COMPMID-2177 Fix clang warnings

Change-Id: I4beacfd714ee3ed771fd174cce5d8009a2961380
Signed-off-by: Michalis Spyrou <michalis.spyrou@arm.com>
Reviewed-on: https://review.mlplatform.org/c/1065
Reviewed-by: Giuseppe Rossini <giuseppe.rossini@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/core/utils/helpers/tensor_transform.cpp b/src/core/utils/helpers/tensor_transform.cpp
index 08803c7..7c56390 100644
--- a/src/core/utils/helpers/tensor_transform.cpp
+++ b/src/core/utils/helpers/tensor_transform.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018 ARM Limited.
+ * Copyright (c) 2018-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -114,7 +114,9 @@
                                                                                  Coordinates starts, Coordinates ends, Coordinates strides,
                                                                                  int32_t begin_mask, int32_t end_mask, int32_t shrink_axis_mask)
 {
-    Coordinates starts_abs, ends_abs, final_strides;
+    Coordinates starts_abs{};
+    Coordinates ends_abs{};
+    Coordinates final_strides{};
     for(unsigned int i = 0; i < input_shape.num_dimensions(); ++i)
     {
         const int start_i = calculate_start_on_index(input_shape, i, starts, strides, begin_mask);
diff --git a/src/core/utils/logging/LoggerRegistry.cpp b/src/core/utils/logging/LoggerRegistry.cpp
index 99236d2..3a46696 100644
--- a/src/core/utils/logging/LoggerRegistry.cpp
+++ b/src/core/utils/logging/LoggerRegistry.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017 ARM Limited.
+ * Copyright (c) 2017-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -66,7 +66,7 @@
     return (_loggers.find(name) != _loggers.end()) ? _loggers[name] : nullptr;
 }
 
-void LoggerRegistry::create_reserved_loggers(LogLevel log_level, std::vector<std::shared_ptr<Printer>> printers)
+void LoggerRegistry::create_reserved_loggers(LogLevel log_level, const std::vector<std::shared_ptr<Printer>> &printers)
 {
     std::lock_guard<arm_compute::Mutex> lock(_mtx);
     for(const auto &r : _reserved_loggers)
diff --git a/src/core/utils/quantization/AsymmHelpers.cpp b/src/core/utils/quantization/AsymmHelpers.cpp
index ea9ba77..d606adb 100644
--- a/src/core/utils/quantization/AsymmHelpers.cpp
+++ b/src/core/utils/quantization/AsymmHelpers.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2018 ARM Limited.
+ * Copyright (c) 2017-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -29,12 +29,12 @@
 
 using namespace arm_compute::quantization;
 
-constexpr int64_t fixed_point_one_Q0 = (1ll << 31);
+constexpr int64_t fixed_point_one_Q0 = (1LL << 31);
 constexpr float   epsilon            = 0.00001f;
 
 arm_compute::Status arm_compute::quantization::calculate_quantized_multiplier_less_than_one(float multiplier,
-                                                                                            int   *quant_multiplier,
-                                                                                            int   *right_shift)
+                                                                                            int *quant_multiplier,
+                                                                                            int *right_shift)
 {
     ARM_COMPUTE_RETURN_ERROR_ON(quant_multiplier == nullptr);
     ARM_COMPUTE_RETURN_ERROR_ON(right_shift == nullptr);
@@ -71,8 +71,8 @@
 }
 
 arm_compute::Status arm_compute::quantization::calculate_quantized_multiplier_greater_than_one(float multiplier,
-                                                                                               int   *quantized_multiplier,
-                                                                                               int   *left_shift)
+                                                                                               int *quantized_multiplier,
+                                                                                               int *left_shift)
 {
     ARM_COMPUTE_RETURN_ERROR_ON(quantized_multiplier == nullptr);
     ARM_COMPUTE_RETURN_ERROR_ON(left_shift == nullptr);