userver: userver/utils/get_if.hpp File Reference
⚠️ This is the documentation for an old userver version. Click here to switch to the latest version.
All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Modules Pages Concepts
get_if.hpp File Reference

Detailed Description

Definition in file get_if.hpp.

Go to the source code of this file.

#include <functional>
#include <memory>
#include <utility>
#include <userver/utils/meta_light.hpp>
+ Include dependency graph for get_if.hpp:

Namespaces

namespace  utils
 Utilities.
 

Functions

template<typename Leaf >
constexpr autoutils::GetIf (Leaf &&leaf)
 
template<typename Root , typename Head , typename... Tail>
constexpr autoutils::GetIf (Root &&root, Head &&head, Tail &&... tail)
 Dereferences a chain of indirections and compositions, returns nullptr if one of the chain elements is not set.