source: libcfa/src/iostream.cfa@ 50be6444

Last change on this file since 50be6444 was eae8b37, checked in by JiadaL <j82liang@…>, 10 months ago

Move enum.hfa/enum.cfa to prelude

  • Property mode set to 100644
File size: 46.9 KB
Line 
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//
7// iostream.cfa --
8//
9// Author : Peter A. Buhr
10// Created On : Wed May 27 17:56:53 2015
11// Last Modified By : Peter A. Buhr
12// Last Modified On : Sun Oct 13 10:53:09 2024
13// Update Count : 2041
14//
15
16#include "iostream.hfa"
17
18#include <stdio.h>
19#include <stdbool.h> // true/false
20#include <stdint.h> // UINT64_MAX
21#include <float.h> // DBL_DIG, LDBL_DIG
22#include <complex.h> // creal, cimag
23#include <ctype.h> // isspace
24//#include <stdio.h>
25
26extern "C" {
27extern size_t strlen (const char *__s) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1)));
28extern int strcmp (const char *__s1, const char *__s2) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1, 2)));
29extern char *strcpy (char *__restrict __dest, const char *__restrict __src) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
30extern void *memcpy (void *__restrict __dest, const void *__restrict __src, size_t __n) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
31extern char *strchr(const char *str, int ch);
32} // extern "C"
33
34#include "math.hfa" // isfinite, floor, ceiling_div
35#include "bitmanip.hfa" // high1
36
37#pragma GCC visibility push(default)
38
39
40// *********************************** ostream ***********************************
41
42
43forall( ostype & | basic_ostream( ostype ) ) {
44 ostype & ?|?( ostype & os, bool b ) {
45 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
46 fmt( os, "%s", b ? "true" : "false" );
47 return os;
48 } // ?|?
49 OSTYPE_VOID_IMPL( os, bool )
50
51 ostype & ?|?( ostype & os, char c ) {
52 fmt( os, "%c", c );
53 if ( c == '\n' ) setNL$( os, true );
54 return nosep( os );
55 } // ?|?
56 OSTYPE_VOID_IMPL( os, char )
57
58 ostype & ?|?( ostype & os, signed char sc ) {
59 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
60 fmt( os, "%'hhd", sc );
61 return os;
62 } // ?|?
63 OSTYPE_VOID_IMPL( os, signed char )
64
65 ostype & ?|?( ostype & os, unsigned char usc ) {
66 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
67 fmt( os, "%'hhu", usc );
68 return os;
69 } // ?|?
70 OSTYPE_VOID_IMPL( os, unsigned char )
71
72 ostype & ?|?( ostype & os, short int si ) {
73 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
74 fmt( os, "%'hd", si );
75 return os;
76 } // ?|?
77 OSTYPE_VOID_IMPL( os, short int )
78
79 ostype & ?|?( ostype & os, unsigned short int usi ) {
80 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
81 fmt( os, "%'hu", usi );
82 return os;
83 } // ?|?
84 OSTYPE_VOID_IMPL( os, unsigned short int )
85
86 ostype & ?|?( ostype & os, int i ) {
87 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
88 fmt( os, "%'d", i );
89 return os;
90 } // ?|?
91 OSTYPE_VOID_IMPL( os, int )
92
93 ostype & ?|?( ostype & os, unsigned int ui ) {
94 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
95 fmt( os, "%'u", ui );
96 return os;
97 } // ?|?
98 OSTYPE_VOID_IMPL( os, unsigned int )
99
100 ostype & ?|?( ostype & os, long int li ) {
101 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
102 fmt( os, "%'ld", li );
103 return os;
104 } // ?|?
105 OSTYPE_VOID_IMPL( os, long int )
106
107 ostype & ?|?( ostype & os, unsigned long int uli ) {
108 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
109 fmt( os, "%'lu", uli );
110 return os;
111 } // ?|?
112 OSTYPE_VOID_IMPL( os, unsigned long int )
113
114 ostype & ?|?( ostype & os, long long int lli ) {
115 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
116 fmt( os, "%'lld", lli );
117 return os;
118 } // ?|?
119 OSTYPE_VOID_IMPL( os, long long int )
120
121 ostype & ?|?( ostype & os, unsigned long long int ulli ) {
122 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
123 fmt( os, "%'llu", ulli );
124 return os;
125 } // ?|?
126 OSTYPE_VOID_IMPL( os, unsigned long long int )
127
128 #if defined( __SIZEOF_INT128__ )
129 // UINT64_MAX 18_446_744_073_709_551_615_ULL
130 #define P10_UINT64 10_000_000_000_000_000_000_ULL // 19 zeroes
131
132 static inline void base10_128( ostype & os, unsigned int128 val ) {
133 #if defined(__GNUC__) && __GNUC_PREREQ(7,0) // gcc version >= 7
134 if ( val > P10_UINT64 ) {
135 #else
136 if ( (uint64_t)(val >> 64) != 0 || (uint64_t)val > P10_UINT64 ) { // patch gcc 5 & 6 -O3 bug
137 #endif // __GNUC_PREREQ(7,0)
138 base10_128( os, val / P10_UINT64 ); // recursive
139 fmt( os, "%.19lu", (uint64_t)(val % P10_UINT64) );
140 } else {
141 fmt( os, "%lu", (uint64_t)val );
142 } // if
143 } // base10_128
144
145 static inline void base10_128( ostype & os, int128 val ) {
146 if ( val < 0 ) {
147 fmt( os, "-" ); // leading negative sign
148 val = -val;
149 } // if
150 base10_128( os, (unsigned int128)val ); // print zero/positive value
151 } // base10_128
152
153 ostype & ?|?( ostype & os, int128 llli ) {
154 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
155 base10_128( os, llli );
156 return os;
157 } // ?|?
158 OSTYPE_VOID_IMPL( os, int128 )
159
160 ostype & ?|?( ostype & os, unsigned int128 ullli ) {
161 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
162 base10_128( os, ullli );
163 return os;
164 } // ?|?
165 OSTYPE_VOID_IMPL( os, unsigned int128 )
166 #endif // __SIZEOF_INT128__
167
168 #define PRINT_WITH_DP( os, format, val, ... ) \
169 { \
170 enum { size = 48 }; \
171 char buf[size]; \
172 int len = snprintf( buf, size, format, ##__VA_ARGS__, val ); \
173 fmt( os, "%s", buf ); \
174 if ( isfinite( val ) ) { /* if number, print decimal point when no fraction or exponent */ \
175 for ( i; 0 ~ @ ) { \
176 if ( i == len ) { fmt( os, "." ); break; } \
177 if ( buf[i] == '.' || buf[i] == 'e' || buf[i] == 'E' || \
178 buf[i] == 'p' || buf[i] == 'P' ) break; /* decimal point or scientific ? */ \
179 } /* for */ \
180 } /* if */ \
181 }
182
183 ostype & ?|?( ostype & os, float f ) {
184 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
185 PRINT_WITH_DP( os, "%'g", f );
186 return os;
187 } // ?|?
188 OSTYPE_VOID_IMPL( os, float )
189
190 ostype & ?|?( ostype & os, double d ) {
191 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
192 PRINT_WITH_DP( os, "%'.*lg", d, DBL_DIG );
193 return os;
194 } // ?|?
195 OSTYPE_VOID_IMPL( os, double )
196
197 ostype & ?|?( ostype & os, long double ld ) {
198 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
199 PRINT_WITH_DP( os, "%'.*Lg", ld, LDBL_DIG );
200 return os;
201 } // ?|?
202 OSTYPE_VOID_IMPL( os, long double )
203
204 ostype & ?|?( ostype & os, float _Complex fc ) {
205 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
206// os | crealf( fc ) | nonl;
207 PRINT_WITH_DP( os, "%'g", crealf( fc ) );
208 PRINT_WITH_DP( os, "%'+g", cimagf( fc ) );
209 fmt( os, "i" );
210 return os;
211 } // ?|?
212 OSTYPE_VOID_IMPL( os, float _Complex )
213
214 ostype & ?|?( ostype & os, double _Complex dc ) {
215 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
216// os | creal( dc ) | nonl;
217 PRINT_WITH_DP( os, "%'.*lg", creal( dc ), DBL_DIG );
218 PRINT_WITH_DP( os, "%'+.*lg", cimag( dc ), DBL_DIG );
219 fmt( os, "i" );
220 return os;
221 } // ?|?
222 OSTYPE_VOID_IMPL( os, double _Complex )
223
224 ostype & ?|?( ostype & os, long double _Complex ldc ) {
225 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
226// os | creall( ldc ) || nonl;
227 PRINT_WITH_DP( os, "%'.*Lg", creall( ldc ), LDBL_DIG );
228 PRINT_WITH_DP( os, "%'+.*Lg", cimagl( ldc ), LDBL_DIG );
229 fmt( os, "i" );
230 return os;
231 } // ?|?
232 OSTYPE_VOID_IMPL( os, long double _Complex )
233
234 ostype & ?|?( ostype & os, const char s[] ) {
235 enum { Open = 1, Close, OpenClose };
236 static const unsigned char mask[256] @= { // 256 covers all Latin-1 characters
237 // opening delimiters, no space after
238 ['('] = Open, ['['] = Open, ['{'] = Open,
239 ['='] = Open, ['$'] = Open, [(unsigned char)'£'] = Open, [(unsigned char)'¥'] = Open,
240 [(unsigned char)'¡'] = Open, [(unsigned char)'¿'] = Open, [(unsigned char)'«'] = Open,
241 // closing delimiters, no space before
242 [','] = Close, ['.'] = Close, [';'] = Close, ['!'] = Close, ['?'] = Close,
243 ['%'] = Close, [(unsigned char)'¢'] = Close, [(unsigned char)'»'] = Close,
244 [')'] = Close, [']'] = Close, ['}'] = Close,
245 // opening-closing delimiters, no space before or after
246 ['\''] = OpenClose, ['`'] = OpenClose, ['"'] = OpenClose, [':'] = OpenClose,
247 [' '] = OpenClose, ['\f'] = OpenClose, ['\n'] = OpenClose, ['\r'] = OpenClose, ['\t'] = OpenClose, ['\v'] = OpenClose, // isspace
248 }; // mask
249
250 if ( s == 0p ) { fmt( os, "%s", "0p" ); return os; } // null pointer
251 if ( s[0] == '\0' ) { nosep( os ); return os; } // null string => no leading/trailing separator
252
253 // first character IS NOT spacing or closing punctuation => add left separator
254 unsigned char ch = s[0]; // must make unsigned
255 if ( sepPrt$( os ) && mask[ ch ] != Close && mask[ ch ] != OpenClose ) {
256 fmt( os, "%s", sepGetCur$( os ) );
257 } // if
258
259 // if string starts line, must reset to determine open state because separator is off
260 sepReset$( os ); // reset separator
261
262 // last character IS spacing or opening punctuation => turn off separator for next item
263 int len = strlen( s );
264 ch = s[len - 1]; // must make unsigned
265 fmt( os, "%s", s ); // fmt resets seperator, but reset it again
266 if ( sepPrt$( os ) && mask[ ch ] != Open && mask[ ch ] != OpenClose ) {
267 sep( os );
268 } else {
269 nosep( os );
270 } // if
271 if ( ch == '\n' ) setNL$( os, true ); // check *AFTER* sepPrt$ call above as it resets NL flag
272 return os;
273// return write( os, s, len );
274 } // ?|?
275 OSTYPE_VOID_IMPL( os, const char * )
276
277// ostype & ?|?( ostype & os, const char16_t s[] ) {
278// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
279// fmt( os, "%ls", s );
280// return os;
281// } // ?|?
282
283// #if ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 ) // char32_t == wchar_t => ambiguous
284// ostype & ?|?( ostype & os, const char32_t s[] ) {
285// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
286// fmt( os, "%ls", s );
287// return os;
288// } // ?|?
289// #endif // ! ( __ARM_ARCH_ISA_ARM == 1 && __ARM_32BIT_STATE == 1 )
290
291// ostype & ?|?( ostype & os, const wchar_t s[] ) {
292// if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
293// fmt( os, "%ls", s );
294// return os;
295// } // ?|?
296
297 ostype & ?|?( ostype & os, const void * p ) {
298 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
299 fmt( os, "%p", p );
300 return os;
301 } // ?|?
302 OSTYPE_VOID_IMPL( os, const void * )
303
304 // manipulators
305 ostype & ?|?( ostype & os, ostype & (* manip)( ostype & ) ) {
306 return manip( os );
307 } // ?|?
308 void ?|?( ostype & os, ostype & (* manip)( ostype & ) ) {
309 manip( os );
310 if ( getPrt$( os ) ) ends( os ); // something printed ?
311 setPrt$( os, false ); // turn off
312 } // ?|?
313
314 ostype & nl( ostype & os ) {
315 (ostype &)(os | '\n');
316 setPrt$( os, false ); // turn off
317 setNL$( os, true );
318 return nosep( os ); // prepare for next line
319 } // nl
320
321 ostype & nonl( ostype & os ) {
322 setPrt$( os, false ); // turn off
323 return os;
324 } // nonl
325
326 ostype & nlOn( ostype & os ) {
327 nlOn( os ); // call void returning
328 return os;
329 } // nlOn
330
331 ostype & nlOff( ostype & os ) {
332 nlOff( os ); // call void returning
333 return os;
334 } // nlOff
335
336 ostype & sepVal( ostype & os ) {
337 return (ostype &)(os | sepGet( os ));
338 } // sepVal
339
340 ostype & sepTupleVal( ostype & os ) {
341 return os | sepGetTuple( os );
342 } // sepTupleVal
343
344 ostype & sep( ostype & os ) {
345 sep( os ); // call void returning
346 return os;
347 } // sep
348
349 ostype & nosep( ostype & os ) {
350 nosep( os ); // call void returning
351 return os;
352 } // nosep
353
354 ostype & sepOn( ostype & os ) {
355 sepOn( os ); // call void returning
356 return os;
357 } // sepOn
358
359 ostype & sepOff( ostype & os ) {
360 sepOff( os ); // call void returning
361 return os;
362 } // sepOff
363} // distribution
364
365// tuples
366forall( ostype &, T, Params... | writeable( T, ostype ) | { ostype & ?|?( ostype &, Params ); } ) {
367 ostype & ?|?( ostype & os, T arg, Params rest ) {
368 (ostype &)(os | arg); // print first argument
369 sepSetCur$( os, sepGetTuple( os ) ); // switch to tuple separator
370 (ostype &)(os | rest); // print remaining arguments
371 sepSetCur$( os, sepGet( os ) ); // switch to regular separator
372 return os;
373 } // ?|?
