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Last change on this file since e85a72b8 was 0d49efb, checked in by Peter A. Buhr <pabuhr@…>, 2 years ago
allow precision < 3 for manipulator eng
Property mode set to `100644`
File size: 38.8 KB

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[2fa0237]	1
[86bd7c1f]	2	//
	3	// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
	4	//
	5	// The contents of this file are covered under the licence agreement in the
	6	// file "LICENCE" distributed with Cforall.
	7	//
[b117e0c]	8	// iostream.cfa --
[86bd7c1f]	9	//
[90c3b1c]	10	// Author : Peter A. Buhr
[86bd7c1f]	11	// Created On : Wed May 27 17:56:53 2015
[e24f13a]	12	// Last Modified By : Peter A. Buhr
[0d49efb]	13	// Last Modified On : Sun Oct 8 12:10:21 2023
	14	// Update Count : 1564
[86bd7c1f]	15	//
[51b73452]	16
[58b6d1b]	17	#include "iostream.hfa"
[d3b7937]	18
[51b73452]	19	#include <stdio.h>
[53a6c2a]	20	#include <stdbool.h> // true/false
[e59e663]	21	#include <stdint.h> // UINT64_MAX
[6026628]	22	#include <float.h> // DBL_DIG, LDBL_DIG
	23	#include <complex.h> // creal, cimag
[0860d9c]	24	#include <ctype.h> // isspace
[aa25216]	25	//#include <stdio.h>
	26
[6026628]	27	extern "C" {
[44574f2]	28	extern size_t strlen (const char *__s) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));
[3c573e9]	29	extern int strcmp (const char __s1, const char __s2) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));
	30	extern char strcpy (char __restrict __dest, const char *__restrict __src) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
	31	extern void memcpy (void __restrict __dest, const void *__restrict __src, size_t __n) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
[0860d9c]	32	extern char strchr(const char str, int ch);
[3c573e9]	33	} // extern "C"
[51b73452]	34
[7cfef0d]	35	#include "math.hfa" // isfinite, floor, ceiling_div
	36	#include "bitmanip.hfa" // high1
[7fd71c7]	37
[cce4648]	38	#pragma GCC visibility push(default)
[61c7239]	39
[94d2544]	40
[8d321f9]	41	// ********************************* ostream *********************************
[61c7239]	42
	43
[85d8153]	44	forall( ostype & \| basic_ostream( ostype ) ) {
[93c2e0a]	45	ostype & ?\|?( ostype & os, bool b ) {
[6c5d92f]	46	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[3ce0d440]	47	fmt( os, "%s", b ? "true" : "false" );
	48	return os;
	49	} // ?\|?
[94d2544]	50	OSTYPE_VOID_IMPL( bool )
[51b73452]	51
[200fcb3]	52	ostype & ?\|?( ostype & os, char c ) {
	53	fmt( os, "%c", c );
[6c5d92f]	54	if ( c == '\n' ) setNL$( os, true );
[f5d9c37]	55	return nosep( os );
[200fcb3]	56	} // ?\|?
[94d2544]	57	OSTYPE_VOID_IMPL( char )
[3ce0d440]	58
[200fcb3]	59	ostype & ?\|?( ostype & os, signed char sc ) {
[6c5d92f]	60	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	61	fmt( os, "%'hhd", sc );
[3ce0d440]	62	return os;
	63	} // ?\|?
[94d2544]	64	OSTYPE_VOID_IMPL( signed char )
[3ce0d440]	65
[200fcb3]	66	ostype & ?\|?( ostype & os, unsigned char usc ) {
[6c5d92f]	67	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	68	fmt( os, "%'hhu", usc );
[3ce0d440]	69	return os;
	70	} // ?\|?
[94d2544]	71	OSTYPE_VOID_IMPL( unsigned char )
[3ce0d440]	72
	73	ostype & ?\|?( ostype & os, short int si ) {
[6c5d92f]	74	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	75	fmt( os, "%'hd", si );
[3ce0d440]	76	return os;
	77	} // ?\|?
[94d2544]	78	OSTYPE_VOID_IMPL( short int )
[3ce0d440]	79
	80	ostype & ?\|?( ostype & os, unsigned short int usi ) {
[6c5d92f]	81	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	82	fmt( os, "%'hu", usi );
[3ce0d440]	83	return os;
	84	} // ?\|?
[94d2544]	85	OSTYPE_VOID_IMPL( unsigned short int )
[3ce0d440]	86
	87	ostype & ?\|?( ostype & os, int i ) {
[6c5d92f]	88	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	89	fmt( os, "%'d", i );
[3ce0d440]	90	return os;
	91	} // ?\|?
[94d2544]	92	OSTYPE_VOID_IMPL( int )
[3ce0d440]	93
	94	ostype & ?\|?( ostype & os, unsigned int ui ) {
[6c5d92f]	95	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	96	fmt( os, "%'u", ui );
[3ce0d440]	97	return os;
	98	} // ?\|?
[94d2544]	99	OSTYPE_VOID_IMPL( unsigned int )
[3ce0d440]	100
	101	ostype & ?\|?( ostype & os, long int li ) {
[6c5d92f]	102	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	103	fmt( os, "%'ld", li );
[3ce0d440]	104	return os;
	105	} // ?\|?
[94d2544]	106	OSTYPE_VOID_IMPL( long int )
[3ce0d440]	107
	108	ostype & ?\|?( ostype & os, unsigned long int uli ) {
[6c5d92f]	109	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	110	fmt( os, "%'lu", uli );
[3ce0d440]	111	return os;
	112	} // ?\|?
[94d2544]	113	OSTYPE_VOID_IMPL( unsigned long int )
[3ce0d440]	114
	115	ostype & ?\|?( ostype & os, long long int lli ) {
[6c5d92f]	116	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	117	fmt( os, "%'lld", lli );
[3ce0d440]	118	return os;
	119	} // ?\|?
[94d2544]	120	OSTYPE_VOID_IMPL( long long int )
[3ce0d440]	121
	122	ostype & ?\|?( ostype & os, unsigned long long int ulli ) {
[6c5d92f]	123	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[0c51f9ad]	124	fmt( os, "%'llu", ulli );
[3ce0d440]	125	return os;
	126	} // ?\|?
[94d2544]	127	OSTYPE_VOID_IMPL( unsigned long long int )
[3ce0d440]	128
[ef3ac46]	129	#if defined( __SIZEOF_INT128__ )
[bd5b443]	130	// UINT64_MAX 18_446_744_073_709_551_615_ULL
	131	#define P10_UINT64 10_000_000_000_000_000_000_ULL // 19 zeroes
	132
[ffa48a8]	133	static inline void base10_128( ostype & os, unsigned int128 val ) {
[ef3ac46]	134	#if defined(__GNUC__) && __GNUC_PREREQ(7,0) // gcc version >= 7
[2c60c644]	135	if ( val > P10_UINT64 ) {
[ef3ac46]	136	#else
[ffa48a8]	137	if ( (uint64_t)(val >> 64) != 0 \|\| (uint64_t)val > P10_UINT64 ) { // patch gcc 5 & 6 -O3 bug
[ef3ac46]	138	#endif // __GNUC_PREREQ(7,0)
[bd5b443]	139	base10_128( os, val / P10_UINT64 ); // recursive
	140	fmt( os, "%.19lu", (uint64_t)(val % P10_UINT64) );
	141	} else {
	142	fmt( os, "%lu", (uint64_t)val );
	143	} // if
	144	} // base10_128
	145
[ffa48a8]	146	static inline void base10_128( ostype & os, int128 val ) {
[bd5b443]	147	if ( val < 0 ) {
	148	fmt( os, "-" ); // leading negative sign
	149	val = -val;
	150	} // if
	151	base10_128( os, (unsigned int128)val ); // print zero/positive value
	152	} // base10_128
	153
	154	ostype & ?\|?( ostype & os, int128 llli ) {
[6c5d92f]	155	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[bd5b443]	156	base10_128( os, llli );
	157	return os;
	158	} // ?\|?
