Correct double commit mistake

The recent patch sequence got slightly contaminated with versions
of abs15() by mistake. On top of it all, the one committed did the
wrong thing. This patch corrects abs15() to do simple clamping of
values outside the allowed range.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>

1 files changed, 2 insertions, 1 deletions

diff --git a/src/state.c b/src/state.c
index 182a508..b9b7bbc 100644
--- a/src/state.c
+++ b/src/state.c
@@ -25,6 +25,7 @@
 
 const double FTW = 0.05;
 const double FTS = 0.05;
+const int XMAX = 32767;
 
 void init_state(struct State *s)
 {
@@ -38,7 +39,7 @@ static int fincmp(const void *a, const void *b)
 
 inline int abs15(int x)
 {
-        return 32767 & (x < 0 ? -x : x);
+        return x < -XMAX ? -XMAX : x > XMAX ? XMAX : x;
 }
 
 /* abslute scale is assumed to fit in 15 bits */