I cannot avoid the inspection warning for 'Clang tidy'

I'm using google test and I'm testing a C code (not C++) but anyway every time I run the inspector I receive these errors:

• use '= default' to define a trivial default constructor
• use '= delete' to prohibit calling of a special member function

It is my code:

[code]

#include "prime/is_prime.c"
#include <gtest/gtest.h>

namespace {
    TEST(is_prime_test, yes) {
        EXPECT_EQ(1, is_prime(1));
    }
}

[/code]