| blob | de4d1501a9c346f53469ce43c2e2dddbcc7190dd |
3 /*
4 */
8 /*
9 2.01 $ format added
10 2.02 Coding bug in open.c repaired
11 2.03 fixed bugs in lread.c (read * with negative f-format) and lio.c
12 and lio.h (e-format conforming to spec)
13 2.04 changed open.c and err.c (fopen and freopen respectively) to
14 update to new c-library (append mode)
15 2.05 added namelist capability
16 2.06 allow internal list and namelist I/O
17 */
19 /*
20 close.c:
21 allow upper-case STATUS= values
22 endfile.c
23 create fort.nnn if unit nnn not open;
24 else if (file length == 0) use creat() rather than copy;
25 use local copy() rather than forking /bin/cp;
26 rewind, fseek to clear buffer (for no reading past EOF)
27 err.c
28 use neither setbuf nor setvbuf; make stderr buffered
29 fio.h
30 #define _bufend
31 inquire.c
32 upper case responses;
33 omit byfile test from SEQUENTIAL=
34 answer "YES" to DIRECT= for unopened file (open to debate)
35 lio.c
36 flush stderr, stdout at end of each stmt
37 space before character strings in list output only at line start
38 lio.h
39 adjust LEW, LED consistent with old libI77
40 lread.c
41 use atof()
42 allow "nnn*," when reading complex constants
43 open.c
44 try opening for writing when open for read fails, with
45 special uwrt value (2) delaying creat() to first write;
46 set curunit so error messages don't drop core;
47 no file name ==> fort.nnn except for STATUS='SCRATCH'
48 rdfmt.c
49 use atof(); trust EOF == end-of-file (so don't read past
50 end-of-file after endfile stmt)
51 sfe.c
52 flush stderr, stdout at end of each stmt
53 wrtfmt.c:
54 use upper case
55 put wrt_E and wrt_F into wref.c, use sprintf()
56 rather than ecvt() and fcvt() [more accurate on VAX]
57 */
59 /* 16 Oct. 1988: uwrt = 3 after write, rewind, so close won't zap the file. */
61 /* 10 July 1989: change _bufend to buf_end in fio.h, wsfe.c, wrtfmt.c */
63 /* 28 Nov. 1989: corrections for IEEE and Cray arithmetic */
64 /* 29 Nov. 1989: change various int return types to long for f2c */
65 /* 30 Nov. 1989: various types from f2c.h */
66 /* 6 Dec. 1989: types corrected various places */
67 /* 19 Dec. 1989: make iostat= work right for internal I/O */
68 /* 8 Jan. 1990: add rsne, wsne -- routines for handling NAMELIST */
69 /* 28 Jan. 1990: have NAMELIST read treat $ as &, general white
70 space as blank */
71 /* 27 Mar. 1990: change an = to == in rd_L(rdfmt.c) so formatted reads
72 of logical values reject letters other than fFtT;
73 have nowwriting reset cf */
74 /* 14 Aug. 1990: adjust lread.c to treat tabs as spaces in list input */
75 /* 17 Aug. 1990: adjust open.c to recognize blank='Z...' as well as
76 blank='z...' when reopening an open file */
77 /* 30 Aug. 1990: prevent embedded blanks in list output of complex values;
78 omit exponent field in list output of values of
79 magnitude between 10 and 1e8; prevent writing stdin
80 and reading stdout or stderr; don't close stdin, stdout,
81 or stderr when reopening units 5, 6, 0. */
82 /* 18 Sep. 1990: add component udev to unit and consider old == new file
83 iff uinode and udev values agree; use stat rather than
84 access to check existence of file (when STATUS='OLD')*/
85 /* 2 Oct. 1990: adjust rewind.c so two successive rewinds after a write
86 don't clobber the file. */
87 /* 9 Oct. 1990: add #include "fcntl.h" to endfile.c, err.c, open.c;
88 adjust g_char in util.c for segmented memories. */
89 /* 17 Oct. 1990: replace abort() and _cleanup() with calls on