[94d2544]	159	OSTYPE_VOID_IMPL( int128 )
[bd5b443]	160
	161	ostype & ?\|?( ostype & os, unsigned int128 ullli ) {
[6c5d92f]	162	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[bd5b443]	163	base10_128( os, ullli );
	164	return os;
	165	} // ?\|?
[94d2544]	166	OSTYPE_VOID_IMPL( unsigned int128 )
[ef3ac46]	167	#endif // __SIZEOF_INT128__
[bd5b443]	168
[94d2544]	169	#define PRINT_WITH_DP( os, format, val, ... ) \
[e63326b]	170	{ \
	171	enum { size = 48 }; \
	172	char buf[size]; \
	173	int len = snprintf( buf, size, format, ##__VA_ARGS__, val ); \
	174	fmt( os, "%s", buf ); \
[fd4c009]	175	if ( isfinite( val ) ) { /* if number, print decimal point when no fraction or exponent */ \
[f6a4917]	176	for ( i; 0 ~ @ ) { \
[e63326b]	177	if ( i == len ) { fmt( os, "." ); break; } \
[09a767e]	178	if ( buf[i] == '.' \|\| buf[i] == 'e' \|\| buf[i] == 'E' \|\| \
	179	buf[i] == 'p' \|\| buf[i] == 'P' ) break; /* decimal point or scientific ? */ \
[e63326b]	180	} /* for */ \
	181	} /* if */ \
	182	}
[b2ac656]	183
[3ce0d440]	184	ostype & ?\|?( ostype & os, float f ) {
[6c5d92f]	185	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[94d2544]	186	PRINT_WITH_DP( os, "%'g", f );
[3ce0d440]	187	return os;
	188	} // ?\|?
[94d2544]	189	OSTYPE_VOID_IMPL( float )
[3ce0d440]	190
	191	ostype & ?\|?( ostype & os, double d ) {
[6c5d92f]	192	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[94d2544]	193	PRINT_WITH_DP( os, "%'.*lg", d, DBL_DIG );
[3ce0d440]	194	return os;
	195	} // ?\|?
[94d2544]	196	OSTYPE_VOID_IMPL( double )
[3ce0d440]	197
	198	ostype & ?\|?( ostype & os, long double ld ) {
[6c5d92f]	199	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[94d2544]	200	PRINT_WITH_DP( os, "%'.*Lg", ld, LDBL_DIG );
[3ce0d440]	201	return os;
	202	} // ?\|?
[94d2544]	203	OSTYPE_VOID_IMPL( long double )
[3ce0d440]	204
	205	ostype & ?\|?( ostype & os, float _Complex fc ) {
[6c5d92f]	206	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[b2ac656]	207	// os \| crealf( fc ) \| nonl;
[94d2544]	208	PRINT_WITH_DP( os, "%'g", crealf( fc ) );
	209	PRINT_WITH_DP( os, "%'+g", cimagf( fc ) );
[3c5dee4]	210	fmt( os, "i" );
[3ce0d440]	211	return os;
	212	} // ?\|?
[94d2544]	213	OSTYPE_VOID_IMPL( float _Complex )
[3ce0d440]	214
	215	ostype & ?\|?( ostype & os, double _Complex dc ) {
[6c5d92f]	216	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[b2ac656]	217	// os \| creal( dc ) \| nonl;
[94d2544]	218	PRINT_WITH_DP( os, "%'.*lg", creal( dc ), DBL_DIG );
	219	PRINT_WITH_DP( os, "%'+.*lg", cimag( dc ), DBL_DIG );
[3c5dee4]	220	fmt( os, "i" );
[3ce0d440]	221	return os;
	222	} // ?\|?
[94d2544]	223	OSTYPE_VOID_IMPL( double _Complex )
[3ce0d440]	224
	225	ostype & ?\|?( ostype & os, long double _Complex ldc ) {
[6c5d92f]	226	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[b2ac656]	227	// os \| creall( ldc ) \|\| nonl;
[94d2544]	228	PRINT_WITH_DP( os, "%'.*Lg", creall( ldc ), LDBL_DIG );
	229	PRINT_WITH_DP( os, "%'+.*Lg", cimagl( ldc ), LDBL_DIG );
[3c5dee4]	230	fmt( os, "i" );
[3ce0d440]	231	return os;
	232	} // ?\|?
[94d2544]	233	OSTYPE_VOID_IMPL( long double _Complex )
[3ce0d440]	234
[e474cf09]	235	ostype & ?\|?( ostype & os, const char s[] ) {
[3ce0d440]	236	enum { Open = 1, Close, OpenClose };
[28c2933d]	237	static const unsigned char mask[256] @= { // 256 covers all Latin-1 characters
[3ce0d440]	238	// opening delimiters, no space after
	239	['('] : Open, ['['] : Open, ['{'] : Open,
[ad72c8b]	240	['='] : Open, ['$'] : Open, [(unsigned char)'£'] : Open, [(unsigned char)'¥'] : Open,
	241	[(unsigned char)'¡'] : Open, [(unsigned char)'¿'] : Open, [(unsigned char)'«'] : Open,
[3ce0d440]	242	// closing delimiters, no space before
	243	[','] : Close, ['.'] : Close, [';'] : Close, ['!'] : Close, ['?'] : Close,
[ad72c8b]	244	['%'] : Close, [(unsigned char)'¢'] : Close, [(unsigned char)'»'] : Close,
[3ce0d440]	245	[')'] : Close, [']'] : Close, ['}'] : Close,
	246	// opening-closing delimiters, no space before or after
	247	['\''] : OpenClose, ['`'] : OpenClose, ['"'] : OpenClose, [':'] : OpenClose,
	248	[' '] : OpenClose, ['\f'] : OpenClose, ['\n'] : OpenClose, ['\r'] : OpenClose, ['\t'] : OpenClose, ['\v'] : OpenClose, // isspace
	249	}; // mask
	250
[6a33e40]	251	if ( s == 0p ) { fmt( os, "%s", "0p" ); return os; } // null pointer
[f5d9c37]	252	if ( s[0] == '\0' ) { nosep( os ); return os; } // null string => no leading/trailing separator
[3ce0d440]	253
	254	// first character IS NOT spacing or closing punctuation => add left separator
[e474cf09]	255	unsigned char ch = s[0]; // must make unsigned
[6c5d92f]	256	if ( sepPrt$( os ) && mask[ ch ] != Close && mask[ ch ] != OpenClose ) {
	257	fmt( os, "%s", sepGetCur$( os ) );
[3ce0d440]	258	} // if
	259
	260	// if string starts line, must reset to determine open state because separator is off
[6c5d92f]	261	sepReset$( os ); // reset separator
[3ce0d440]	262
	263	// last character IS spacing or opening punctuation => turn off separator for next item
[85d8153]	264	int len = strlen( s );
[e474cf09]	265	ch = s[len - 1]; // must make unsigned
[85d8153]	266	fmt( os, "%s", s ); // fmt resets seperator, but reset it again
[6c5d92f]	267	if ( sepPrt$( os ) && mask[ ch ] != Open && mask[ ch ] != OpenClose ) {
[f5d9c37]	268	sep( os );
[3ce0d440]	269	} else {
[f5d9c37]	270	nosep( os );
[3ce0d440]	271	} // if
[6c5d92f]	272	if ( ch == '\n' ) setNL$( os, true ); // check AFTER sepPrt$ call above as it resets NL flag
[85d8153]	273	return os;
	274	// return write( os, s, len );
[3ce0d440]	275	} // ?\|?
[94d2544]	276	OSTYPE_VOID_IMPL( const char * )
[3ce0d440]	277
[e7a8f65]	278	// ostype & ?\|?( ostype & os, const char16_t s[] ) {
[6c5d92f]	279	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[e474cf09]	280	// fmt( os, "%ls", s );
[3ce0d440]	281	// return os;
	282	// } // ?\|?
