Use string_file::release in some places

I found a few spots like:

    string_file f;
    std::string x = f.string ();

However, string_file::string returns a 'const std::string &'...  so it
seems to me that this must be copying the string (? I find it hard to
reason about this in C++).

This patch changes these spots to use release() instead, which moves
the string.

Reviewed-by: Keith Seitz <keiths@redhat.com>
Reviewed-by: Lancelot Six <lancelot.six@amd.com>
This commit is contained in:
Tom Tromey 2023-09-21 13:31:14 -06:00
parent 5437a94464
commit 0128542673
2 changed files with 3 additions and 3 deletions

View File

@ -7581,7 +7581,7 @@ bp_location::to_string () const
string_file stb;
ui_out_redirect_pop redir (current_uiout, &stb);
print_breakpoint_location (this->owner, this);
return stb.string ();
return stb.release ();
}
/* Decrement reference count. If the reference count reaches 0,

View File

@ -647,12 +647,12 @@ execute_fn_to_string (std::string &res, std::function<void(void)> fn,
catch (...)
{
/* Finally. */
res = std::move (str_file.string ());
res = str_file.release ();
throw;
}
/* And finally. */
res = std::move (str_file.string ());
res = str_file.release ();
}
/* See gdbcmd.h. */