90 sig_die(...,1) (defined in main.c). */
91 /* 5 Nov. 1990: changes to open.c: complain if new= is specified and the
92 file already exists; allow file= to be omitted in open stmts
93 and allow status='replace' (Fortran 90 extensions). */
94 /* 11 Dec. 1990: adjustments for POSIX. */
95 /* 15 Jan. 1991: tweak i_ungetc in rsli.c to allow reading from
96 strings in read-only memory. */
97 /* 25 Apr. 1991: adjust namelist stuff to work with f2c -i2 */
98 /* 26 Apr. 1991: fix some bugs with NAMELIST read of multi-dim. arrays */
99 /* 16 May 1991: increase LEFBL in lio.h to bypass NeXT bug */
100 /* 17 Oct. 1991: change type of length field in sequential unformatted
101 records from int to long (for systems where sizeof(int)
102 can vary, depending on the compiler or compiler options). */
103 /* 14 Nov. 1991: change uint to Uint in fmt.h, rdfmt.c, wrtfmt.c. */
104 /* 25 Nov. 1991: change uint to Uint in lwrite.c; change sizeof(int) to
105 sizeof(uioint) in fseeks in sue.c (missed on 17 Oct.). */
106 /* 1 Dec. 1991: uio.c: add test for read failure (seq. unformatted reads);
107 adjust an error return from EOF to off end of record */
108 /* 12 Dec. 1991: rsli.c: fix bug with internal list input that caused
109 the last character of each record to be ignored.
110 iio.c: adjust error message in internal formatted
111 input from "end-of-file" to "off end of record" if
112 the format specifies more characters than the
113 record contains. */
114 /* 17 Jan. 1992: lread.c, rsne.c: in list and namelist input,
115 treat "r* ," and "r*," alike (where r is a
116 positive integer constant), and fix a bug in
117 handling null values following items with repeat
118 counts (e.g., 2*1,,3); for namelist reading
119 of a numeric array, allow a new name-value subsequence
120 to terminate the current one (as though the current
121 one ended with the right number of null values).
122 lio.h, lwrite.c: omit insignificant zeros in
123 list and namelist output. To get the old
124 behavior, compile with -DOld_list_output . */
125 /* 18 Jan. 1992: make list output consistent with F format by
126 printing .1 rather than 0.1 (introduced yesterday). */
127 /* 3 Feb. 1992: rsne.c: fix namelist read bug that caused the
128 character following a comma to be ignored. */
129 /* 19 May 1992: adjust iio.c, ilnw.c, rdfmt.c and rsli.c to make err=
130 work with internal list and formatted I/O. */
131 /* 18 July 1992: adjust rsne.c to allow namelist input to stop at
132 an & (e.g. &end). */
133 /* 23 July 1992: switch to ANSI prototypes unless KR_headers is #defined ;
134 recognize Z format (assuming 8-bit bytes). */
135 /* 14 Aug. 1992: tweak wrt_E in wref.c to avoid -NaN */
136 /* 23 Oct. 1992: Supply missing l_eof = 0 assignment to s_rsne() in rsne.c
137 (so end-of-file on other files won't confuse namelist
138 reads of external files). Prepend f__ to external
139 names that are only of internal interest to lib[FI]77. */
140 /* 1 Feb. 1993: backspace.c: fix bug that bit when last char of 2nd
141 buffer == '\n'.
142 endfile.c: guard against tiny L_tmpnam; close and reopen
143 files in t_runc().
144 lio.h: lengthen LINTW (buffer size in lwrite.c).
145 err.c, open.c: more prepending of f__ (to [rw]_mode). */
146 /* 5 Feb. 1993: tweaks to NAMELIST: rsne.c: ? prints the namelist being
147 sought; namelists of the wrong name are skipped (after
148 an error message; xwsne.c: namelist writes have a
149 newline before each new variable.
