Mercurial > MadButterfly

comparison src/redraw_man.c @ 864:6eaeec6806f2

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Fix the issue of potential to free a wild pointer
author Thinker K.F. Li <thinker@codemud.net>
date Wed, 22 Sep 2010 21:14:06 +0800
parents ce6cd06adccf
children 48df0f97f09e
comparison
equal deleted inserted replaced
863:e6c107b2e271 864:6eaeec6806f2
1360 1360
1361 /*! \brief Compute area of a coord. 1361 /*! \brief Compute area of a coord.
1362 */ 1362 */
1363 static int 1363 static int
1364 compute_area(coord_t *coord) { 1364 compute_area(coord_t *coord) {
1365 static co_aix (*poses)[2]; 1365 static co_aix (*poses)[2] = NULL;
1366 static int max_poses = 0; 1366 static int max_poses = 0;
1367 geo_t *geo; 1367 geo_t *geo;
1368 int cnt, pos_cnt; 1368 int cnt, pos_cnt;
1369 1369
1370 cnt = 0; 1370 cnt = 0;
1371 FORMEMBERS(coord, geo) { 1371 FORMEMBERS(coord, geo) {
1372 cnt++; 1372 cnt++;
1373 } 1373 }
1374 1374
1375 if(max_poses < (cnt * 2)) { 1375 if(max_poses < (cnt * 2)) {
1376 free(poses); 1376 if(poses)
1377 free(poses);
1377 max_poses = cnt * 2; 1378 max_poses = cnt * 2;
1378 poses = (co_aix (*)[2])malloc(sizeof(co_aix [2]) * max_poses); 1379 poses = (co_aix (*)[2])malloc(sizeof(co_aix [2]) * max_poses);
1379 if(poses == NULL) 1380 if(poses == NULL)
1380 return ERR; 1381 return ERR;
1381 } 1382 }