STX Expression Parser: stx::AnyScalar Class Reference

List of all members.


Public Types
enum	attrtype_t { ATTRTYPE_INVALID = 0x00, ATTRTYPE_BOOL = 0x01, ATTRTYPE_CHAR = 0x10, ATTRTYPE_SHORT = 0x11, ATTRTYPE_INTEGER = 0x12, ATTRTYPE_LONG = 0x13, ATTRTYPE_BYTE = 0x20, ATTRTYPE_WORD = 0x21, ATTRTYPE_DWORD = 0x22, ATTRTYPE_QWORD = 0x23, ATTRTYPE_FLOAT = 0x30, ATTRTYPE_DOUBLE = 0x31, ATTRTYPE_STRING = 0x40 }
	Enumeration establishing identifiers for all supported types. More...
Public Member Functions
	AnyScalar (attrtype_t t=ATTRTYPE_INVALID)
	Create a new empty AnyScalar object of given type.
	AnyScalar (bool b)
	Construct a new AnyScalar object of type ATTRTYPE_BOOL and set the given boolean value.
	AnyScalar (char c)
	Construct a new AnyScalar object of type ATTRTYPE_CHAR and set the given char value.
	AnyScalar (short s)
	Construct a new AnyScalar object of type ATTRTYPE_SHORT and set the given short value.
	AnyScalar (int i)
	Construct a new AnyScalar object of type ATTRTYPE_INTEGER and set the given integer value.
	AnyScalar (long i)
	Construct a new AnyScalar object of type ATTRTYPE_INTEGER and set the given integer value.
	AnyScalar (long long l)
	Construct a new AnyScalar object of type ATTRTYPE_LONG and set the given long value.
	AnyScalar (unsigned char c)
	Construct a new AnyScalar object of type ATTRTYPE_BYTE and set the given unsigned value.
	AnyScalar (unsigned short s)
	Construct a new AnyScalar object of type ATTRTYPE_WORD and set the given unsigned value.
	AnyScalar (unsigned int i)
	Construct a new AnyScalar object of type ATTRTYPE_DWORD and set the given unsigned value.
	AnyScalar (unsigned long i)
	Construct a new AnyScalar object of type ATTRTYPE_DWORD and set the given unsigned value.
	AnyScalar (unsigned long long l)
	Construct a new AnyScalar object of type ATTRTYPE_QWORD and set the given unsigned value.
	AnyScalar (float f)
	Construct a new AnyScalar object of type ATTRTYPE_FLOAT and set the given floating point value.
	AnyScalar (double d)
	Construct a new AnyScalar object of type ATTRTYPE_DOUBLE and set the given floating point value.
	AnyScalar (const char *s)
	Construct a new AnyScalar object of type ATTRTYPE_STRING and set the given string value.
	AnyScalar (const std::string &s)
	Construct a new AnyScalar object of type ATTRTYPE_STRING and set the given string value.
	~AnyScalar ()
	Destroy the object: free associated string memory if necessary.
	AnyScalar (const AnyScalar &a)
	Copy-constructor to deal with enclosed strings.
AnyScalar &	operator= (const AnyScalar &a)
	Assignment operator to deal with enclosed strings.
bool	operator== (const AnyScalar &a) const
	Comparison operator.
bool	operator!= (const AnyScalar &a) const
	Comparison operator: Directly compares type _and_ value.
attrtype_t	getType () const
	Return the type identifier of the object.
bool	isBooleanType () const
	Returns true if this object contains a boolean value.
bool	isIntegerType () const
	Returns true if this object contains one of the integer types.
bool	isFloatingType () const
	Returns true if this object contains one of the floating point types.
bool	convertType (attrtype_t t)
	Attempts to convert the current type/value into the given type.
void	resetType (attrtype_t t)
	Changes the current type and resets the contents without attempting to convert the enclosed value.
std::string	getTypeString () const
	Returns a string for this AnyScalar's type.
int	getTypeLength () const
	Return the storage length of the type in bytes.
bool	isFixedLength () const
	Boolean check if this type is of fixed length.
unsigned int	getValueLength () const
	Return the storage length of this value (mark the different to getTypeLength()).
bool	setInteger (int i)
	Change the value of the current object to i.
bool	setLong (long long l)
	Change the value of the current object to l.