150 open.c: ACCESS='APPEND' positions sequential files
151 at EOF (nonstandard extension -- that doesn't require
152 changing data structures). */
153 /* 9 Feb. 1993: Change some #ifdef MSDOS lines to #ifdef NON_UNIX_STDIO.
154 err.c: under NON_UNIX_STDIO, avoid close(creat(name,0666))
155 when the unit has another file descriptor for name. */
156 /* 4 March 1993: err.c, open.c: take declaration of fdopen from rawio.h;
157 open.c: always give f__w_mode[] 4 elements for use
158 in t_runc (in endfile.c -- for change of 1 Feb. 1993). */
159 /* 6 March 1993: uio.c: adjust off-end-of-record test for sequential
160 unformatted reads to respond to err= rather than end=. */
161 /* 12 March 1993: various tweaks for C++ */
162 /* 6 April 1993: adjust error returns for formatted inputs to flush
163 the current input line when err=label is specified.
164 To restore the old behavior (input left mid-line),
165 either adjust the #definition of errfl in fio.h or
166 omit the invocation of f__doend in err__fl (in err.c). */
167 /* 23 June 1993: iio.c: fix bug in format reversions for internal writes. */
168 /* 5 Aug. 1993: lread.c: fix bug in handling repetition counts for
169 logical data (during list or namelist input).
170 Change struct f__syl to struct syl (for buggy compilers). */
171 /* 7 Aug. 1993: lread.c: fix bug in namelist reading of incomplete
172 logical arrays. */
173 /* 9 Aug. 1993: lread.c: fix bug in namelist reading of an incomplete
174 array of numeric data followed by another namelist
175 item whose name starts with 'd', 'D', 'e', or 'E'. */
176 /* 8 Sept. 1993: open.c: protect #include "sys/..." with
177 #ifndef NON_UNIX_STDIO; Version date not changed. */
178 /* 10 Nov. 1993: backspace.c: add nonsense for #ifdef MSDOS */
179 /* 8 Dec. 1993: iio.c: adjust internal formatted reads to treat
180 short records as though padded with blanks
181 (rather than causing an "off end of record" error). */
182 /* 22 Feb. 1994: lread.c: check that realloc did not return NULL. */
183 /* 6 June 1994: Under NON_UNIX_STDIO, use binary mode for direct
184 formatted files (avoiding any confusion regarding \n). */
185 /* 5 July 1994: Fix bug (introduced 6 June 1994?) in reopening files
186 under NON_UNIX_STDIO. */
187 /* 6 July 1994: wref.c: protect with #ifdef GOOD_SPRINTF_EXPONENT an
188 optimization that requires exponents to have 2 digits
189 when 2 digits suffice.
190 lwrite.c wsfe.c (list and formatted external output):
191 omit ' ' carriage-control when compiled with
192 -DOMIT_BLANK_CC . Off-by-one bug fixed in character
193 count for list output of character strings.
