This fixes a compiler warning with -Werror=missing-format-attribute
and allows improved compiler checks for variable argument lists.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
#define READLINE_MAX_CMDS 64
#define READLINE_MAX_COMPLETIONS 256
-typedef void ReadLinePrintfFunc(void *opaque, const char *fmt, ...);
+typedef void GCC_FMT_ATTR(2, 3) ReadLinePrintfFunc(void *opaque,
+ const char *fmt, ...);
typedef void ReadLineFlushFunc(void *opaque);
typedef void ReadLineFunc(void *opaque, const char *str,
void *readline_opaque);
/* These functions just adapt the readline interface in a typesafe way. We
* could cast function pointers but that discards compiler checks.
*/
-static void monitor_readline_printf(void *opaque, const char *fmt, ...)
+static void GCC_FMT_ATTR(2, 3) monitor_readline_printf(void *opaque,
+ const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
return prompt;
}
-static void readline_printf_func(void *opaque, const char *fmt, ...)
+static void GCC_FMT_ATTR(2, 3) readline_printf_func(void *opaque,
+ const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);