43 lines
1.0 KiB
Markdown
43 lines
1.0 KiB
Markdown
[round.style]
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# 17 Language support library [[support]](./#support)
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## 17.3 Implementation properties [[support.limits]](support.limits#round.style)
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### 17.3.4 Enum float_round_style [round.style]
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[ð](#lib:float_round_style)
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namespace std {enum float_round_style { round_indeterminate = -1,
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round_toward_zero = 0,
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round_to_nearest = 1,
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round_toward_infinity = 2,
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round_toward_neg_infinity = 3};}
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[1](#1)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/support.tex#L968)
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The rounding mode for floating-point arithmetic is characterized by the
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values:
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- [(1.1)](#1.1)
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round_indeterminate if the rounding style is indeterminable
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- [(1.2)](#1.2)
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round_toward_zero if the rounding style is toward zero
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- [(1.3)](#1.3)
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round_to_nearest if the rounding style is to the nearest representable value
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- [(1.4)](#1.4)
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round_toward_infinity if the rounding style is toward infinity
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- [(1.5)](#1.5)
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round_toward_neg_infinity if the rounding style is toward negative infinity
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