xtc
Class Limits

java.lang.Object
  xtc.Limits

public class Limits
extends java.lang.Object

The platform-dependent C type limits.

To recreate this class, compile limits.c in the same directory as this interface and run the resulting executable while piping standard output to Limits.java.

The rank for pointer difference, sizeof, and wide character types reflects the ordering char, short, int, long, and long long, starting at 1 and ignoring the sign. This program requires that the __PTRDIFF_TYPE__, __SIZE_TYPE__, and __WCHAR_TYPE__ preprocessor macros are defined.

Version:

$Revision: 1.44 $

Author:

Robert Grimm

Field Summary

static java.lang.String	ARCH The processor architecture.
static java.math.BigInteger	ARRAY_MAX The maximum size of fixed size arrays.
static int	BOOL_ALIGN The alignment of boolean types.
static int	BOOL_NAT_ALIGN The natural alignment of boolean types.
static int	BOOL_SIZE The size of boolean types.
static int	CHAR_BITS The bit width of char types.
static java.math.BigInteger	CHAR_MAX The maximum value of signed char types.
static java.math.BigInteger	CHAR_MIN The minimum value of signed char types.
static java.lang.String	COMPILER_NAME The name of the C compiler.
static java.lang.String	COMPILER_VERSION The C compiler version.
static int	COMPILER_VERSION_MAJOR The major C compiler version.
static int	COMPILER_VERSION_MINOR The minor C compiler version.
static int	DOUBLE_ALIGN The alignment of double types.
static int	DOUBLE_NAT_ALIGN The natural alignment of double types.
static int	DOUBLE_SIZE The size of double types.
static int	FLOAT_ALIGN The alignment of float types.
static int	FLOAT_NAT_ALIGN The natural alignment of float types.
static int	FLOAT_SIZE The size of float types.
static int	FUNCTION_ALIGN The alignment of function types.
static int	FUNCTION_SIZE The size of function types.
static int	INT_ALIGN The alignment of int types.
static java.math.BigInteger	INT_MAX The maximum value of signed int types.
static java.math.BigInteger	INT_MIN The minimum value of signed int types.
static int	INT_NAT_ALIGN The natural alignment of int types.
static int	INT_SIZE The size of int types.
static boolean	IS_BIG_ENDIAN The flag for whether the machine is big endian.
static boolean	IS_CHAR_SIGNED The flag for whether char is signed.
static boolean	IS_ELF The flag for the ELF object format.
static boolean	IS_INT_SIGNED The flag for whether int is signed in bit-fields.
static boolean	IS_STRING_CONST The flag for whether string literals consist of const char elements.
static boolean	IS_WCHAR_SIGNED The flag for whether wchar_t is signed.
static int	LONG_ALIGN The alignment of long types.
static int	LONG_DOUBLE_ALIGN The alignment of long double types.
static int	LONG_DOUBLE_NAT_ALIGN The natural alignment of long double types.
static int	LONG_DOUBLE_SIZE The size of long double types.
static int	LONG_LONG_ALIGN The alignment of long long types.
static java.math.BigInteger	LONG_LONG_MAX The maximum value of signed long long types.
static java.math.BigInteger	LONG_LONG_MIN The minimum value of signed long long types.
static int	LONG_LONG_NAT_ALIGN The natural alignment of long long types.
static int	LONG_LONG_SIZE The size of long long types.
static java.math.BigInteger	LONG_MAX The maximum value of signed long types.
static java.math.BigInteger	LONG_MIN The minimum value of signed long types.
static int	LONG_NAT_ALIGN The natural alignment of long types.
static int	LONG_SIZE The size of long types.
static java.lang.String	OS The name and version of the operating system.
static int	POINTER_ALIGN The alignment of pointer types.
static int	POINTER_NAT_ALIGN The natural alignment of pointer types.
static int	POINTER_SIZE The size of pointer types.
static int	PTRDIFF_RANK The rank of pointer difference types.
static int	PTRDIFF_SIZE The size of pointer difference types.
static int	SHORT_ALIGN The alignment of short types.
static java.math.BigInteger	SHORT_MAX The maximum value of signed short types.
static java.math.BigInteger	SHORT_MIN The minimum value of signed short types.
static int	SHORT_NAT_ALIGN The natural alignment of short types.
static int	SHORT_SIZE The size of short types.
static int	SIZEOF_RANK The rank of sizeof expressions.
static int	SIZEOF_SIZE The size of sizeof expressions.
static java.math.BigInteger	UCHAR_MAX The maximum value of unsigned char types.
static java.math.BigInteger	UINT_MAX The maximum value of unsigned int types.
static java.math.BigInteger	ULONG_LONG_MAX The maximum value of unsigned long long types.
static java.math.BigInteger	ULONG_MAX The maximum value of unsigned long types.
static java.math.BigInteger	USHORT_MAX The maximum value of unsigned short types.
static int	VOID_ALIGN The alignment of void types.
static int	VOID_SIZE The size of void types.
static int	WCHAR_RANK The rank of wide character types.
static int	WCHAR_SIZE The size of wide char types.

