[FFmpeg-cvslog] eval: Explicitly ignore return value of strtod() in parse_db()

[Diego Biurrun]

ffmpeg | branch: master | Diego Biurrun <diego at biurrun.de> | Sat Jul 27 13:14:15 2013 +0200| [5b097399baa2e38cc513939cfab3a9b6fdbc33df] | committer: Diego Biurrun

eval: Explicitly ignore return value of strtod() in parse_db()

The return value is not needed.  This fixes the warning:
libavutil/eval.c:353:15: warning: ignoring return value of ‘strtod’

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5b097399baa2e38cc513939cfab3a9b6fdbc33df
---

 libavutil/eval.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavutil/eval.c b/libavutil/eval.c
index 0ca7472..48f8e66 100644
--- a/libavutil/eval.c
+++ b/libavutil/eval.c
@@ -26,6 +26,7 @@
  * see http://joe.hotchkiss.com/programming/eval/eval.html
  */
 
+#include "attributes.h"
 #include "avutil.h"
 #include "common.h"
 #include "eval.h"
@@ -350,7 +351,7 @@ static int parse_dB(AVExpr **e, Parser *p, int *sign)
        for example, -3dB is not the same as -(3dB) */
     if (*p->s == '-') {
         char *next;
-        strtod(p->s, &next);
+        double av_unused ignored = strtod(p->s, &next);
         if (next != p->s && next[0] == 'd' && next[1] == 'B') {
             *sign = 0;
             return parse_primary(e, p);