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Questions - deduction-guide

clang vs gcc - CTAD of struct deriving from template parameter

Consider the following code: template <typename B> struct D : B { }; D d{[]{ }}; gcc 12.x accepts it and deduces d to be D</* type of lambda */> as expected. clang 14.x rejects it with...
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Vittorio Romeo

c++

language-lawyer

c++20

ctad

deduction-guide

Votes: 0

Answers: 1

Latest Answer

In the code snippet, no deduction guide has been provided. P1816 added deduction guides for aggregate class templates in C++20, by requiring that an aggregate deduction candidate is generated. The cod...
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cigien

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