[d3b7937]	283
[3ce0d440]	284	// #if ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 ) // char32_t == wchar_t => ambiguous
[e7a8f65]	285	// ostype & ?\|?( ostype & os, const char32_t s[] ) {
[6c5d92f]	286	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[e474cf09]	287	// fmt( os, "%ls", s );
[3ce0d440]	288	// return os;
	289	// } // ?\|?
	290	// #endif // ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 )
[d3b7937]	291
[e7a8f65]	292	// ostype & ?\|?( ostype & os, const wchar_t s[] ) {
[6c5d92f]	293	// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[e474cf09]	294	// fmt( os, "%ls", s );
[3ce0d440]	295	// return os;
	296	// } // ?\|?
	297
	298	ostype & ?\|?( ostype & os, const void * p ) {
[6c5d92f]	299	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[3ce0d440]	300	fmt( os, "%p", p );
	301	return os;
	302	} // ?\|?
[94d2544]	303	OSTYPE_VOID_IMPL( const void * )
[3ce0d440]	304
	305	// manipulators
	306	ostype & ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) {
[e474cf09]	307	return manip( os );
[200fcb3]	308	} // ?\|?
	309	void ?\|?( ostype & os, ostype & (* manip)( ostype & ) ) {
[e474cf09]	310	manip( os );
[6c5d92f]	311	if ( getPrt$( os ) ) ends( os ); // something printed ?
	312	setPrt$( os, false ); // turn off
[3ce0d440]	313	} // ?\|?
	314
[200fcb3]	315	ostype & nl( ostype & os ) {
[9d362a0]	316	(ostype &)(os \| '\n');
[6c5d92f]	317	setPrt$( os, false ); // turn off
	318	setNL$( os, true );
[f5d9c37]	319	return nosep( os ); // prepare for next line
[200fcb3]	320	} // nl
	321
	322	ostype & nonl( ostype & os ) {
[6c5d92f]	323	setPrt$( os, false ); // turn off
[3ce0d440]	324	return os;
[200fcb3]	325	} // nonl
[3ce0d440]	326
[f5d9c37]	327	ostype & nlOn( ostype & os ) {
	328	nlOn( os ); // call void returning
[3ce0d440]	329	return os;
[f5d9c37]	330	} // nlOn
[3ce0d440]	331
[f5d9c37]	332	ostype & nlOff( ostype & os ) {
	333	nlOff( os ); // call void returning
[3ce0d440]	334	return os;
[f5d9c37]	335	} // nlOff
[6de9f4a]	336
[f5d9c37]	337	ostype & sepVal( ostype & os ) {
	338	return (ostype &)(os \| sepGet( os ));
	339	} // sepVal
	340
	341	ostype & sepTupleVal( ostype & os ) {
	342	return os \| sepGetTuple( os );
	343	} // sepTupleVal
	344
	345	ostype & sep( ostype & os ) {
	346	sep( os ); // call void returning
[3ce0d440]	347	return os;
[f5d9c37]	348	} // sep
[b6dc097]	349
[f5d9c37]	350	ostype & nosep( ostype & os ) {
	351	nosep( os ); // call void returning
[3ce0d440]	352	return os;
[f5d9c37]	353	} // nosep
[cf16f94]	354
[f5d9c37]	355	ostype & sepOn( ostype & os ) {
	356	sepOn( os ); // call void returning
[200fcb3]	357	return os;
[f5d9c37]	358	} // sepOn
[200fcb3]	359
[f5d9c37]	360	ostype & sepOff( ostype & os ) {
	361	sepOff( os ); // call void returning
[200fcb3]	362	return os;
[f5d9c37]	363	} // sepOff
[85d8153]	364	} // distribution
[e474cf09]	365
[c443d1d]	366	// tuples
[fd54fef]	367	forall( ostype &, T, Params... \| writeable( T, ostype ) \| { ostype & ?\|?( ostype &, Params ); } ) {
[200fcb3]	368	ostype & ?\|?( ostype & os, T arg, Params rest ) {
[9d362a0]	369	(ostype &)(os \| arg); // print first argument
[6c5d92f]	370	sepSetCur$( os, sepGetTuple( os ) ); // switch to tuple separator
[9d362a0]	371	(ostype &)(os \| rest); // print remaining arguments
[6c5d92f]	372	sepSetCur$( os, sepGet( os ) ); // switch to regular separator
[200fcb3]	373	return os;
	374	} // ?\|?
	375	void ?\|?( ostype & os, T arg, Params rest ) {
[65240bb]	376	// (ostype &)(?\|?( os, arg, rest )); ends( os );
[9d362a0]	377	(ostype &)(os \| arg); // print first argument
[6c5d92f]	378	sepSetCur$( os, sepGetTuple( os ) ); // switch to tuple separator
[9d362a0]	379	(ostype &)(os \| rest); // print remaining arguments
[6c5d92f]	380	sepSetCur$( os, sepGet( os ) ); // switch to regular separator
[65240bb]	381	ends( os );
[200fcb3]	382	} // ?\|?
	383	} // distribution
[c443d1d]	384
[61c7239]	385	// writes the range [begin, end) to the given stream
[fd54fef]	386	forall( ostype &, elt_type \| writeable( elt_type, ostype ), iterator_type \| iterator( iterator_type, elt_type ) ) {
[61c7239]	387	void write( iterator_type begin, iterator_type end, ostype & os ) {
	388	void print( elt_type i ) { os \| i; }
	389	for_each( begin, end, print );
	390	} // ?\|?
	391
	392	void write_reverse( iterator_type begin, iterator_type end, ostype & os ) {
	393	void print( elt_type i ) { os \| i; }
	394	for_each_reverse( begin, end, print );
	395	} // ?\|?
	396	} // distribution
	397
[8d321f9]	398	// ********************************* manipulators *********************************
[3c573e9]	399
[8d321f9]	400	// ********************************* integral *********************************
[3c573e9]	401
	402	static const char * shortbin[] = { "0", "1", "10", "11", "100", "101", "110", "111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
	403	static const char * longbin[] = { "0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
	404
	405	// Default prefix for non-decimal prints is 0b, 0, 0x.
