Floating-point utility function provide run-time functions for handling floating-point number types defined within a schema.
◆ rtxGetMinusInfinity()
| OSREAL rtxGetMinusInfinity |
( |
OSVOIDARG |
| ) |
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Returns the IEEE negative infinity value. This is defined as 0xfff0000000000000 in IEEE standard 754. We assume the presence of the IEEE double type, that is, 64-bits of precision.
◆ rtxGetMinusZero()
| OSREAL rtxGetMinusZero |
( |
OSVOIDARG |
| ) |
|
Returns the IEEE minus zero value. This is defined as 0x8000000000000000 in IEEE standard 754. We assume the presence of the IEEE double type, that is, 64-bits of precision.
◆ rtxGetNaN()
| OSREAL rtxGetNaN |
( |
OSVOIDARG |
| ) |
|
Returns the IEEE Not-A-Number (NaN) value. This is defined as 0x7ff8000000000000 in IEEE standard 754. We assume the presence of the IEEE double type, that is, 64-bits of precision.
◆ rtxGetPlusInfinity()
| OSREAL rtxGetPlusInfinity |
( |
OSVOIDARG |
| ) |
|
Returns the IEEE posative infinity value. This is defined as 0x7ff0000000000000 in IEEE standard 754. We assume the presence of the IEEE double type, that is, 64-bits of precision.
◆ rtxIsApproximate()
| OSBOOL rtxIsApproximate |
( |
OSREAL |
a, |
|
|
OSREAL |
b, |
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OSREAL |
delta |
|
) |
| |
A utility function that return TRUE when first number are approximate to second number with given precision.
- Parameters
-
| a | The input real value. |
| b | The input real value. |
| delta | difference must be low than delta * a 1E-7 - set best precision for float; 1E-15 - set best precision for double. |
◆ rtxIsApproximateAbs()
| OSBOOL rtxIsApproximateAbs |
( |
OSREAL |
a, |
|
|
OSREAL |
b, |
|
|
OSREAL |
delta |
|
) |
| |
A utility function that return TRUE when first number are approximate to second number with given absolute precision.
- Parameters
-
| a | The input real value. |
| b | The input real value. |
| delta | difference must be low than delta |
◆ rtxIsMinusInfinity()
| OSBOOL rtxIsMinusInfinity |
( |
OSREAL |
value | ) |
|
A utility function that compares the given input value to the IEEE 754 value for negative infinity.
- Parameters
-
| value | The input real value. |
◆ rtxIsMinusZero()
| OSBOOL rtxIsMinusZero |
( |
OSREAL |
value | ) |
|
A utility function that compares the given input value to the IEEE 754 value for minus zero.
- Parameters
-
| value | The input real value. |
◆ rtxIsNaN()
| OSBOOL rtxIsNaN |
( |
OSREAL |
value | ) |
|
A utility function that compares the given input value to the IEEE 754 value for Not-A-Number (NaN).
- Parameters
-
| value | The input real value. |
◆ rtxIsPlusInfinity()
| OSBOOL rtxIsPlusInfinity |
( |
OSREAL |
value | ) |
|
A utility function that compares the given input value to the IEEE 754 value for positive infinity.
- Parameters
-
| value | The input real value. |