apply overloads

Synopses

Declared in <bdlb_variant.h>

Apply visitor to the held value of this modifiable variant.

template<class VISITOR>
VISITOR::ResultType
apply(VISITOR& visitor)
requires Variant_ReturnValueHelper<VISITOR>::value == 1;

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Apply visitor to the held value and return its result.

template<class VISITOR>
VISITOR::ResultType
apply(VISITOR& visitor) const
requires Variant_ReturnValueHelper<VISITOR>::value == 1;

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Apply visitor to the held value of this modifiable variant.

template<class VISITOR>
VISITOR::ResultType
apply(VISITOR const& visitor)
requires Variant_ReturnValueHelper<VISITOR>::value == 1;

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Apply visitor to the held value and return its result.

template<class VISITOR>
VISITOR::ResultType
apply(VISITOR const& visitor) const
requires Variant_ReturnValueHelper<VISITOR>::value == 1;

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Apply visitor to the held TYPE value of this modifiable variant.

template<
    class RET_TYPE,
    class VISITOR>
RET_TYPE
apply(VISITOR& visitor);

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Apply visitor to the held value and return RET_TYPE.

template<
    class RET_TYPE,
    class VISITOR>
RET_TYPE
apply(VISITOR& visitor) const;

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Same as the preceding overload, but for a const visitor.

template<
    class RET_TYPE,
    class VISITOR>
RET_TYPE
apply(VISITOR const& visitor);

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Apply visitor to the held value and return RET_TYPE.

template<
    class RET_TYPE,
    class VISITOR>
RET_TYPE
apply(VISITOR const& visitor) const;

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Apply visitor to the held TYPE value of this modifiable variant.

template<
    class VISITOR,
    class TYPE>
VISITOR::ResultType
apply(
    VISITOR& visitor,
    TYPE const& defaultValue)
requires Variant_ReturnValueHelper<VISITOR>::value == 1;

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Apply visitor to the held TYPE value of this variant.

template<
    class VISITOR,
    class TYPE>
VISITOR::ResultType
apply(
    VISITOR& visitor,
    TYPE const& defaultValue) const
requires Variant_ReturnValueHelper<VISITOR>::value == 1;

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Apply visitor to the held TYPE value of this modifiable variant.

template<
    class VISITOR,
    class TYPE>
VISITOR::ResultType
apply(
    VISITOR const& visitor,
    TYPE const& defaultValue)
requires Variant_ReturnValueHelper<VISITOR>::value == 1;

» more...

Apply visitor to the held TYPE value of this variant.

template<
    class VISITOR,
    class TYPE>
VISITOR::ResultType
apply(
    VISITOR const& visitor,
    TYPE const& defaultValue) const
requires Variant_ReturnValueHelper<VISITOR>::value == 1;

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Apply visitor to the held TYPE value of this modifiable variant.

template<
    class RET_TYPE,
    class VISITOR,
    class TYPE>
RET_TYPE
apply(
    VISITOR& visitor,
    TYPE const& defaultValue);

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Apply visitor to the held TYPE value of this variant.

template<
    class RET_TYPE,
    class VISITOR,
    class TYPE>
RET_TYPE
apply(
    VISITOR& visitor,
    TYPE const& defaultValue) const;

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Same as the preceding overload, but for a const visitor.

template<
    class RET_TYPE,
    class VISITOR,
    class TYPE>
RET_TYPE
apply(
    VISITOR const& visitor,
    TYPE const& defaultValue);

» more...

Apply visitor to the held TYPE value of this variant.

template<
    class RET_TYPE,
    class VISITOR,
    class TYPE>
RET_TYPE
apply(
    VISITOR const& visitor,
    TYPE const& defaultValue) const;

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Return Value

result of invoking visitor on the active alternative

Parameters

Name

Description

visitor

callable applied to the active alternative

defaultValue

value passed to visitor when this variant is unset

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