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Asked: 2026-05-28T06:27:54+00:00

I was just curious because in my homework it says that the following statement

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I was just curious because in my homework it says that the following statement is false:

The C++ Standard Library functions and classes are not included in every C++ implementation.

I don’t think that the Standard Library is included in every C++ implementation unless you add (#include) the appropriate headers, right? In that case, I think that the above statement is true, not false.

Is the statement true or false?

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1 Answer

  1. Editorial Team

    Looks like unfortunate overloading of the word “include”.

    Your C++ compiler comes with files containing the standard library. So they are “included”. But they aren’t #include-d, you have to write #include in your source files to get access to the standard library.

    In addition, there are hosted and freestanding implementations. Here’s what the Standard says:

    Two kinds of implementations are defined: a hosted implementation and a freestanding implementation. For a hosted implementation, this International Standard defines the set of available libraries. A freestanding implementation is one in which execution may take place without the benefit of an operating system, and has an implementation-defined set of libraries that includes certain language-support libraries (17.6.1.3).

    Since the statement says “every C++ implementation”, and freestanding implementations do not include the entire C++ Standard Library, the statement is TRUE.

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