bool	setDouble (double d)
	Change the value of the current object to d.
bool	setString (const std::string &s)
	Change the value of the current object to s.
bool	setStringQuoted (const std::string &s)
	Change the value of the current object to s.
AnyScalar &	setAutoString (const std::string &input)
	Change the type _and_ value of the current object to s.
bool	getBoolean () const
	Return the value converted to a boolean.
int	getInteger () const
	Return the value converted to an integer.
unsigned int	getUnsignedInteger () const
	Return the value converted to an unsigned integer.
int	getInt () const
	Alias for getInteger().
unsigned int	getUInt () const
	Alias for getUnsignedInteger().
long long	getLong () const
	Return the value converted to a long integer.
unsigned long long	getUnsignedLong () const
	Return the value converted to an unsigned long integer.
unsigned long long	getULong () const
	Alias for getUnsignedLong().
double	getDouble () const
	Return the value converted to a double.
std::string	getString () const
	Return the value converted to a string.
std::string	getStringQuoted () const
	Return the value converted to a quoted string.
AnyScalar	operator- () const
	Unary prefix - operator.
AnyScalar	operator+ (const AnyScalar &b) const
	Instantiation of binary_arith_op for "+" plus.
AnyScalar	operator- (const AnyScalar &b) const
	Instantiation of binary_arith_op for "-" minus.
AnyScalar	operator * (const AnyScalar &b) const
	Instantiation of binary_arith_op for "*" multiplication.
AnyScalar	operator/ (const AnyScalar &b) const
	Instantiation of binary_arith_op for "/" division.
AnyScalar	add (const AnyScalar &b) const
	Alias for operator+ in script languages.
AnyScalar	subtract (const AnyScalar &b) const
	Alias for operator- in script languages.
AnyScalar	multiply (const AnyScalar &b) const
	Alias for operator* in script languages.
AnyScalar	divide (const AnyScalar &b) const
	Alias for operator/ in script languages.
bool	equal_to (const AnyScalar &b) const
	Instantiation of binary_comp_op for "==" equality.
bool	not_equal_to (const AnyScalar &b) const
	Instantiation of binary_comp_op for "!=" inequality.
bool	less (const AnyScalar &b) const
	Instantiation of binary_comp_op for "<" less-than.
bool	greater (const AnyScalar &b) const
	Instantiation of binary_comp_op for ">" greater-than.
bool	less_equal (const AnyScalar &b) const
	Instantiation of binary_comp_op for "<=" less-or-equal-than.
bool	greater_equal (const AnyScalar &b) const
	Instantiation of binary_comp_op for ">=" greater-or-equal-than.
Static Public Member Functions
static bool	isValidAttrtype (attrtype_t at)
	Returns true if the attrtype_t is a valid type identifier.
static attrtype_t	stringToType (const std::string &s)
	Returns the attrtype identifier of a string, throws ConversionException if s does not specify a valid type name.
static attrtype_t	stringToType (const char *s)
	Returns the attrtype identifier a string, throws ConversionException if it does not specify a valid type name.
static std::string	getTypeString (attrtype_t at)
	Returns a const char* for each attrtype_t.
static int	getTypeLength (attrtype_t t)
	Return the storage length of the type in bytes.
static bool	isFixedLength (attrtype_t t)
	Boolean check if this type is of fixed length.
Private Member Functions
template<template< typename Type > class Operator, char OpName>
AnyScalar	binary_arith_op (const AnyScalar &b) const
	Binary arithmetic template operator.
template<template< typename Type > class Operator, int OpNum>
bool	binary_comp_op (const AnyScalar &b) const
	Binary comparison template operator.
Private Attributes
attrtype_t	atype
	The currently set type in the union.
value_t	val
	Union holding the current value of set type.
Classes
union	value_t
	Union type to holding the current value of an AnyScalar. More...

