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Home/ Questions/Q 8140373
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Editorial Team
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Editorial Team
Asked: June 6, 20262026-06-06T12:08:33+00:00 2026-06-06T12:08:33+00:00

In the following code: struct Foo { Foo(int x=0); }; Does the constructor count

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In the following code:

struct Foo
{
    Foo(int x=0);
};

Does the constructor count as a default constructor?

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  1. Editorial Team
    Editorial Team
    2026-06-06T12:08:35+00:00Added an answer on June 6, 2026 at 12:08 pm

    C++98 §12.1/5 (emphasis mine):

    A default constructor for a class X is a constructor of X that can be called without an argument. If there is no user-declared constructor for class X, a default constructor is implicitly declared.

    So yes, it does count as a default constructor. See also.

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