194 Omit '.' in list-directed printing of Nan, Infinity. */
195 /* 12 July 1994: wrtfmt.c: under G11.4, write 0. as " .0000 " rather
196 than " .0000E+00". */
197 /* 3 Aug. 1994: lwrite.c: do not insert a newline when appending an
198 oversize item to an empty line. */
199 /* 12 Aug. 1994: rsli.c rsne.c: fix glitch (reset nml_read) that kept
200 ERR= (in list- or format-directed input) from working
201 after a NAMELIST READ. */
202 /* 7 Sept. 1994: typesize.c: adjust to allow types LOGICAL*1, LOGICAL*2,
203 INTEGER*1, and (under -DAllow_TYQUAD) INTEGER*8
204 in NAMELISTs. */
205 /* 6 Oct. 1994: util.c: omit f__mvgbt, as it is never used. */
206 /* 2 Nov. 1994: add #ifdef ALWAYS_FLUSH logic. */
207 /* 26 Jan. 1995: wref.c: fix glitch in printing the exponent of 0 when
208 GOOD_SPRINTF_EXPONENT is not #defined. */
209 /* 24 Feb. 1995: iio.c: z_getc: insert (unsigned char *) to allow
210 internal reading of characters with high-bit set
211 (on machines that sign-extend characters). */
212 /* 14 March 1995:lread.c and rsfe.c: adjust s_rsle and s_rsfe to
213 check for end-of-file (to prevent infinite loops
214 with empty read statements). */
215 /* 26 May 1995: iio.c: z_wnew: fix bug in handling T format items
216 in internal writes whose last item is written to
217 an earlier position than some previous item. */
218 /* 29 Aug. 1995: backspace.c: adjust MSDOS logic. */
219 /* 6 Sept. 1995: Adjust namelist input to treat a subscripted name
220 whose subscripts do not involve colons similarly
221 to the name without a subscript: accept several
222 values, stored in successive elements starting at
223 the indicated subscript. Adjust namelist output
224 to quote character strings (avoiding confusion with
225 arrays of character strings). Adjust f_init calls
226 for people who don't use libF77's main(); now open and
227 namelist read statements invoke f_init if needed. */
228 /* 7 Sept. 1995: Fix some bugs with -DAllow_TYQUAD (for integer*8).
229 Add -DNo_Namelist_Comments lines to rsne.c. */
230 /* 5 Oct. 1995: wrtfmt.c: fix bug with t editing (f__cursor was not
231 always zeroed in mv_cur). */
232 /* 11 Oct. 1995: move defs of f__hiwater, f__svic, f__icptr from wrtfmt.c
233 to err.c */
234 /* 15 Mar. 1996: lread.c, rsfe.c: honor END= in READ stmt with empty iolist */
236 /* 13 May 1996: add ftell_.c and fseek_.c */
237 /* 9 June 1996: Adjust rsli.c and lread.c so internal list input with
238 too few items in the input string will honor end= . */
239 /* 12 Sept. 1995:fmtlib.c: fix glitch in printing the most negative integer. */
240 /* 25 Sept. 1995:fmt.h: for formatted writes of negative integer*1 values,
241 make ic signed on ANSI systems. If formatted writes of
242 integer*1 values trouble you when using a K&R C compiler,
243 switch to an ANSI compiler or use a compiler flag that
244 makes characters signed. */
245 /* 9 Dec. 1996: d[fu]e.c, err.c: complain about non-positive rec=
246 in direct read and write statements.
247 ftell_.c: change param "unit" to "Unit" for -DKR_headers. */
248 /* 26 Feb. 1997: ftell_.c: on systems that define SEEK_SET, etc., use
249 SEEK_SET, SEEK_CUR, SEEK_END for *whence = 0, 1, 2. */
250 /* 7 Apr. 1997: fmt.c: adjust to complain at missing numbers in formats
251 (but still treat missing ".nnn" as ".0"). */
252 /* 11 Apr. 1997: err.c: attempt to make stderr line buffered rather
253 than fully buffered. (Buffering is needed for format
254 items T and TR.) */
255 /* 27 May 1997: ftell_.c: fix typo (that caused the third argument to be
256 treated as 2 on some systems). */
257 /* 5 Aug. 1997: lread.c: adjust to accord with a change to the Fortran 8X
258 draft (in 1990 or 1991) that rescinded permission to elide
259 quote marks in namelist input of character data; compile
260 with -DF8X_NML_ELIDE_QUOTES to get the old behavior.
261 wrtfmt.o: wrt_G: tweak to print the right number of 0's
262 for zero under G format. */
263 /* 16 Aug. 1997: iio.c: fix bug in internal writes to an array of character
264 strings that sometimes caused one more array element than
265 required by the format to be blank-filled. Example:
266 format(1x). */
267 /* 16 Sept. 1997:fmt.[ch] rdfmt.c wrtfmt.c: tweak struct syl for machines
268 with 64-bit pointers and 32-bit ints that did not 64-bit
269 align struct syl (e.g., Linux on the DEC Alpha). */
270 /* 19 Jan. 1998: backspace.c: for b->ufmt==0, change sizeof(int) to
271 sizeof(uiolen). On machines where this would make a
272 difference, it is best for portability to compile libI77 with
273 -DUIOLEN_int (which will render the change invisible). */
274 /* 4 March 1998: open.c: fix glitch in comparing file names under
275 -DNON_UNIX_STDIO */
276 /* 17 March 1998: endfile.c, open.c: acquire temporary files from tmpfile(),
277 unless compiled with -DNON_ANSI_STDIO, which uses mktemp().
