xtd::box_char< type_t > Class Template Reference

Inheritance diagram for xtd::box_char< type_t >:

Definition

template<class type_t>
class xtd::box_char< type_t >

Represents a boxed char object.

class box_char : public xtd::box_integer<type_t>

Inheritance

xtd::object → xtd::box <type_t> → xtd::box_integer <type_t> → xtd::box_char <type_t>

Header

#include <xtd/box_char>

Namespace

xtd

Library

xtd.core

Remarks

You can use xtd::box to represent a class or structure that does not inherit from xtd::object. Typically used for integral types.

Use xtd::boxing to box an object.

Use xtd::unboxing to unbox an object.

For more information about types, see Native types, boxing and unboxing.

Examples

The following example shows how to create and use xtd::box_char<char8>.

auto stringer = [](const object& value) {return value.to_string();};
char8 unboxed_object = u8'a';
box_char<char8> boxed_object = unboxed_object;
auto result = stringer(boxed_object);
console::write_line("result = {}", result); // Display: result = a;

Public Static Methods
static bool	is_ascii (type_t c) noexcept
	Returns true if c is an ASCII character ([ U+0000..U+007F ]).
static bool	is_ascii (const string &s, size_t index)
	Indicates whether the character at the specified position in a specified string is an ASCII character ([ U+0000..U+007F ]).
static bool	is_control (type_t c) noexcept
	Indicates whether the specified Unicode character is categorized as a control character.
static bool	is_control (const string &s, size_t index)
	Indicates whether the character at the specified position in a specified string is categorized as a control character.
static bool	is_digit (type_t c) noexcept
	Indicates whether the specified Unicode character is categorized as a decimal digit.
static bool	is_digit (const string &s, size_t index)
	Indicates whether the character at the specified position in a specified string is categorized as a decimal digit.
static bool	is_letter (type_t c) noexcept
	Indicates whether the specified Unicode character is categorized as a Unicode letter.
static bool	is_letter (const string &s, size_t index)
	Indicates whether the character at the specified position in a specified string is categorized as a Unicode letter.
static bool	is_letter_or_digit (type_t c) noexcept
	Indicates whether a Unicode character is categorized as a letter or a decimal digit.
static bool	is_letter_or_digit (const string &s, size_t index)
	Indicates whether the character at the specified position in a specified string is categorized as a letter or a decimal digit.
static bool	is_lower (type_t c) noexcept
	ndicates whether the specified Unicode character is categorized as a lowercase letter.
static bool	is_lower (const string &s, size_t index)
	Indicates whether the character at the specified position in a specified string is categorized as a lowercase letter.
static bool	is_number (type_t c) noexcept
	Indicates whether a Unicode character is categorized as a number.
static bool	is_number (const string &s, size_t index)
	Indicates whether the character at the specified position in a specified string is categorized as a number.
static bool	is_punctuation (type_t c) noexcept
	Indicates whether the specified Unicode character is categorized as a punctuation mark.
static bool	is_punctuation (const string &s, size_t index)
	Indicates whether the character at the specified position in a specified string is categorized as a punctuation mark.
static bool	is_separator (type_t c) noexcept
	Indicates whether the specified Unicode character is categorized as a separator character.
static bool	is_separator (const string &s, size_t index)
	Indicates whether the character at the specified position in a specified string is categorized as a separator character.
static bool	is_symbol (type_t c) noexcept
	Indicates whether the specified Unicode character is categorized as a symbol character.
static bool	is_symbol (const string &s, size_t index)
	Indicates whether the character at the specified position in a specified string is categorized as a symbol character.
static bool	is_upper (type_t c) noexcept
	Indicates whether the specified Unicode character is categorized as an uppercase letter.
static bool	is_upper (const string &s, size_t index)
	Indicates whether the character at the specified position in a specified string is categorized as an uppercase letter.
static bool	is_white_space (type_t c) noexcept
	Indicates whether the specified Unicode character is categorized as white space.
static bool	is_white_space (const string &s, size_t index)
	Indicates whether the character at the specified position in a specified string is categorized as white space.
static char	to_lower (type_t c) noexcept
	Converts the value of a Unicode character to its lowercase equivalent.
static char	to_upper (type_t c) noexcept
	Converts the value of a Unicode character to its uppercase equivalent.

