| description | title | ms.date | f1_keywords | helpviewer_keywords | ms.assetid | ||
|---|---|---|---|---|---|---|---|
Learn more about: Compiler Error C3551 |
Compiler Error C3551 |
10/07/2023 |
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c8ee23da-6568-40db-93a6-3ddb7ac47712 |
if a trailing return type is used then the leading return type shall be the single type-specifier 'auto' (not 'type')
The leading return type in trailing return type syntax must contain only auto.
// C3551.cpp
// compile with: /c
const auto func1() -> const int; // C3551
auto* func2() -> int*; // C3551
auto& func3() -> int&; // C3551
auto&& func4() -> int&&; // C3551
decltype(auto) func5() -> int; // C3551
auto func6() -> int; // OK