Inheritance diagram for Field_real:

Public Member Functions
	Field_real (uchar ptr_arg, uint32 len_arg, uchar null_ptr_arg, uchar null_bit_arg, utype unireg_check_arg, const char *field_name_arg, uint8 dec_arg, bool zero_arg, bool unsigned_arg)
type_conversion_status	store_decimal (const my_decimal *)
type_conversion_status	store_time (MYSQL_TIME *ltime, uint8 dec)
my_decimal *	val_decimal (my_decimal *)
bool	get_date (MYSQL_TIME *ltime, uint fuzzydate)
bool	get_time (MYSQL_TIME *ltime)
bool	truncate (double *nr, double max_length)
uint32	max_display_length ()
virtual const uchar *	unpack (uchar to, const uchar from, uint param_data, bool low_byte_first)
virtual uchar *	pack (uchar to, const uchar from, uint max_length, bool low_byte_first)
Public Attributes
my_bool	not_fixed

Member Function Documentation

uchar * Field_real::pack	(	uchar *	to,
		const uchar *	from,
		uint	max_length,
		bool	low_byte_first
	)		`[virtual]`

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Reimplemented from Field.

Reimplemented in Field_decimal.

type_conversion_status Field_real::store_decimal ( const my_decimal * val ) [virtual]

Storing decimal in integer fields.

Parameters:

val	value for storing

Note:: This method is used by all integer fields, real/decimal redefine it

Return values:

TYPE_OK	Storage of value went fine without warnings or errors
!TYPE_OK	Warning/error as indicated by type_conversion_status enum value

Reimplemented from Field_num.

type_conversion_status Field_real::store_time	(	MYSQL_TIME *	ltime,
		uint8	dec_arg
	)		`[virtual]`

Store MYSQL_TIME value with the given amount of decimal digits into a field.

Note, the "dec" parameter represents number of digits of the Item that previously created the MYSQL_TIME value. It's needed when we store the value into a CHAR/VARCHAR/TEXT field to display the proper amount of fractional digits. For other field types the "dec" value does not matter and is ignored.

Parameters:

ltime	Time, date or datetime value.
dec	Number of decimals in ltime.

Return values:

false	on success
true	on error

This is called when storing a date in a string.

Note:: Needs to be changed if/when we want to support different time formats.

Reimplemented from Field_num.

const uchar * Field_real::unpack	(	uchar *	to,
		const uchar *	from,
		uint	param_data,
		bool	low_byte_first
	)		`[virtual]`

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Reimplemented from Field.

Reimplemented in Field_decimal.

my_decimal * Field_real::val_decimal ( my_decimal * decimal_value ) [virtual]

Return decimal value of integer field.

Parameters:

decimal_value buffer for storing decimal value

Note:: This method is used by all integer fields, real/decimal redefine it. All longlong values fit in our decimal buffer which cal store 8*9=72 digits of integer number

Returns:: pointer to decimal buffer with value of field

Reimplemented from Field_num.

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

Public Member Functions

Public Attributes

Member Function Documentation