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Asked: 2026-06-18T07:25:31+00:00

C++11 provides two type trait template classes: std::is_integer and std::is_integral . However, I cannot

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C++11 provides two type trait template classes: std::is_integer and std::is_integral. However, I cannot tell the differences between them.

What type, say T, can make std::is_integer<T>::value true and make std::is_integral<T>::value false?

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1 Answer

  1. Editorial Team

    std::is_integer<T> does not exist.

    That being said, std::numeric_limits<T>::is_integer does exist.

    I’m not aware of any significant difference between std::numeric_limits<T>::is_integer and std::is_integral<T>. The latter was designed much later and became standard in C++11, whereas the former was introduced in C++98.

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