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 asFE_TOWARDZERO |
1 | to nearest; same meaning asFE_TONEAREST |
2 | towards positive infinity; same meaning asFE_UPWARD |
3 | towards negative infinity; same meaning asFE_DOWNWARD |
| other values | implementation-defined behavior |
The rounding mode can be changed withfesetround andFLT_ROUNDS reflects that change.
(C99)(C99) | gets or sets rounding direction (function)[edit] |
| floating-point rounding direction (macro constant)[edit] | |
C++ documentation forFLT_ROUNDS | |
