arg_router::policy::program_version_t< S > Class Template Reference

#include <arg_router/policy/program_version.hpp>

Public Types
using	string_type = S

Public Member Functions
constexpr	program_version_t ([[maybe_unused]] S str={}) noexcept

Static Public Member Functions
constexpr static std::string_view	program_version () noexcept

Detailed Description

template<typename S>
class arg_router::policy::program_version_t< S >

Represents the program version string.

Used by help nodes to produce their output, though in principle can be used by anything that wants to.

If using C++17 then use the template variable helper with the S_ macro; for C++20 and higher, use the constructor directly with a compile-time string literal:

constexpr auto a = ar::policy::program_version<S_("hello")>;
constexpr auto b = ar::policy::program_version_t{"hello"_S};

Template Parameters

S	Compile-time string

Definition at line 25 of file program_version.hpp.

Member Typedef Documentation

string_type

template<typename S >

using arg_router::policy::program_version_t< S >::string_type = S

String type.

Definition at line 29 of file program_version.hpp.

Constructor & Destructor Documentation

program_version_t()

template<typename S >

constexpr arg_router::policy::program_version_t< S >::program_version_t ( [[maybe_unused] ] S  str = {} )

inlineexplicitconstexprnoexcept

Constructor.

Parameters

str	String instance

Definition at line 35 of file program_version.hpp.

Member Function Documentation

program_version()

template<typename S >

constexpr static std::string_view arg_router::policy::program_version_t< S >::program_version ( )

inlinestaticconstexprnoexcept

Returns the program version.

Returns

Program version

Definition at line 41 of file program_version.hpp.

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The documentation for this class was generated from the following file:

• arg_router/policy/program_version.hpp