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selection: foreach_selection_*: must wrap row number

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Fixes occasional crashes when we're at the end of the grid and
selection wraps around.
This commit is contained in:
Daniel Eklöf 2020-01-05 15:38:45 +01:00
parent 7e178d6337
commit 6833abf33c
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GPG key ID: 5BBD4992C116573F
1 changed files with 6 additions and 2 deletions
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8
selection.c
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@ -74,7 +74,9 @@ foreach_selected_normal(
}
for (int r = start_row; r <= end_row; r++) {
struct row *row = term->grid->rows[r];
size_t real_r = r & (term->grid->num_rows - 1);
struct row *row = term->grid->rows[real_r];
assert(row != NULL);
for (int c = start_col;
c <= (r == end_row ? end_col : term->cols - 1);
@ -107,7 +109,9 @@ foreach_selected_block(
};
for (int r = top_left.row; r <= bottom_right.row; r++) {
struct row *row = term->grid->rows[r];
size_t real_r = r & (term->grid->num_rows - 1);
struct row *row = term->grid->rows[real_r];
assert(row != NULL);
for (int c = top_left.col; c <= bottom_right.col; c++)
cb(term, row, &row->cells[c], data);