Method Summary

static boolean	fitsChar(java.math.BigInteger value) Determine whether the specified value fits into a char.
static boolean	fitsInt(java.math.BigInteger value) Determine whether the specified value fits into an int.
static boolean	fitsLong(java.math.BigInteger value) Determine whether the specified value fits into a long.
static boolean	fitsLongLong(java.math.BigInteger value) Determine whether the specified value fits into a long long.
static boolean	fitsShort(java.math.BigInteger value) Determine whether the specified value fits into a short.
static boolean	fitsUnsignedChar(java.math.BigInteger value) Determine whether the specified value fits into an unsigned char.
static boolean	fitsUnsignedInt(java.math.BigInteger value) Determine whether the specified value fits into an unsigned int.
static boolean	fitsUnsignedLong(java.math.BigInteger value) Determine whether the specified value fits into an unsigned long.
static boolean	fitsUnsignedLongLong(java.math.BigInteger value) Determine whether the specified value fits into an unsigned long long.
static boolean	fitsUnsignedShort(java.math.BigInteger value) Determine whether the specified value fits into an unsigned short.
static java.math.BigInteger	maskAsInt(java.math.BigInteger value) Mask the specified value as a signed int.
static java.math.BigInteger	maskAsLong(java.math.BigInteger value) Mask the specified value as a signed long.
static java.math.BigInteger	maskAsLongLong(java.math.BigInteger value) Mask the specified value as a signed long long.
static java.math.BigInteger	maskAsShort(java.math.BigInteger value) Mask the specified value as a signed short.
static java.math.BigInteger	maskAsSignedChar(java.math.BigInteger value) Mask the specified value as a signed char.
static java.math.BigInteger	maskAsUnsignedChar(java.math.BigInteger value) Mask the specified value as an unsigned char.
static java.math.BigInteger	maskAsUnsignedInt(java.math.BigInteger value) Mask the specified value as an unsigned int.
static java.math.BigInteger	maskAsUnsignedLong(java.math.BigInteger value) Mask the specified value as an unsigned long.
static java.math.BigInteger	maskAsUnsignedLongLong(java.math.BigInteger value) Mask the specified value as an unsigned long long.
static java.math.BigInteger	maskAsUnsignedShort(java.math.BigInteger value) Mask the specified value as an unsigned short.
static long	toWidth(long size) Convert the specified size to the corresponding bit width.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

OS

public static final java.lang.String OS

The name and version of the operating system.

See Also:

Constant Field Values

ARCH

public static final java.lang.String ARCH

The processor architecture.

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Constant Field Values

IS_ELF

public static final boolean IS_ELF

The flag for the ELF object format.

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Constant Field Values

COMPILER_NAME

public static final java.lang.String COMPILER_NAME

The name of the C compiler.

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Constant Field Values

COMPILER_VERSION

public static final java.lang.String COMPILER_VERSION

The C compiler version.

