Load into the specified result a shared pointer to the observer of (template parameter) t_OBSERVER type having the specified observerName in the registry of this broadcast observer, and an empty shared pointer if there is no such observer otherwise. Return 0 if a non‐empty shared pointer was loaded, and a non‐zero value otherwise. Note that an empty shared pointer will be loaded if either no observer having observerName is in the registry or the observer registered with that name is not of t_OBSERVER type.

Synopsis

Declared in <ball_broadcastobserver.h>

template<class t_OBSERVER>
int
findObserver(
    bsl::shared_ptr<t_OBSERVER>* result,
    std::string_view const& observerName)
requires bsl::is_convertible<t_OBSERVER *, ball::Observer *>::value;

Description

The implementation is placed here in the class definition to work around a Microsoft C++ compiler (version 16) bug where the definition cannot be matched to the declaration when an enable_if is used.

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