22 General utilities library [utilities]

22.14 Formatting [format]

22.14.8 Arguments [format.arguments]

22.14.8.2 Class template format-arg-store [format.arg.store]

namespace std { template<class Context, class... Args> class format-arg-store { // exposition only array<basic_format_arg<Context>, sizeof...(Args)> args; // exposition only }; }

An instance of format-arg-store stores formatting arguments.

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template<class Context = format_context, class... Args>
  format-arg-store<Context, Args...> make_format_args(Args&&... fmt_args);

Preconditions: The type typename Context::template formatter_type<remove_cvref_t<

T_{i}

>>
meets the BasicFormatter requirements ([formatter.requirements]) for each

T_{i}

in Args.

Returns: An object of type format-arg-store<Context, Args...> whose args data member is initialized with {basic_format_arg<Context>(fmt_args)...}.

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template<class... Args>
  format-arg-store<wformat_context, Args...> make_wformat_args(Args&&... args);

Effects: Equivalent to: return make_format_args<wformat_context>(args...);