Bug Summary

File:src/nrrd/formatText.c
Location:line 207, column 3
Description:Value stored to 'flArr' is never read

Annotated Source Code

1/*
2 Teem: Tools to process and visualize scientific data and images .
3 Copyright (C) 2013, 2012, 2011, 2010, 2009 University of Chicago
4 Copyright (C) 2008, 2007, 2006, 2005 Gordon Kindlmann
5 Copyright (C) 2004, 2003, 2002, 2001, 2000, 1999, 1998 University of Utah
6
7 This library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public License
9 (LGPL) as published by the Free Software Foundation; either
10 version 2.1 of the License, or (at your option) any later version.
11 The terms of redistributing and/or modifying this software also
12 include exceptions to the LGPL that facilitate static linking.
13
14 This library is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
18
19 You should have received a copy of the GNU Lesser General Public License
20 along with this library; if not, write to Free Software Foundation, Inc.,
21 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22*/
23
24#include "nrrd.h"
25#include "privateNrrd.h"
26
27static int
28_nrrdFormatText_available(void) {
29
30 return AIR_TRUE1;
31}
32
33static int
34_nrrdFormatText_nameLooksLike(const char *fname) {
35
36 return (airEndsWith(fname, NRRD_EXT_TEXT".txt")
37 || airEndsWith(fname, ".text")
38 || airEndsWith(fname, ".ascii"));
39}
40
41static int
42_nrrdFormatText_fitsInto(const Nrrd *nrrd, const NrrdEncoding *encoding,
43 int useBiff) {
44 static const char me[]="_nrrdFormatText_fitsInto";
45
46 AIR_UNUSED(encoding)(void)(encoding);
47 /* encoding ignored- always ascii */
48 if (!(1 == nrrd->dim || 2 == nrrd->dim)) {
49 biffMaybeAddf(useBiff, NRRDnrrdBiffKey, "%s: dimension is %d, not 1 or 2",
50 me, nrrd->dim);
51 return AIR_FALSE0;
52 }
53 if (nrrdTypeBlock == nrrd->type) {
54 biffMaybeAddf(useBiff, NRRDnrrdBiffKey, "%s: can't save blocks to plain text", me);
55 return AIR_FALSE0;
56 }
57 /* NOTE: type of array not guaranteed to survive */
58 return AIR_TRUE1;
59}
60
61static int
62_nrrdFormatText_contentStartsLike(NrrdIoState *nio) {
63 float oneFloat;
64
65 return (NRRD_COMMENT_CHAR'#' == nio->line[0]
66 || airParseStrF(&oneFloat, nio->line, _nrrdTextSep, 1));
67}
68
69static int
70_nrrdFormatText_read(FILE *file, Nrrd *nrrd, NrrdIoState *nio) {
71 static const char me[]="_nrrdFormatText_read";
72 const char *fs;
73 char *errS;
74 unsigned int plen, llen;
75 size_t line, sx, sy, size[NRRD_DIM_MAX16];
76 int nret, fidx, settwo = 0, gotOnePerAxis = AIR_FALSE0;
77 /* fl: first line, al: all lines */
78 airArray *flArr, *alArr;
79 float *fl, *al, oneFloat;
80 airPtrPtrUnion appu;
81
82 if (!_nrrdFormatText_contentStartsLike(nio)) {
83 biffAddf(NRRDnrrdBiffKey, "%s: this doesn't look like a %s file", me,
84 nrrdFormatText->name);
85 return 1;
86 }
87
88 /* this goofiness is just to leave the nrrd as we found it
89 (specifically, nrrd->dim) when we hit an error */
