[PATCH] lib: convert two "iterator copy strings" into references.

[Tomi Ollila]

On Fri, Jan 02 2015, David Bremner <david at tethera.net> wrote:

> Apparently this is a supported and even idiomatic way of keeping a
> temporary object (e.g. like that returned from an operator
> dereference) alive.
> ---

Based on internet search with words 'c++ reference to temporary' (*)
I believe the change is working one.

Tomi

(*) Uh, reading those explations gives me a headache >;)

>
> I decided it was better to do both of these "keepalive" strings the
> same way, so I applied the parent patch as is.
>
>  lib/message.cc | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/lib/message.cc b/lib/message.cc
> index bacb4d4..956a70a 100644
> --- a/lib/message.cc
> +++ b/lib/message.cc
> @@ -283,7 +283,7 @@ _notmuch_message_get_term (notmuch_message_t *message,
>      if (i == end)
>  	return NULL;
>  
> -    std::string term = *i;
> +    const std::string &term = *i;
>      if (strncmp (term.c_str(), prefix, prefix_len))
>  	return NULL;
>  
> @@ -641,7 +641,7 @@ _notmuch_message_add_directory_terms (void *ctx, notmuch_message_t *message)
>  	unsigned int directory_id;
>  	const char *direntry, *directory;
>  	char *colon;
> -	const std::string term = *i;
> +	const std::string &term = *i;
>  
>  	/* Terminate loop at first term without desired prefix. */
>  	if (strncmp (term.c_str (), direntry_prefix, direntry_prefix_len))
> -- 
> 2.1.3
>
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