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Constant Field Values

COMPILER_VERSION_MAJOR

public static final int COMPILER_VERSION_MAJOR

The major C compiler version.

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Constant Field Values

COMPILER_VERSION_MINOR

public static final int COMPILER_VERSION_MINOR

The minor C compiler version.

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Constant Field Values

IS_BIG_ENDIAN

public static final boolean IS_BIG_ENDIAN

The flag for whether the machine is big endian.

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Constant Field Values

VOID_SIZE

public static final int VOID_SIZE

The size of void types.

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Constant Field Values

VOID_ALIGN

public static final int VOID_ALIGN

The alignment of void types.

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Constant Field Values

FUNCTION_SIZE

public static final int FUNCTION_SIZE

The size of function types.

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Constant Field Values

FUNCTION_ALIGN

public static final int FUNCTION_ALIGN

The alignment of function types.

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Constant Field Values

POINTER_SIZE

public static final int POINTER_SIZE

The size of pointer types.

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Constant Field Values

POINTER_ALIGN

public static final int POINTER_ALIGN

The alignment of pointer types.

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Constant Field Values

POINTER_NAT_ALIGN

public static final int POINTER_NAT_ALIGN

The natural alignment of pointer types.

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Constant Field Values

PTRDIFF_SIZE

public static final int PTRDIFF_SIZE

The size of pointer difference types.

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Constant Field Values

PTRDIFF_RANK

public static final int PTRDIFF_RANK

The rank of pointer difference types.

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Constant Field Values

SIZEOF_SIZE

public static final int SIZEOF_SIZE

The size of sizeof expressions.

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Constant Field Values

SIZEOF_RANK

public static final int SIZEOF_RANK

The rank of sizeof expressions.

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Constant Field Values

ARRAY_MAX

public static final java.math.BigInteger ARRAY_MAX

The maximum size of fixed size arrays.

BOOL_SIZE

public static final int BOOL_SIZE

The size of boolean types.

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Constant Field Values

BOOL_ALIGN

public static final int BOOL_ALIGN

The alignment of boolean types.

See Also:

Constant Field Values

BOOL_NAT_ALIGN

public static final int BOOL_NAT_ALIGN

The natural alignment of boolean types.

See Also:

Constant Field Values

IS_CHAR_SIGNED

public static final boolean IS_CHAR_SIGNED

The flag for whether char is signed.

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Constant Field Values

CHAR_BITS

public static final int CHAR_BITS

The bit width of char types.

See Also:

Constant Field Values

CHAR_MIN

public static final java.math.BigInteger CHAR_MIN

The minimum value of signed char types.

CHAR_MAX

public static final java.math.BigInteger CHAR_MAX

The maximum value of signed char types.

UCHAR_MAX

public static final java.math.BigInteger UCHAR_MAX

The maximum value of unsigned char types.

IS_WCHAR_SIGNED

public static final boolean IS_WCHAR_SIGNED

The flag for whether wchar_t is signed.

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Constant Field Values

WCHAR_SIZE

public static final int WCHAR_SIZE

The size of wide char types.

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Constant Field Values

WCHAR_RANK

public static final int WCHAR_RANK

The rank of wide character types.

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Constant Field Values

IS_STRING_CONST

public static final boolean IS_STRING_CONST

The flag for whether string literals consist of const char elements.

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Constant Field Values

SHORT_SIZE

public static final int SHORT_SIZE

The size of short types.

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Constant Field Values

SHORT_ALIGN

public static final int SHORT_ALIGN

The alignment of short types.

See Also:

Constant Field Values

SHORT_NAT_ALIGN

public static final int SHORT_NAT_ALIGN

The natural alignment of short types.

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Constant Field Values

SHORT_MIN

public static final java.math.BigInteger SHORT_MIN

The minimum value of signed short types.

SHORT_MAX

public static final java.math.BigInteger SHORT_MAX

The maximum value of signed short types.

USHORT_MAX

public static final java.math.BigInteger USHORT_MAX

The maximum value of unsigned short types.