90#define UNSETTWOif (settwo) nrrd->dim = settwo if (settwo) nrrd->dim = settwo
91
92 /* we only get here with the first line already in nio->line */
93 line = 1;
94 llen = AIR_CAST(unsigned int, strlen(nio->line))((unsigned int)(strlen(nio->line)));
95
96 if (0 == nrrd->dim) {
97 settwo = nrrd->dim;
98 nrrd->dim = 2;
99 }
100 /* first, we get through comments */
101 while (NRRD_COMMENT_CHAR'#' == nio->line[0]) {
102 nio->pos = 1;
103 nio->pos += AIR_CAST(int, strspn(nio->line + nio->pos, _nrrdFieldSep))((int)(strspn(nio->line + nio->pos, _nrrdFieldSep)));
104 fidx = _nrrdReadNrrdParseField(nio, AIR_FALSE0);
105 /* could we parse anything? */
106 if (!fidx) {
107 /* being unable to parse a comment as a nrrd field is not
108 any kind of error */
109 goto plain;
110 }
111 if (nrrdField_comment == fidx) {
112 fidx = 0;
113 goto plain;
114 }
115 fs = airEnumStr(nrrdField, fidx);
116 if (!_nrrdFieldValidInText[fidx]) {
117 if (1 <= nrrdStateVerboseIO) {
118 fprintf(stderr__stderrp, "(%s: field \"%s\" not allowed in plain text "
119 "--> plain comment)\n", me, fs);
120 }
121 fidx = 0;
122 goto plain;
123 }
124 /* when reading plain text, we simply ignore repetitions of a field */
125 if ((nrrdField_keyvalue == fidx || !nio->seen[fidx])
126 && nrrdFieldInfoParse[fidx](file, nrrd, nio, AIR_TRUE1)) {
127 errS = biffGetDone(NRRDnrrdBiffKey);
128 if (1 <= nrrdStateVerboseIO) {
129 fprintf(stderr__stderrp, "%s: %s", me, errS);
130 fprintf(stderr__stderrp, "(%s: malformed field \"%s\" --> plain comment)\n",
131 me, fs);
132 }
133 if (nrrdField_dimension == fidx) {
134 /* "# dimension: 0" lead nrrd->dim being set to 0 */
135 nrrd->dim = 2;
136 }
137 free(errS);
138 fidx = 0;
139 goto plain;
140 }
141 if (nrrdField_dimension == fidx) {
142 if (!(1 == nrrd->dim || 2 == nrrd->dim)) {
143 if (1 <= nrrdStateVerboseIO) {
144 fprintf(stderr__stderrp, "(%s: plain text dimension can only be 1 or 2; "
145 "resetting to 2)\n", me);
146 }
147 nrrd->dim = 2;
148 }
149 if (1 == nrrd->dim && gotOnePerAxis) {
150 fprintf(stderr__stderrp, "(%s: already parsed per-axis field, can't reset "
151 "dimension to 1; resetting to 2)\n", me);
152 nrrd->dim = 2;
153 }
154 }
155 if (_nrrdFieldOnePerAxis[fidx]) {
156 gotOnePerAxis = AIR_TRUE1;
157 }
158 nio->seen[fidx] = AIR_TRUE1;
159 plain:
160 if (!fidx) {
161 if (nrrdCommentAdd(nrrd, nio->line + 1)) {
162 biffAddf(NRRDnrrdBiffKey, "%s: couldn't add comment", me);
163 UNSETTWOif (settwo) nrrd->dim = settwo; return 1;
164 }
165 }
166 if (_nrrdOneLine(&llen, nio, file)) {
167 biffAddf(NRRDnrrdBiffKey, "%s: error getting a line", me);
168 UNSETTWOif (settwo) nrrd->dim = settwo; return 1;
169 }
170 if (!llen) {
171 biffAddf(NRRDnrrdBiffKey, "%s: hit EOF before any numbers parsed", me);
172 UNSETTWOif (settwo) nrrd->dim = settwo; return 1;
173 }
174 line++;
175 }
176
177 /* we supposedly have a line of numbers, see how many there are */