Additional Inherited Members
using	value_type
using	reference
	Represents the reference type.
using	const_reference
	Represents the cont reference type.
using	pointer
	Represents the reference type.
using	const_pointer
	Represents the cont reference type.
value_type	value
	Gets or sets the underlying value.
static constexpr type_t	max_value
	Represents the largest possible value of type_t. This field is constant.
static constexpr type_t	min_value
	Represents the smallest possible value of type_t. This field is constant.
	box ()=default
	Initialize a new xtd::box object.
	box (const_reference value)
	Initialize a new xtd::box object with specified value.
template<class ... args_t>
	box (args_t &&...args)
	Initialize a new xtd::box object with specified value.
	operator value_type () const noexcept
	Cast operator to the value type.
int32	compare_to (const box &value) const noexcept override
	Compares the current instance with another object of the same type.
bool	equals (const object &obj) const noexcept override
	Determines whether the specified object is equal to the current object.
bool	equals (const box &value) const noexcept override
	Indicates whether the current object is equal to another object of the same type.
xtd::size	get_hash_code () const noexcept override
	Serves as a hash function for a particular type.
xtd::string	to_string () const noexcept override
	Returns a xtd::string that represents the current object.
xtd::string	to_string (const xtd::string &format) const
	Converts the value of this instance to its equivalent string representation, using the specified format.
xtd::string	to_string (const xtd::string &format, const globalization::culture_info &culture) const override
	Converts the value of this instance to its equivalent string representation, using the specified format, and locale.
	object ()=default
	Create a new instance of the ultimate base class object.
virtual type_object	get_type () const noexcept
	Gets the type of the current instance.
template<class object_t>
xtd::unique_ptr_object< object_t >	memberwise_clone () const
	Creates a shallow copy of the current object.
virtual int32	compare_to (const type_t &obj) const noexcept=0
	Compares the current instance with another object of the same type.
virtual bool	equals (const type_t &) const noexcept=0
	Indicates whether the current object is equal to another object of the same type.
static type_t	parse (const xtd::string &value, xtd::number_styles styles)
	Converts the string to its type_t equivalent.
static bool	try_parse (const xtd::string &value, type_t &result, xtd::number_styles styles)
	Converts the string to its type_t equivalent.
static value_type	parse (const xtd::string &value)
	Converts the string to its value_type equivalent.
static bool	try_parse (const xtd::string &value, reference result) noexcept
	Converts the string to its value_type equivalent. A return value indicates whether the conversion succeeded or failed.
template<class object_a_t, class object_b_t>
static bool	equals (const object_a_t &object_a, const object_b_t &object_b) noexcept
	Determines whether the specified object instances are considered equal.
template<class object_a_t, class object_b_t>
static bool	reference_equals (const object_a_t &object_a, const object_b_t &object_b) noexcept
	Determines whether the specified object instances are the same instance.

Member Function Documentation

is_ascii() [1/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_ascii ( type_t c )

inlinestaticnoexcept

Returns true if c is an ASCII character ([ U+0000..U+007F ]).

Parameters

c	The character to analyze.

Returns

true if c is an ASCII character; false otherwise.

is_ascii() [2/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_ascii ( const string & s, size_t index )

inlinestatic

Indicates whether the character at the specified position in a specified string is an ASCII character ([ U+0000..U+007F ]).

Parameters

s	A string.
index	The position of the character to evaluate in s.

Returns

true if the character at position index in s is n ASCII character; otherwise, false.

Exceptions

xtd::argument_out_of_range_exception

index is greater than the last position in s.

is_control() [1/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_control ( type_t c )

inlinestaticnoexcept

Indicates whether the specified Unicode character is categorized as a control character.

Parameters

c	The Unicode character to evaluate.

