FLT_ROUNDS
Defined in header <cfloat> |
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Specifies the current rounding direction of floating-point arithmetic operations.
| Value | Explanation |
|---|---|
-1 |
the default rounding direction is not known |
0 |
toward zero; same meaning as FE_TOWARDZERO |
1 |
to nearest; same meaning as FE_TONEAREST |
2 |
towards positive infinity; same meaning as FE_UPWARD |
3 |
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 reflects that change.
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) |
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(C++11)
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floating-point rounding direction (macro constant) |
C documentation for FLT_ROUNDS |
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