Detailed Description

It supports boolean values, integer values both signed and unsigned, floating point values and strings. The class provides operators which will compare scalars between other scalars by converting them into a common domain. Furthermore arithmetic operator will compose one or two scalars where the calculation is done in the "higher" domain.

Member Enumeration Documentation

enum stx::AnyScalar::attrtype_t

Enumeration establishing identifiers for all supported types.

All "small" integer types are included, because the class use originally designed for serializing large amounts of data.

Enumerator:

ATTRTYPE_INVALID	Flag identifier for an uninitialized object.
ATTRTYPE_BOOL	A boolean type holding only true and false.
ATTRTYPE_CHAR	Character type, not viewed as a letter or digit, but as 8 bit signed integer.
ATTRTYPE_SHORT	Short signed integer type, 2 bytes long.
ATTRTYPE_INTEGER	Medium signed integer type, 4 bytes long.
ATTRTYPE_LONG	Long (long) signed integer type, 8 bytes long.
ATTRTYPE_BYTE	Byte type, not viewed as a letter or digit, but as 8 bit unsigned integer.
ATTRTYPE_WORD	Short unsigned integer type, 2 bytes long.
ATTRTYPE_DWORD	Medium unsigned integer type, 4 bytes long.
ATTRTYPE_QWORD	Long (long) unsigned integer type, 8 bytes long.
ATTRTYPE_FLOAT	Single precision floating point type, 4 bytes long.
ATTRTYPE_DOUBLE	Double precision floating point type, 8 bytes long.
ATTRTYPE_STRING	String type, variable length. Needs much extra care to handle memory allocation.

Definition at line 51 of file AnyScalar.h.

Constructor & Destructor Documentation

stx::AnyScalar::AnyScalar ( bool b ) [inline]

Construct a new AnyScalar object of type ATTRTYPE_BOOL and set the given boolean value.

Definition at line 145 of file AnyScalar.h.

References stx::AnyScalar::value_t::_int, and val.

stx::AnyScalar::AnyScalar ( char c ) [inline]

Construct a new AnyScalar object of type ATTRTYPE_CHAR and set the given char value.

Definition at line 155 of file AnyScalar.h.

References stx::AnyScalar::value_t::_int, and val.

stx::AnyScalar::AnyScalar ( short s ) [inline]

Construct a new AnyScalar object of type ATTRTYPE_SHORT and set the given short value.

Definition at line 163 of file AnyScalar.h.

References stx::AnyScalar::value_t::_int, and val.

stx::AnyScalar::AnyScalar ( int i ) [inline]

Construct a new AnyScalar object of type ATTRTYPE_INTEGER and set the given integer value.

Definition at line 170 of file AnyScalar.h.

References stx::AnyScalar::value_t::_int, and val.

stx::AnyScalar::AnyScalar ( long i ) [inline]

Construct a new AnyScalar object of type ATTRTYPE_INTEGER and set the given integer value.

Definition at line 177 of file AnyScalar.h.

References stx::AnyScalar::value_t::_int, and val.

stx::AnyScalar::AnyScalar ( long long l ) [inline]

Construct a new AnyScalar object of type ATTRTYPE_LONG and set the given long value.

Definition at line 184 of file AnyScalar.h.

References stx::AnyScalar::value_t::_long, and val.

stx::AnyScalar::AnyScalar ( unsigned char c ) [inline]

Construct a new AnyScalar object of type ATTRTYPE_BYTE and set the given unsigned value.

Definition at line 191 of file AnyScalar.h.

References stx::AnyScalar::value_t::_uint, and val.

stx::AnyScalar::AnyScalar ( unsigned short s ) [inline]

Construct a new AnyScalar object of type ATTRTYPE_WORD and set the given unsigned value.

Definition at line 198 of file AnyScalar.h.

References stx::AnyScalar::value_t::_uint, and val.

stx::AnyScalar::AnyScalar ( unsigned int i ) [inline]

Construct a new AnyScalar object of type ATTRTYPE_DWORD and set the given unsigned value.

Definition at line 205 of file AnyScalar.h.

References stx::AnyScalar::value_t::_uint, and val.

stx::AnyScalar::AnyScalar ( unsigned long i ) [inline]

Construct a new AnyScalar object of type ATTRTYPE_DWORD and set the given unsigned value.

Definition at line 212 of file AnyScalar.h.

References stx::AnyScalar::value_t::_uint, and val.

stx::AnyScalar::AnyScalar ( unsigned long long l ) [inline]

Construct a new AnyScalar object of type ATTRTYPE_QWORD and set the given unsigned value.

Definition at line 219 of file AnyScalar.h.

References stx::AnyScalar::value_t::_ulong, and val.

stx::AnyScalar::AnyScalar ( float f ) [inline]

Construct a new AnyScalar object of type ATTRTYPE_FLOAT and set the given floating point value.

