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LSST Data Management Base Package
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TriState
represents a boolean value with additional unknown
state.
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#include <TriState.h>
Public Member Functions | |
TriState () | |
Construct value in unknown state. | |
TriState (bool value) | |
Construct value in a known state. | |
TriState & | operator= (TriState const &other)=default |
bool | operator== (TriState const &other) const |
Compare this tri-state value with other tri-state value. | |
bool | operator!= (TriState const &other) const |
bool | operator== (bool value) const |
Compare this tri-state value with a boolean. | |
bool | operator!= (bool value) const |
TriState | operator| (TriState const &other) const |
Compute the logical OR of two TriState values. | |
TriState | operator& (TriState const &other) const |
Compute the logical AND of two TriState values. | |
TriState | operator~ () const |
Compute the logical NOT of a TriState value. | |
bool | known () const |
Check whether the state is known. | |
TriState
represents a boolean value with additional unknown
state.
Instances of this class can be compared to booleans true
and false
, when the state is unknown, comparisons will return false
.
Definition at line 46 of file TriState.h.
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inline |
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inlineexplicit |
Construct value in a known state.
Definition at line 52 of file TriState.h.
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inline |
Check whether the state is known.
Definition at line 123 of file TriState.h.
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inline |
Definition at line 79 of file TriState.h.
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inline |
Definition at line 68 of file TriState.h.
Compute the logical AND of two TriState values.
other | Other TriState value. |
Definition at line 101 of file TriState.h.
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inline |
Compare this tri-state value with a boolean.
value | Boolean value to compare to. |
Definition at line 75 of file TriState.h.
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inline |
Compare this tri-state value with other tri-state value.
other | Tri-state value to compare to. |
Definition at line 60 of file TriState.h.
Compute the logical OR of two TriState values.
other | Other TriState value. |
Definition at line 87 of file TriState.h.
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inline |
Compute the logical NOT of a TriState value.
Definition at line 114 of file TriState.h.