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    std::numeric_limits<T>::has_infinity

    From ko.cppreference.net
     
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    Type support
     
    std::numeric_limits
    Static constants
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    static const bool has_infinity;
    		(until C++11) 
    static constexpr bool has_infinity;
    		(since C++11)

    The value of std::numeric_limits<T>::has_infinity is true for all types T capable of representing the positive infinity as a distinct special value. This constant is meaningful for all floating-point types and is guaranteed to be true if std::numeric_limits<T>::is_iec559 == true.

    Translate all user-facing natural language in the complete HTML fragment above to 한국어 (ko). The source contains exactly 253 immutable placeholders; return every one exactly once and in order. Return the complete translated text.

    표준 특수화

    T std:: numeric_limits < T > :: has_infinity 의 값
    /* non-specialized */ false
    bool false
    char false
    signed char false
    unsigned char false
    wchar_t false
    char8_t (C++20부터) false
    char16_t (C++11부터) false
    char32_t (C++11부터) false
    short false
    unsigned short false
    int false
    unsigned int false
    long false
    unsigned long false
    long long (C++11부터) false
    unsigned long long (C++11부터) false
    float 일반적으로 true
    double 일반적으로 true
    long double 일반적으로 true

    예제

    이 코드 실행 
    #include <iostream>
#include <limits>
int main()
{
    std::cout << std::boolalpha
              << std::numeric_limits<int>::has_infinity << '\n'
              << std::numeric_limits<long>::has_infinity << '\n'
              << std::numeric_limits<float>::has_infinity << '\n'
              << std::numeric_limits<double>::has_infinity << '\n';
}

    가능한 출력: 

    false
false
true
true

    참고 항목

    [static]
    		주어진 부동소수점 타입의 양의 무한대 값을 반환합니다
    (public static member function)
    [static]
    		특수 값 "quiet not-a-number"(NaN)을 표현할 수 있는 부동소수점 타입을 식별합니다
    (public static member constant)
    [static]
    		특수 값 "signaling not-a-number"(NaN)을 표현할 수 있는 부동소수점 타입을 식별합니다
    (public static member constant)