Definition at line 226 of file AnyScalar.h.

References stx::AnyScalar::value_t::_float, and val.

stx::AnyScalar::AnyScalar ( double d ) [inline]

Construct a new AnyScalar object of type ATTRTYPE_DOUBLE and set the given floating point value.

Definition at line 233 of file AnyScalar.h.

References stx::AnyScalar::value_t::_double, and val.

stx::AnyScalar::AnyScalar ( const char * s ) [inline]

Construct a new AnyScalar object of type ATTRTYPE_STRING and set the given string value.

Definition at line 240 of file AnyScalar.h.

References stx::AnyScalar::value_t::_string, and val.

stx::AnyScalar::AnyScalar ( const std::string & s ) [inline]

Construct a new AnyScalar object of type ATTRTYPE_STRING and set the given string value.

Definition at line 250 of file AnyScalar.h.

References stx::AnyScalar::value_t::_string, and val.

stx::AnyScalar::AnyScalar ( const AnyScalar & a ) [inline]

Copy-constructor to deal with enclosed strings.

Transfers type and value.

Definition at line 267 of file AnyScalar.h.

References stx::AnyScalar::value_t::_double, stx::AnyScalar::value_t::_float, stx::AnyScalar::value_t::_int, stx::AnyScalar::value_t::_long, stx::AnyScalar::value_t::_string, stx::AnyScalar::value_t::_uint, stx::AnyScalar::value_t::_ulong, ATTRTYPE_BOOL, ATTRTYPE_BYTE, ATTRTYPE_CHAR, ATTRTYPE_DOUBLE, ATTRTYPE_DWORD, ATTRTYPE_FLOAT, ATTRTYPE_INTEGER, ATTRTYPE_INVALID, ATTRTYPE_LONG, ATTRTYPE_QWORD, ATTRTYPE_SHORT, ATTRTYPE_STRING, ATTRTYPE_WORD, atype, and val.

Member Function Documentation

AnyScalar& stx::AnyScalar::operator= ( const AnyScalar & a ) [inline]

Assignment operator to deal with enclosed strings.

Transfers type and value.

Definition at line 312 of file AnyScalar.h.

bool stx::AnyScalar::operator== ( const AnyScalar & a ) const

Comparison operator.

Directly compares type _and_ value. Does NOT attempt to convert the values into a common domain.

Definition at line 38 of file AnyScalar.cc.

bool stx::AnyScalar::operator!= ( const AnyScalar & a ) const [inline]

Comparison operator: Directly compares type _and_ value.

Does NOT attempt to convert the values into a common domain.

Definition at line 373 of file AnyScalar.h.

bool stx::AnyScalar::convertType ( attrtype_t t )

Attempts to convert the current type/value into the given type.

Returns false if the value could not be represented in the new type, the new type is set nonetheless. See the getXXX below on how the new value is computed from the old type.

Definition at line 1132 of file AnyScalar.cc.

Referenced by binary_arith_op(), binary_comp_op(), stx::Grammar::PNCastExpr::evaluate(), stx::Grammar::PNCastExpr::evaluate_const(), and operator-().

void stx::AnyScalar::resetType ( attrtype_t t )

Changes the current type and resets the contents without attempting to convert the enclosed value.

Definition at line 1113 of file AnyScalar.cc.

References stx::AnyScalar::value_t::_string, stx::AnyScalar::value_t::_ulong, ATTRTYPE_STRING, atype, and val.

Referenced by setAutoString().

static attrtype_t stx::AnyScalar::stringToType ( const std::string & s ) [inline, static]

Returns the attrtype identifier of a string, throws ConversionException if s does not specify a valid type name.

Definition at line 421 of file AnyScalar.h.

Referenced by stx::Grammar::build_expr().

AnyScalar::attrtype_t stx::AnyScalar::stringToType ( const char * s ) [static]

Returns the attrtype identifier a string, throws ConversionException if it does not specify a valid type name.

Definition at line 80 of file AnyScalar.cc.

References ATTRTYPE_BOOL, ATTRTYPE_BYTE, ATTRTYPE_CHAR, ATTRTYPE_DOUBLE, ATTRTYPE_DWORD, ATTRTYPE_FLOAT, ATTRTYPE_INTEGER, ATTRTYPE_LONG, ATTRTYPE_QWORD, ATTRTYPE_SHORT, ATTRTYPE_STRING, and ATTRTYPE_WORD.

int stx::AnyScalar::getTypeLength ( ) const [inline]

Return the storage length of the type in bytes.

