raise exception.
	1085	if ( len == 0 && eof( is ) ) throwResume ExceptionInst( end_of_file );
	1086
[e0dc038]	1087	if ( check && len >= rwd && ! eof( is ) ) { // might not fit
[0860d9c]	1088	char peek;
[e0dc038]	1089	fmt( is, "%c", &peek ); // check for whitespace terminator
[8c13ca8]	1090	// fprintf( stderr, "peek %d '%c'\n", args, peek );
[714e206]	1091	if ( ! eof( is ) ) { // can only fail at eof
[a1a1f37d]	1092	ungetc( peek, is );
[8c13ca8]	1093	if ( ! isspace( peek ) ) throwResume ExceptionInst( cstring_length );
[e0dc038]	1094	} // if
[0860d9c]	1095	} // if
[3e4bf0d]	1096	// FIX ME: CFA strings need to be modified to NOT change the argument for this case, then this can be removed.
[7b93027e]	1097	//fprintf( stderr, "cstr %d %d %d %d '%s'\n", flags.ignore, args, len, eof( is ), s );
	1098	//if ( ! flags.ignore && args == 0 ) s[0]= '\0'; // read failed => no pattern match => set string to null
[e0dc038]	1099	} else {
[5764204]	1100	if ( flags.delimiter ) { // getline
[e0dc038]	1101	int len = 0; // may not be set in fmt
[30548de]	1102	if ( delimiters[2] != '\0' ) { // (quote) read single character ?
[baa1d5d]	1103	sprintf( &fmtstr[pos], "c%%n" );
	1104	} else {
	1105	sprintf( &fmtstr[pos], "[^%c]%%n", delimiters[0] );
	1106	} // if
[5764204]	1107	if ( flags.ignore ) args = fmt( is, fmtstr, &len ); // no string argument for '*'
	1108	else args = fmt( is, fmtstr, s, &len );
[714e206]	1109
[737bf73]	1110	// No data read and eof is on => true eof so raise exception.
	1111	if ( len == 0 && eof( is ) ) throwResume ExceptionInst( end_of_file );
	1112
[e0dc038]	1113	if ( check && len == rwd && ! eof( is ) ) { // might not fit
[5764204]	1114	char peek;
	1115	fmt( is, "%c", &peek ); // check for delimiter
[e0dc038]	1116	if ( ! eof( is ) ) {
[5764204]	1117	if ( peek != delimiters[0] ) {
[a1a1f37d]	1118	ungetc( peek, is );
[8c13ca8]	1119	throwResume ExceptionInst( cstring_length );
[e0dc038]	1120	} // if
	1121	} // if
[4aae2bd]	1122	} else fmt( is, "%*c" ); // remove delimiter
[e0dc038]	1123	} else {
	1124	// incl %[xxx], %[xxx], %w[xxx], %w[xxx]
	1125	// excl %[^xxx], %[^xxx], %w[^xxx], %w[^xxx]
[5764204]	1126	sprintf( &fmtstr[pos], "[%s%s]%%n", flags.inex ? "^" : "", scanset );
	1127	// fprintf( stderr, "incl/excl %s %d\n", fmtstr, wd );
[e0dc038]	1128	int len = 0; // may not be set in fmt
[5764204]	1129	if ( flags.ignore ) args = fmt( is, fmtstr, &len ); // no string argument for '*'
	1130	else args = fmt( is, fmtstr, s, &len );
	1131	// fprintf( stderr, "incl/excl %s \"%s\" %d %d %d %d %d %c\n", fmtstr, s, args, wd, len, eof( is ), check, s[wd] );
[737bf73]	1132
	1133	// No data read and eof is on => true eof so raise exception.
	1134	if ( len == 0 && eof( is ) ) throwResume ExceptionInst( end_of_file );
	1135
[e0dc038]	1136	if ( check && len == rwd && ! eof( is ) ) { // might not fit
[8c13ca8]	1137	// fprintf( stderr, "overflow\n" );
[e0dc038]	1138	char peek;
	1139	fmt( is, "%c", &peek ); // check for whitespace terminator
[8c13ca8]	1140	// fprintf( stderr, "peek %d '%c'\n", args, peek );
[e0dc038]	1141	if ( ! eof( is ) ) {
[a1a1f37d]	1142	ungetc( peek, is );
[5764204]	1143	if ( flags.inex ^ strchr( scanset, peek ) != 0p ) throwResume ExceptionInst( cstring_length );
[e0dc038]	1144	} // if
	1145	} // if
[0f107e4]	1146	} // if
[5764204]	1147	if ( ! flags.ignore && args == 0 ) s[0]= '\0'; // read failed => no pattern match => set string to null
[e0dc038]	1148	} // if
	1149	if ( args == 1 && eof( is ) ) { // data but scan ended at EOF
[768d091]	1150	clearerr( is ); // => reset EOF => detect again on next read
[e0dc038]	1151	} // if
[61c7239]	1152	return is;
[e474cf09]	1153	} // ?\|?
