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-rw-r--r--src/newgrf_gui.cpp15
1 files changed, 9 insertions, 6 deletions
diff --git a/src/newgrf_gui.cpp b/src/newgrf_gui.cpp
index 7c5360ec3..0bbb8deca 100644
--- a/src/newgrf_gui.cpp
+++ b/src/newgrf_gui.cpp
@@ -715,12 +715,13 @@ struct NewGRFWindow : public Window {
break;
case SNGRFS_REMOVE: { // Remove GRF
- GRFConfig **pc, *c, *newsel;
+ GRFConfig **pc, *newsel;
/* Choose the next GRF file to be the selected file */
newsel = this->sel->next;
- for (pc = &this->list; (c = *pc) != NULL; pc = &c->next) {
+ for (pc = &this->list; *pc != NULL; pc = &(*pc)->next) {
+ GRFConfig *c = *pc;
/* If the new selection is empty (i.e. we're deleting the last item
* in the list, pick the file just before the selected file */
if (newsel == NULL && c->next == this->sel) newsel = c;
@@ -740,11 +741,12 @@ struct NewGRFWindow : public Window {
}
case SNGRFS_MOVE_UP: { // Move GRF up
- GRFConfig **pc, *c;
+ GRFConfig **pc;
if (this->sel == NULL) break;
int pos = 0;
- for (pc = &this->list; (c = *pc) != NULL; pc = &c->next, pos++) {
+ for (pc = &this->list; *pc != NULL; pc = &(*pc)->next, pos++) {
+ GRFConfig *c = *pc;
if (c->next == this->sel) {
c->next = this->sel->next;
this->sel->next = c;
@@ -759,11 +761,12 @@ struct NewGRFWindow : public Window {
}
case SNGRFS_MOVE_DOWN: { // Move GRF down
- GRFConfig **pc, *c;
+ GRFConfig **pc;
if (this->sel == NULL) break;
int pos = 1; // Start at 1 as we swap the selected newgrf with the next one
- for (pc = &this->list; (c = *pc) != NULL; pc = &c->next, pos++) {
+ for (pc = &this->list; *pc != NULL; pc = &(*pc)->next, pos++) {
+ GRFConfig *c = *pc;
if (c == this->sel) {
*pc = c->next;
c->next = c->next->next;