Skip to content

Bound

Bases: ABC

Abstract base class for (lower or upper) Bounds on a float value.

Parameters:

Name Type Description Default
value float

The value of the Bound.

 required
Source code in src/safeds/exceptions/_generic.py 
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
class Bound(ABC):
    """
    Abstract base class for (lower or upper) Bounds on a float value.

    Parameters
    ----------
    value: float
        The value of the Bound.
    """

    def __init__(self, value: float):
        """
        Initialize a Bound.

        Parameters
        ----------
        value: float
            The value of the Bound.

        Raises
        ------
        ValueError
            If value is nan or if value is +/-inf and the Bound type does not allow for infinite Bounds.
        """
        if isnan(value):
            raise ValueError("Bound must be a real number, not nan.")
        self._value = value

    def __str__(self) -> str:
        """Get a string representation of the concrete value of the Bound."""
        return str(self.value)

    @property
    def value(self) -> float:
        """Get the concrete value of the Bound."""
        return self._value

    @abstractmethod
    def _str_lower_bound(self) -> str:
        """Get a string representation of the Bound as the lower Bound of an interval."""

    @abstractmethod
    def _str_upper_bound(self) -> str:
        """Get a string representation of the Bound as the upper Bound of an interval."""

    @abstractmethod
    def _check_lower_bound(self, actual: float) -> bool:
        """
        Check that a value does not exceed the Bound on the lower side.

        Parameters
        ----------
        actual: float
            The actual value that should be checked for not exceeding the Bound.
        """

    @abstractmethod
    def _check_upper_bound(self, actual: float) -> bool:
        """
        Check that a value does not exceed the Bound on the upper side.

        Parameters
        ----------
        actual: float
            The actual value that should be checked for not exceeding the Bound.
        """

value: float property

Get the concrete value of the Bound.

__init__(value)

Initialize a Bound.

Parameters:

Name Type Description Default
value float

The value of the Bound.

 required

Raises:

Type Description
ValueError

If value is nan or if value is +/-inf and the Bound type does not allow for infinite Bounds.
Source code in src/safeds/exceptions/_generic.py 
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
def __init__(self, value: float):
    """
    Initialize a Bound.

    Parameters
    ----------
    value: float
        The value of the Bound.

    Raises
    ------
    ValueError
        If value is nan or if value is +/-inf and the Bound type does not allow for infinite Bounds.
    """
    if isnan(value):
        raise ValueError("Bound must be a real number, not nan.")
    self._value = value

__str__()

Get a string representation of the concrete value of the Bound.

Source code in src/safeds/exceptions/_generic.py 
119
120
121
def __str__(self) -> str:
    """Get a string representation of the concrete value of the Bound."""
    return str(self.value)