Sawyer::CommandLine::RealNumberParser< T > Class Template Reference

Description

template<typename T>
class Sawyer::CommandLine::RealNumberParser< T >

Parses a real number and converts it to numeric type T.

Matches a real number in the mathematical sense in C++ floating-point representation, and attempts to convert it to the type T. If the real number cannot be converted to type T then an std::range_error is thrown, which is most likely caught by higher layers of the library and converted to an std::runtime_error with additional information about the failure. The syntax is that which is recognized by the strtod function, plus trailing white space.

See also

realNumberParser factory, and Command line parser factories.

Definition at line 1123 of file Sawyer/CommandLine.h.

#include <Sawyer/CommandLine.h>

Inheritance diagram for Sawyer::CommandLine::RealNumberParser< T >:

Collaboration diagram for Sawyer::CommandLine::RealNumberParser< T >:

Public Types
typedef SharedPointer< RealNumberParser >	Ptr
	Reference counting pointer for this class.
Public Types inherited from Sawyer::CommandLine::ValueParser
typedef SharedPointer< ValueParser >	Ptr
	Reference counting pointer for this class.

Static Public Member Functions
static Ptr	instance ()
	Allocating constructor.
static Ptr	instance (const ValueSaver::Ptr &valueSaver)
	Allocating constructor.

Protected Member Functions
	RealNumberParser ()
	Constructor for derived classes.
	RealNumberParser (const ValueSaver::Ptr &valueSaver)
	Constructor for derived classes.
Protected Member Functions inherited from Sawyer::CommandLine::ValueParser
	ValueParser ()
	Constructor for derived classes.
	ValueParser (const ValueSaver::Ptr &valueSaver)
	Constructor for derived classes.

Additional Inherited Members
Public Member Functions inherited from Sawyer::CommandLine::ValueParser
ParsedValue	matchString (const std::string &)
	Parse the entire string and return a value.
ParsedValue	match (Cursor &)
	Parse a value from the beginning of the specified string.
Ptr	valueSaver (const ValueSaver::Ptr &f)
	Property: functor responsible for saving a parsed value in user storage.
const ValueSaver::Ptr	valueSaver () const
	Property: functor responsible for saving a parsed value in user storage.
Public Member Functions inherited from Sawyer::SharedObject
	SharedObject ()
	Default constructor.
	SharedObject (const SharedObject &)
	Copy constructor.
virtual	~SharedObject ()
	Virtual destructor.
SharedObject &	operator= (const SharedObject &)
	Assignment.
Public Member Functions inherited from Sawyer::SharedFromThis< ValueParser >
SharedPointer< ValueParser >	sharedFromThis ()
	Create a shared pointer from this.
SharedPointer< const ValueParser >	sharedFromThis () const
	Create a shared pointer from this.

Member Typedef Documentation

Ptr

template<typename T >

typedef SharedPointer<RealNumberParser> Sawyer::CommandLine::RealNumberParser< T >::Ptr

Reference counting pointer for this class.

Definition at line 1132 of file Sawyer/CommandLine.h.

Constructor & Destructor Documentation

RealNumberParser() [1/2]

template<typename T >

Sawyer::CommandLine::RealNumberParser< T >::RealNumberParser ( )

inlineprotected

Constructor for derived classes.

Non-subclass users should use instance instead.

Definition at line 1126 of file Sawyer/CommandLine.h.

Referenced by Sawyer::CommandLine::RealNumberParser< T >::instance().

RealNumberParser() [2/2]

template<typename T >

Sawyer::CommandLine::RealNumberParser< T >::RealNumberParser ( const ValueSaver::Ptr &  valueSaver )

inlineprotected

Constructor for derived classes.

Non-subclass users should use instance instead.

Definition at line 1129 of file Sawyer/CommandLine.h.

Member Function Documentation

instance() [1/2]

template<typename T >

static Ptr Sawyer::CommandLine::RealNumberParser< T >::instance ( )

inlinestatic

Allocating constructor.

Returns a pointer to a new RealNumberParser object. Uses will most likely want to use the realNumberParser factory instead, which requires less typing.

See also

Command line parser factories

Definition at line 1137 of file Sawyer/CommandLine.h.

Referenced by Sawyer::CommandLine::realNumberParser(), and Sawyer::CommandLine::realNumberParser().

instance() [2/2]

template<typename T >

static Ptr Sawyer::CommandLine::RealNumberParser< T >::instance ( const ValueSaver::Ptr &  valueSaver )

inlinestatic

Allocating constructor.

Returns a pointer to a new RealNumberParser object. Uses will most likely want to use the realNumberParser factory instead, which takes the same arguments, but requires less typing.

See also

Command line parser factories

Definition at line 1142 of file Sawyer/CommandLine.h.

References Sawyer::CommandLine::RealNumberParser< T >::RealNumberParser(), and Sawyer::CommandLine::ValueParser::valueSaver().

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

• Sawyer/CommandLine.h