Beware that getTypeLength(bool) == 0.

Definition at line 443 of file AnyScalar.h.

References atype.

Referenced by isFixedLength().

int stx::AnyScalar::getTypeLength ( attrtype_t t ) [static]

Return the storage length of the type in bytes.

Beware that getTypeLength(bool) == 0.

Definition at line 165 of file AnyScalar.cc.

References ATTRTYPE_BOOL, ATTRTYPE_BYTE, ATTRTYPE_CHAR, ATTRTYPE_DOUBLE, ATTRTYPE_DWORD, ATTRTYPE_FLOAT, ATTRTYPE_INTEGER, ATTRTYPE_INVALID, ATTRTYPE_LONG, ATTRTYPE_QWORD, ATTRTYPE_SHORT, ATTRTYPE_STRING, and ATTRTYPE_WORD.

bool stx::AnyScalar::setInteger ( int i )

Change the value of the current object to i.

Converting the integer to this object's type if necessary.

boolean: the integer i is cut to 0 or 1.
char: cut to -128..127 returns false if out of range.
short: cut to -32768..32767 return false if out of range.
byte: cut to 0..255 returns false if out of range.
word: cut to 0..65536 returns false if out of range.
int: no conversion.
dword: cut to 0..4294967295 return false if it was negative.
long: no cutting necessary.
qword: cut to positive number.
float: integer stored as floating point
double: integer stored as floating point
string: integer is stringified.

Definition at line 266 of file AnyScalar.cc.

Referenced by setDouble(), and setString().

bool stx::AnyScalar::setLong ( long long l )

Change the value of the current object to l.

Converting the long long integer to this object's type if necessary. If the long long does not fully fit into the current type, then this function returns false.

boolean: the long i is cut to 0 or 1.
char: cut to -128..127 returns false if out of range.
short: cut to -32768..32767 return false if out of range.
int: cut to -2147483646..2147483647 returns false if out of range.
byte: cut to 0..255 returns false if out of range.
word: cut to 0..65536 returns false if out of range.
dword: cut to 0..4294967295 return false if out of range.
long: no conversion
qword: cut to positive number.
float: long stored as floating point
double: long stored as floating point
string: long is stringified.

Definition at line 357 of file AnyScalar.cc.

Referenced by setDouble(), and setString().

bool stx::AnyScalar::setDouble ( double d )

Change the value of the current object to d.

Converting the floating point to this object's type if necessary.

boolean: [0:0.5] is false, (0.5:1] is true. else true and return false.
char: truncated to integer ranged -128..127 returns false if out of range.
short: truncated to integer ranged -32768..32767 return false if out of range.
int: truncated to integer ranged -2147483646..2147483647 returns false if out of range.
byte: truncated to integer ranged 0..255 returns false if out of range.
word: truncated to integer ranged 0..65536 returns false if out of range.
dword: truncated to integer ranged 0..4294967295 return false if out of range.
long: truncated to integer ranged -9223372036854775806..9223372036854775807
qword: truncated to integer ranged 0..18446744073709551615
float: truncated to single-precision
double: no conversion
string: double is stringified.

Definition at line 449 of file AnyScalar.cc.

References stx::AnyScalar::value_t::_double, stx::AnyScalar::value_t::_float, stx::AnyScalar::value_t::_int, stx::AnyScalar::value_t::_string, ATTRTYPE_BOOL, ATTRTYPE_BYTE, ATTRTYPE_CHAR, ATTRTYPE_DOUBLE, ATTRTYPE_DWORD, ATTRTYPE_FLOAT, ATTRTYPE_INTEGER, ATTRTYPE_INVALID, ATTRTYPE_LONG, ATTRTYPE_QWORD, ATTRTYPE_SHORT, ATTRTYPE_STRING, ATTRTYPE_WORD, atype, setInteger(), setLong(), and val.

bool stx::AnyScalar::setString ( const std::string & s )

Change the value of the current object to s.

Converting the string to this object's type if necessary. If this string cannot be converted to say an integer, then this function returns false.

boolean: "0", "f", "false", "n" and "no" are false, "1", "t", "true", "y" and "yes" are true. else returns false.
char: string read using strtol and truncated to -128..127 returns false if out of range or unparseable.
short: string read using strtol and truncated to -32768..32767 returns false if out of range or unparseable.
int: string read using strtol returns false if out of range or unparseable.
long: string read using strtoll returns false if out of range or unparseable.
byte: string read using strtoul and truncated to 0..255 returns false if out of range or unparseable.
word: string read using strtoul and truncated to 0..65535 returns false if out of range or unparseable.
dword: string read using strtoul returns false if out of range or unparseable.
qword: string read using strtoull returns false if out of range or unparseable.
float: string read using strtod and converted to single-precision returns false if unparseable.
double: string read using strtod returns false if unparseable.
string: no conversion

Definition at line 503 of file AnyScalar.cc.

Referenced by stx::Grammar::PNConstant::PNConstant(), and setStringQuoted().

bool stx::AnyScalar::setStringQuoted ( const std::string & s )

Change the value of the current object to s.

This string s must be quoted: "str". This function resolves escape sequences like
.

Definition at line 604 of file AnyScalar.cc.

References setString().

Referenced by stx::Grammar::PNConstant::PNConstant().

AnyScalar & stx::AnyScalar::setAutoString ( const std::string & input )

Change the type _and_ value of the current object to s.

The current type is set if the given string can be converted to an integer or a floating point number. This was required because e.g. the usual input from files or perl are all untyped strings. The following input conversions are tested and yield the given types:

boolean: no boolean strings are matched!
int: input was readable by strtoll and is small enough.
long: input was readable by strtoll
double: input was readble by strtod
string: all above failed.

Returns:: reference to this for chaining.

Definition at line 649 of file AnyScalar.cc.

References stx::AnyScalar::value_t::_double, stx::AnyScalar::value_t::_int, stx::AnyScalar::value_t::_long, stx::AnyScalar::value_t::_string, ATTRTYPE_DOUBLE, ATTRTYPE_INTEGER, ATTRTYPE_LONG, ATTRTYPE_STRING, resetType(), and val.

bool stx::AnyScalar::getBoolean ( ) const

Return the value converted to a boolean.

If the enclosed value could not be converted this function throws a ConversionException.

boolean: no conversion
char/short/int/long: test integer != 0
byte/word/dword/qword: test integer != 0
float/double: test float != 0.0
string: "0", "f", "false", "n", "no" are false, "1", "t", "true", "y", "yes" are true other strings throw ConversionException.

Definition at line 696 of file AnyScalar.cc.

Referenced by convertType().

int stx::AnyScalar::getInteger ( ) const

Return the value converted to an integer.

If the enclosed value could not be converted this function throws a ConversionException.

boolean: returns 0 or 1.
char/short/int: return the integer
byte/word/dword: return the integer (possibly as a negative number)
long: cut to -2147483646..2147483647.
qword: cut to 0..4294967295
float/double: machine-conversion floating point to integer
string: Attempt to strtol the string, throws ConversionException if this fails.

Definition at line 750 of file AnyScalar.cc.

Referenced by binary_arith_op(), binary_comp_op(), convertType(), stx::Grammar::PNBinaryLogicExpr::evaluate(), stx::Grammar::PNBinaryLogicExpr::evaluate_const(), and getInt().

unsigned int stx::AnyScalar::getUnsignedInteger ( ) const

Return the value converted to an unsigned integer.

If the enclosed value could not be converted this function throws a ConversionException.

boolean: returns 0 or 1.
char/short/int: return the integer (possibly representing a negative number as positive)
byte/word/dword: return the unsigned integer
long: cut to 0..4294967295 (also misrepresenting because of machine-conversion)
qword: cut to 0..4294967295
float/double: machine-conversion floating point to unsigned integer.
string: Attempt to strtoul the string, throws ConversionException if this fails.

Definition at line 803 of file AnyScalar.cc.

Referenced by convertType(), and getUInt().

long long stx::AnyScalar::getLong ( ) const

Return the value converted to a long integer.

If the enclosed value could not be converted this function throws a ConversionException.

boolean: returns 0 or 1.
char/short/int: return the integer (possibly representing a negative number as positive)
byte/word/dword: return the unsigned integer
long: no conversion
qword: return the integer (possibly converting a large long to a negative)
float/double: machine-conversion floating point to long long.
string: Attempt to strtoll the string, throws ConversionException if this fails.

