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C++ Language/Type/Shortcuts/TrailingReturnType

< C++ Language‎ | Type‎ | Shortcuts
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In templated code (using template-parameter T), if you want your compiler to infer a function's return type from an expression that involves a parameter's type, then use this "trailing return type" syntax: auto AddTwo(T x) -> decltype(x+2) { return x+2; }.

Additional information about the trailing return syntax

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