COMPMID-2486: Remove/add disabled compiler warnings

Removed the following flags:
-Wno-vla
-Wno-strict-overflow

Added:
-Wformat-security

Change-Id: I49eb3d724e14db796e543164295674617c37cb65
Signed-off-by: Michalis Spyrou <michalis.spyrou@arm.com>
Reviewed-on: https://review.mlplatform.org/c/2109
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>

1 files changed, 5 insertions, 3 deletions

diff --git a/tests/validation/reference/Gaussian5x5.cpp b/tests/validation/reference/Gaussian5x5.cpp
index 55bb287fbe..ac84f6d097 100644
--- a/tests/validation/reference/Gaussian5x5.cpp
+++ b/tests/validation/reference/Gaussian5x5.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017 ARM Limited.
+ * Copyright (c) 2017-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -45,8 +45,10 @@ SimpleTensor<T> gaussian5x5(const SimpleTensor<T> &src, BorderMode border_mode,
             4, 16, 24, 16, 4,
             1, 4, 6, 4, 1
         } };
-    const float scale = 1.f / 256.f;
-    for(int element_idx = 0; element_idx < src.num_elements(); ++element_idx)
+    const float    scale        = 1.f / 256.f;
+    const uint32_t num_elements = src.num_elements();
+
+    for(uint32_t element_idx = 0; element_idx < num_elements; ++element_idx)
     {
         const Coordinates id = index2coord(src.shape(), element_idx);
         apply_2d_spatial_filter(id, src, dst, TensorShape(5U, 5U), filter.data(), scale, border_mode, constant_border_value);