IS_INT_SIGNED

public static final boolean IS_INT_SIGNED

The flag for whether int is signed in bit-fields.

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Constant Field Values

INT_SIZE

public static final int INT_SIZE

The size of int types.

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Constant Field Values

INT_ALIGN

public static final int INT_ALIGN

The alignment of int types.

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Constant Field Values

INT_NAT_ALIGN

public static final int INT_NAT_ALIGN

The natural alignment of int types.

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Constant Field Values

INT_MIN

public static final java.math.BigInteger INT_MIN

The minimum value of signed int types.

INT_MAX

public static final java.math.BigInteger INT_MAX

The maximum value of signed int types.

UINT_MAX

public static final java.math.BigInteger UINT_MAX

The maximum value of unsigned int types.

LONG_SIZE

public static final int LONG_SIZE

The size of long types.

See Also:

Constant Field Values

LONG_ALIGN

public static final int LONG_ALIGN

The alignment of long types.

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Constant Field Values

LONG_NAT_ALIGN

public static final int LONG_NAT_ALIGN

The natural alignment of long types.

See Also:

Constant Field Values

LONG_MIN

public static final java.math.BigInteger LONG_MIN

The minimum value of signed long types.

LONG_MAX

public static final java.math.BigInteger LONG_MAX

The maximum value of signed long types.

ULONG_MAX

public static final java.math.BigInteger ULONG_MAX

The maximum value of unsigned long types.

LONG_LONG_SIZE

public static final int LONG_LONG_SIZE

The size of long long types.

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Constant Field Values

LONG_LONG_ALIGN

public static final int LONG_LONG_ALIGN

The alignment of long long types.

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Constant Field Values

LONG_LONG_NAT_ALIGN

public static final int LONG_LONG_NAT_ALIGN

The natural alignment of long long types.

See Also:

Constant Field Values

LONG_LONG_MIN

public static final java.math.BigInteger LONG_LONG_MIN

The minimum value of signed long long types.

LONG_LONG_MAX

public static final java.math.BigInteger LONG_LONG_MAX

The maximum value of signed long long types.

ULONG_LONG_MAX

public static final java.math.BigInteger ULONG_LONG_MAX

The maximum value of unsigned long long types.

FLOAT_SIZE

public static final int FLOAT_SIZE

The size of float types.

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Constant Field Values

FLOAT_ALIGN

public static final int FLOAT_ALIGN

The alignment of float types.

See Also:

Constant Field Values

FLOAT_NAT_ALIGN

public static final int FLOAT_NAT_ALIGN

The natural alignment of float types.

See Also:

Constant Field Values

DOUBLE_SIZE

public static final int DOUBLE_SIZE

The size of double types.

See Also:

Constant Field Values

DOUBLE_ALIGN

public static final int DOUBLE_ALIGN

The alignment of double types.

See Also:

Constant Field Values

DOUBLE_NAT_ALIGN

public static final int DOUBLE_NAT_ALIGN

The natural alignment of double types.

See Also:

Constant Field Values

LONG_DOUBLE_SIZE

public static final int LONG_DOUBLE_SIZE

The size of long double types.

See Also:

Constant Field Values

LONG_DOUBLE_ALIGN

public static final int LONG_DOUBLE_ALIGN

The alignment of long double types.

See Also:

Constant Field Values

LONG_DOUBLE_NAT_ALIGN

public static final int LONG_DOUBLE_NAT_ALIGN

The natural alignment of long double types.

See Also:

Constant Field Values

Method Detail

toWidth

public static long toWidth(long size)

Convert the specified size to the corresponding bit width.

Parameters:

size - The size.

Returns:

The corresponding bit width.

fitsChar

public static boolean fitsChar(java.math.BigInteger value)

Determine whether the specified value fits into a char.

Parameters:

value - The value.

Returns:

true if the value fits into a char.

fitsUnsignedChar

public static boolean fitsUnsignedChar(java.math.BigInteger value)

Determine whether the specified value fits into an unsigned char.

