… | |
… | |
186 | || ob1->speed != ob2->speed |
186 | || ob1->speed != ob2->speed |
187 | || ob1->value != ob2->value |
187 | || ob1->value != ob2->value |
188 | || ob1->name != ob2->name) |
188 | || ob1->name != ob2->name) |
189 | return 0; |
189 | return 0; |
190 | |
190 | |
191 | /* Do not merge objects if nrof would overflow. First part checks |
191 | /* Do not merge objects if nrof would overflow, assume nrof |
192 | * for unsigned overflow (2c), second part checks whether the result |
192 | * is always 0 .. 2**31-1 */ |
193 | * would fit into a 32 bit signed int, which is often used to hold |
193 | if (ob1->nrof > 0x7fffffff - ob2->nrof) |
194 | * nrof values. |
|
|
195 | */ |
|
|
196 | if (~ob1->nrof < ob2->nrof || ob1->nrof + ob2->nrof > (1UL << 31)) |
|
|
197 | return 0; |
194 | return 0; |
198 | |
195 | |
199 | /* If the objects have been identified, set the BEEN_APPLIED flag. |
196 | /* If the objects have been identified, set the BEEN_APPLIED flag. |
200 | * This is to the comparison of the flags below will be OK. We |
197 | * This is to the comparison of the flags below will be OK. We |
201 | * just can't ignore the been applied or identified flags, as they |
198 | * just can't ignore the been applied or identified flags, as they |
… | |
… | |
235 | || memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats))) |
232 | || memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats))) |
236 | return 0; |
233 | return 0; |
237 | |
234 | |
238 | if ((ob1->flag ^ ob2->flag) |
235 | if ((ob1->flag ^ ob2->flag) |
239 | .reset (FLAG_INV_LOCKED) |
236 | .reset (FLAG_INV_LOCKED) |
240 | .reset (FLAG_CLIENT_SENT) |
|
|
241 | .reset (FLAG_REMOVED) |
237 | .reset (FLAG_REMOVED) |
242 | .any ()) |
238 | .any ()) |
243 | return 0; |
239 | return 0; |
244 | |
240 | |
245 | /* This is really a spellbook check - we should in general |
241 | /* This is really a spellbook check - we should in general |