	1154	} // distribution
[86a8be5]	1155
[94d2544]	1156	#define INPUT_FMT_IMPL( T, CODE ) \
[ef3ac46]	1157	forall( istype & \| basic_istream( istype ) ) { \
[ae0c1c3]	1158	istype & ?\|?( istype & is, _Istream_Manip(T) f ) with ( basic_istream_table ) { \
[e474cf09]	1159	enum { size = 16 }; \
	1160	char fmtstr[size]; \
	1161	if ( f.wd == -1 ) { \
	1162	snprintf( fmtstr, size, "%%%s%s", f.ignore ? "*" : "", CODE ); \
	1163	} else { \
	1164	snprintf( fmtstr, size, "%%%s%d%s", f.ignore ? "*" : "", f.wd, CODE ); \
	1165	} /* if */ \
	1166	/* printf( "%d %s %p\n", f.wd, fmtstr, &f.val ); */ \
	1167	fmt( is, fmtstr, &f.val ); \
	1168	return is; \
	1169	} /* ?\|? */ \
	1170	} // distribution
[3c573e9]	1171
[baa1d5d]	1172	INPUT_FMT_IMPL( char, "c" )
[94d2544]	1173	INPUT_FMT_IMPL( signed char, "hhi" )
	1174	INPUT_FMT_IMPL( unsigned char, "hhi" )
	1175	INPUT_FMT_IMPL( signed short int, "hi" )
	1176	INPUT_FMT_IMPL( unsigned short int, "hi" )
	1177	INPUT_FMT_IMPL( signed int, "i" )
	1178	INPUT_FMT_IMPL( unsigned int, "i" )
	1179	INPUT_FMT_IMPL( signed long int, "li" )
	1180	INPUT_FMT_IMPL( unsigned long int, "li" )
	1181	INPUT_FMT_IMPL( signed long long int, "lli" )
	1182	INPUT_FMT_IMPL( unsigned long long int, "lli" )
	1183
	1184	INPUT_FMT_IMPL( float, "f" )
	1185	INPUT_FMT_IMPL( double, "lf" )
	1186	INPUT_FMT_IMPL( long double, "Lf" )
[3c573e9]	1187
[ef3ac46]	1188	forall( istype & \| basic_istream( istype ) ) {
[e474cf09]	1189	istype & ?\|?( istype & is, _Istream_Manip(float _Complex) fc ) {
	1190	float re, im;
	1191	_Istream_Manip(float) fmtuc @= { re, fc.wd, fc.ignore };
	1192	is \| fmtuc;
	1193	&fmtuc.val = &im;
	1194	is \| fmtuc;
	1195	if ( ! fc.ignore ) fc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
	1196	return is;
	1197	} // ?\|?
	1198
	1199	istype & ?\|?( istype & is, _Istream_Manip(double _Complex) dc ) {
	1200	double re, im;
	1201	_Istream_Manip(double) fmtuc @= { re, dc.wd, dc.ignore };
	1202	is \| fmtuc;
	1203	&fmtuc.val = &im;
	1204	is \| fmtuc;
	1205	if ( ! dc.ignore ) dc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
	1206	return is;
	1207	} // ?\|?
	1208
	1209	istype & ?\|?( istype & is, _Istream_Manip(long double _Complex) ldc ) {
	1210	long double re, im;
	1211	_Istream_Manip(long double) fmtuc @= { re, ldc.wd, ldc.ignore };
	1212	is \| fmtuc;
	1213	&fmtuc.val = &im;
	1214	is \| fmtuc;
	1215	if ( ! ldc.ignore ) ldc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
	1216	return is;
	1217	} // ?\|?
