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* [binutils-gdb] gdb: cast return value of std::unique_ptr::release to void
@ 2023-02-14 19:29 Simon Marchi
0 siblings, 0 replies; only message in thread
From: Simon Marchi @ 2023-02-14 19:29 UTC (permalink / raw)
To: gdb-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=8eaecfb37c8ece7396303dd3122def526a223d70
commit 8eaecfb37c8ece7396303dd3122def526a223d70
Author: Simon Marchi <simon.marchi@efficios.com>
Date: Mon Feb 13 14:55:13 2023 -0500
gdb: cast return value of std::unique_ptr::release to void
My editor shows warnings like:
value.c:2784: warning: The value returned by this function should be used
value.c:2784: note: cast the expression to void to silence this warning [bugprone-unused-return-value]
These warnings come from clangd, so ultimately from one of the clang
static analyzers (probably clang-tidy).
Silence these warnings by casting to void. Add a comment to explain
why this unusual thing is done.
Change-Id: I58323959c0baf9f1b20a8d596e4c58dc77c6809a
Approved-By: Tom Tromey <tom@tromey.com>
Diff:
---
gdb/value.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/gdb/value.c b/gdb/value.c
index 7873aeb9558..6597d0fe4ef 100644
--- a/gdb/value.c
+++ b/gdb/value.c
@@ -2347,9 +2347,12 @@ add_internal_function (gdb::unique_xmalloc_ptr<char> &&name,
{
struct cmd_list_element *cmd
= do_add_internal_function (name.get (), doc.get (), handler, cookie);
- doc.release ();
+
+ /* Manually transfer the ownership of the doc and name strings to CMD by
+ setting the appropriate flags. */
+ (void) doc.release ();
cmd->doc_allocated = 1;
- name.release ();
+ (void) name.release ();
cmd->name_allocated = 1;
}
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2023-02-14 19:29 [binutils-gdb] gdb: cast return value of std::unique_ptr::release to void Simon Marchi
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