374 void ?|?( ostype & os, T arg, Params rest ) {
375 // (ostype &)(?|?( os, arg, rest )); ends( os );
376 (ostype &)(os | arg); // print first argument
377 sepSetCur$( os, sepGetTuple( os ) ); // switch to tuple separator
378 (ostype &)(os | rest); // print remaining arguments
379 sepSetCur$( os, sepGet( os ) ); // switch to regular separator
380 ends( os );
381 } // ?|?
382} // distribution
383
384// writes the range [begin, end) to the given stream
385forall( ostype &, elt_type | writeable( elt_type, ostype ), iterator_type | iterator( iterator_type, elt_type ) ) {
386 void write( iterator_type begin, iterator_type end, ostype & os ) {
387 void print( elt_type i ) { os | i; }
388 for_each( begin, end, print );
389 } // ?|?
390
391 void write_reverse( iterator_type begin, iterator_type end, ostype & os ) {
392 void print( elt_type i ) { os | i; }
393 for_each_reverse( begin, end, print );
394 } // ?|?
395} // distribution
396
397// *********************************** manipulators ***********************************
398
399// *********************************** integral ***********************************
400
401static const char * shortbin[] = { "0", "1", "10", "11", "100", "101", "110", "111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
402static const char * longbin[] = { "0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };
403
404// Default prefix for non-decimal prints is 0b, 0, 0x.
405#define INTEGRAL_FMT_IMPL( T, IFMTNP, IFMTP ) \
406forall( ostype & | basic_ostream( ostype ) ) { \
407 ostype & ?|?( ostype & os, _Ostream_Manip(T) f ) { \
408 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) ); \
409\
410 if ( f.base == 'b' || f.base == 'B' ) { /* bespoke binary format */ \
411 int bits = high1( f.val ); /* position of most significant bit */ \
412 if ( bits == 0 ) bits = 1; /* 0 value => force one bit to print */ \
413 int spaces; \
414 if ( ! f.flags.left ) { /* right justified ? */ \
415 /* Note, base prefix then zero padding or spacing then prefix. */ \
416 if ( f.flags.pc ) { \
417 spaces = f.wd - f.pc; \
418 if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
419 if ( spaces > 0 ) fmt( os, "%*s", spaces, " " ); /* space pad */ \
420 if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
421 spaces = f.pc - bits; \
422 if ( spaces > 0 ) fmt( os, "%0*d", spaces, 0 ); /* zero pad */ \
423 } else { \
424 spaces = f.wd - bits; \
425 if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
426 if ( f.flags.pad0 ) { \
427 if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
428 if ( spaces > 0 ) fmt( os, "%0*d", spaces, 0 ); /* zero pad */ \
429 } else { \
430 if ( spaces > 0 ) fmt( os, "%*s", spaces, " " ); /* space pad */ \
431 if ( ! f.flags.nobsdp ) { fmt( os, "0%c", f.base ); } \
432 } /* if */ \
433 } /* if */ \
434 } else { \
435 if ( ! f.flags.nobsdp ) fmt( os, "0%c", f.base ); \
436 if ( f.flags.pc ) { \
437 spaces = f.pc - bits; \
438 if ( spaces > 0 ) fmt( os, "%0*d", spaces, 0 ); /* zero pad */ \
439 spaces = f.wd - f.pc; \
440 } else { /* pad0 flag ignored with left flag */ \
441 spaces = f.wd - bits; \
442 } /* if */ \
443 if ( ! f.flags.nobsdp ) { spaces -= 2; } /* base prefix takes space */ \
444 } /* if */ \
445 int shift = floor( bits - 1, 4 ); \
446 typeof( f.val ) temp = f.val; \
447 fmt( os, "%s", shortbin[(temp >> shift) & 0xf] ); \
448 for () { \
449 shift -= 4; \
450 if ( shift < 0 ) break; \
451 temp = f.val; \
452 fmt( os, "%s", longbin[(temp >> shift) & 0xf] ); \
453 } /* for */ \
454 if ( f.flags.left && spaces > 0 ) fmt( os, "%*s", spaces, " " ); \
455 return os; \
456 } /* if */ \
457\
458 char fmtstr[sizeof(IFMTP)]; /* sizeof includes '\0' */ \
459 if ( ! f.flags.pc ) memcpy( &fmtstr, IFMTNP, sizeof(IFMTNP) ); \
460 else memcpy( &fmtstr, IFMTP, sizeof(IFMTP) ); \
461 int star = 5; /* position before first '*' */ \
462\
463 /* Insert flags into spaces before '*', from right to left. */ \
464 if ( ! f.flags.nobsdp ) { fmtstr[star] = '#'; star -= 1; } \
465 if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
466 if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
467 if ( f.flags.pad0 && ! f.flags.pc ) { fmtstr[star] = '0'; star -= 1; } \
468 fmtstr[star] = '\''; star -= 1; /* locale */ \
469 fmtstr[star] = '%'; \
470\
471 /* Special case printing 0 in hexadecimal as printf does not put the base. */ \
472 if ( (f.base == 'x' | f.base == 'X') && ! f.flags.nobsdp && f.val == 0 ) { \
473 fmt( os, f.base == 'x' ? "0x" : "0X" ); \
474 f.wd -= 2; \
475 if ( f.wd < 0 ) f.wd = 1; \
476 } /* if */ \
477\
478 if ( ! f.flags.pc ) { /* no precision */ \
479 fmtstr[sizeof(IFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
480 /* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
481 fmt( os, &fmtstr[star], f.wd, f.val ); \
482 } else { /* precision */ \
483 fmtstr[sizeof(IFMTP)-2] = f.base; /* sizeof includes '\0' */ \
484 /* printf( "%s %c\n", &fmtstr[star], f.base ); */ \
485 fmt( os, &fmtstr[star], f.wd, f.pc, f.val ); \
486 } /* if */ \
487 return os; \
488 } /* ?|? */ \
489 OSTYPE_VOID_IMPL( os, _Ostream_Manip(T) ) \
490} // distribution
491
492INTEGRAL_FMT_IMPL( signed char, " *hh ", " *.*hh " )
493INTEGRAL_FMT_IMPL( unsigned char, " *hh ", " *.*hh " )
494INTEGRAL_FMT_IMPL( signed short int, " *h ", " *.*h " )
495INTEGRAL_FMT_IMPL( unsigned short int, " *h ", " *.*h " )
496INTEGRAL_FMT_IMPL( signed int, " * ", " *.* " )
497INTEGRAL_FMT_IMPL( unsigned int, " * ", " *.* " )
498INTEGRAL_FMT_IMPL( signed long int, " *l ", " *.*l " )
499INTEGRAL_FMT_IMPL( unsigned long int, " *l ", " *.*l " )
500INTEGRAL_FMT_IMPL( signed long long int, " *ll ", " *.*ll " )
501INTEGRAL_FMT_IMPL( unsigned long long int, " *ll ", " *.*ll " )
502
503
504#if defined( __SIZEOF_INT128__ )
505// Default prefix for non-decimal prints is 0b, 0, 0x.