	1218	} // distribution
[3c573e9]	1219
[0528d79]	1220	// ********************************* enumerations *********************************
[2f34fde]	1221
[eae8b37]	1222	forall( istype & \| istream( istype ), E \| CfaEnum( E ) \| Serial( E ) )
[ae0c1c3]	1223	istype & ?\|?( istype & is, E & e ) with ( basic_istream_table ) {
[eae8b37]	1224	// Match longest input enumerator string to enumerator labels, where enumerator names are unique.
[0528d79]	1225	size_t N = countof( E ), lnths[N], maxlen = 0; // N must be > 0, maxlen must be > 0
	1226
	1227	size_t ec = 0;
	1228	for ( s; E ) { // gather label lengths
	1229	lnths[ec] = strlen( label( s ) );
	1230	if ( lnths[ec] > maxlen ) maxlen = lnths[ec]; // gather longest length
	1231	// printf( "%s %zd\n", label( s ), lnths[e] );
	1232	ec += 1;
[eae8b37]	1233	} // for
[0528d79]	1234	// printf( "maxlen %d\n", maxlen );
[eae8b37]	1235
[04138cc]	1236	fmt( is, " " ); // remove leading whitespace
[0528d79]	1237	if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
	1238	// printf( "after whitespace\n" );
	1239
	1240	char ch;
	1241	ssize_t exact = -1; // -1 => no exact match seen so far
	1242
	1243	for ( c; maxlen ) { // scan columns of the label matrix (some columns missing)
	1244	fmt( is, "%c", &ch ); // read character => get a character or EOF
	1245	// printf( "after fmt %d %d '%c'\n", c, args, ch );
	1246	if ( eof( is ) \|\| isspace( ch ) != 0 ) { // enumerator delimiter ? => end of enumerator
	1247	// printf( "match eof %zd %s\n", exact, label( fromInt( exact ) ) );
	1248	if ( exact != -1 ) { // exact match available ?
	1249	e = fromInt( exact );
	1250	return is;
	1251	} // if
	1252	// printf( "no match\n" );
	1253	// consume input character(s) as garbage
[768d091]	1254	clearerr( is ); // => read something => reset EOF => detect again on next read
[0528d79]	1255	throwResume ExceptionInst( missing_data ); // no matching enumerator
[eae8b37]	1256	} // if
	1257
[0528d79]	1258	bool match = false;
	1259	for ( r; N ) { // scan all enumeration labels for matching character
	1260	// if ( lnths[r] > c ) printf( "%d %d %d %c %s %c\n", c, r, lnths[r], ch, label( fromInt( r ) ), label( fromInt( r ) )[c] );
	1261	if ( lnths[r] > c && label( fromInt( r ) )[c] == ch ) { // label long enough and matching character ?
	1262	// printf( "match char\n" );
	1263	match = true;
	1264	if ( lnths[r] - 1 == c ) exact = r; // exact match ?
	1265	else if ( exact != -1 && lnths[exact] <= c ) exact = -1; // previous exact match too short ?
	1266	} else {
	1267	lnths[r] = 0; // mark enumerator ineligible
[eae8b37]	1268	} // if
[0528d79]	1269	} // for
	1270	// printf( "match %d\n", match );
	1271	if ( ! match ) { // no matching character in column
	1272	if ( exact != -1 ) { // exact match available ?
	1273	// printf( "match %zd unget %c\n", exact, ch );
	1274	ungetc( ch, is ); // push back last unmatching character
	1275	e = fromInt( exact );
	1276	return is;
	1277	} // if
	1278	// consume input character(s) as garbage
	1279	throwResume ExceptionInst( missing_data ); // no match found
[eae8b37]	1280	} // if
[0528d79]	1281	//printf( "loop match %d\n", match );
	1282	} // for
	1283	// printf( "loop end\n" );
	1284	e = fromInt( exact );
[eae8b37]	1285	return is;
	1286	}
[0528d79]	1287
[eae8b37]	1288	forall( ostype & \| ostream( ostype ), E \| CfaEnum( E ) ) {
	1289	ostype & ?\|?( ostype & os, E e ) {
	1290	return os \| label( e );
	1291	}
	1292	OSTYPE_VOID_IMPL( os, E )
	1293	}
	1294
[86bd7c1f]	1295	// Local Variables: //
	1296	// tab-width: 4 //
[084520f]	1297	// compile-command: "cfa iostream.cfa" //
[86bd7c1f]	1298	// End: //

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