Determining whether if a function (or variable, or constant) is declared in C++11

Determining whether if a function (or variable, or constant) is declared in C++11 As @mattn_jp pointed out on his blog entry, C/C++ allow use of redundant parenthesis in variable declaration. For example, both of the following statements conform to the language specification. int i = 3; // declares variable i, initialized to 3 int (j) = 4; // declares variable j, initialized to 4 By using this fea

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blogged / C++11で、変数や関数が定義済かどうかを判定するマクロの紹介