[94d2544]	406	#define INTEGRAL_FMT_IMPL( T, IFMTNP, IFMTP ) \
[85d8153]	407	forall( ostype & \| basic_ostream( ostype ) ) { \
[3c573e9]	408	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
[6c5d92f]	409	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) ); \
[3c573e9]	410	\
	411	if ( f.base == 'b' \|\| f.base == 'B' ) { /* bespoke binary format */ \
[7fd71c7]	412	int bits = high1( f.val ); /* position of most significant bit */ \
	413	if ( bits == 0 ) bits = 1; /* 0 value => force one bit to print */ \
[c7978c0]	414	int spaces; \
[3c573e9]	415	if ( ! f.flags.left ) { /* right justified ? */ \
	416	/* Note, base prefix then zero padding or spacing then prefix. */ \
[c7978c0]	417	if ( f.flags.pc ) { \
	418	spaces = f.wd - f.pc; \
	419	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
	420	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
[3c573e9]	421	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
[c7978c0]	422	spaces = f.pc - bits; \
[3c573e9]	423	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
	424	} else { \
[c7978c0]	425	spaces = f.wd - bits; \
	426	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
	427	if ( f.flags.pad0 ) { \
	428	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
	429	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
	430	} else { \
	431	if ( spaces > 0 ) fmt( os, "%s", spaces, " " ); / space pad */ \
	432	if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
	433	} /* if */ \
	434	} /* if */ \
	435	} else { \
	436	if ( ! f.flags.nobsdp ) fmt( os, "0%c", f.base ); \
	437	if ( f.flags.pc ) { \
	438	spaces = f.pc - bits; \
	439	if ( spaces > 0 ) fmt( os, "%0d", spaces, 0 ); / zero pad */ \
	440	spaces = f.wd - f.pc; \
	441	} else { /* pad0 flag ignored with left flag */ \
	442	spaces = f.wd - bits; \
[3c573e9]	443	} /* if */ \
[c7978c0]	444	if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
[3c573e9]	445	} /* if */ \
[fd4d3017]	446	int shift = floor( bits - 1, 4 ); \
[3c573e9]	447	typeof( f.val ) temp = f.val; \
	448	fmt( os, "%s", shortbin[(temp >> shift) & 0xf] ); \
	449	for () { \
	450	shift -= 4; \
	451	if ( shift < 0 ) break; \
	452	temp = f.val; \
	453	fmt( os, "%s", longbin[(temp >> shift) & 0xf] ); \
	454	} /* for */ \
	455	if ( f.flags.left && spaces > 0 ) fmt( os, "%*s", spaces, " " ); \
	456	return os; \
[2c60c644]	457	} /* if */ \
[3c573e9]	458	\
	459	char fmtstr[sizeof(IFMTP)]; /* sizeof includes '\0' */ \
	460	if ( ! f.flags.pc ) memcpy( &fmtstr, IFMTNP, sizeof(IFMTNP) ); \
	461	else memcpy( &fmtstr, IFMTP, sizeof(IFMTP) ); \
[0c51f9ad]	462	int star = 5; /* position before first '' / \
[3c573e9]	463	\
	464	/* Insert flags into spaces before '', from right to left. / \
	465	if ( ! f.flags.nobsdp ) { fmtstr[star] = '#'; star -= 1; } \
	466	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
[2c60c644]	467	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
[3c573e9]	468	if ( f.flags.pad0 && ! f.flags.pc ) { fmtstr[star] = '0'; star -= 1; } \
[0c51f9ad]	469	fmtstr[star] = '\''; star -= 1; /* locale */ \
[3c573e9]	470	fmtstr[star] = '%'; \
[09a767e]	471	\
	472	/* Special case printing 0 in hexadecimal as printf does not put the base. */ \
	473	if ( (f.base == 'x' \| f.base == 'X') && ! f.flags.nobsdp && f.val == 0 ) { \
	474	fmt( os, f.base == 'x' ? "0x" : "0X" ); \
	475	f.wd -= 2; \
	476	if ( f.wd < 0 ) f.wd = 1; \
	477	} /* if */ \
[3c573e9]	478	\
	479	if ( ! f.flags.pc ) { /* no precision */ \
	480	fmtstr[sizeof(IFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
[2c60c644]	481	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
[3c573e9]	482	fmt( os, &fmtstr[star], f.wd, f.val ); \
	483	} else { /* precision */ \
	484	fmtstr[sizeof(IFMTP)-2] = f.base; /* sizeof includes '\0' */ \
[2c60c644]	485	/* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
[3c573e9]	486	fmt( os, &fmtstr[star], f.wd, f.pc, f.val ); \
	487	} /* if */ \
	488	return os; \
	489	} /* ?\|? */ \
[94d2544]	490	OSTYPE_VOID_IMPL( _Ostream_Manip(T) ) \
[3c573e9]	491	} // distribution
	492
[94d2544]	493	INTEGRAL_FMT_IMPL( signed char, " hh ", " .*hh " )
	494	INTEGRAL_FMT_IMPL( unsigned char, " hh ", " .*hh " )
	495	INTEGRAL_FMT_IMPL( signed short int, " h ", " .*h " )
	496	INTEGRAL_FMT_IMPL( unsigned short int, " h ", " .*h " )
	497	INTEGRAL_FMT_IMPL( signed int, " * ", " . " )
	498	INTEGRAL_FMT_IMPL( unsigned int, " * ", " . " )
	499	INTEGRAL_FMT_IMPL( signed long int, " l ", " .*l " )
	500	INTEGRAL_FMT_IMPL( unsigned long int, " l ", " .*l " )
	501	INTEGRAL_FMT_IMPL( signed long long int, " ll ", " .*ll " )
	502	INTEGRAL_FMT_IMPL( unsigned long long int, " ll ", " .*ll " )
[bd5b443]	503
[2c60c644]	504
	505	#if defined( __SIZEOF_INT128__ )
	506	// Default prefix for non-decimal prints is 0b, 0, 0x.
[85d8153]	507	forall( ostype & \| basic_ostream( ostype ) )
[2c60c644]	508	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 ) {
	509	int wd = 1; // f.wd is never 0 because 0 implies left-pad
	510	if ( val > power ) { // subdivide value into printable 64-bit values
	511	base_128( os, val / power, power, f, maxdig, bits, cnt + 1 ); // recursive
	512	f.val = val % power;
[ac9ba12]	513	if ( cnt == 1 && f.flags.left ) { wd = f.wd; f.wd = maxdig; } // copy f.wd and reset for printing middle chunk
[7d9bbef]	514	// printf( "R val:%#lx(%lu) wd:%u pc:%u base:%c neg:%d pc:%d left:%d nobsdp:%d sign:%d pad0:%d\n",
	515	// 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]	516	(ostype &)(os \| f);
	517	if ( cnt == 1 ) {
[ac9ba12]	518	if ( f.flags.left ) { wd -= maxdig; f.wd = wd < 0 ? 1 : wd; } // update and restore f.wd for printing end chunk
[f5d9c37]	519	nosep( os ); // no seperator between chunks
[2c60c644]	520	} // if
[ac9ba12]	521	} else { // print start chunk
[2c60c644]	522	f.val = val;
	523	// f.pc is unsigned => use wd
	524	if ( f.flags.pc && f.pc > maxdig * cnt ) { wd = f.pc - maxdig * cnt; f.pc = wd < 0 ? 0 : wd; }
	525	else { f.flags.pc = false; f.pc = 0; }
	526
	527	if ( ! f.flags.left ) { // right justify
	528	wd = f.wd - maxdig * cnt;
	529	f.wd = wd < 0 ? 1 : wd;
	530	wd = maxdig;
	531	} else { // left justify
	532	if ( cnt != 0 ) { // value >= 2^64 ?
	533	unsigned int dig, bs = 0;
[ac9ba12]	534	// compute size of prefix digits and base
[2c60c644]	535	if ( f.base == 'd' \|\| f.base == 'u' ) { // no base prefix
	536	dig = ceil( log10( f.val ) ); // use floating-point
	537	if ( f.base == 'd' && (f.flags.neg \|\| f.flags.sign) ) bs = 1; // sign ?
	538	} else {
[53fd995]	539	dig = ceiling_div( high1( f.val ), bits );
[2c60c644]	540	if ( ! f.flags.nobsdp ) { // base prefix ?
	541	if ( f.base == 'o' ) {
	542	// 0 prefix for octal is not added for precision with leading zero
	543	if ( f.pc <= dig ) bs = 1; // 1 character prefix
	544	} else bs = 2; // 2 character prefix
	545	} // if
	546	} // if
	547	wd = f.wd - (f.pc > dig ? f.pc : dig) - bs; // precision > leading digits ?