Parameters:

value - The value.

Returns:

true if the value fits into an unsigned char.

fitsShort

public static boolean fitsShort(java.math.BigInteger value)

Determine whether the specified value fits into a short.

Parameters:

value - The value.

Returns:

true if the value fits into a short.

fitsUnsignedShort

public static boolean fitsUnsignedShort(java.math.BigInteger value)

Determine whether the specified value fits into an unsigned short.

Parameters:

value - The value.

Returns:

true if the value fits into an unsigned short.

fitsInt

public static boolean fitsInt(java.math.BigInteger value)

Determine whether the specified value fits into an int.

Parameters:

value - The value.

Returns:

true if the value fits into an int.

fitsUnsignedInt

public static boolean fitsUnsignedInt(java.math.BigInteger value)

Determine whether the specified value fits into an unsigned int.

Parameters:

value - The value.

Returns:

true if the value fits into an unsigned int.

fitsLong

public static boolean fitsLong(java.math.BigInteger value)

Determine whether the specified value fits into a long.

Parameters:

value - The value.

Returns:

true if the value fits into a long.

fitsUnsignedLong

public static boolean fitsUnsignedLong(java.math.BigInteger value)

Determine whether the specified value fits into an unsigned long.

Parameters:

value - The value.

Returns:

true if the value fits into an unsigned long.

fitsLongLong

public static boolean fitsLongLong(java.math.BigInteger value)

Determine whether the specified value fits into a long long.

Parameters:

value - The value.

Returns:

true if the value fits into a long long.

fitsUnsignedLongLong

public static boolean fitsUnsignedLongLong(java.math.BigInteger value)

Determine whether the specified value fits into an unsigned long long.

Parameters:

value - The value.

Returns:

true if the value fits into an unsigned long long.

maskAsSignedChar

public static java.math.BigInteger maskAsSignedChar(java.math.BigInteger value)

Mask the specified value as a signed char.

Parameters:

value - The value.

Returns:

The value as a signed char.

maskAsUnsignedChar

public static java.math.BigInteger maskAsUnsignedChar(java.math.BigInteger value)

Mask the specified value as an unsigned char.

Parameters:

value - The value.

Returns:

The value as an unsigned char.

maskAsShort

public static java.math.BigInteger maskAsShort(java.math.BigInteger value)

Mask the specified value as a signed short.

Parameters:

value - The value.

Returns:

The value as a signed short.

maskAsUnsignedShort

public static java.math.BigInteger maskAsUnsignedShort(java.math.BigInteger value)

Mask the specified value as an unsigned short.

Parameters:

value - The value.

Returns:

The value as an unsigned short.

maskAsInt

public static java.math.BigInteger maskAsInt(java.math.BigInteger value)

Mask the specified value as a signed int.

Parameters:

value - The value.

Returns:

The value as a signed int.

maskAsUnsignedInt

public static java.math.BigInteger maskAsUnsignedInt(java.math.BigInteger value)

Mask the specified value as an unsigned int.

Parameters:

value - The value.

Returns:

The value as an unsigned int.

maskAsLong

public static java.math.BigInteger maskAsLong(java.math.BigInteger value)

Mask the specified value as a signed long.

Parameters:

value - The value.

Returns:

The value as a signed long.

maskAsUnsignedLong

public static java.math.BigInteger maskAsUnsignedLong(java.math.BigInteger value)

Mask the specified value as an unsigned long.

Parameters:

value - The value.

Returns:

The value as an unsigned long.

maskAsLongLong

public static java.math.BigInteger maskAsLongLong(java.math.BigInteger value)

Mask the specified value as a signed long long.

Parameters:

value - The value.

Returns:

The value as a signed long long.

maskAsUnsignedLongLong

public static java.math.BigInteger maskAsUnsignedLongLong(java.math.BigInteger value)

Mask the specified value as an unsigned long long.

Parameters:

value - The value.

Returns:

The value as an unsigned long long.