header

<limits>

Numeric limits
This header defines elements with the characteristics of arithmetic types. More specifically, it defines a numeric_limits class template and a specialization of it for each of the fundamental types:

Classes

numeric_limits
Numeric limits type (class template )

Enum types

float_round_style
Enum type for float rounding style (type )
float_denorm_style
Enum type for float denormalization style (type )