506forall( ostype & | basic_ostream( ostype ) )
507static inline void base_128( ostype & os, unsigned int128 val, unsigned int128 power, _Ostream_Manip(uint64_t) & f, unsigned int maxdig, unsigned int bits, unsigned int cnt = 0 ) {
508 int wd = 1; // f.wd is never 0 because 0 implies left-pad
509 if ( val > power ) { // subdivide value into printable 64-bit values
510 base_128( os, val / power, power, f, maxdig, bits, cnt + 1 ); // recursive
511 f.val = val % power;
512 if ( cnt == 1 && f.flags.left ) { wd = f.wd; f.wd = maxdig; } // copy f.wd and reset for printing middle chunk
513 // printf( "R val:%#lx(%lu) wd:%u pc:%u base:%c neg:%d pc:%d left:%d nobsdp:%d sign:%d pad0:%d\n",
514 // f.val, f.val, f.wd, f.pc, f.base, f.flags.neg, f.flags.pc, f.flags.left, f.flags.nobsdp, f.flags.sign, f.flags.pad0 );
515 (ostype &)(os | f);
516 if ( cnt == 1 ) {
517 if ( f.flags.left ) { wd -= maxdig; f.wd = wd < 0 ? 1 : wd; } // update and restore f.wd for printing end chunk
518 nosep( os ); // no seperator between chunks
519 } // if
520 } else { // print start chunk
521 f.val = val;
522 // f.pc is unsigned => use wd
523 if ( f.flags.pc && f.pc > maxdig * cnt ) { wd = f.pc - maxdig * cnt; f.pc = wd < 0 ? 0 : wd; }
524 else { f.flags.pc = false; f.pc = 0; }
525
526 if ( ! f.flags.left ) { // right justify
527 wd = f.wd - maxdig * cnt;
528 f.wd = wd < 0 ? 1 : wd;
529 wd = maxdig;
530 } else { // left justify
531 if ( cnt != 0 ) { // value >= 2^64 ?
532 unsigned int dig, bs = 0;
533 // compute size of prefix digits and base
534 if ( f.base == 'd' || f.base == 'u' ) { // no base prefix
535 dig = ceil( log10( f.val ) ); // use floating-point
536 if ( f.base == 'd' && (f.flags.neg || f.flags.sign) ) bs = 1; // sign ?
537 } else {
538 dig = ceiling_div( high1( f.val ), bits );
539 if ( ! f.flags.nobsdp ) { // base prefix ?
540 if ( f.base == 'o' ) {
541 // 0 prefix for octal is not added for precision with leading zero
542 if ( f.pc <= dig ) bs = 1; // 1 character prefix
543 } else bs = 2; // 2 character prefix
544 } // if
545 } // if
546 wd = f.wd - (f.pc > dig ? f.pc : dig) - bs; // precision > leading digits ?
547 if ( wd < 0 ) wd = 1;
548 f.wd = 1;
549 } // if
550 // all manipulators handled implicitly for value < 2^64
551 } // if
552 // prior checks ensure wd not negative
553
554 if ( f.flags.neg ) f.val = -f.val;
555 // printf( "L val:%#lx(%lu) wd:%u pc:%u base:%c neg:%d pc:%d left:%d nobsdp:%d sign:%d pad0:%d\n",
556 // f.val, f.val, f.wd, f.pc, f.base, f.flags.neg, f.flags.pc, f.flags.left, f.flags.nobsdp, f.flags.sign, f.flags.pad0 );
557 (ostype &)(os | f);
558
559 // remaining middle and end chunks are padded with 0s on the left
560 if ( ! f.flags.left ) { f.flags.pad0 = true; f.flags.pc = false; } // left pad with 0s
561 else { f.pc = maxdig; f.flags.pc = true; } // left pad with precision
562
563 if ( cnt != 0 ) nosep( os ); // no seperator between chunks
564 f.wd = wd; // reset f.wd for next chunk
565 f.flags.sign = false; // no leading +/- sign
566 f.flags.nobsdp = true; // no leading base prefix
567 } // if
568} // base_128
569
570#define INTEGRAL_FMT_IMPL128( T ) \
571forall( ostype & | basic_ostream( ostype ) ) { \
572 ostype & ?|?( ostype & os, _Ostream_Manip(T) f ) { \
573 _Ostream_Manip(uint64_t) fmt; \
574 fmt.[wd, pc, base, all] = f.[wd, pc, base, all]; \
575 if ( f.base == 'b' | f.base == 'B' ) { \
576 base_128( os, f.val, (unsigned int128)1 << 64, fmt, 64, 1 ); \
577 } else if ( f.base == 'o' ) { \
578 base_128( os, f.val, (unsigned int128)1 << 63, fmt, 21, 3 ); \
579 } else if ( f.base == 'd' || f.base == 'u' ) { \
580 if ( f.base == 'd' && f.val < 0 ) { f.val = -f.val; fmt.flags.neg = true; } \
581 base_128( os, f.val, (unsigned int128)10_000_000_000_000_000_000UL, fmt, 19, 0 ); \
582 } else { \
583 base_128( os, f.val, (unsigned int128)1 << 64, fmt, 16, 4 ); \
584 } /* if */ \
585 return os; \
586 } /* ?|? */ \
587 OSTYPE_VOID_IMPL( os, _Ostream_Manip(T) ) \
588} // distribution
589
590INTEGRAL_FMT_IMPL128( int128 )
591INTEGRAL_FMT_IMPL128( unsigned int128 )
592#endif // __SIZEOF_INT128__
593
594// *********************************** floating point ***********************************
595
596static const char *suffixes[] = {
597 "y", "z", "a", "f", "p", "n", "u", "m", "",
598 "K", "M", "G", "T", "P", "E", "Z", "Y"
599};
600#define SUFFIXES_START (-24) /* Smallest power for which there is a suffix defined. */
601#define SUFFIXES_END (SUFFIXES_START + (int)((sizeof(suffixes) / sizeof(char *) - 1) * 3))
602
603#define PRINT_WITH_DP2( os, format, ... ) \
604 { \
605 if ( ! f.flags.eng ) { \
606 len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
607 if ( isfinite( f.val ) && ! f.flags.nobsdp ) { /* if number, print decimal point when no fraction or exponent */ \
608 for ( i = 0; i < len && buf[i] != '.' && buf[i] != 'e' && buf[i] != 'E' && \
609 buf[i] != 'p' && buf[i] != 'P'; i += 1 ); /* decimal point or scientific ? */ \
610 if ( i == len ) { \
611 if ( ! f.flags.left ) { \
612 buf[i] = '.'; buf[i + 1] = '\0'; \
613 if ( buf[0] == ' ' ) bufbeg = 1; /* decimal point within width */ \
614 } else { \
615 for ( i = 0; i < len && buf[i] != ' '; i += 1 ); /* trailing blank ? */ \
616 buf[i] = '.'; \
617 if ( i == len ) buf[i + 1] = '\0'; \
618 } /* if */ \
619 } /* if */ \
620 } /* if */ \
621 } else { \
622 int exp10, len2; \
623 eng( f.val, f.pc, exp10 ); /* changes arguments */ \
624 /* printf( "%g %d %d %d %s\n", f.val, f.wd, f.pc, exp10, format ); */ \
625 if ( ! f.flags.left && f.wd > 1 ) { \
626 /* Exponent size: 'e', optional minus sign, number of digits: log10(0) => undefined */ \
