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lfocontrolsource: fix clang compiler warning

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Cast enum to int before checking for negative values, which are
impossible according to the enum list.

gstlfocontrolsource.c:652:45: error: comparison of unsigned enum expression < 0
      is always false [-Werror,-Wtautological-compare]
  if (waveform >= num_waveforms || waveform < 0) {
                                   ~~~~~~~~ ^ ~

https://bugzilla.gnome.org/show_bug.cgi?id=653137
This commit is contained in:
Tim-Philipp Müller 2011-09-13 23:04:09 +01:00
parent 1051eddd4c
commit 46e401b6d9
1 changed files with 2 additions and 2 deletions
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4
libs/gst/controller/gstlfocontrolsource.c
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@ -566,7 +566,7 @@ static GstWaveformImplementation *waveforms[] = {
&waveform_triangle
};
static guint num_waveforms = G_N_ELEMENTS (waveforms);
static const guint num_waveforms = G_N_ELEMENTS (waveforms);
enum
{
@ -649,7 +649,7 @@ gst_lfo_control_source_set_waveform (GstLFOControlSource * self,
GstControlSource *csource = GST_CONTROL_SOURCE (self);
gboolean ret = TRUE;
if (waveform >= num_waveforms || waveform < 0) {
if (waveform >= num_waveforms || (int) waveform < 0) {
GST_WARNING ("waveform %d invalid or not implemented yet", waveform);
return FALSE;
}