Package it.unich.jgmp
Class GMP
java.lang.Object
it.unich.jgmp.GMP
Collects global variables and static methods which do no fit in more specific
classes.
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Field Summary
FieldsModifier and TypeFieldDescription(package private) static final Cleaner
Cleaner used by the JGMP library.(package private) static final String
Exception message for division by zero.(package private) static final String
Error message for even modulus in @code{powmSec} functions.(package private) static final String
Exception message for even root of negative number.(package private) static final String
Exception message for a non-finite double.(package private) static final String
Error messages for invalid base.(package private) static final String
Error messages for invalid conversion from strings.(package private) static final String
Exception message for a NaN double.(package private) static final String
Error message for negative exponent in @code{powmSec} functions.(package private) static final String
Error message when arguments this and r cannot be the same object.(package private) static final String
Error message for parameter size too big.private static final Properties
Java Properties used by JGMP. -
Constructor Summary
ConstructorsModifierConstructorDescriptionprivate
GMP()
A private constructor since this class should never be instantiated. -
Method Summary
Modifier and TypeMethodDescriptionstatic int
Return the number of bits per limb.static String
Return the system decimal separator, as used by thesscanf(String, String, Object...)
andsprintf(String, Object...)
methods.static String
Return the JGMP library version.static int
Return the major version of the native GMP library.static int
Return the minor version of the native GMP library.static int
Return the patch level of the native GMP library.static String
Return the version of the native GMP library.static int
Print to the standard output according to the format specification infmt
and the additional arguments inargs
.static int
Parse the standard input according to the format specification infmt
, filling the variables inargs
.static String
Return a string according to the format specification infmt
and the additional arguments inargs
.static int
Parse the strings
according to the format specification infmt
, filling the variables inargs
.
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Field Details
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properties
Java Properties used by JGMP. -
MSG_DIVIDE_BY_ZERO
Exception message for division by zero.- See Also:
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MSG_EVEN_ROOT_OF_NEGATIVE
Exception message for even root of negative number.- See Also:
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MSG_FINITE_DOUBLE_REQUIRED
Exception message for a non-finite double.- See Also:
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MSG_NAN_NOT_ALLOWED
Exception message for a NaN double.- See Also:
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MSG_SAME_OBJECT
Error message when arguments this and r cannot be the same object.- See Also:
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MSG_INVALID_BASE
Error messages for invalid base.- See Also:
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MSG_INVALID_STRING_CONVERSION
Error messages for invalid conversion from strings.- See Also:
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MSG_SIZE_TOO_BIG
Error message for parameter size too big.- See Also:
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MSG_EVEN_MODULUS
Error message for even modulus in @code{powmSec} functions.- See Also:
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MSG_NEGATIVE_EXPONENT
Error message for negative exponent in @code{powmSec} functions.- See Also:
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cleaner
Cleaner used by the JGMP library.
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Constructor Details
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GMP
private GMP()A private constructor since this class should never be instantiated.
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Method Details
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getVersion
Return the version of the native GMP library. -
getJGmpVersion
Return the JGMP library version. -
getMajorVersion
public static int getMajorVersion()Return the major version of the native GMP library. -
getMinorVersion
public static int getMinorVersion()Return the minor version of the native GMP library. -
getPatchLevel
public static int getPatchLevel()Return the patch level of the native GMP library. -
getBitsPerLimb
public static int getBitsPerLimb()Return the number of bits per limb. A limb means the part of a multi-precision number that fits in a single machine word. -
getDecimalSeparator
Return the system decimal separator, as used by thesscanf(String, String, Object...)
andsprintf(String, Object...)
methods. This might not correspond to the decimal separator of the current Java locale, since native locales are more fine-grained then Java ones. -
printf
Print to the standard output according to the format specification infmt
and the additional arguments inargs
. This is similar to the Cprintf
function and the JavaPrintStream.printf(String, Object...)
method. If the format string is invalid, or the arguments don't match what the format specifies, then the behaviour of this function will be unpredictable. It will return -1 to indicate a write error. Output is not "atomic", so partial output may be produced if a write error occurs.This method bypasses the standard I/O procedures of the JVM. It is generally better to use the
sprintf(String, Object...)
method.See also the page Formatted Output Strings from the GMP manual.
- Returns:
- the number of characters written, -1 if an error occured.
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sprintf
Return a string according to the format specification infmt
and the additional arguments inargs
. This is similar to the Casprintf
function and the JavaString.format(String, Object...)
method. If the format string is invalid, or the arguments don't match what the format specifies, then the behaviour of this function will be unpredictable.See also the page Formatted Output Strings from the GMP manual..org/manual/Formatted-Output-Strings
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scanf
Parse the standard input according to the format specification infmt
, filling the variables inargs
. This is similar to the Cscanf
function. If the format string is invalid, or the arguments don't match what the format specifies, then the behaviour of this function will be unpredictable.This method bypasses the standard I/O procedures of the JVM. It is generally better to use the
sscanf(String, String, Object...)
method.See also the pages Formatted Input Strings and Formatted Input Functions from the GMP manual.
- Returns:
- the number of fields successfully parsed and stored.
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sscanf
Parse the strings
according to the format specification infmt
, filling the variables inargs
. This is similar to the Csscanf
function. If the format string is invalid, or the arguments don't match what the format specifies, then the behaviour of this function will be unpredictable.See also the pages Formatted Input Strings and Formatted Input Functions from the GMP manual.
- Returns:
- the number of fields successfully parsed and stored.
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