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<limits> enums

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float_denorm_style

The enumeration describes the various methods that an implementation can choose for representing a denormalized floating-point value — one too small to represent as a normalized value:

enum float_denorm_style {
    denorm_indeterminate = -1,
    denorm_absent = 0,
    denorm_present = 1    };

Return Value

The enumeration returns:

  • denorm_indeterminate if the presence or absence of denormalized forms cannot be determined at translation time.

  • denorm_absent if denormalized forms are absent.

  • denorm_present if denormalized forms are present.

Example

See numeric_limits::has_denorm for an example in which the values of this enumeration may be accessed.

float_round_style

The enumeration describes the various methods that an implementation can choose for rounding a floating-point value to an integer value.

enum float_round_style {
    round_indeterminate = -1,
    round_toward_zero = 0,
    round_to_nearest = 1,
    round_toward_infinity = 2,
    round_toward_neg_infinity = 3    };

Return Value

The enumeration returns:

  • round_indeterminate if the rounding method cannot be determined.

  • round_toward_zero if the round toward zero.

  • round_to_nearest if the round to nearest integer.

  • round_toward_infinity if the round away from zero.

  • round_toward_neg_infinity if the round to more negative integer.

Example

See numeric_limits::round_style for an example in which the values of this enumeration may be accessed.