BSLSTL_VARIANT_DEFINE_IF_CONSTRUCTS

Constrain a function definition to when VARIANT constructs from TYPE.

Synopsis

Declared in <bslstl_variant.h>

#define BSLSTL_VARIANT_DEFINE_IF_CONSTRUCTS_FROM(VARIANT, TYPE)

Description

This component‐private macro is used as a constraint in function definitions which require the specified VARIANT to be constructible from the specified TYPE.

Parameters

Name

Description

VARIANT

variant specialization under consideration

TYPE

candidate alternative or converting type

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