Definition at line 850 of file AnyScalar.cc.

References stx::AnyScalar::value_t::_double, stx::AnyScalar::value_t::_float, stx::AnyScalar::value_t::_int, stx::AnyScalar::value_t::_long, stx::AnyScalar::value_t::_string, stx::AnyScalar::value_t::_ulong, ATTRTYPE_BOOL, ATTRTYPE_BYTE, ATTRTYPE_CHAR, ATTRTYPE_DOUBLE, ATTRTYPE_DWORD, ATTRTYPE_FLOAT, ATTRTYPE_INTEGER, ATTRTYPE_INVALID, ATTRTYPE_LONG, ATTRTYPE_QWORD, ATTRTYPE_SHORT, ATTRTYPE_STRING, ATTRTYPE_WORD, atype, and val.

Referenced by binary_arith_op(), binary_comp_op(), and convertType().

unsigned long long stx::AnyScalar::getUnsignedLong ( ) const

Return the value converted to an unsigned long integer.

If the enclosed value could not be converted this function throws a ConversionException.

boolean: returns 0 or 1.
char/short/int: return the integer (possibly representing a negative number as positive)
byte/word/dword: return the unsigned integer
long: return the long (possibly interpreting a negative long as a large positive)
qword: no conversion
float/double: machine-conversion floating point to unsigned long long.
string: Attempt to strtoull the string, throws ConversionException if this fails.

Definition at line 899 of file AnyScalar.cc.

Referenced by binary_comp_op(), and getULong().

double stx::AnyScalar::getDouble ( ) const

Return the value converted to a double.

If the enclosed value could not be converted this function throws a ConversionException.

boolean: returns 0 or 1.0.
char/short/int/long: return the integer as a float
byte/word/dword/qword: return the unsigned integer as a float
float: cast to double.
double: no conversion
string: Attempt to strtod the string, throws ConversionException if this fails.

Definition at line 949 of file AnyScalar.cc.

References stx::AnyScalar::value_t::_double, stx::AnyScalar::value_t::_float, stx::AnyScalar::value_t::_int, stx::AnyScalar::value_t::_long, stx::AnyScalar::value_t::_string, stx::AnyScalar::value_t::_ulong, ATTRTYPE_BOOL, ATTRTYPE_BYTE, ATTRTYPE_CHAR, ATTRTYPE_DOUBLE, ATTRTYPE_DWORD, ATTRTYPE_FLOAT, ATTRTYPE_INTEGER, ATTRTYPE_INVALID, ATTRTYPE_LONG, ATTRTYPE_QWORD, ATTRTYPE_SHORT, ATTRTYPE_STRING, ATTRTYPE_WORD, atype, and val.

Referenced by binary_arith_op(), binary_comp_op(), and convertType().

std::string stx::AnyScalar::getString ( ) const

Return the value converted to a string.

This function never throws ConversionException.

boolean: returns "false" or "true"
char/short/int/long: return the integer as a string using boost::lexical_cast
byte/word/dword/qword: return the unsigned integer as a string using boost::lexical_cast
float/double: return float as a string using boost::lexical_cast
string: return the string.

Definition at line 993 of file AnyScalar.cc.

Referenced by convertType(), getStringQuoted(), stx::operator<<(), and stx::Grammar::PNConstant::toString().

std::string stx::AnyScalar::getStringQuoted ( ) const

Return the value converted to a quoted string.

This function never throws ConversionException. It calls getString() and adds " and escape sequences.

Definition at line 1051 of file AnyScalar.cc.

References getString().

Referenced by stx::Grammar::PNConstant::toString().

AnyScalar stx::AnyScalar::operator- ( ) const

Unary prefix - operator.

Attempts to convert the AnyScalar to a numeric value.

bool: invert the boolean value
char/short/int/long: switch sign
byte/word/dword/qword: negated the number even tho it doesn't make sense.
float/double: switch sign
string: attempt to convert the string to a double and negate it! May throw a ConversionException

Definition at line 1232 of file AnyScalar.cc.

