argument_base.hh File Reference

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Classes
struct	cli::SpecMemberTag
	Base tag for all members that may appear in an argument specification struct. More...
struct	cli::OptionTag
	Tag base class for command-line option/flag fields. More...
struct	cli::PositionalTag
	Tag base class for positional argument fields. More...
struct	cli::CommandTag
	Tag base class for subcommand fields. More...
struct	cli::DescriptionTag
	Tag base class for the Description field that provides the CLI's help text. More...
struct	cli::Nargs
	Specifies the minimum and maximum number of values an option or positional accepts. More...

Namespaces
namespace	cli
namespace	cli::nargs

Enumerations
enum class	cli::Presence { cli::required , cli::optional }
	Controls whether an option or positional argument is mandatory. More...

Variables
constexpr auto	cli::required = Presence::required
	Convenience constant for Presence::required.
constexpr auto	cli::optional = Presence::optional
	Convenience constant for Presence::optional.
constexpr Nargs	cli::nargs::none {.min = 0, .max = 0}
	Accepts no values; used for boolean flags.
constexpr Nargs	cli::nargs::one {.min = 1, .max = 1}
	Accepts exactly one value.
constexpr Nargs	cli::nargs::zero_or_one {.min = 0, .max = 1}
	Accepts zero or one value.
constexpr Nargs	cli::nargs::zero_or_more {.min = 0, .max = -1}
	Accepts zero or more values.
constexpr Nargs	cli::nargs::one_or_more {.min = 1, .max = -1}
	Accepts one or more values.
template<int N>
constexpr Nargs	cli::nargs::exactly {.min = N, .max = N}
template<int Min, int Max>
constexpr Nargs	cli::nargs::between {.min = Min, .max = Max}