Mailinglist Archive: vhostmd (42 mails)

[Jim Fehlig <jfehlig@xxxxxxxxxx>]

Richard W.M. Jones wrote:
> Although using gcc-specific extensions may be suspect, we now also use
> them in libguestfs without any problems.  Lots of non-gcc compilers
> understand __attribute__ because so much code is now compiled for gcc.
>
> Rich.
>
>   
> From ff676595c8736b0463e628fe226ca3cc437703ee Mon Sep 17 00:00:00 2001
> From: Richard Jones <rjones@xxxxxxxxxx>
> Date: Thu, 15 Oct 2009 12:18:34 +0100
> Subject: [PATCH 2/8] Allow gcc to check calls to vu_log* printf-like 
> functions.
>
> ---
>  include/util.h |    6 ++++--
>  1 files changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/include/util.h b/include/util.h
> index 1eebf45..bd347bf 100644
> --- a/include/util.h
> +++ b/include/util.h
> @@ -62,7 +62,8 @@ void vu_log_close(void);
>  /* 
>   * Logging function.
>   */
> -void vu_log(int priority, const char *fmt, ...);
> +void vu_log(int priority, const char *fmt, ...)
> +  __attribute__((format (printf, 2, 3)));
>  
>  /*
>   * Create buffer capable of holding len content.
> @@ -82,7 +83,8 @@ void vu_buffer_add(vu_buffer *buf, const char *str, int 
> len);
>  /*
>   * Do a formatted print to buffer.
>   */
> -void vu_buffer_vsprintf(vu_buffer *buf, const char *format, ...);
> +void vu_buffer_vsprintf(vu_buffer *buf, const char *format, ...)
> +  __attribute__((format (printf, 2, 3)));
>  
>  /*
>   * Erase buffer, setting use to 0 and clearing content.
> -- 1.6.5.rc2

ACK

Jim

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