627 f.wd -= 1 + (exp10 < 0 ? 1 : 0) + lrint( floor( exp10 == 0 ? 0 : log10( abs( exp10 ) ) ) ) + 1; \
628 if ( f.wd < 1 ) f.wd = 1; \
629 } /* if */ \
630 len = snprintf( buf, size, format, ##__VA_ARGS__ ); \
631 if ( f.flags.left ) { \
632 for ( len -= 1; len > 0 && buf[len] == ' '; len -= 1 ); \
633 len += 1; \
634 } /* if */ \
635 if ( ! f.flags.nobsdp || (exp10 < SUFFIXES_START) || (exp10 > SUFFIXES_END) ) { \
636 len2 = snprintf( &buf[len], size - len, "e%d", (int)exp10 /* ambiguity with function exp10 */ ); \
637 } else { \
638 len2 = snprintf( &buf[len], size - len, "%s", suffixes[(exp10 - SUFFIXES_START) / 3] ); \
639 } /* if */ \
640 if ( f.flags.left && len + len2 < f.wd ) buf[len + len2] = ' '; \
641 } /* if */ \
642 fmt( os, "%s", &buf[bufbeg] ); \
643 }
644
645#define FLOATING_POINT_FMT_IMPL( T, DFMTNP, DFMTP ) \
646forall( ostype & | basic_ostream( ostype ) ) { \
647 static void eng( T &value, int & pc, int & exp10 ) { \
648 exp10 = lrint( floor( log10( abs( value ) ) ) ); /* round to desired precision */ \
649 if ( exp10 < 0 ) exp10 -= 2; \
650 exp10 = floor( exp10, 3 ); \
651 value *= pow( 10.0, -exp10 ); \
652 if ( pc < 0 ) pc = 3; \
653 } /* eng */ \
654\
655 ostype & ?|?( ostype & os, _Ostream_Manip(T) f ) { \
656 enum { size = 48 }; \
657 char buf[size]; \
658 int bufbeg = 0, i, len; \
659\
660 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) ); \
661 char fmtstr[sizeof(DFMTP) + 8]; /* sizeof includes '\0' */ \
662 if ( ! f.flags.pc ) memcpy( &fmtstr, DFMTNP, sizeof(DFMTNP) ); \
663 else memcpy( &fmtstr, DFMTP, sizeof(DFMTP) ); \
664 int star = 5; /* position before first '*' */ \
665\
666 /* Insert flags into spaces before '*', from right to left. */ \
667 if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; } \
668 if ( f.flags.sign ) { fmtstr[star] = '+'; star -= 1; } \
669 if ( f.flags.pad0 ) { fmtstr[star] = '0'; star -= 1; } \
670 fmtstr[star] = '\''; star -= 1; /* locale */ \
671 fmtstr[star] = '%'; \
672\
673 if ( ! f.flags.pc ) { /* no precision */ \
674 fmtstr[sizeof(DFMTNP)-2] = f.base; /* sizeof includes '\0' */ \
675 /* printf( "%g %d %s\n", f.val, f.wd, &fmtstr[star] ); */ \
676 PRINT_WITH_DP2( os, &fmtstr[star], f.wd, f.val ) \
677 } else { /* precision */ \
678 fmtstr[sizeof(DFMTP)-2] = f.base; /* sizeof includes '\0' */ \
679 /* printf( "%g %d %d %s\n", f.val, f.wd, f.pc, &fmtstr[star] ); */ \
680 PRINT_WITH_DP2( os, &fmtstr[star], f.wd, f.pc, f.val ) \
681 } /* if */ \
682 return os; \
683 } /* ?|? */ \
684\
685 OSTYPE_VOID_IMPL( os, _Ostream_Manip(T) ) \
686} // distribution
687
688FLOATING_POINT_FMT_IMPL( double, " * ", " *.* " )
689FLOATING_POINT_FMT_IMPL( long double, " *L ", " *.*L " )
690
691// *********************************** character ***********************************
692
693forall( ostype & | basic_ostream( ostype ) ) {
694 ostype & ?|?( ostype & os, _Ostream_Manip(char) f ) {
695 if ( f.base != 'c' ) { // bespoke binary/octal/hex format
696 _Ostream_Manip(unsigned char) fmtuc @= { f.val, f.wd, f.pc, f.base, {'\0'} };
697 fmtuc.flags.pc = f.flags.pc;
698 fmtuc.flags.nobsdp = f.flags.nobsdp;
699// os | fmtuc | nonl;
700 (ostype &)(os | fmtuc);
701 return os;
702 } // if
703
704 if ( sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
705
706 #define CFMTNP "% * "
707 char fmtstr[sizeof(CFMTNP)]; // sizeof includes '\0'
708 memcpy( &fmtstr, CFMTNP, sizeof(CFMTNP) );
709 int star = 1; // position before first '*'
710
711 // Insert flags into spaces before '*', from right to left.
712 if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
713 fmtstr[star] = '%';
714
715 fmtstr[sizeof(CFMTNP)-2] = f.base; // sizeof includes '\0'
716 // printf( "%d %s\n", f.wd, &fmtstr[star] );
717 fmt( os, &fmtstr[star], f.wd, f.val );
718 return os;
719 } // ?|?
720 OSTYPE_VOID_IMPL( os, _Ostream_Manip(char) )
721} // distribution
722
723// *********************************** C string ***********************************
724
725forall( ostype & | basic_ostream( ostype ) ) {
726 ostype & ?|?( ostype & os, _Ostream_Manip(const char *) f ) {
727 if ( ! f.val ) return os; // null pointer ?
728
729 if ( f.base != 's' ) { // bespoke binary/octal/hex format
730 _Ostream_Manip(unsigned char) fmtuc @= { 0, f.wd, f.pc, f.base, {'\0'} };
731 fmtuc.flags.pc = f.flags.pc;
732 fmtuc.flags.nobsdp = f.flags.nobsdp;
733 for ( i; 0 ~ @ : @; f.val[i] != '\0' ) {
734 fmtuc.val = f.val[i];
735// os | fmtuc | nonl;
736 (ostype &)(os | fmtuc);
737 } // for
738 return os;
739 } // if
740
741 if ( f.val[0] != '\0' && // null string => no leading separator
742 sepPrt$( os ) ) fmt( os, "%s", sepGetCur$( os ) );
743
744 #define SFMTNP "% * "
745 #define SFMTP "% *.* "
746 char fmtstr[sizeof(SFMTP)]; // sizeof includes '\0'
747 if ( ! f.flags.pc ) memcpy( &fmtstr, SFMTNP, sizeof(SFMTNP) );
748 else memcpy( &fmtstr, SFMTP, sizeof(SFMTP) );
749 int star = 1; // position before first '*'
750
751 // Insert flags into spaces before '*', from right to left.
752 if ( f.flags.left ) { fmtstr[star] = '-'; star -= 1; }
753 fmtstr[star] = '%';
754
755 if ( ! f.flags.pc ) { // no precision
756 // printf( "%d %s\n", f.wd, &fmtstr[star] );
757 fmtstr[sizeof(SFMTNP)-2] = f.base; // sizeof includes '\0'
758 fmt( os, &fmtstr[star], f.wd, f.val );
759 } else { // precision
760 fmtstr[sizeof(SFMTP)-2] = f.base; // sizeof includes '\0'
761 // printf( "%d %d %s\n", f.wd, f.pc, &fmtstr[star] );
762 fmt( os, &fmtstr[star], f.wd, f.pc, f.val );
763 } // if
764 if ( f.val[0] == '\0' ) { nosep( os ); } // null string => no trailing separator
765 return os;
766 } // ?|?