Returns

true if c is a control character; otherwise, false.

is_control() [2/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_control ( const string & s, size_t index )

inlinestatic

Indicates whether the character at the specified position in a specified string is categorized as a control character.

Parameters

s	A string.
index	The position of the character to evaluate in s.

Returns

true if the character at position index in s is a control character; otherwise, false.

Exceptions

xtd::argument_out_of_range_exception

index is greater than the last position in s.

is_digit() [1/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_digit ( type_t c )

inlinestaticnoexcept

Indicates whether the specified Unicode character is categorized as a decimal digit.

Parameters

c	The Unicode character to evaluate.

Returns

true if c is a decimal digit; otherwise, false.

Remarks

This method determines whether a type_tis a radix-10 digit. This contrasts with is_number, which determines whether a Char is of any numeric Unicode category. Numbers include characters such as fractions, subscripts, superscripts, Roman numerals, currency numerators, encircled numbers, and script-specific digits.

is_digit() [2/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_digit ( const string & s, size_t index )

inlinestatic

Indicates whether the character at the specified position in a specified string is categorized as a decimal digit.

Parameters

s	A string.
index	The position of the character to evaluate in s.

Returns

true if the character at position index in s is decimal digit; otherwise, false.

Exceptions

xtd::argument_out_of_range_exception

index is greater than the last position in s.

is_letter() [1/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_letter ( type_t c )

inlinestaticnoexcept

Indicates whether the specified Unicode character is categorized as a Unicode letter.

Parameters

c	The Unicode character to evaluate.

Returns

true if c is a letter; otherwise, false.

is_letter() [2/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_letter ( const string & s, size_t index )

inlinestatic

Indicates whether the character at the specified position in a specified string is categorized as a Unicode letter.

Parameters

s	A string.
index	The position of the character to evaluate in s.

Returns

true if the character at position index in s is a letter; otherwise, false.

Exceptions

xtd::argument_out_of_range_exception

index is greater than the last position in s.

is_letter_or_digit() [1/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_letter_or_digit ( type_t c )

inlinestaticnoexcept

Indicates whether a Unicode character is categorized as a letter or a decimal digit.

Parameters

c	The Unicode character to evaluate.

Returns

true if c is a letter or a decimal digit; otherwise, false.

is_letter_or_digit() [2/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_letter_or_digit ( const string & s, size_t index )

inlinestatic

Indicates whether the character at the specified position in a specified string is categorized as a letter or a decimal digit.

Parameters

s	A string.
index	The position of the character to evaluate in s.

Returns

true if the character at position index in s is a letter or a decimal digit; otherwise, false.

Exceptions

xtd::argument_out_of_range_exception

index is greater than the last position in s.

is_lower() [1/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_lower ( type_t c )

inlinestaticnoexcept

ndicates whether the specified Unicode character is categorized as a lowercase letter.

Parameters

c	The Unicode character to evaluate.

Returns

true if c is a lowercase letter; otherwise, false.

is_lower() [2/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_lower ( const string & s, size_t index )

inlinestatic

Indicates whether the character at the specified position in a specified string is categorized as a lowercase letter.

Parameters

s	A string.
index	The position of the character to evaluate in s.

Returns

true if the character at position index in s is a lowercase letter; otherwise, false.

Exceptions

xtd::argument_out_of_range_exception

index is greater than the last position in s.

is_number() [1/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_number ( type_t c )

inlinestaticnoexcept

Indicates whether a Unicode character is categorized as a number.

Parameters

c	The Unicode character to evaluate.

Returns

true if c is a number; otherwise, false.

is_number() [2/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_number ( const string & s, size_t index )

inlinestatic

Indicates whether the character at the specified position in a specified string is categorized as a number.

Parameters

s	A string.
index	The position of the character to evaluate in s.

Returns

true if the character at position index in s is a number; otherwise, false.

Exceptions

xtd::argument_out_of_range_exception

index is greater than the last position in s.

is_punctuation() [1/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_punctuation ( type_t c )

inlinestaticnoexcept

Indicates whether the specified Unicode character is categorized as a punctuation mark.

