FLT_ROUNDS
From cppreference.com
| Defined in header <float.h>
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| #define FLT_ROUNDS /* implementation defined */ |
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Returns 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 fesetround and FLT_ROUNDS reflects that change.
See also
| (C99)(C99) |
gets or sets rounding direction (function) |
| floating-point rounding direction (macro constant) | |
| C++ documentation for FLT_ROUNDS
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