Defined in header <float.h> | ||
|---|---|---|
#define FLT_ROUNDS /* implementation defined */ |
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 |
The rounding mode can be changed with fesetround and FLT_ROUNDS reflects that change.
|
(C99)(C99) | gets or sets rounding direction (function) |
|
(C99) | floating-point rounding direction (macro constant) |
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