examples: fixed clang-tidy warnings

Author: vpirogov

examples/example_utils.hpp

@@ -79,7 +79,7 @@ inline void finalize() {
 #endif
 }
 
-dnnl::engine::kind validate_engine_kind(dnnl::engine::kind akind) {
+inline dnnl::engine::kind validate_engine_kind(dnnl::engine::kind akind) {
     // Checking if a GPU exists on the machine
     if (akind == dnnl::engine::kind::gpu) {
         if (dnnl::engine::get_count(dnnl::engine::kind::gpu) == 0) {
@@ -94,6 +94,7 @@ dnnl::engine::kind validate_engine_kind(dnnl::engine::kind akind) {
 // Exception class to indicate that the example uses a feature that is not
 // available on the current systems. It is not treated as an error then, but
 // just notifies a user.
+// NOLINTNEXTLINE(readability-identifier-naming)
 struct example_allows_unimplemented : public std::exception {
     example_allows_unimplemented(const char *message) noexcept
         : message(message) {}
@@ -107,7 +108,7 @@ inline const char *engine_kind2str_upper(dnnl::engine::kind kind);
 // Returns `0` on success, `1` or oneDNN error, and `2` on example error.
 inline int handle_example_errors(
         std::initializer_list<dnnl::engine::kind> engine_kinds,
-        std::function<void()> example) {
+        const std::function<void()> &example) {
     int exit_code = 0;
 
     try {

examples/graph/graph_example_utils.hpp

@@ -535,7 +535,7 @@ class simple_memory_pool_t {
 #endif
             ptr = sh_ptr.get();
             // record the map of mm size and its ptr for reuse
-            map_size_ptr_.emplace(std::make_pair(size, sh_ptr));
+            map_size_ptr_.emplace(size, sh_ptr);
             is_free_ptr_[ptr] = false;
         }
         return ptr;
@@ -566,7 +566,7 @@ class simple_memory_pool_t {
                     = std::shared_ptr<void> {malloc(size), cpu_deletor_t {}};
             ptr = sh_ptr.get();
             // record the map of mm size and its ptr for reuse
-            map_size_ptr_.emplace(std::make_pair(size, sh_ptr));
+            map_size_ptr_.emplace(size, sh_ptr);
             is_free_ptr_[ptr] = false;
         }
         return ptr;