remove surplus parentheses to silence clang5

driver/level3/level3.c

@@ -251,11 +251,11 @@ int CNAME(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n,
   if ((k == 0) || (alpha == NULL)) return 0;
 
 #if !defined(XDOUBLE) || !defined(QUAD_PRECISION)
-  if ((alpha[0] == ZERO)
+  if ( alpha[0] == ZERO
 #ifdef COMPLEX
-      && (alpha[1] == ZERO)
+      && alpha[1] == ZERO
 #endif
-      ) return 0;
+	 ) return 0; 
 #else
   if (((alpha[0].x[0] | alpha[0].x[1]
 #ifdef COMPLEX

driver/level3/level3_syr2k.c

@@ -154,9 +154,9 @@ int CNAME(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n, FLOAT *sa, FLO
 
   if ((k == 0) || (alpha == NULL)) return 0;
 
-  if ((alpha[0] == ZERO)
+  if (alpha[0] == ZERO
 #ifdef COMPLEX
-      && (alpha[1] == ZERO)
+      && alpha[1] == ZERO
 #endif
       ) return 0;
 

driver/level3/level3_syrk.c

@@ -158,9 +158,9 @@ int CNAME(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n, FLOAT *sa, FLO
 
   if ((k == 0) || (alpha == NULL)) return 0;
 
-  if ((alpha[0] == ZERO)
+  if (alpha[0] == ZERO
 #if defined(COMPLEX) && !defined(HERK)
-      && (alpha[1] == ZERO)
+      && alpha[1] == ZERO
 #endif
       ) return 0;
 

driver/level3/level3_syrk_threaded.c

@@ -200,9 +200,9 @@ static int inner_thread(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n,
 
   if ((k == 0) || (alpha == NULL)) return 0;
 
-  if ((alpha[0] == ZERO)
+  if (alpha[0] == ZERO
 #if defined(COMPLEX) && !defined(HERK)
-      && (alpha[1] == ZERO)
+      && alpha[1] == ZERO
 #endif
       ) return 0;
 

driver/level3/level3_thread.c

@@ -295,9 +295,9 @@ static int inner_thread(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n,
 
   /* Return early if no more computation is needed */
   if ((k == 0) || (alpha == NULL)) return 0;
-  if ((alpha[0] == ZERO)
+  if (alpha[0] == ZERO
 #ifdef COMPLEX
-      && (alpha[1] == ZERO)
+      && alpha[1] == ZERO
 #endif
       ) return 0;