Parameters

c	The Unicode character to evaluate.

Returns

true if c is a punctuation mark; otherwise, false.

is_punctuation() [2/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_punctuation ( const string & s, size_t index )

inlinestatic

Indicates whether the character at the specified position in a specified string is categorized as a punctuation mark.

Parameters

s	A string.
index	The position of the character to evaluate in s.

Returns

true if the character at position index in s is categorized as a punctuation mark.

Exceptions

xtd::argument_out_of_range_exception

index is greater than the last position in s.

is_separator() [1/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_separator ( type_t c )

inlinestaticnoexcept

Indicates whether the specified Unicode character is categorized as a separator character.

Parameters

c	The Unicode character to evaluate.

Returns

true if c is a separator character; otherwise, false.

is_separator() [2/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_separator ( const string & s, size_t index )

inlinestatic

Indicates whether the character at the specified position in a specified string is categorized as a separator character.

Parameters

s	A string.
index	The position of the character to evaluate in s.

Returns

true if the character at position index in s is categorized as a separator character.

Exceptions

xtd::argument_out_of_range_exception

index is greater than the last position in s.

is_symbol() [1/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_symbol ( type_t c )

inlinestaticnoexcept

Indicates whether the specified Unicode character is categorized as a symbol character.

Parameters

c	The Unicode character to evaluate.

Returns

true if c is a symbol character; otherwise, false.

is_symbol() [2/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_symbol ( const string & s, size_t index )

inlinestatic

Indicates whether the character at the specified position in a specified string is categorized as a symbol character.

Parameters

s	A string.
index	The position of the character to evaluate in s.

Returns

true if the character at position index in s is a symbol character; otherwise, false.

Exceptions

xtd::argument_out_of_range_exception

index is greater than the last position in s.

is_upper() [1/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_upper ( type_t c )

inlinestaticnoexcept

Indicates whether the specified Unicode character is categorized as an uppercase letter.

Parameters

c	The Unicode character to evaluate.

Returns

true if c is an uppercase letter; otherwise, false.

is_upper() [2/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_upper ( const string & s, size_t index )

inlinestatic

Indicates whether the character at the specified position in a specified string is categorized as an uppercase letter.

Parameters

s	A string.
index	The position of the character to evaluate in s.

Returns

true if the character at position index in s is an uppercase letter; otherwise, false.

Exceptions

xtd::argument_out_of_range_exception

index is greater than the last position in s.

is_white_space() [1/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_white_space ( type_t c )

inlinestaticnoexcept

Indicates whether the specified Unicode character is categorized as white space.

Parameters

c	The Unicode character to evaluate.

Returns

true if c is white space; otherwise, false.

is_white_space() [2/2]

template<class type_t>

static bool xtd::box_char< type_t >::is_white_space ( const string & s, size_t index )

inlinestatic

Indicates whether the character at the specified position in a specified string is categorized as white space.

Parameters

s	A string.
index	The position of the character to evaluate in s.

Returns

true if the character at position index in s is white space; otherwise, false.

Exceptions

xtd::argument_out_of_range_exception

index is greater than the last position in s.

to_lower()

template<class type_t>

static char xtd::box_char< type_t >::to_lower ( type_t c )

inlinestaticnoexcept

Converts the value of a Unicode character to its lowercase equivalent.

Parameters

c	The Unicode character to convert.

Returns

The lowercase equivalent of c, or the unchanged value of c, if c is already lowercase or not alphabetic.

to_upper()

template<class type_t>

static char xtd::box_char< type_t >::to_upper ( type_t c )

inlinestaticnoexcept

Converts the value of a Unicode character to its uppercase equivalent.

Parameters

c	The Unicode character to convert.

Returns

The uppercase equivalent of c, or the unchanged value of c if c is already uppercase, has no uppercase equivalent, or is not alphabetic.

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

• xtd.core/include/xtd/box_char.hpp