I read that using directive is not encouraged in C++ saying never put using directives in header files. Why is it like that? Any hint for me?
Thanks!
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I read that using directive is not encouraged in C++ saying never put using directives in header files. Why is it like that? Any hint for me?
Thanks!
using namespace x;is a very bad idea, since you have no idea what names you are importing, even with the standard library.However:
using std::cout;and similar statements are a very good idea, because they import symbols explicitly, and make code more readable (though it still might not be a good idea to put them in the global scope in header files).