767 OSTYPE_VOID_IMPL( os, _Ostream_Manip(const char *) )
768} // distribution
769
770
771// *********************************** istream ***********************************
772
773
774#define FALSE "false"
775#define TRUE "true"
776
777forall( istype & | basic_istream( istype ) ) {
778 istype & ?|?( istype & is, bool & b ) {
779 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
780 int len = -1; // len not set if no match
781 // remove optional leading whitespace at start of strings.
782 fmt( is, " " FALSE "%n", &len ); // try false
783 if ( len != sizeof( FALSE ) - 1 ) { // -1 removes null terminate
784 fmt( is, " " TRUE "%n", &len ); // try true
785 if ( len != sizeof( TRUE ) - 1 ) throwResume ExceptionInst( missing_data );
786 b = true;
787 } else {
788 b = false;
789 } // if
790 return is;
791 } // ?|?
792
793 istype & ?|?( istype & is, char & c ) {
794 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
795 char temp;
796 for () {
797 int args = fmt( is, "%c", &temp );
798 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
799 assert( args == 1 ); // if not EOF => a single character must be read
800 // do not overwrite parameter with newline unless appropriate
801 if ( temp != '\n' || getANL$( is ) ) { c = temp; break; }
802 } // for
803 return is;
804 } // ?|?
805
806 istype & ?|?( istype & is, signed char & sc ) {
807 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
808 int args = fmt( is, "%hhi", &sc ); // can be multiple characters (100)
809 if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
810 return is;
811 } // ?|?
812
813 istype & ?|?( istype & is, unsigned char & usc ) {
814 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
815 int args = fmt( is, "%hhi", &usc ); // can be multiple characters (-100)
816 if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
817 return is;
818 } // ?|?
819
820 istype & ?|?( istype & is, short int & si ) {
821 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
822 int args = fmt( is, "%hi", &si );
823 if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
824 return is;
825 } // ?|?
826
827 istype & ?|?( istype & is, unsigned short int & usi ) {
828 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
829 int args = fmt( is, "%hi", &usi );
830 if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
831 return is;
832 } // ?|?
833
834 istype & ?|?( istype & is, int & i ) {
835 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
836 int args = fmt( is, "%i", &i );
837 if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
838 return is;
839 } // ?|?
840
841 istype & ?|?( istype & is, unsigned int & ui ) {
842 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
843 int args = fmt( is, "%i", &ui );
844 if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
845 return is;
846 } // ?|?
847
848 istype & ?|?( istype & is, long int & li ) {
849 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
850 int args = fmt( is, "%li", &li );
851 if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
852 return is;
853 } // ?|?
854
855 istype & ?|?( istype & is, unsigned long int & ulli ) {
856 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
857 int args = fmt( is, "%li", &ulli );
858 if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
859 return is;
860 } // ?|?
861
862 istype & ?|?( istype & is, long long int & lli ) {
863 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
864 int args = fmt( is, "%lli", &lli );
865 if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
866 return is;
867 } // ?|?
868
869 istype & ?|?( istype & is, unsigned long long int & ulli ) {
870 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
871 int args = fmt( is, "%lli", &ulli );
872 if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
873 return is;
874 } // ?|?
875
876 #if defined( __SIZEOF_INT128__ )
877 istype & ?|?( istype & is, int128 & llli ) {
878 return (istype &)(is | (unsigned int128 &)llli);
879 } // ?|?
880
881 istype & ?|?( istype & is, unsigned int128 & ullli ) {
882 char s[40];
883 bool sign = false;
884
885 if ( fmt( is, " %[-]", s ) == 1 ) sign = true; // skip whitespace, negative sign ?
886 // If the input is too large, the value returned is undefined. If there is no input, no value is returned
887 if ( fmt( is, "%39[0-9]%*[0-9]", s ) == 1 ) { // take first 39 characters, ignore remaining
888 ullli = 0;
889 for ( i; 0 ~ @ : @; s[i] != '\0' ) {
890 ullli = ullli * 10 + s[i] - '0';
891 } // for
892 if ( sign ) ullli = -ullli;
893 } // if
894 return is;
895 } // ?|?
896 #endif // __SIZEOF_INT128__
897
898 istype & ?|?( istype & is, float & f ) {
899 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
900 int args = fmt( is, "%f", &f );
901 if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
902 return is;
903 } // ?|?
904
905 istype & ?|?( istype & is, double & d ) {
906 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
907 int args = fmt( is, "%lf", &d );
908 if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
909 return is;
910 } // ?|?
911
912 istype & ?|?( istype & is, long double & ld ) {
913 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
914 int args = fmt( is, "%Lf", &ld );
915 if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
916 return is;
917 } // ?|?
918
919 istype & ?|?( istype & is, float _Complex & fc ) {
920 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
921 float re, im;
922 int args = fmt( is, "%f%fi", &re, &im );
923 if ( ! eof( is ) && args != 2 ) throwResume ExceptionInst( missing_data );
924 fc = re + im * _Complex_I;
925 return is;
926 } // ?|?
927
928 istype & ?|?( istype & is, double _Complex & dc ) {
929 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
930 double re, im;
931 int args = fmt( is, "%lf%lfi", &re, &im );
932 if ( ! eof( is ) && args != 2 ) throwResume ExceptionInst( missing_data );
933 dc = re + im * _Complex_I;
934 return is;
935 } // ?|?
936
937 istype & ?|?( istype & is, long double _Complex & ldc ) {
938 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
939 long double re, im;
940 int args = fmt( is, "%Lf%Lfi", &re, &im );
941 if ( ! eof( is ) && args != 2 ) throwResume ExceptionInst( missing_data );
942 ldc = re + im * _Complex_I;
943 return is;
944 } // ?|?
945
946 istype & ?|?( istype & is, const char fmt[] ) { // match text
947 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
948 size_t len = strlen( fmt );
949 char fmtstr[len + 16];
950 strcpy( fmtstr, fmt ); // copy format and add %n
951 strcpy( &fmtstr[len], "%n" );
952 len = -1;
953 // scanf cursor does not move if no match
954 fmt( is, fmtstr, &len );
955 if ( len == -1 ) throwResume ExceptionInst( missing_data );
956 return is;
957 } // ?|?
958
959 // manipulators
960 istype & ?|?( istype & is, istype & (* manip)( istype & ) ) {
961 return manip( is );
962 } // ?|?
963
964 void ?|?( istype & is, istype & (* manip)( istype & ) ) {
965 manip( is );
966 } // ?|?
967
968 istype & nl( istype & is ) {
969 fmt( is, "%*[^\n]" ); // ignore characters to newline
970 if ( ! eof( is ) ) fmt( is, "%*c" ); // read newline
971 return is;
972 } // nl
973
974 istype & nlOn( istype & is ) {
975 nlOn( is ); // call void returning
976 return is;
977 } // nlOn
978
979 istype & nlOff( istype & is ) {
980 nlOff( is ); // call void returning
981 return is;
982 } // nlOff
983} // distribution
984
985// *********************************** manipulators ***********************************
986
987forall( istype & | basic_istream( istype ) ) {
988 istype & ?|?( istype & is, _Istream_Cskip f ) {
989 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
990 if ( f.scanset ) {
991 int nscanset = strlen(f.scanset);
992 char fmtstr[ sizeof("%*[]") + nscanset ];
993 int pos = 0;
994 strcpy( &fmtstr[pos], "%*[" ); pos += 3;
995 strcpy( &fmtstr[pos], f.scanset ); pos += nscanset;
996 strcpy( &fmtstr[pos], "]" );
997 fmt( is, fmtstr, "" ); // skip scanset, zero or more
998 } else {
999 char ch;
1000 for ( f.wd ) { // skip N characters
1001 int args = fmt( is, "%c", &ch );
1002 if ( ! eof( is ) && args != 1 ) throwResume ExceptionInst( missing_data );
1003 } // for
1004 } // if
1005 return is;
1006 }
1007
1008 istype & ?|?( istype & is, _Istream_Cquoted f ) with( f.cstr ) {
1009 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
1010 int args;
1011 fini: {
1012 char rfmt[5] = { ' ', delimiters[0], '%', 'n', '\0' };
1013 int len = -1; // may not be set in fmt
1014 args = fmt( is, rfmt, &len ); // remove leading whitespace and quote
1015 if ( eof( is ) || len == -1 ) break fini;
1016
1017 // Change the remainder of the read into a getline by reseting the closing delimiter.
