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API > API/Runtime > API/Runtime/Core > API/Runtime/Core/Templates
References
| Module | Core |
| Header | /Engine/Source/Runtime/Core/Public/Templates/ValueOrError.h |
| Include | #include "Templates/ValueOrError.h" |
Syntax
template<typename ValueType>
class TValueOrError< ValueType, void >
Functions
| Type | Name | Description | |
|---|---|---|---|
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ValueType & | GetValue () |
Access the value. Asserts if this does not have a value. |
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const ValueType & | GetValue () |
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ValueType | GetValue () |
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bool | HasError () |
Whether the error is set. An error does imply no value. |
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bool | HasValue () |
Whether the value is set. A value does imply no error. |
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ValueType | StealValue () |
Steal the value. Asserts if this does not have a value. This causes the value to be unset. |
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ValueType * | TryGetValue () |
Access the value if it is set. |
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const ValueType * | TryGetValue () |
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TValueOrError
(
TValueOrError_ValueProxy< ArgTypes... >&& Proxy |
Construct the value from a proxy from MakeValue. | |
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TValueOrError
(
TValueOrError_ErrorProxy<>&& Proxy |
Construct the error from a proxy from MakeError. |