FLT_ROUNDS
From cppreference.com
C++
Utilities library
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C numeric limits interface
FLT_ROUNDS | ||||
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(C++11)
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Defined in header <cfloat>
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#define FLT_ROUNDS /* implementation defined */ |
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Specifies the current rounding direction of floating-point arithmetic operations.
| Value | Explanation |
-1
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the default rounding direction is not known |
0
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toward zero; same meaning as FE_TOWARDZERO |
1
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to nearest; same meaning as FE_TONEAREST |
2
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towards positive infinity; same meaning as FE_UPWARD |
3
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towards negative infinity; same meaning as FE_DOWNWARD |
| other values | implementation-defined behavior |
Notes
The rounding mode can be changed with std::fesetround and FLT_ROUNDS
The possible values of FLT_ROUNDS match the possible values of std::float_round_style, returned by std::numeric_limits::round_style
See also
| indicates floating-point rounding modes (enum) |
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(C++11)(C++11)
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gets or sets rounding direction (function) |
| floating-point rounding direction (macro constant) |
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C documentation for FLT_ROUNDS
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