object_array: add a "clear" function

diff --git a/column.c b/column.c
index ca878bcea7a42476a7c2b03e74897a2af87bec3f..8082a944fd6d07f69d323678380d635d9361b77c 100644 (file)
--- a/column.c
+++ b/column.c
@@ -81,8 +81,7 @@ static void compute_column_width(struct column_data *data)
  */
 static void shrink_columns(struct column_data *data)
 {
-       data->width = xrealloc(data->width,
-                              sizeof(*data->width) * data->cols);
+       REALLOC_ARRAY(data->width, data->cols);
        while (data->rows > 1) {
                int x, total_width, cols, rows;
                rows = data->rows;
@@ -91,8 +90,7 @@ static void shrink_columns(struct column_data *data)
                data->rows--;
                data->cols = DIV_ROUND_UP(data->list->nr, data->rows);
                if (data->cols != cols)
-                       data->width = xrealloc(data->width,
-                                              sizeof(*data->width) * data->cols);
+                       REALLOC_ARRAY(data->width, data->cols);
                compute_column_width(data);
 
                total_width = strlen(data->opts.indent);
@@ -367,7 +365,7 @@ int parseopt_column_callback(const struct option *opt,
 }
 
 static int fd_out = -1;
-static struct child_process column_process;
+static struct child_process column_process = CHILD_PROCESS_INIT;
 
 int run_column_filter(int colopts, const struct column_options *opts)
 {