[PATCH 12/22] Use std::string in ui_out_table

Simon Marchi
2016-11-24T15:28:17Z

Use std::string for the id field of the ui_out_table object.

I found that all users of ui_out_table_begin passed a non-NULL value to
the tblid parameter, so we don't have to worry about the NULL case. I
changed the tblid parameter to be a std::string while at it.

gdb/ChangeLog:

* ui-out.c (struct ui_out_table) <id>: Change type to
std::string.
(ui_out_table_begin): Change tblid parameter type to
std::string, adapt code.
update following type change.
(clear_table): Update.
(ui_out_new): Update.
---
gdb/ui-out.c | 18 +++++++-----------
1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/gdb/ui-out.c b/gdb/ui-out.c
index 1713183..a40ac0a 100644
--- a/gdb/ui-out.c
+++ b/gdb/ui-out.c
@@ -27,6 +27,7 @@

#include <vector>
#include <memory>
+#include <string>

/* table header structures */

@@ -72,7 +73,7 @@ struct ui_out_table

/* String identifying the table (as specified in the table_begin
call). */
- char *id;
+ std::string id;

/* Points to the first table header (if any). */
struct ui_out_hdr *header_first;
@@ -194,8 +195,7 @@ static void verify_field (struct ui_out *uiout, int *fldno, int *width,

static void
ui_out_table_begin (struct ui_out *uiout, int nbrofcols,
- int nr_rows,
- const char *tblid)
+ int nr_rows, const std::string &tblid)
{
if (uiout->table.flag)
internal_error (__FILE__, __LINE__,
@@ -206,13 +206,11 @@ previous table_end."));
uiout->table.body_flag = 0;
uiout->table.entry_level = uiout->level + 1;
uiout->table.columns = nbrofcols;
- if (tblid != NULL)
- uiout->table.id = xstrdup (tblid);
- else
- uiout->table.id = NULL;
+ uiout->table.id = tblid;
+
clear_header_list (uiout);

- uo_table_begin (uiout, nbrofcols, nr_rows, uiout->table.id);
+ uo_table_begin (uiout, nbrofcols, nr_rows, uiout->table.id.c_str ());
}

void
@@ -577,8 +575,7 @@ uo_table_header (struct ui_out *uiout, int width, enum ui_align align,
static void
clear_table (struct ui_out *uiout)
{
- xfree (uiout->table.id);
- uiout->table.id = NULL;
+ uiout->table.id.clear ();
clear_header_list (uiout);
}

@@ -875,7 +872,6 @@ ui_out_new (const struct ui_out_impl *impl, void *data,
current->field_count = 0;
uiout->levels.push_back (std::move (current));

- uiout->table.id = NULL;
uiout->table.header_first = NULL;
uiout->table.header_last = NULL;
uiout->table.header_next = NULL;
--
2.10.0