	548	if ( wd < 0 ) wd = 1;
	549	f.wd = 1;
	550	} // if
	551	// all manipulators handled implicitly for value < 2^64
	552	} // if
	553	// prior checks ensure wd not negative
	554
	555	if ( f.flags.neg ) f.val = -f.val;
[7d9bbef]	556	// printf( "L val:%#lx(%lu) wd:%u pc:%u base:%c neg:%d pc:%d left:%d nobsdp:%d sign:%d pad0:%d\n",
	557	// 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]	558	(ostype &)(os \| f);
	559
[ac9ba12]	560	// remaining middle and end chunks are padded with 0s on the left
[2c60c644]	561	if ( ! f.flags.left ) { f.flags.pad0 = true; f.flags.pc = false; } // left pad with 0s
	562	else { f.pc = maxdig; f.flags.pc = true; } // left pad with precision
[ac9ba12]	563
[f5d9c37]	564	if ( cnt != 0 ) nosep( os ); // no seperator between chunks
[ac9ba12]	565	f.wd = wd; // reset f.wd for next chunk
	566	f.flags.sign = false; // no leading +/- sign
	567	f.flags.nobsdp = true; // no leading base prefix
[2c60c644]	568	} // if
	569	} // base_128
	570
[94d2544]	571	#define INTEGRAL_FMT_IMPL128( T ) \
[85d8153]	572	forall( ostype & \| basic_ostream( ostype ) ) { \
[2c60c644]	573	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
	574	_Ostream_Manip(uint64_t) fmt; \
	575	fmt.[wd, pc, base, all] = f.[wd, pc, base, all]; \
	576	if ( f.base == 'b' \| f.base == 'B' ) { \
	577	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 64, 1 ); \
	578	} else if ( f.base == 'o' ) { \
	579	base_128( os, f.val, (unsigned int128)1 << 63, fmt, 21, 3 ); \
	580	} else if ( f.base == 'd' \|\| f.base == 'u' ) { \
	581	if ( f.base == 'd' && f.val < 0 ) { f.val = -f.val; fmt.flags.neg = true; } \
	582	base_128( os, f.val, (unsigned int128)10_000_000_000_000_000_000UL, fmt, 19, 0 ); \
	583	} else { \
	584	base_128( os, f.val, (unsigned int128)1 << 64, fmt, 16, 4 ); \
	585	} /* if */ \
	586	return os; \
	587	} /* ?\|? */ \
[94d2544]	588	OSTYPE_VOID_IMPL( _Ostream_Manip(T) ) \
[2c60c644]	589	} // distribution
	590
[94d2544]	591	INTEGRAL_FMT_IMPL128( int128 )
	592	INTEGRAL_FMT_IMPL128( unsigned int128 )
[2c60c644]	593	#endif // __SIZEOF_INT128__
[bd5b443]	594
[8d321f9]	595	// ********************************* floating point *********************************
[3c573e9]	596
[fd4c009]	597	static const char *suffixes[] = {
	598	"y", "z", "a", "f", "p", "n", "u", "m", "",
	599	"K", "M", "G", "T", "P", "E", "Z", "Y"
	600	};
	601	#define SUFFIXES_START (-24) /* Smallest power for which there is a suffix defined. */
	602	#define SUFFIXES_END (SUFFIXES_START + (int)((sizeof(suffixes) / sizeof(char ) - 1) 3))
	603
[94d2544]	604	#define PRINT_WITH_DP2( os, format, ... ) \
[3c573e9]	605	{ \
[fd4c009]	606	if ( ! f.flags.eng ) { \
	607	len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
[bcbc7e4]	608	if ( isfinite( f.val ) && ! f.flags.nobsdp ) { /* if number, print decimal point when no fraction or exponent */ \
[09a767e]	609	for ( i = 0; i < len && buf[i] != '.' && buf[i] != 'e' && buf[i] != 'E' && \
[bcbc7e4]	610	buf[i] != 'p' && buf[i] != 'P'; i += 1 ); /* decimal point or scientific ? */ \
[fd4c009]	611	if ( i == len ) { \
	612	if ( ! f.flags.left ) { \
	613	buf[i] = '.'; buf[i + 1] = '\0'; \
	614	if ( buf[0] == ' ' ) bufbeg = 1; /* decimal point within width */ \
	615	} else { \
	616	for ( i = 0; i < len && buf[i] != ' '; i += 1 ); /* trailing blank ? */ \
	617	buf[i] = '.'; \
	618	if ( i == len ) buf[i + 1] = '\0'; \
	619	} /* if */ \
[3c573e9]	620	} /* if */ \
	621	} /* if */ \
[fd4c009]	622	} else { \
	623	int exp10, len2; \
	624	eng( f.val, f.pc, exp10 ); /* changes arguments */ \
[b1e614f4]	625	/* printf( "%g %d %d %d %s\n", f.val, f.wd, f.pc, exp10, format ); */ \
[fd4c009]	626	if ( ! f.flags.left && f.wd > 1 ) { \
[b1e614f4]	627	/* Exponent size: 'e', optional minus sign, number of digits: log10(0) => undefined */ \
	628	f.wd -= 1 + (exp10 < 0 ? 1 : 0) + lrint( floor( exp10 == 0 ? 0 : log10( abs( exp10 ) ) ) ) + 1; \
[fd4c009]	629	if ( f.wd < 1 ) f.wd = 1; \
	630	} /* if */ \
	631	len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
	632	if ( f.flags.left ) { \
	633	for ( len -= 1; len > 0 && buf[len] == ' '; len -= 1 ); \
	634	len += 1; \
	635	} /* if */ \
	636	if ( ! f.flags.nobsdp \|\| (exp10 < SUFFIXES_START) \|\| (exp10 > SUFFIXES_END) ) { \
[fb907d3]	637	len2 = snprintf( &buf[len], size - len, "e%d", (int)exp10 /* ambiguity with function exp10 */ ); \
[fd4c009]	638	} else { \
	639	len2 = snprintf( &buf[len], size - len, "%s", suffixes[(exp10 - SUFFIXES_START) / 3] ); \
	640	} /* if */ \
	641	if ( f.flags.left && len + len2 < f.wd ) buf[len + len2] = ' '; \
[3c573e9]	642	} /* if */ \
	643	fmt( os, "%s", &buf[bufbeg] ); \
	644	}
	645
[94d2544]	646	#define FLOATING_POINT_FMT_IMPL( T, DFMTNP, DFMTP ) \
[85d8153]	647	forall( ostype & \| basic_ostream( ostype ) ) { \
[fd4c009]	648	static void eng( T &value, int & pc, int & exp10 ) { \
	649	exp10 = lrint( floor( log10( abs( value ) ) ) ); /* round to desired precision */ \
	650	if ( exp10 < 0 ) exp10 -= 2; \
	651	exp10 = floor( exp10, 3 ); \
	652	value *= pow( 10.0, -exp10 ); \
[0d49efb]	653	if ( pc < 0 ) pc = 3; \
[fd4c009]	654	} /* eng */ \
	655	\
[3c573e9]	656	ostype & ?\|?( ostype & os, _Ostream_Manip(T) f ) { \
[fd4c009]	657	enum { size = 48 }; \
	658	char buf[size]; \
	659	int bufbeg = 0, i, len; \
	660	\
[6c5d92f]	661	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) ); \
[fd4c009]	662	char fmtstr[sizeof(DFMTP) + 8]; /* sizeof includes '\0' */ \
[3c573e9]	663	if ( ! f.flags.pc ) memcpy( &fmtstr, DFMTNP, sizeof(DFMTNP) ); \
	664	else memcpy( &fmtstr, DFMTP, sizeof(DFMTP) ); \
[b5f17e14]	665	int star = 5; /* position before first '' / \
[3c573e9]	666	\
	667	/* Insert flags into spaces before '', from right to left. / \
	668	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
	669	if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
	670	if ( f.flags.pad0 ) { fmtstr[star] = '0'; star -= 1; } \
[b5f17e14]	671	fmtstr[star] = '\''; star -= 1; /* locale */ \
[3c573e9]	672	fmtstr[star] = '%'; \
	673	\
	674	if ( ! f.flags.pc ) { /* no precision */ \
	675	fmtstr[sizeof(DFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
[b1e614f4]	676	/* printf( "%g %d %s\n", f.val, f.wd, &fmtstr[star] ); */ \
[94d2544]	677	PRINT_WITH_DP2( os, &fmtstr[star], f.wd, f.val ) \
[3c573e9]	678	} else { /* precision */ \
	679	fmtstr[sizeof(DFMTP)-2] = f.base; /* sizeof includes '\0' */ \
	680	/* printf( "%g %d %d %s\n", f.val, f.wd, f.pc, &fmtstr[star] ); */ \
[94d2544]	681	PRINT_WITH_DP2( os, &fmtstr[star], f.wd, f.pc, f.val ) \
[3c573e9]	682	} /* if */ \
	683	return os; \
	684	} /* ?\|? */ \
[e3fea42]	685	\
[94d2544]	686	OSTYPE_VOID_IMPL( _Ostream_Manip(T) ) \
[3c573e9]	687	} // distribution
	688
[94d2544]	689	FLOATING_POINT_FMT_IMPL( double, " * ", " . " )
	690	FLOATING_POINT_FMT_IMPL( long double, " L ", " .*L " )
[3c573e9]	691
[8d321f9]	692	// ********************************* character *********************************
[3c573e9]	693
[85d8153]	694	forall( ostype & \| basic_ostream( ostype ) ) {
[3c573e9]	695	ostype & ?\|?( ostype & os, _Ostream_Manip(char) f ) {
[4f37255]	696	if ( f.base != 'c' ) { // bespoke binary/octal/hex format
[3c573e9]	697	_Ostream_Manip(unsigned char) fmtuc @= { f.val, f.wd, f.pc, f.base, {'\0'} };
	698	fmtuc.flags.pc = f.flags.pc;
	699	fmtuc.flags.nobsdp = f.flags.nobsdp;
	700	// os \| fmtuc \| nonl;
	701	(ostype &)(os \| fmtuc);
	702	return os;
	703	} // if
	704
[6c5d92f]	705	if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[3c573e9]	706
	707	#define CFMTNP "% * "
[4f37255]	708	char fmtstr[sizeof(CFMTNP)]; // sizeof includes '\0'
[3c573e9]	709	memcpy( &fmtstr, CFMTNP, sizeof(CFMTNP) );
[4f37255]	710	int star = 1; // position before first '*'
[3c573e9]	711
	712	// Insert flags into spaces before '*', from right to left.
