Fix uninitialized variables

Author: emmt

src/bobyqa.c

@@ -595,6 +595,7 @@ bobyqb(const INTEGER n, const INTEGER npt, const context* ctx,
     /* Set uninitialized variables to avoid compiler warnings. */
     adelt  = zero;
     alpha  = zero;
+    beta   = zero;
     cauchy = zero;
     denom  = zero;
     diff   = zero;

src/newuoa.c

@@ -825,6 +825,10 @@ newuoa_optimize(INTEGER n, INTEGER npt, bool maximize, newuoa_objfun* objfun, vo
 
 #else
 
+    /* Initialize local variables. */
+    xipt = zero;
+    xjpt = zero;
+
     /* Check arguments. */
     if (n < 2) {
         if (iprint > 0) {