Re: [rfa] gdb.base/volatile.exp / varargs.exp: replace send_gdb with gdb_test

[Joel Brobecker <brobecker@adacore.com>]

> You can anchor the output with gdb_test_multiple.  This, for example,
> checks that a command produces no output other than the prompt:
> 
>     set cmd "..."
>     set msg "..."
>     set cmd_regex [string_to_regexp $cmd]
>     gdb_test_multiple $cmd $msg {
>         -re "^$cmd_regex\r\n$gdb_prompt $" {
>             pass $msg
>         }
>     }

Good to know! I thought I tried the above, but I must have screwed
up somewhere - maybe I was missing the \r\n...

> something like this is used in several places in the
> testsuite.  we could perhaps add a wrapper in gdb.exp.

I think we should - it's something that is so common, and the
gdb.reverse section alone is littered with FIXMEs because of
this issue. gdb_test_no_output?

-- 
Joel