References stx::AnyScalar::value_t::_double, stx::AnyScalar::value_t::_float, stx::AnyScalar::value_t::_int, stx::AnyScalar::value_t::_long, stx::AnyScalar::value_t::_uint, stx::AnyScalar::value_t::_ulong, ATTRTYPE_BOOL, ATTRTYPE_BYTE, ATTRTYPE_CHAR, ATTRTYPE_DOUBLE, ATTRTYPE_DWORD, ATTRTYPE_FLOAT, ATTRTYPE_INTEGER, ATTRTYPE_INVALID, ATTRTYPE_LONG, ATTRTYPE_QWORD, ATTRTYPE_SHORT, ATTRTYPE_STRING, ATTRTYPE_WORD, atype, convertType(), and val.

template<template< typename Type > class Operator, char OpName>

AnyScalar stx::AnyScalar::binary_arith_op ( const AnyScalar & b ) const [inline, private]

Binary arithmetic template operator.

Converts the two AnyScalars into the largest type of their common field. If a string cannot be converted to a numeric of the same field as the other operand a ConversionException is thrown.

Conversion chart: * signifies the operator

bool * (any): ConversionException. Don't consider boolean as the field F_2.
char|short|int * char|short|int: return AnyScalar is an integer.
byte|word|dword * char|short|int: returned AnyScalar is a signed integer.
byte|word|dword * byte|word|dword: returned AnyScalar is an unsigned integer.
long * char|short|int|long|byte|word|dword|qword: returned AnyScalar is a signed long (long).
qword * char|short|int|long: : returned AnyScalar is a signed long (long).
qword * byte|word|dword|qword: : returned AnyScalar is an unsigned long (long).
float|double * char|short|int|long|byte|word|dword|qword: calculate as floating point number
string * char|short|int: convert string to integer, calculate as signed integer.
string * byte|word|dword: convert string to unsigned integer, calculate as unsigned integer.
string * long: convert string to long integer, calculate as long.
string * qword: convert string to unsigned long integer, calculate as unsigned long.
string * float|double: convert string to floating point, calculate as floating point.
string * string: only valid for "+" operator as string concatenation.

Definition at line 1289 of file AnyScalar.cc.

References stx::AnyScalar::value_t::_double, stx::AnyScalar::value_t::_float, stx::AnyScalar::value_t::_int, stx::AnyScalar::value_t::_long, stx::AnyScalar::value_t::_string, stx::AnyScalar::value_t::_uint, stx::AnyScalar::value_t::_ulong, AnyScalar(), ATTRTYPE_BOOL, ATTRTYPE_BYTE, ATTRTYPE_CHAR, ATTRTYPE_DOUBLE, ATTRTYPE_DWORD, ATTRTYPE_FLOAT, ATTRTYPE_INTEGER, ATTRTYPE_INVALID, ATTRTYPE_LONG, ATTRTYPE_QWORD, ATTRTYPE_SHORT, ATTRTYPE_STRING, ATTRTYPE_WORD, atype, convertType(), getDouble(), getInteger(), getLong(), and val.

Referenced by operator-(), and operator/().

template<template< typename Type > class Operator, int OpNum>

bool stx::AnyScalar::binary_comp_op ( const AnyScalar & b ) const [inline, private]

Binary comparison template operator.

Converts the two AnyScalars into the largest type of their common field. If a string cannot be converted to a numeric of the same field as the other operand a ConversionException is thrown. Operator is the STL operator class. OpNum is an identifier for the operator name string within the template.

Conversion chart: * signifies the operator

bool * bool: usual comparison
bool * (any): ConversionException. Don't consider boolean as the field F_2.

char|short|int * char|short|int: compare as signed integers.
byte|word|dword * char|short|int: compare as signed integers.
byte|word|dword * byte|word|dword: compare as unsigned integers.
long * char|short|int|long|byte|word|dword|qword: compare as signed long integer
qword * char|short|int|long: : compare as signed long integer
qword * byte|word|dword|qword: : compare an unsigned long (long).
float|double * char|short|int|long|byte|word|dword|qword: compare as floating point numbers
string * char|short|int: convert string to integer, compare as signed integer.
string * byte|word|dword: convert string to unsigned integer, compare as unsigned integer.
string * long: convert string to long integer, compare as long.
string * qword: convert string to unsigned long integer, compare as unsigned long.
string * float|double: convert string to floating point, compare as floating point.
string * string: usual string comparison operators.

Definition at line 1816 of file AnyScalar.cc.

stx::AnyScalar Class Reference

Public Types

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Classes

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation