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authorTom Tromey <tom@tromey.com>2023-06-18 22:06:05 -0600
committerTom Tromey <tom@tromey.com>2023-06-20 07:52:28 -0600
commitc65030964b684fd1df13346b678b42beee9af8e1 (patch)
treeea1ed63cb2b551fa158df61089c602bac3ca0ee0 /gdb
parent6b19f38ae331d2d889354fcd749e2478a868251c (diff)
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Use std::string in do_set_command
do_set_command manually updates a string, only to copy it to a std::string and free the working copy. This patch changes this code to use std::string for everything, simplifying the code and removing a copy. Reviewed-by: John Baldwin <jhb@FreeBSD.org>
Diffstat (limited to 'gdb')
-rw-r--r--gdb/cli/cli-setshow.c22
1 files changed, 7 insertions, 15 deletions
diff --git a/gdb/cli/cli-setshow.c b/gdb/cli/cli-setshow.c
index ecb739b..c7bbac1 100644
--- a/gdb/cli/cli-setshow.c
+++ b/gdb/cli/cli-setshow.c
@@ -340,14 +340,12 @@ do_set_command (const char *arg, int from_tty, struct cmd_list_element *c)
{
case var_string:
{
- char *newobj;
+ std::string newobj;
const char *p;
- char *q;
int ch;
- newobj = (char *) xmalloc (strlen (arg) + 2);
+ newobj.reserve (strlen (arg));
p = arg;
- q = newobj;
while ((ch = *p++) != '\000')
{
if (ch == '\\')
@@ -365,20 +363,14 @@ do_set_command (const char *arg, int from_tty, struct cmd_list_element *c)
if (ch == 0)
break; /* C loses */
else if (ch > 0)
- *q++ = ch;
+ newobj.push_back (ch);
}
else
- *q++ = ch;
+ newobj.push_back (ch);
}
-#if 0
- if (*(p - 1) != '\\')
- *q++ = ' ';
-#endif
- *q++ = '\0';
- newobj = (char *) xrealloc (newobj, q - newobj);
-
- option_changed = c->var->set<std::string> (std::string (newobj));
- xfree (newobj);
+ newobj.shrink_to_fit ();
+
+ option_changed = c->var->set<std::string> (std::move (newobj));
}
break;
case var_string_noescape: