1 files changed, 3 insertions, 3 deletions
diff --git a/src/projections/tcc.cpp b/src/projections/tcc.cpp
index 3dd47940..9413b567 100644
--- a/src/projections/tcc.cpp
+++ b/src/projections/tcc.cpp
@@ -12,10 +12,10 @@ PROJ_HEAD(tcc, "Transverse Central Cylindrical") "\n\tCyl, Sph, no inv";
 
 static PJ_XY tcc_s_forward (PJ_LP lp, PJ *P) {           /* Spheroidal, forward */
     PJ_XY xy = {0.0, 0.0};
-    double b, bt;
 
-    b = cos (lp.phi) * sin (lp.lam);
-    if ((bt = 1. - b * b) < EPS10) {
+    const double b = cos (lp.phi) * sin (lp.lam);
+    const double bt = 1. - b * b;
+    if (bt < EPS10) {
         proj_errno_set(P, PJD_ERR_TOLERANCE_CONDITION);
         return xy;
     }