From 07f939bf59efb20057f18c5ae2d35c2ee0cca971 Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Sat, 23 Mar 2019 11:09:42 +0100
Subject: tif_luv.c: silence CoverityScan false positive. CID 1400231, 1400251,
 1400254, 1400272, 1400318, 1400356

---
 libtiff/tif_luv.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

(limited to 'libtiff/tif_luv.c')

diff --git a/libtiff/tif_luv.c b/libtiff/tif_luv.c
index aa35ea07..192fa261 100644
--- a/libtiff/tif_luv.c
+++ b/libtiff/tif_luv.c
@@ -742,9 +742,14 @@ LogLuvEncodeTile(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s)
 #undef exp2  /* Conflict with C'99 function */
 #define exp2(x)		exp(M_LN2*(x))
 
-#define itrunc(x,m)	((m)==SGILOGENCODE_NODITHER ? \
-				(int)(x) : \
-				(int)((x) + rand()*(1./RAND_MAX) - .5))
+static int itrunc(double x, int m)
+{
+    if( m == SGILOGENCODE_NODITHER )
+        return (int)x;
+    /* Silence CoverityScan warning about bad crypto function */
+    /* coverity[dont_call] */
+    return (int)(x + rand()*(1./RAND_MAX) - .5);
+}
 
 #if !LOGLUV_PUBLIC
 static
-- 
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