Introduces most used data types. More...

#include <float.h>
#include <limits.h>
#include "_common.h"

Data Structures
struct	BBTypeKeyInfo
	Contains useful information about each type key. More...
Defines
#define	BBBYTE_MIN ((BBByte) 0x00)
	The minimum value a variable of type BBByte can hold.
#define	BBBYTE_MAX ((BBByte) 0xff)
	The maximum value a variable of type BBByte can hold.
#define	BBSHORT_MIN ((BBShort) 0x0000)
	The minimum value a variable of type BBShort can hold.
#define	BBSHORT_MAX ((BBShort) 0xffff)
	The maximum value a variable of type BBShort can hold.
#define	BBINT_MIN INT_MIN
	The minimum value a variable of type BBInt can hold.
#define	BBINT_MAX INT_MAX
	The maximum value a variable of type BBInt can hold.
#define	BBLONG_MIN ((BBLong) 0x800000000000000L)
	The minimum value a variable of type BBLong can hold.
#define	BBLONG_MAX ((BBLong) 0x7ffffffffffffffL)
	The maximum value a variable of type BBLong can hold.
#define	BBFLOAT_MIN ((BBFloat) -FLT_MAX)
	The minimum value a variable of type BBFloat can hold.
#define	BBFLOAT_MAX ((BBFloat) FLT_MAX)
	The maximum value a variable of type BBFloat can hold.
#define	BBDOUBLE_MIN ((BBDouble) -DBL_MAX)
	The minimum value a variable of type BBDouble can hold.
#define	BBDOUBLE_MAX ((BBDouble) DBL_MAX)
	The maximum value a variable of type BBDouble can hold.
#define	BBCHAR_MIN ((BBChar) 0x0000)
	The minimum value a variable of type BBChar can hold.
#define	BBCHAR_MAX ((BBChar) 0xffff)
	The maximum value a variable of type BBChar can hold.
#define	BBSIZE_MIN ((BBSIZE_MIN)0)
	The minimal value a variable of type BBSize can hold.
#define	BBTYPEKEY_ISVALID(key) ((key) >= BBTYPEKEY_VOID && (key) <= BBTYPEKEY_ARRAY)
	Checks if a type key is valid.
#define	BBTYPETAG_KEY(tag) bbToTypeKeyData[(tag)[0]]
	Gets the corresponding BBTypeKey for a type tag.
Typedefs
typedef unsigned char	BBByte
	The BlitzMax "Byte" data type.
typedef unsigned short	BBShort
	The BlitzMax "Short" data type.
typedef signed int	BBInt
	The BlitzMax "Int" data type.
typedef BBInt64	BBLong
	The BlitzMax "Long" data type.
typedef float	BBFloat
	The BlitzMax "Float" data type.
typedef double	BBDouble
	The BlitzMax "Double" data type.
typedef unsigned short	BBChar
	The BlitzMax internal character type.
Enumerations
enum	BBBool
	Boolean data type. More...
enum	BBTypeKey { BBTYPEKEY_BYTE, BBTYPEKEY_SHORT, BBTYPEKEY_INT, BBTYPEKEY_LONG, BBTYPEKEY_FLOAT, BBTYPEKEY_DOUBLE, BBTYPEKEY_POINTER, BBTYPEKEY_VOID, BBTYPEKEY_FUNCTION, BBTYPEKEY_OBJECT, BBTYPEKEY_STRING, BBTYPEKEY_ARRAY }
	An integer identifier mapping a type tag. More...
Variables
const BBTypeKeyInfo	bbTypeKeyInfo []
	Stores the TypeKey information for all known BlitzMax data types.

Detailed Description

Introduces most used data types.

BlitzMax has two kinds of data types: Primitive and complex types.