	713	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
	714	fmtstr[star] = '%';
	715
[4f37255]	716	fmtstr[sizeof(CFMTNP)-2] = f.base; // sizeof includes '\0'
[3c573e9]	717	// printf( "%d %s\n", f.wd, &fmtstr[star] );
	718	fmt( os, &fmtstr[star], f.wd, f.val );
	719	return os;
	720	} // ?\|?
[94d2544]	721	OSTYPE_VOID_IMPL( _Ostream_Manip(char) )
[3c573e9]	722	} // distribution
	723
[8d321f9]	724	// ********************************* C string *********************************
[3c573e9]	725
[85d8153]	726	forall( ostype & \| basic_ostream( ostype ) ) {
[3c573e9]	727	ostype & ?\|?( ostype & os, _Ostream_Manip(const char *) f ) {
	728	if ( ! f.val ) return os; // null pointer ?
	729
	730	if ( f.base != 's' ) { // bespoke binary/octal/hex format
	731	_Ostream_Manip(unsigned char) fmtuc @= { 0, f.wd, f.pc, f.base, {'\0'} };
	732	fmtuc.flags.pc = f.flags.pc;
	733	fmtuc.flags.nobsdp = f.flags.nobsdp;
[ebf8ca5]	734	for ( i; 0 ~ @ : @; f.val[i] != '\0' ) {
[3c573e9]	735	fmtuc.val = f.val[i];
	736	// os \| fmtuc \| nonl;
	737	(ostype &)(os \| fmtuc);
	738	} // for
	739	return os;
	740	} // if
	741
[f5d9c37]	742	if ( f.val[0] != '\0' && // null string => no leading separator
	743	sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
[3c573e9]	744
	745	#define SFMTNP "% * "
	746	#define SFMTP "% . "
	747	char fmtstr[sizeof(SFMTP)]; // sizeof includes '\0'
	748	if ( ! f.flags.pc ) memcpy( &fmtstr, SFMTNP, sizeof(SFMTNP) );
	749	else memcpy( &fmtstr, SFMTP, sizeof(SFMTP) );
	750	int star = 1; // position before first '*'
	751
	752	// Insert flags into spaces before '*', from right to left.
	753	if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
	754	fmtstr[star] = '%';
	755
	756	if ( ! f.flags.pc ) { // no precision
	757	// printf( "%d %s\n", f.wd, &fmtstr[star] );
	758	fmtstr[sizeof(SFMTNP)-2] = f.base; // sizeof includes '\0'
	759	fmt( os, &fmtstr[star], f.wd, f.val );
	760	} else { // precision
	761	fmtstr[sizeof(SFMTP)-2] = f.base; // sizeof includes '\0'
	762	// printf( "%d %d %s\n", f.wd, f.pc, &fmtstr[star] );
	763	fmt( os, &fmtstr[star], f.wd, f.pc, f.val );
	764	} // if
[f5d9c37]	765	if ( f.val[0] == '\0' ) { nosep( os ); } // null string => no trailing separator
[3c573e9]	766	return os;
	767	} // ?\|?
[94d2544]	768	OSTYPE_VOID_IMPL( _Ostream_Manip(const char *) )
[3c573e9]	769	} // distribution
	770
	771
[8d321f9]	772	// ********************************* istream *********************************
[3c573e9]	773
[e56cfdb0]	774
[ef3ac46]	775	forall( istype & \| basic_istream( istype ) ) {
[93c2e0a]	776	istype & ?\|?( istype & is, bool & b ) {
[3ce0d440]	777	char val[6];
	778	fmt( is, "%5s", val );
	779	if ( strcmp( val, "true" ) == 0 ) b = true;
	780	else if ( strcmp( val, "false" ) == 0 ) b = false;
	781	else {
[93c2e0a]	782	fprintf( stderr, "invalid Boolean constant\n" );
[4f37255]	783	abort(); // cannot use abort stream
[3ce0d440]	784	} // if
	785	return is;
	786	} // ?\|?
[c635047]	787	ISTYPE_VOID_IMPL( bool & )
[3ce0d440]	788
	789	istype & ?\|?( istype & is, char & c ) {
[0efb269]	790	char temp;
	791	for () {
[4f37255]	792	fmt( is, "%c", &temp ); // must pass pointer through varg to fmt
[0efb269]	793	// do not overwrite parameter with newline unless appropriate
[c8371b5]	794	if ( temp != '\n' \|\| getANL$( is ) ) { c = temp; break; }
[0efb269]	795	if ( eof( is ) ) break;
	796	} // for
[3ce0d440]	797	return is;
	798	} // ?\|?
[c635047]	799	ISTYPE_VOID_IMPL( char & )
[3ce0d440]	800
	801	istype & ?\|?( istype & is, signed char & sc ) {
[3c573e9]	802	fmt( is, "%hhi", &sc );
[3ce0d440]	803	return is;
	804	} // ?\|?
[c635047]	805	ISTYPE_VOID_IMPL( signed char & )
[3ce0d440]	806
	807	istype & ?\|?( istype & is, unsigned char & usc ) {
[3c573e9]	808	fmt( is, "%hhi", &usc );
[3ce0d440]	809	return is;
	810	} // ?\|?
[c635047]	811	ISTYPE_VOID_IMPL( unsigned char & )
[3ce0d440]	812
	813	istype & ?\|?( istype & is, short int & si ) {
[3c573e9]	814	fmt( is, "%hi", &si );
[3ce0d440]	815	return is;
	816	} // ?\|?
[c635047]	817	ISTYPE_VOID_IMPL( short int & )
[3ce0d440]	818
	819	istype & ?\|?( istype & is, unsigned short int & usi ) {
[3c573e9]	820	fmt( is, "%hi", &usi );
[3ce0d440]	821	return is;
	822	} // ?\|?
[c635047]	823	ISTYPE_VOID_IMPL( unsigned short int & )
[3ce0d440]	824
	825	istype & ?\|?( istype & is, int & i ) {
[3c573e9]	826	fmt( is, "%i", &i );
[3ce0d440]	827	return is;
	828	} // ?\|?
[c635047]	829	ISTYPE_VOID_IMPL( int & )
[3ce0d440]	830
	831	istype & ?\|?( istype & is, unsigned int & ui ) {
[3c573e9]	832	fmt( is, "%i", &ui );
[3ce0d440]	833	return is;
	834	} // ?\|?
[c635047]	835	ISTYPE_VOID_IMPL( unsigned int & )
[3ce0d440]	836
	837	istype & ?\|?( istype & is, long int & li ) {
[3c573e9]	838	fmt( is, "%li", &li );
[3ce0d440]	839	return is;
	840	} // ?\|?
