std::float_round_style

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 arithmetics 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)
(C++11)
 floating-point rounding direction
(macro constant)

© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
http://en.cppreference.com/w/cpp/types/numeric_limits/float_round_style