typeLimiter< D > Class Template Reference

Class for ensuring that variable of type D remains within limits of type S. More...

#include <TypeUtils.h>

Public Types
typedef D(*	value_t) (D)
	Definition that simplifies.

Static Public Member Functions
template<class S , class T >
static T	callback ()

Static Protected Member Functions
template<class S , class T >
static T	limitInteger (T x)
template<class S , class T >
static T	limitFloat (T x)

Detailed Description

template<class D>
class drain::typeLimiter< D >

Class for ensuring that variable of type D remains within limits of type S.

Returns a function pointer of type typeLimiter::value_t .

typedef drain::typeLimiter<double> Limiter;
Limiter::value_t limit = Type::call<typeLimiter>(t);  // t is type_info, char or std::string.
double d = limit(12345.6789);

With images of type drain::image::Image, use convenient function:

Limiter::value_t limit = img.getEncoding().getLimiter<double>();

Member Function Documentation

callback()

static T callback ( )

inlinestatic

Template Parameters

S	- type selector
T	- destination type

limitFloat()

static T limitFloat ( T  x )

inlinestaticprotected

Template Parameters

S	- type selector
T	- target value type (float or double)

limitInteger()

static T limitInteger ( T  x )

inlinestaticprotected

Template Parameters

S	- type selector
T	- target value type (integer type)

Note: expecting T > S, ie. S is a narrower basetype.

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

• src/drain/TypeUtils.h