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-rw-r--r--src/iemlib1/sigpvu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/iemlib1/sigpvu.c b/src/iemlib1/sigpvu.c
index 5dd4ea4..8ffbda3 100644
--- a/src/iemlib1/sigpvu.c
+++ b/src/iemlib1/sigpvu.c
@@ -129,7 +129,7 @@ static void sigpvu_tick(t_sigpvu *x)
x->x_old_peak *= x->x_c1;
/* NAN protect */
- if(PD_BADFLOAT(x->x_old_peak))
+ if(IEM_DENORMAL(x->x_old_peak))
x->x_old_peak = 0.0f;
if(x->x_cur_peak > x->x_old_peak)