palindrome_tester< Char, Traits > Class Template Reference

List of all members.

Public Types
typedef std::basic_string < Char, Traits >	string
	Convenience typedef.
Public Member Functions
	palindrome_tester (std::locale &locale)
bool	isalpha (Char c) const
Char	lowercase (Char c) const
bool	operator() (string const &str) const

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Detailed Description

template<class Char, class Traits = std::char_traits<Char>>
class palindrome_tester< Char, Traits >

Class to test for a palindrome. I converted the functions to a class so I could cache the ctype facet.

Definition at line 16 of file palindrome.cpp.

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Constructor & Destructor Documentation

template<class Char, class Traits = std::char_traits<Char>>

palindrome_tester< Char, Traits >::palindrome_tester

(

std::locale &

locale

)

[inline]

Construct the palindrome tester for the given locale. Cache the locale to use for testing characters.

Parameters:

locale

The locale to use for interpreting characters

Definition at line 26 of file palindrome.cpp.

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Member Function Documentation

template<class Char, class Traits = std::char_traits<Char>>

bool palindrome_tester< Char, Traits >::isalpha

(

Char

c

)

const [inline]

Test for non-letter.

Parameters:

c

the character to test

Returns:

true if ch is not a letter

Definition at line 35 of file palindrome.cpp.

Referenced by palindrome_tester< Char, Traits >::operator()().

template<class Char, class Traits = std::char_traits<Char>>

Char palindrome_tester< Char, Traits >::lowercase

(

Char

c

)

const [inline]

Convert to lowercase. Use a canonical form by converting to uppercase first, and then to lowercase.

Parameters:

c

the character to convert

Returns:

the character converted to lowercase

Definition at line 43 of file palindrome.cpp.

Referenced by palindrome_tester< Char, Traits >::operator()().

template<class Char, class Traits = std::char_traits<Char>>

bool palindrome_tester< Char, Traits >::operator()

(

string const &

str

)

const [inline]

Determine whether str is a palindrome. Only letter characters are tested. Spaces and punctuation don't count. Empty strings are not palindromes because that's just too easy.

Parameters:

str

the string to test

Returns:

true if str is the same forward and backward

Definition at line 51 of file palindrome.cpp.

References palindrome_tester< Char, Traits >::isalpha(), and palindrome_tester< Char, Traits >::lowercase().

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

• palindrome.cpp

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