278 New buffering scheme independent of NON_UNIX_STDIO for
279 handling T format items. Now -DNON_UNIX_STDIO is no
280 longer be necessary for Linux, and libf2c no longer
281 causes stderr to be buffered -- the former setbuf or
282 setvbuf call for stderr was to make T format items work.
283 open.c: use the Posix access() function to check existence
284 or nonexistence of files, except under -DNON_POSIX_STDIO,
285 where trial fopen calls are used. */
286 /* 5 April 1998: wsfe.c: make $ format item work: this was lost in the
287 changes of 17 March 1998. */
288 /* 28 May 1998: backspace.c dfe.c due.c iio.c lread.c rsfe.c sue.c wsfe.c:
289 set f__curunit sooner so various error messages will
290 correctly identify the I/O unit involved. */
291 /* 17 June 1998: lread.c: unless compiled with
292 ALLOW_FLOAT_IN_INTEGER_LIST_INPUT #defined, treat
293 floating-point numbers (containing either a decimal point
294 or an exponent field) as errors when they appear as list
295 input for integer data. */
296 /* 7 Sept. 1998: move e_wdfe from sfe.c to dfe.c, where it was originally.
297 Why did it ever move to sfe.c? */
298 /* 2 May 1999: open.c: set f__external (to get "external" versus "internal"
299 right in the error message if we cannot open the file).
300 err.c: cast a pointer difference to (int) for %d.
301 rdfmt.c: omit fixed-length buffer that could be overwritten
302 by formats Inn or Lnn with nn > 83. */
303 /* 3 May 1999: open.c: insert two casts for machines with 64-bit longs. */
304 /* 18 June 1999: backspace.c: allow for b->ufd changing in t_runc */
305 /* 27 June 1999: rsne.c: fix bug in namelist input: a misplaced increment */
306 /* could cause wrong array elements to be assigned; e.g., */
307 /* "&input k(5)=10*1 &end" assigned k(5) and k(15..23) */
308 /* 15 Nov. 1999: endfile.c: set state to writing (b->uwrt = 1) when an */
309 /* endfile statement requires copying the file. */
310 /* (Otherwise an immediately following rewind statement */
311 /* could make the file appear empty.) Also, supply a */
312 /* missing (long) cast in the sprintf call. */
313 /* sfe.c: add #ifdef ALWAYS_FLUSH logic, for formatted I/O: */
314 /* Compiling libf2c with -DALWAYS_FLUSH should prevent losing */
315 /* any data in buffers should the program fault. It also */
316 /* makes the program run more slowly. */
317 /* 20 April 2000: rsne.c, xwsne.c: tweaks that only matter if ftnint and */
318 /* ftnlen are of different fundamental types (different numbers */
319 /* of bits). Since these files will not compile when this */
320 /* change matters, the above VERSION string remains unchanged. */
321 /* 4 July 2000: adjustments to permit compilation by C++ compilers; */
322 /* VERSION string remains unchanged. NOT APPLIED FOR G77 */
323 /* 5 Dec. 2000: lread.c: under namelist input, when reading a logical array, */
324 /* treat Tstuff= and Fstuff= as new assignments rather than as */
325 /* logical constants. */
329 /* Changes for GNU Fortran (g77) version of libf2c: */
331 /* 17 June 1997: detect recursive I/O and call f__fatal explaining it. */
333 #include <stdio.h>
335 void
337 {
340 }