[c635047]	841	ISTYPE_VOID_IMPL( long int & )
[3ce0d440]	842
	843	istype & ?\|?( istype & is, unsigned long int & ulli ) {
[3c573e9]	844	fmt( is, "%li", &ulli );
[3ce0d440]	845	return is;
	846	} // ?\|?
[c635047]	847	ISTYPE_VOID_IMPL( unsigned long int & )
[3ce0d440]	848
	849	istype & ?\|?( istype & is, long long int & lli ) {
[3c573e9]	850	fmt( is, "%lli", &lli );
[3ce0d440]	851	return is;
	852	} // ?\|?
[c635047]	853	ISTYPE_VOID_IMPL( long long int & )
[3ce0d440]	854
	855	istype & ?\|?( istype & is, unsigned long long int & ulli ) {
[3c573e9]	856	fmt( is, "%lli", &ulli );
[3ce0d440]	857	return is;
	858	} // ?\|?
[c635047]	859	ISTYPE_VOID_IMPL( unsigned long long int & )
[3ce0d440]	860
[ef3ac46]	861	#if defined( __SIZEOF_INT128__ )
[e474cf09]	862	istype & ?\|?( istype & is, int128 & llli ) {
	863	return (istype &)(is \| (unsigned int128 &)llli);
	864	} // ?\|?
[c635047]	865	ISTYPE_VOID_IMPL( int128 & )
[fe68bdf]	866
[e474cf09]	867	istype & ?\|?( istype & is, unsigned int128 & ullli ) {
[fe68bdf]	868	char s[40];
	869	bool sign = false;
	870
	871	if ( fmt( is, " %[-]", s ) == 1 ) sign = true; // skip whitespace, negative sign ?
	872	// If the input is too large, the value returned is undefined. If there is no input, no value is returned
	873	if ( fmt( is, "%39[0-9]%*[0-9]", s ) == 1 ) { // take first 39 characters, ignore remaining
[e474cf09]	874	ullli = 0;
[ebf8ca5]	875	for ( i; 0 ~ @ : @; s[i] != '\0' ) {
[e474cf09]	876	ullli = ullli * 10 + s[i] - '0';
[fe68bdf]	877	} // for
[e474cf09]	878	if ( sign ) ullli = -ullli;
[fe68bdf]	879	} else if ( sign ) ungetc( is, '-' ); // return minus when no digits
	880	return is;
	881	} // ?\|?
[c635047]	882	ISTYPE_VOID_IMPL( unsigned int128 & )
[ef3ac46]	883	#endif // __SIZEOF_INT128__
[3ce0d440]	884
	885	istype & ?\|?( istype & is, float & f ) {
	886	fmt( is, "%f", &f );
	887	return is;
	888	} // ?\|?
[c635047]	889	ISTYPE_VOID_IMPL( float & )
[3ce0d440]	890
	891	istype & ?\|?( istype & is, double & d ) {
	892	fmt( is, "%lf", &d );
	893	return is;
	894	} // ?\|?
[c635047]	895	ISTYPE_VOID_IMPL( double & )
[3ce0d440]	896
	897	istype & ?\|?( istype & is, long double & ld ) {
	898	fmt( is, "%Lf", &ld );
	899	return is;
	900	} // ?\|?
[c635047]	901	ISTYPE_VOID_IMPL( long double & )
[3ce0d440]	902
	903	istype & ?\|?( istype & is, float _Complex & fc ) {
	904	float re, im;
[3c573e9]	905	fmt( is, "%f%fi", &re, &im );
[3ce0d440]	906	fc = re + im * _Complex_I;
	907	return is;
	908	} // ?\|?
[c635047]	909	ISTYPE_VOID_IMPL( float _Complex & )
[3ce0d440]	910
	911	istype & ?\|?( istype & is, double _Complex & dc ) {
	912	double re, im;
	913	fmt( is, "%lf%lfi", &re, &im );
	914	dc = re + im * _Complex_I;
	915	return is;
	916	} // ?\|?
[c635047]	917	ISTYPE_VOID_IMPL( double _Complex & )
[3ce0d440]	918
	919	istype & ?\|?( istype & is, long double _Complex & ldc ) {
	920	long double re, im;
	921	fmt( is, "%Lf%Lfi", &re, &im );
	922	ldc = re + im * _Complex_I;
	923	return is;
	924	} // ?\|?
[c635047]	925	ISTYPE_VOID_IMPL( long double _Complex & )
[3ce0d440]	926
[0f107e4]	927	istype & ?\|?( istype & is, const char fmt[] ) {
	928	fmt( is, fmt, "" );
	929	return is;
	930	} // ?\|?
	931	ISTYPE_VOID_IMPL( const char * )
[04396aa]	932
[3ce0d440]	933	// manipulators
	934	istype & ?\|?( istype & is, istype & (* manip)( istype & ) ) {
	935	return manip( is );
	936	} // ?\|?
[ff7f6d07]	937
[e474cf09]	938	void ?\|?( istype & is, istype & (* manip)( istype & ) ) {
	939	manip( is ); ends( is );
	940	} // ?\|?
[3ce0d440]	941
[200fcb3]	942	istype & nl( istype & is ) {
[3c5dee4]	943	fmt( is, "%*[^\n]" ); // ignore characters to newline
[e7a8f65]	944	if ( ! eof( is ) && getANL$( is ) ) fmt( is, "%*c" ); // read newline
[3ce0d440]	945	return is;
[200fcb3]	946	} // nl
[0efb269]	947
	948	istype & nlOn( istype & is ) {
	949	nlOn( is ); // call void returning
	950	return is;
	951	} // nlOn
	952
	953	istype & nlOff( istype & is ) {
	954	nlOff( is ); // call void returning
	955	return is;
	956	} // nlOff
[ef3ac46]	957	} // distribution
[44574f2]	958
[8d321f9]	959	// ********************************* manipulators *********************************
[3c573e9]	960
[ef3ac46]	961	forall( istype & \| basic_istream( istype ) ) {
[0f107e4]	962	istype & ?\|?( istype & is, _Istream_Cskip f ) {
	963	// printf( "skip %s %d\n", f.scanset, f.wd );
[bf1cbde]	964	if ( f.scanset ) {
	965	int nscanset = strlen(f.scanset);
	966	char fmtstr[ sizeof("%*[]") + nscanset ];
	967	int pos = 0;
	968	fmtstr[pos] = '%'; pos += 1;
	969	fmtstr[pos] = '*'; pos += 1;
	970	fmtstr[pos] = '['; pos += 1;
	971	strcpy( &fmtstr[pos], f.scanset ); pos += nscanset;
	972	fmtstr[pos] = ']'; pos += 1;
	973	fmtstr[pos] = '\0';
	974	fmt( is, fmtstr, (void*)0 ); // last arg is dummy: suppress gcc warning
	975	}
[0f107e4]	976	else for ( f.wd ) fmt( is, "%*c" );
	977	return is;
	978	}
	979	ISTYPE_VOID_IMPL( _Istream_Cskip )
[e7a8f65]	980
[0f107e4]	981	istype & ?\|?( istype & is, _Istream_Cstr f ) {
[38de914]	982	const char * scanset = f.scanset;
[0f107e4]	983	if ( f.flags.delimiter ) scanset = f.delimiter; // getline ?
[5ad2c6c7]	984
[e474cf09]	985	size_t len = 0;
[aa25216]	986	if ( scanset ) len = strlen( scanset );
[e474cf09]	987	char fmtstr[len + 16];
	988	int start = 1;
	989	fmtstr[0] = '%';
	990	if ( f.flags.ignore ) { fmtstr[1] = '*'; start += 1; }
[0f107e4]	991	// no maximum width necessary because text ignored => width is read width
[2fa0237]	992	if ( f.wd != -1 ) {
	993	// wd is buffer bytes available (for input chars + null terminator)
	994	// rwd is count of input chars
[0860d9c]	995	int rwd;
	996	if (f.flags.rwd) {
	997	verify (f.wd >= 0);
	998	rwd = f.wd;
	999	} else {
	1000	verify (f.wd >= 1);
	1001	rwd = f.wd - 1;
	1002	} // if
[2fa0237]	1003	start += sprintf( &fmtstr[start], "%d", rwd );
	1004	}
[2f34fde]	1005
[aa25216]	1006	if ( ! scanset ) {
[2f34fde]	1007	// %s, %s, %ws, %ws
[e474cf09]	1008	fmtstr[start] = 's'; fmtstr[start + 1] = '\0';
	1009	// printf( "cstr %s\n", fmtstr );
[2f34fde]	1010	} else {
	1011	// incl %[xxx], %[xxx], %w[xxx], %w[xxx]
	1012	// excl %[^xxx], %[^xxx], %w[^xxx], %w[^xxx]
	1013	fmtstr[start] = '['; start += 1;
	1014	if ( f.flags.inex ) { fmtstr[start] = '^'; start += 1; }
[aa25216]	1015	strcpy( &fmtstr[start], scanset ); // copy includes '\0'
[2f34fde]	1016	len += start;
	1017	fmtstr[len] = ']'; fmtstr[len + 1] = '\0';
	1018	// printf( "incl/excl %s\n", fmtstr );
[e474cf09]	1019	} // if
[2f34fde]	1020
[2fa0237]	1021	int check = f.wd - 2;
[8cffa4f]	1022	if (! f.flags.ignore ) {
	1023	f.s[0] = '\0';
	1024	if ( ! f.flags.rwd ) f.s[check] = '\0'; // insert sentinel
	1025	}
[686912c]	1026	len = fmt( is, fmtstr, f.s );
	1027	//fprintf( stderr, "KK %s %zd %d %c %s\n", fmtstr, len, check, f.s[check], f.s );
[aa25216]	1028
[0860d9c]	1029	if ( ! f.flags.ignore && ! f.flags.rwd && f.s[check] != '\0' ) { // sentinel overwritten ?
	1030	// buffer filled, but would we have kept going?
	1031	if ( ! eof( is ) ) {
	1032	char peek;
	1033	fmt( is, "%c", &peek );
	1034	ungetc( is, peek );
	1035	bool hasMore;
	1036	if (f.flags.delimiter) { // getline
	1037	hasMore = (peek != f.delimiter[0]);
	1038	} else if (f.scanset) { // incl/excl
	1039	bool peekMatch = strchr(f.scanset, peek) != 0p;
	1040	hasMore = f.flags.inex ? (!peekMatch) : (peekMatch);
	1041	} else { // %s
	1042	hasMore = !isspace(peek);
	1043	}
	1044	if (hasMore) throw (cstring_length){ &cstring_length_vt };
	1045	} // if
	1046	} // if
[38de914]	1047
[0f107e4]	1048	if ( f.flags.delimiter ) { // getline ?
[686912c]	1049	if ( len == 0 ) f.s[0] = '\0'; // empty read => argument unchanged => set empty
[0f107e4]	1050	if ( ! eof( is ) ) { // ignore delimiter, may not be present because of width
	1051	char delimiter;
	1052	fmt( is, "%c", &delimiter );
	1053	if ( delimiter != f.delimiter[0] ) ungetc( is, delimiter );
	1054	} // if
[686912c]	1055	} //if
[61c7239]	1056	return is;
[e474cf09]	1057	} // ?\|?
[c635047]	1058	ISTYPE_VOID_IMPL( _Istream_Cstr )
[e474cf09]	1059
	1060	istype & ?\|?( istype & is, _Istream_Char f ) {
[e7a8f65]	1061	fmt( is, "%*c" ); // argument variable unused
[e474cf09]	1062	return is;
	1063	} // ?\|?
[c635047]	1064	ISTYPE_VOID_IMPL( _Istream_Char )
[e474cf09]	1065	} // distribution
[86a8be5]	1066
[94d2544]	1067	#define INPUT_FMT_IMPL( T, CODE ) \
[ef3ac46]	1068	forall( istype & \| basic_istream( istype ) ) { \
[e474cf09]	1069	istype & ?\|?( istype & is, _Istream_Manip(T) f ) { \
	1070	enum { size = 16 }; \
	1071	char fmtstr[size]; \
	1072	if ( f.wd == -1 ) { \
	1073	snprintf( fmtstr, size, "%%%s%s", f.ignore ? "*" : "", CODE ); \
	1074	} else { \
	1075	snprintf( fmtstr, size, "%%%s%d%s", f.ignore ? "*" : "", f.wd, CODE ); \
	1076	} /* if */ \
	1077	/* printf( "%d %s %p\n", f.wd, fmtstr, &f.val ); */ \
	1078	fmt( is, fmtstr, &f.val ); \
	1079	return is; \
	1080	} /* ?\|? */ \
[c635047]	1081	ISTYPE_VOID_IMPL( _Istream_Manip(T) ) \
[e474cf09]	1082	} // distribution
[3c573e9]	1083
[94d2544]	1084	INPUT_FMT_IMPL( signed char, "hhi" )
	1085	INPUT_FMT_IMPL( unsigned char, "hhi" )
	1086	INPUT_FMT_IMPL( signed short int, "hi" )
	1087	INPUT_FMT_IMPL( unsigned short int, "hi" )
	1088	INPUT_FMT_IMPL( signed int, "i" )
	1089	INPUT_FMT_IMPL( unsigned int, "i" )
	1090	INPUT_FMT_IMPL( signed long int, "li" )
	1091	INPUT_FMT_IMPL( unsigned long int, "li" )
	1092	INPUT_FMT_IMPL( signed long long int, "lli" )
	1093	INPUT_FMT_IMPL( unsigned long long int, "lli" )
	1094
	1095	INPUT_FMT_IMPL( float, "f" )
	1096	INPUT_FMT_IMPL( double, "lf" )
	1097	INPUT_FMT_IMPL( long double, "Lf" )
[3c573e9]	1098
[ef3ac46]	1099	forall( istype & \| basic_istream( istype ) ) {
[e474cf09]	1100	istype & ?\|?( istype & is, _Istream_Manip(float _Complex) fc ) {
	1101	float re, im;
	1102	_Istream_Manip(float) fmtuc @= { re, fc.wd, fc.ignore };
	1103	is \| fmtuc;
	1104	&fmtuc.val = &im;
	1105	is \| fmtuc;
	1106	if ( ! fc.ignore ) fc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
	1107	return is;
	1108	} // ?\|?
[c635047]	1109	ISTYPE_VOID_IMPL( _Istream_Manip(float _Complex) )
[e474cf09]	1110
	1111	istype & ?\|?( istype & is, _Istream_Manip(double _Complex) dc ) {
	1112	double re, im;
	1113	_Istream_Manip(double) fmtuc @= { re, dc.wd, dc.ignore };
	1114	is \| fmtuc;
	1115	&fmtuc.val = &im;
	1116	is \| fmtuc;
	1117	if ( ! dc.ignore ) dc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
	1118	return is;
	1119	} // ?\|?
[c635047]	1120	ISTYPE_VOID_IMPL( _Istream_Manip(double _Complex) )
[e474cf09]	1121
	1122	istype & ?\|?( istype & is, _Istream_Manip(long double _Complex) ldc ) {
	1123	long double re, im;
	1124	_Istream_Manip(long double) fmtuc @= { re, ldc.wd, ldc.ignore };
	1125	is \| fmtuc;
	1126	&fmtuc.val = &im;
	1127	is \| fmtuc;
	1128	if ( ! ldc.ignore ) ldc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
	1129	return is;
	1130	} // ?\|?
[c635047]	1131	ISTYPE_VOID_IMPL( _Istream_Manip(long double _Complex) )
[e474cf09]	1132	} // distribution
[3c573e9]	1133
[2f34fde]	1134
[86bd7c1f]	1135	// Local Variables: //
	1136	// tab-width: 4 //
[084520f]	1137	// compile-command: "cfa iostream.cfa" //
[86bd7c1f]	1138	// End: //

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