creativity::cmdargs::Validation< T > Class Template Reference

Validation wrapper base class. More...

#include <creativity/cmdargs/Validation.hpp>

Public Types
using	value_type = T
	The type T that this object validates.

Public Member Functions
	Validation (T v)
	Constructs with an initial value.
	operator const T & () const
	Implicit conversion to the stored value.
virtual	~Validation ()=default
	Virtual destructor.

Static Public Member Functions
static std::string	validationString ()
	Returns a string representation of this validation object.

Protected Attributes
T	val_
	The stored value.

Detailed Description

template<typename T>
class creativity::cmdargs::Validation< T >

Validation wrapper base class.

This base class does no actual value validation (except one, see below).

This should be inherited from virtually so that subclasses can inherit from multiple Validation subclasses to enforce multiple validations at once.

Note that there is one validation that occurs when using this: if T is an unsigned type, validation of a Validation (or derived class) makes sure the given value is not negative; without this, boost will cast negative input values to unsigned types, thus ending up with -1 becoming (for an unsigned int) 4294967295.

Inheritance diagram for creativity::cmdargs::Validation< T >:

Collaboration diagram for creativity::cmdargs::Validation< T >:

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

• creativity/cmdargs/Validation.hpp