178 if (!airParseStrF(&oneFloat, nio->line, _nrrdTextSep, 1)) {
179 char stmp[AIR_STRLEN_SMALL(128+1)];
180 biffAddf(NRRDnrrdBiffKey, "%s: couldn't parse a single number on line %s", me,
181 airSprintSize_t(stmp, line));
182 UNSETTWOif (settwo) nrrd->dim = settwo; return 1;
183 }
184 appu.f = &fl;
185 flArr = airArrayNew(appu.v, NULL((void*)0), sizeof(float), _NRRD_TEXT_INCR1024);
186 if (!flArr) {
187 biffAddf(NRRDnrrdBiffKey, "%s: couldn't create array for first line values", me);
188 UNSETTWOif (settwo) nrrd->dim = settwo; return 1;
189 }
190 for (sx=1; 1; sx++) {
191 /* there is obviously a limit to the number of numbers that can
192 be parsed from a single finite line of input text */
193 airArrayLenSet(flArr, AIR_CAST(unsigned int, sx)((unsigned int)(sx)));
194 if (!flArr->data) {
195 char stmp[AIR_STRLEN_SMALL(128+1)];
196 biffAddf(NRRDnrrdBiffKey, "%s: couldn't alloc space for %s values", me,
197 airSprintSize_t(stmp, sx));
198 UNSETTWOif (settwo) nrrd->dim = settwo; return 1;
199 }
200 if (sx > airParseStrF(fl, nio->line, _nrrdTextSep, AIR_CAST(unsigned int, sx)((unsigned int)(sx)))) {
201 /* We asked for sx ints and got less. We know that we successfully
202 got one value, so we did succeed in parsing sx-1 values */
203 sx--;
204 break;
205 }
206 }
207 flArr = airArrayNuke(flArr);
Value stored to 'flArr' is never read
208 if (1 == nrrd->dim && 1 != sx) {
209 char stmp[AIR_STRLEN_SMALL(128+1)];
210 biffAddf(NRRDnrrdBiffKey, "%s: wanted 1-D nrrd, but got %s values on 1st line", me,
211 airSprintSize_t(stmp, sx));
212 UNSETTWOif (settwo) nrrd->dim = settwo; return 1;
213 }
214 /* else sx == 1 when nrrd->dim == 1 */
215
216 /* now see how many more lines there are */
217 appu.f = &al;
218 alArr = airArrayNew(appu.v, NULL((void*)0), sx*sizeof(float), _NRRD_TEXT_INCR1024);
219 if (!alArr) {
220 biffAddf(NRRDnrrdBiffKey, "%s: couldn't create data buffer", me);
221 UNSETTWOif (settwo) nrrd->dim = settwo; return 1;
222 }
223 sy = 0;
224 while (llen) {
225 airArrayLenIncr(alArr, 1);
226 if (!alArr->data) {
227 char stmp[AIR_STRLEN_SMALL(128+1)];
228 biffAddf(NRRDnrrdBiffKey, "%s: couldn't create scanline of %s values", me,
229 airSprintSize_t(stmp, sx));
230 UNSETTWOif (settwo) nrrd->dim = settwo; return 1;
231 }
232 plen = airParseStrF(al + sy*sx, nio->line, _nrrdTextSep, AIR_CAST(unsigned int, sx)((unsigned int)(sx)));
233 if (sx > plen) {
234 char stmp1[AIR_STRLEN_SMALL(128+1)], stmp2[AIR_STRLEN_SMALL(128+1)];
235 biffAddf(NRRDnrrdBiffKey, "%s: could only parse %d values (not %s) on line %s",
236 me, plen, airSprintSize_t(stmp1, sx),
237 airSprintSize_t(stmp2, line));
238 UNSETTWOif (settwo) nrrd->dim = settwo; return 1;
239 }
240 sy++;
241 line++;
242 if (_nrrdOneLine(&llen, nio, file)) {
243 biffAddf(NRRDnrrdBiffKey, "%s: error getting a line", me);
244 UNSETTWOif (settwo) nrrd->dim = settwo; return 1;
245 }
246 }
247 /*
248 fprintf(stderr, "%s: nrrd->dim = %d, sx = %d; sy = %d\n",
