std::float_round_style

 

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float_round_style

float_denorm_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

round_style [static]	identifies the rounding style used by the type (public static member constant)
FE_DOWNWARDFE_TONEARESTFE_TOWARDZEROFE_UPWARD (C++11)	floating-point rounding direction (macro constant)