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loliGothicK/constexpr_lambda_4.cpp

Created April 12, 2018 18:18
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constexpr_lambda_4.cpp
int main(){
auto twice = [](int n){ return n*2; };
// twiceのoperator()は自動的にconstexpr指定されているのでOK
constexpr int x = twice(2);
}
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