249 me, nrrd->dim, sx, sy);
250 */
251
252 if (!( 1 == nrrd->dim || 2 == nrrd->dim )) {
253 fprintf(stderr__stderrp, "%s: PANIC about to save, but dim = %d\n", me, nrrd->dim);
254 exit(1);
255 }
256 if (1 == nrrd->dim) {
257 size[0] = sy;
258 } else {
259 size[0] = sx;
260 size[1] = sy;
261 }
262
263 if (nio->oldData
264 && nio->oldDataSize == (size_t)(nrrdTypeSize[nrrdTypeFloat]*sx*sy)) {
265 nret = nrrdWrap_nva(nrrd, nio->oldData, nrrdTypeFloat, nrrd->dim, size);
266 } else {
267 nret = nrrdMaybeAlloc_nva(nrrd, nrrdTypeFloat, nrrd->dim, size);
268 }
269 if (nret) {
270 biffAddf(NRRDnrrdBiffKey, "%s: couldn't create nrrd for plain text data", me);
271 UNSETTWOif (settwo) nrrd->dim = settwo; return 1;
272 }
273 memcpy(nrrd->data, al, sx*sy*sizeof(float))__builtin___memcpy_chk (nrrd->data, al, sx*sy*sizeof(float
), __builtin_object_size (nrrd->data, 0));
274
275 alArr = airArrayNuke(alArr);
276 return 0;
277}
278
279static int
280_nrrdFormatText_write(FILE *file, const Nrrd *nrrd, NrrdIoState *nio) {
281 char cmt[AIR_STRLEN_SMALL(128+1)], buff[AIR_STRLEN_SMALL(128+1)];
282 size_t I;
283 int i, x, y, sx, sy;
284 void *data;
285 float val;
286
287 sprintf(cmt, "%c ", NRRD_COMMENT_CHAR)__builtin___sprintf_chk (cmt, 0, __builtin_object_size (cmt, 2
> 1 ? 1 : 0), "%c ", '#');
288 if (!nio->bareText) {
289 if (1 == nrrd->dim) {
290 _nrrdFprintFieldInfo(file, cmt, nrrd, nio, nrrdField_dimension,
291 AIR_FALSE0);
292 }
293 for (i=1; i<=NRRD_FIELD_MAX32; i++) {
294 if (_nrrdFieldValidInText[i]
295 && nrrdField_dimension != i /* dimension is handled above */
296 && _nrrdFieldInteresting(nrrd, nio, i)) {
297 _nrrdFprintFieldInfo(file, cmt, nrrd, nio, i, AIR_FALSE0);
298 }
299 }
300 if (nrrdKeyValueSize(nrrd)) {
301 unsigned int kvi;
302 for (kvi=0; kvi<nrrd->kvpArr->len; kvi++) {
303 _nrrdKeyValueWrite(file, NULL((void*)0), "#",
304 nrrd->kvp[0 + 2*kvi],
305 nrrd->kvp[1 + 2*kvi]);
306 }
307 }
308 }
309
310 if (1 == nrrd->dim) {
311 sx = 1;
312 sy = AIR_CAST(int, nrrd->axis[0].size)((int)(nrrd->axis[0].size));
313 }
314 else {
315 sx = AIR_CAST(int, nrrd->axis[0].size)((int)(nrrd->axis[0].size));
316 sy = AIR_CAST(int, nrrd->axis[1].size)((int)(nrrd->axis[1].size));
317 }
318 data = nrrd->data;
319 I = 0;
320 for (y=0; y<sy; y++) {
321 for (x=0; x<sx; x++) {
322 val = nrrdFLookup[nrrd->type](data, I);
323 nrrdSprint[nrrdTypeFloat](buff, &val);
324 if (x) fprintf(file, " ");
325 fprintf(file, "%s", buff);
326 I++;
327 }
328 fprintf(file, "\n");
329 }
330
331 return 0;
332}
333
334const NrrdFormat
335_nrrdFormatText = {
336 "text",
337 AIR_FALSE0, /* isImage */
338 AIR_TRUE1, /* readable */
339 AIR_FALSE0, /* usesDIO */
340 _nrrdFormatText_available,
341 _nrrdFormatText_nameLooksLike,
342 _nrrdFormatText_fitsInto,
343 _nrrdFormatText_contentStartsLike,
344 _nrrdFormatText_read,
345 _nrrdFormatText_write
346};
347
348const NrrdFormat *const
349nrrdFormatText = &_nrrdFormatText;