Primitive types store one value or a pointer to one. They include: BBByte, BBShort, BBInt, BBLong, BBFloat, BBDouble and BBChar

Complex data types are BlitzMax objects, consisting of a C struct to store the data and a BBClass that defines the functionality. They include: BBObject, BBString, BBArray and every user defined class

Author:: Mark Sibly; Fabian Niemann

Define Documentation

#define BBTYPEKEY_ISVALID ( key ) ((key) >= BBTYPEKEY_VOID && (key) <= BBTYPEKEY_ARRAY)

Checks if a type key is valid.

All known keys are considered to be valid.

Parameters:

key	The type key to check as an integer

Return values:

BBTRUE	if the key is valid
BBFALSE	if the key is not valid

#define BBTYPETAG_KEY ( tag ) bbToTypeKeyData[(tag)[0]]

Gets the corresponding BBTypeKey for a type tag.

See also:: BBTypeKey

Parameters:

tag	The type tag as a null-terminated string

Returns:: The corresponding type key

Referenced by bbArrayClone(), bbArrayCompare(), bbArrayEquals(), bbArrayFindDouble(), bbArrayFindFloat(), bbArrayFindInt(), bbArrayFindLong(), bbArrayFindObject(), bbArrayFindString(), bbArrayFromData(), bbArrayNew1D(), bbArrayReverse(), bbArrayRotate(), and bbArrayToString().

Typedef Documentation

typedef unsigned char BBByte

The BlitzMax "Byte" data type.

See also:: BBBYTE_MIN, BBBYTE_MAX

typedef unsigned short BBChar

The BlitzMax internal character type.

Represents a single UCS-2 character code.

See also:: BBCHAR_MIN, BBCHAR_MAX

typedef signed int BBInt

The BlitzMax "Int" data type.

See also:: BBINT_MIN, BBINT_MAX

typedef BBInt64 BBLong

The BlitzMax "Long" data type.

See also:: BBLONG_MIN, BBLONG_MAX

typedef unsigned short BBShort

The BlitzMax "Short" data type.

See also:: BBSHORT_MIN, BBSHORT_MAX

Enumeration Type Documentation

enum BBBool

Boolean data type.

Although BlitzMax does not have a designated boolean data type as of now, this is useful for improving readability.

See also:: BBTRUE, BBFALSE

Note:: In BlitzMax everything with a value 0 is considered 'False' and everything non-zero is considered 'True'. No matter the type.

enum BBTypeKey

An integer identifier mapping a type tag.

BlitzMax uses a system of null-terminated strings internally to inform about the type of an argument, for example in the array functions.

Sometimes it can be benefiticial to execution speed to just look up information about a data type in an array instead of checking by hand. The problem is, that by using the first letters of the type tag string as the array's keys would waste memory without need. Type keys solve this problem.

By mapping type tags to type keys you can create arrays containing extra information for each type without wasting precious memory.

Enumerator:

BBTYPEKEY_BYTE	Identifies the type BBByte.
BBTYPEKEY_SHORT	Identifies the type BBShort.
BBTYPEKEY_INT	Identifies the type BBInt.
BBTYPEKEY_LONG	Identifies the type BBLong.
BBTYPEKEY_FLOAT	Identifies the type BBFloat.
BBTYPEKEY_DOUBLE	Identifies the type BBDouble.
BBTYPEKEY_POINTER	Identifies a pointer to a variable.
BBTYPEKEY_VOID	Identifies the type void. Void can be used as a return type for functions.
BBTYPEKEY_FUNCTION	Identifies a function.
BBTYPEKEY_OBJECT	Identifies the type BBObject*.
BBTYPEKEY_STRING	Identifies the type BBString*.
BBTYPEKEY_ARRAY	Identifies the type BBArray*.

Variable Documentation

const BBTypeKeyInfo bbTypeKeyInfo[]

Stores the TypeKey information for all known BlitzMax data types.

See also:: BBTypeKeyInfo

Data Structures

Defines

Typedefs

Enumerations

Variables

Detailed Description

Define Documentation

Typedef Documentation

Enumeration Type Documentation

Variable Documentation