1018 if ( delimiters[1] != '\0' ) {
1019 delimiters[0] = delimiters[1];
1020 delimiters[1] = '\0';
1021 } // if
1022 flags.delimiter = true;
1023 return is | *(_Istream_Cstr *)&f;
1024 } // fini
1025 // read failed => no pattern match => set string to null
1026 if ( ! flags.ignore && s != 0p && args == 0 ) s[0] = '\0';
1027 if ( args == 1 && eof( is ) ) { // data but scan ended at EOF
1028 clear( is ); // => reset EOF => detect again on next read
1029 } // if
1030 return is;
1031 }
1032
1033 istype & ?|?( istype & is, _Istream_Cstr f ) with( f.cstr ) {
1034 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
1035 const char * scanset;
1036 size_t nscanset = 0;
1037 if ( flags.delimiter ) scanset = delimiters; // getline ?
1038 else scanset = f.cstr.scanset;
1039 if ( scanset ) nscanset = strlen( scanset );
1040
1041 char fmtstr[nscanset + 32]; // storage for scanset and format codes
1042 fmtstr[0] = '%';
1043 int pos = 1;
1044 int args;
1045 bool check = true;
1046
1047 if ( flags.ignore ) { check = false; fmtstr[1] = '*'; pos += 1; }
1048 int rwd = wd;
1049 if ( wd != -1 ) { // => just ignore versus ignore with width
1050 // wd is buffer bytes available (for input chars + null terminator)
1051 // rwd is count of input chars
1052 // no maximum width necessary because text ignored => width is read width
1053 if ( flags.rwd ) check = false;
1054 else rwd = wd - 1;
1055 assert( rwd > 0 );
1056 pos += sprintf( &fmtstr[pos], "%d", rwd );
1057 } // if
1058
1059 if ( ! scanset ) { // %s, %*s, %ws, %*ws
1060 // fprintf( stderr, "cstr %s\n", s );
1061 strcpy( &fmtstr[pos], "s%n" );
1062 int len = 0; // may not be set in fmt
1063 if ( flags.ignore ) args = fmt( is, fmtstr, &len ); // no string argument for '*'
1064 else args = fmt( is, fmtstr, s, &len );
1065 // fprintf( stderr, "cstr %s %d %d %d\n", fmtstr, args, len, f.cstr.wd );
1066
1067 // No data read and eof is on => true eof so raise exception.
1068 if ( len == 0 && eof( is ) ) throwResume ExceptionInst( end_of_file );
1069
1070 if ( check && len >= rwd && ! eof( is ) ) { // might not fit
1071 char peek;
1072 fmt( is, "%c", &peek ); // check for whitespace terminator
1073 // fprintf( stderr, "peek %d '%c'\n", args, peek );
1074 if ( ! eof( is ) ) { // can only fail at eof
1075 ungetc( peek, is );
1076 if ( ! isspace( peek ) ) throwResume ExceptionInst( cstring_length );
1077 } // if
1078 } // if
1079 // FIX ME: CFA strings need to be modified to NOT change the argument for this case, then this can be removed.
1080 //fprintf( stderr, "cstr %d %d %d %d '%s'\n", flags.ignore, args, len, eof( is ), s );
1081 //if ( ! flags.ignore && args == 0 ) s[0]= '\0'; // read failed => no pattern match => set string to null
1082 } else {
1083 if ( flags.delimiter ) { // getline
1084 int len = 0; // may not be set in fmt
1085 if ( delimiters[2] != '\0' ) { // (quoted) read single character ?
1086 sprintf( &fmtstr[pos], "c%%n" );
1087 } else {
1088 sprintf( &fmtstr[pos], "[^%c]%%n", delimiters[0] );
1089 } // if
1090 if ( flags.ignore ) args = fmt( is, fmtstr, &len ); // no string argument for '*'
1091 else args = fmt( is, fmtstr, s, &len );
1092
1093 // No data read and eof is on => true eof so raise exception.
1094 if ( len == 0 && eof( is ) ) throwResume ExceptionInst( end_of_file );
1095
1096 if ( check && len == rwd && ! eof( is ) ) { // might not fit
1097 char peek;
1098 fmt( is, "%c", &peek ); // check for delimiter
1099 if ( ! eof( is ) ) {
1100 if ( peek != delimiters[0] ) {
1101 ungetc( peek, is );
1102 throwResume ExceptionInst( cstring_length );
1103 } // if
1104 } // if
1105 } else fmt( is, "%*c" ); // remove delimiter
1106 } else {
1107 // incl %[xxx], %*[xxx], %w[xxx], %*w[xxx]
1108 // excl %[^xxx], %*[^xxx], %w[^xxx], %*w[^xxx]
1109 sprintf( &fmtstr[pos], "[%s%s]%%n", flags.inex ? "^" : "", scanset );
1110 // fprintf( stderr, "incl/excl %s %d\n", fmtstr, wd );
1111 int len = 0; // may not be set in fmt
1112 if ( flags.ignore ) args = fmt( is, fmtstr, &len ); // no string argument for '*'
1113 else args = fmt( is, fmtstr, s, &len );
1114 // fprintf( stderr, "incl/excl %s \"%s\" %d %d %d %d %d %c\n", fmtstr, s, args, wd, len, eof( is ), check, s[wd] );
1115
1116 // No data read and eof is on => true eof so raise exception.
1117 if ( len == 0 && eof( is ) ) throwResume ExceptionInst( end_of_file );
1118
1119 if ( check && len == rwd && ! eof( is ) ) { // might not fit
1120 // fprintf( stderr, "overflow\n" );
1121 char peek;
1122 fmt( is, "%c", &peek ); // check for whitespace terminator
1123 // fprintf( stderr, "peek %d '%c'\n", args, peek );
1124 if ( ! eof( is ) ) {
1125 ungetc( peek, is );
1126 if ( flags.inex ^ strchr( scanset, peek ) != 0p ) throwResume ExceptionInst( cstring_length );
1127 } // if
1128 } // if
1129 } // if
1130 if ( ! flags.ignore && args == 0 ) s[0]= '\0'; // read failed => no pattern match => set string to null
1131 } // if
1132 if ( args == 1 && eof( is ) ) { // data but scan ended at EOF
1133 clear( is ); // => reset EOF => detect again on next read
1134 } // if
1135 return is;
1136 } // ?|?
1137} // distribution
1138
1139#define INPUT_FMT_IMPL( T, CODE ) \
1140forall( istype & | basic_istream( istype ) ) { \
1141 istype & ?|?( istype & is, _Istream_Manip(T) f ) { \
1142 enum { size = 16 }; \
1143 char fmtstr[size]; \
1144 if ( f.wd == -1 ) { \
1145 snprintf( fmtstr, size, "%%%s%s", f.ignore ? "*" : "", CODE ); \
1146 } else { \
1147 snprintf( fmtstr, size, "%%%s%d%s", f.ignore ? "*" : "", f.wd, CODE ); \
1148 } /* if */ \
1149 /* printf( "%d %s %p\n", f.wd, fmtstr, &f.val ); */ \
1150 fmt( is, fmtstr, &f.val ); \
1151 return is; \
1152 } /* ?|? */ \
1153} // distribution
1154
1155INPUT_FMT_IMPL( char, "c" )
1156INPUT_FMT_IMPL( signed char, "hhi" )
1157INPUT_FMT_IMPL( unsigned char, "hhi" )
1158INPUT_FMT_IMPL( signed short int, "hi" )
1159INPUT_FMT_IMPL( unsigned short int, "hi" )
1160INPUT_FMT_IMPL( signed int, "i" )
1161INPUT_FMT_IMPL( unsigned int, "i" )
1162INPUT_FMT_IMPL( signed long int, "li" )
1163INPUT_FMT_IMPL( unsigned long int, "li" )
1164INPUT_FMT_IMPL( signed long long int, "lli" )
1165INPUT_FMT_IMPL( unsigned long long int, "lli" )
1166
1167INPUT_FMT_IMPL( float, "f" )
1168INPUT_FMT_IMPL( double, "lf" )
1169INPUT_FMT_IMPL( long double, "Lf" )
1170
1171forall( istype & | basic_istream( istype ) ) {
1172 istype & ?|?( istype & is, _Istream_Manip(float _Complex) fc ) {
1173 float re, im;
1174 _Istream_Manip(float) fmtuc @= { re, fc.wd, fc.ignore };
1175 is | fmtuc;
1176 &fmtuc.val = &im;
1177 is | fmtuc;
1178 if ( ! fc.ignore ) fc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1179 return is;
1180 } // ?|?
1181
1182 istype & ?|?( istype & is, _Istream_Manip(double _Complex) dc ) {
1183 double re, im;
1184 _Istream_Manip(double) fmtuc @= { re, dc.wd, dc.ignore };
1185 is | fmtuc;
1186 &fmtuc.val = &im;
1187 is | fmtuc;
1188 if ( ! dc.ignore ) dc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1189 return is;
1190 } // ?|?
1191
1192 istype & ?|?( istype & is, _Istream_Manip(long double _Complex) ldc ) {
1193 long double re, im;
1194 _Istream_Manip(long double) fmtuc @= { re, ldc.wd, ldc.ignore };
1195 is | fmtuc;
1196 &fmtuc.val = &im;
1197 is | fmtuc;
1198 if ( ! ldc.ignore ) ldc.val = re + im * _Complex_I; // re/im are uninitialized for ignore
1199 return is;
1200 } // ?|?
1201} // distribution
1202
1203
1204forall( istype & | istream( istype ), E | CfaEnum( E ) | Serial( E ) )
1205istype & ?|?( istype & is, E & e ) {
1206// fprintf( stderr, "here0\n" );
1207 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
1208
1209 // Match longest input enumerator string to enumerator labels, where enumerator names are unique.
1210
1211 int N = countof( E ), lnths[N], fred = 0;
1212// printf( "N %d\n", N );
1213 int r = 0;
1214 // for ( s; E : r; 0~@ ) {
1215 for ( s; E ) { // scan string rows gathering lengths
1216 lnths[r] = strlen( label( s ) );
1217 if ( lnths[r] > fred ) fred = lnths[r];
1218// fprintf( stderr, "%s %d %d\n", label( s ), lnths[r], fred );
1219 r += 1;
1220 } // for
1221
1222 int mcol = -1; // last match column
1223 char ch, curr = '\0', prev = '\0';
1224
1225 fmt( is, " " ); // skip optional whitespace
1226 if ( eof( is ) ) throwResume ExceptionInst( end_of_file );
1227
1228 for ( c; fred ) { // scan columns of the label matix (some columns missing)
1229 int args = fmt( is, "%c", &ch ); // read character
1230// fprintf( stderr, "fmt args: %d eof: %d\n", args, eof(is) );
1231 if ( eof( is ) ) {
1232// fprintf( stderr, "Eof1\n" );
1233 if ( c == 0 ) return is; // no characters read ?
1234 clear( is ); // => read something => reset EOF => detect again on next read
1235// fprintf( stderr, "Eof2\n" );
1236 break;
1237 } // if
1238 if ( args != 1 ) throwResume ExceptionInst( missing_data ); // may be unnecessary since reading single character
1239
1240// printf( "read '%c'\n", ch );
1241 for ( r; N ) { // scan enumeration strings for matching character in current column
1242// printf( "%d %d %d\n", c, r, lnths[r] );
1243 if ( c < lnths[r] ) { // string long enough for this column check ?
1244 char match = label( fromInt( r ) )[c]; // optimization
1245// printf( "%c '%c'\n", match, ch );
1246 // Stop on first match, could be other matches.
1247 if ( (match == ch) && (c == 0 || curr == label( fromInt( r ) )[c - 1]) ) {
1248// printf( "match %d %d %d '%c' '%c' '%c' '%c' 'c'\n", c, r, lnths[r], match, ch, prev, label( fromInt( r ) )[c - 1] );
1249 mcol = c; // matching column
1250 prev = curr; // last matching character
1251 curr = ch; // current matching character
1252 break;
1253 } // if
1254 } // if
1255 } else {
1256// fprintf( stderr, "finished mcol: %d ch: '%c' curr: '%c' prev: '%c'\n", mcol, ch, curr, prev );
1257 ungetc( ch, is ); // push back last unmatching character
1258 if ( mcol == -1 ) throwResume ExceptionInst( missing_data ); // no matching character in first column
1259 break;
1260 } // for
1261// printf( "\n" );
1262// } else {
1263// fprintf( stderr, "finished2 %d\n", mcol );
1264 } // for
1265
1266 for ( c; N ) { // scan enumeration strings of length "mcol" for match
1267 if ( mcol == lnths[c] - 1 ) {
1268 char match = label( fromInt( c ) )[mcol]; // optimization
1269// printf( "finished1 mcol: %d c: %d lnth: %d match: '%c' curr: '%c' prev: '%c'\n", mcol, c, lnths[c], match, curr, prev );
1270 if ( (match == curr) && (mcol == 0 || prev == label( fromInt( c ) )[mcol - 1]) ) {
1271 e = fromInt( c );
1272 break;
1273 } // if
1274 } // if
1275 } else {
1276// fprintf( stderr, "finished3 %d\n", mcol );
1277 throwResume ExceptionInst( missing_data ); // no match in this column
1278 } // for
1279 return is;
1280}
1281
1282forall( ostype & | ostream( ostype ), E | CfaEnum( E ) ) {
1283 ostype & ?|?( ostype & os, E e ) {
1284 return os | label( e );
1285 }
1286 OSTYPE_VOID_IMPL( os, E )
1287}
1288
1289// Local Variables: //
1290// tab-width: 4 //
1291// compile-command: "cfa iostream.cfa" //
1292// End: //
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