Question: c++ file question Why do we include header guards in our header files? Because they ensure only authorized source files can include them. Because they

c++ file question c++ file question Why do we include header guards in our header

Why do we include header guards in our header files? Because they ensure only authorized source files can include them. Because they only allow the guarded declarations to be declared once. Because the compiler requires them to identify header files. Because they are necessary for function parameters with default values

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