TypeUtils Struct Reference

Collaboration diagram for TypeUtils:

Static Public Member Functions
static const std::type_info &	guessType (const std::string &value)
	Given a string, check if it could be stored as int or double instead of std::string .
static const std::type_info &	guessType (double d, const std::type_info &type=typeid(unsigned char))
	Returns the (loosely) minimal type that could store the value without precision loss.
template<class C >
static const std::type_info &	guessArrayType (const C &container)
	Given a vector or list of strings, suggest a matching storage type (int, double, std::string).
template<typename T , typename S >
static bool	isWithinRange (const S &x)
template<typename S >
static bool	isWithinRange (const S &x, const std::type_info &type)
template<typename T = unsigned char>
static const std::type_info &	minimizeIntType (double value)
	Return a minimal numeric type, that can contain a numeric value.
static const std::type_info &	minimizeIntType (double value, const std::type_info &type=typeid(unsigned char))
	Return a minimal numeric type, that can contain a numeric value.

Static Public Attributes
static const drain::RegExp	trueRegExp
static const drain::RegExp	falseRegExp
static const drain::RegExp	numeralRegExp

Member Function Documentation

guessArrayType()

template<class C >

const std::type_info & guessArrayType ( const C &  l )

static

Given a vector or list of strings, suggest a matching storage type (int, double, std::string).

Template Parameters

C	- contrainer, esp. std::list or std::vector

Starting from uchar, rising until

Contains at least one string

Contains at least one decimal value

Contains only true and \false values

guessType()

const std::type_info & guessType ( const std::string &  value )

static

Given a string, check if it could be stored as int or double instead of std::string .

Returns

- std::type_info in priority order: int, double, std::string.

Testing string '-123.456e+789' yields

0 = -123.456e+789 1 = '-123' 2 = '.456' 3 = 'e+789'

isWithinRange() [1/2]

template<typename T , typename S >

static bool isWithinRange ( const S &  x )

inlinestatic

Template Parameters

T	- range-tested type
S	- source type

isWithinRange() [2/2]

template<typename S >

static bool isWithinRange ( const S &  x, const std::type_info &  type  )

inlinestatic

Template Parameters

T	- range-tested type
S	- source type

minimizeIntType() [1/2]

template<typename T = unsigned char>

static const std::type_info & minimizeIntType ( double  value )

inlinestatic

Return a minimal numeric type, that can contain a numeric value.

Parameters

value

- numeric value to be tested

Template Parameters

T	- minimal type allowed, for example short int.

minimizeIntType() [2/2]

const std::type_info & minimizeIntType ( double  value, const std::type_info &  type = typeid(unsigned char)  )

static

Return a minimal numeric type, that can contain a numeric value.

Parameters

value	- numeric value to be tested
type	- minimal type allowed

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The documentation for this struct was generated from the following files:

• src/drain/TypeUtils.h
• src/drain/TypeUtils.cpp