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The std::numeric_limits ::digits function is used to find the number of radix digits that the data type can represent without loss of precision.
Data types that supports std::numeric_limits() in C++ std::numeric_limits<int>::max() gives the maximum possible value we can store in type int. std::numeric_limits<unsigned int>::max()) gives the maximum possible value we can store in type unsigned int.
The header defines explicit specializations for the types wchar_t , bool , char , signed char , unsigned char , short , unsigned short , int , unsigned int , long , unsigned long , float , double , long double , long long , unsigned long long , char16_t , and char32_t .
The Field class represents a field in a database record (object or instance of a database class).
Why, in the template class std::numeric_limits in C++, is digits (and others) defined as a (static const) field of the class, but min() and max() are methods, since these methods just return a litteral value ?
Thanks in advance.
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