BloombergLP::bslstl::Variant_Function::functionImpl

This component-private function invokes the specified visitor with the active alternative object of the specified variant and implicitly converts the return type to (template parameter) t_RET. The pre-C++17 implementation is limited to invocations of the form visitor(variant). The behavior is undefined unless (template parameter) t_INDEX is the index of the active alternative.

Synopsis

Declared in <bslstl_variant.h>

static
t_RET
functionImpl(
    t_VISITOR&& visitor,
    t_VARIANT&& variant);