std:: float_round_style

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Utilities library
General utilities
Relational operators (deprecated in C++20)
Defined in header <limits>
enum float_round_style {

round_indeterminate = - 1 ,
round_toward_zero = 0 ,
round_to_nearest = 1 ,
round_toward_infinity = 2 ,
round_toward_neg_infinity = 3

} ;

Enumeration constants of type std::float_round_style indicate the rounding style used by floating-point arithmetic whenever a result of an expression is stored in an object of a floating-point type. The values are:

Enumeration constants

Name Definition
std::round_indeterminate Rounding style cannot be determined
std::round_toward_zero Rounding toward zero
std::round_to_nearest Rounding toward nearest representable value
std::round_toward_infinity Rounding toward positive infinity
std::round_toward_neg_infinity Rounding toward negative infinity

See also

[static]
identifies the rounding style used by the type
(public static member constant)
floating-point rounding direction
(macro constant)