problem about translating c++ to java

I have a problem about translate c++ code to java code.

someone says use the JNI,someone just trans it directly and someone use jobject or jint..etc...

I have no ideal about choicing which way.

and tihs code is what i want

#ifndef SC_BIT_H

#define SC_BIT_H

#include "systemc/datatypes/int/sc_nbdefs.h"

#include "systemc/utils/sc_iostream.h"

namespace sc_dt

{

// classes defined in this module

class sc_bit;

// forward class declarations

class sc_logic;

// -

// CLASS : sc_bit

//

// Bit class.

// Note: VSIA compatibility indicated.

// -

class sc_bit

{

// support methods

static void invalid_value( char );

static void invalid_value( int );

static bool to_value( char c )

{

if( c != '0' && c != '1' ) {

invalid_value( c );

}

return ( c == '0' ? false : true );

}

static bool to_value( int i )

{

if( i != 0 && i != 1 ) {

invalid_value( i );

}

return ( i == 0 ? false : true );

}

public:

// constructors

// MANDATORY

sc_bit()

: m_val( false )

{}

explicit sc_bit( uint64 a )

: m_val( a )

{}

explicit sc_bit( bool a )

: m_val( a )

{}

explicit sc_bit( int a )

: m_val( to_value( a ) )

{}

explicit sc_bit( char a )

: m_val( to_value( a ) )

{}

explicit sc_bit( const sc_logic& a ); // non-VSIA

// copy constructor

// MANDATORY

sc_bit( const sc_bit& a )

: m_val( a.m_val )

{}

// destructor

// MANDATORY

~sc_bit()

{}

// assignment operators

// MANDATORY

sc_bit& operator = ( const sc_bit& b )

{ m_val = b.m_val; return *this; }

sc_bit& operator = ( int64 b )

{ return ( *this = sc_bit( (int)b ) ); }

sc_bit& operator = ( uint64 b )

{ return ( *this = sc_bit( (int)b ) ); }

sc_bit& operator = ( long b )

{ return ( *this = sc_bit( (int)b ) ); }

sc_bit& operator = ( unsigned long b )

{ return ( *this = sc_bit( (int)b ) ); }

sc_bit& operator = ( int b )

{ return ( *this = sc_bit( b ) ); }

sc_bit& operator = ( bool b )

{ return ( *this = sc_bit( b ) ); }

sc_bit& operator = ( char b )

{ return ( *this = sc_bit( b ) ); }

sc_bit& operator = ( const sc_logic& b ); // non-VSIA

// bitwise assignment operators

sc_bit& operator &= ( const sc_bit& b )

{ m_val = ( m_val && b.m_val ); return *this; }

sc_bit& operator &= ( int b )

{ return ( *this &= sc_bit( b ) ); }

sc_bit& operator &= ( bool b )

{ return ( *this &= sc_bit( b ) ); }

sc_bit& operator &= ( char b )

{ return ( *this &= sc_bit( b ) ); }

sc_bit& operator |= ( const sc_bit& b )

{ m_val = ( m_val || b.m_val ); return *this; }

sc_bit& operator |= ( int b )

{ return ( *this |= sc_bit( b ) ); }

sc_bit& operator |= ( bool b )

{ return ( *this |= sc_bit( b ) ); }

sc_bit& operator |= ( char b )

{ return ( *this |= sc_bit( b ) ); }

sc_bit& operator ^= ( const sc_bit& b )

{ m_val = ( m_val != b.m_val ); return *this; }

sc_bit& operator ^= ( int b )

{ return ( *this ^= sc_bit( b ) ); }

sc_bit& operator ^= ( bool b )

{ return ( *this ^= sc_bit( b ) ); }

sc_bit& operator ^= ( char b )

{ return ( *this ^= sc_bit( b ) ); }

// conversions

// MANDATORY

// implicit conversion to bool

operator bool () const

{ return m_val; }

bool operator ! () const // non-VSIA

{ return ! m_val; }

// explicit conversions

bool to_bool() const // non-VSIA

{ return m_val; }

char to_char() const

{ return ( m_val ? '1' : '0' ); }

// relational operators and functions

// MANDATORY

friend bool operator == ( const sc_bit& a, const sc_bit& b )

{ return ( a.m_val == b.m_val ); }

friend bool operator == ( const sc_bit& a, int b )

{ return ( a == sc_bit( b ) ); }

friend bool operator == ( const sc_bit& a, bool b )

{ return ( a == sc_bit( b ) ); }

friend bool operator == ( const sc_bit& a, char b )

{ return ( a == sc_bit( b ) ); }

friend bool operator == ( int a, const sc_bit& b )

{ return ( sc_bit( a ) == b ); }

friend bool operator == ( bool a, const sc_bit& b )

{ return ( sc_bit( a ) == b ); }

friend bool operator == ( char a, const sc_bit& b )

{ return ( sc_bit( a ) == b ); }

// OPTIONAL

friend bool equal( const sc_bit& a, const sc_bit& b )

{ return ( a == b ); }

friend bool equal( const sc_bit& a, int b )

{ return ( a == b ); }

friend bool equal( const sc_bit& a, bool b )

{ return ( a == b ); }

friend bool equal( const sc_bit& a, char b )

{ return ( a == b ); }

friend bool equal( int a, const sc_bit& b )

{ return ( a == b ); }

friend bool equal( bool a, const sc_bit& b )

{ return ( a == b ); }

friend bool equal( char a, const sc_bit& b )

{ return ( a == b ); }

// MANDATORY

friend bool operator != ( const sc_bit& a, const sc_bit& b )

{ return ( a.m_val != b.m_val ); }

friend bool operator != ( const sc_bit& a, int b )

{ return ( a != sc_bit( b ) ); }

friend bool operator != ( const sc_bit& a, bool b )

{ return ( a != sc_bit( b ) ); }

friend bool operator != ( const sc_bit& a, char b )

{ return ( a != sc_bit( b ) ); }

friend bool operator != ( int a, const sc_bit& b )

{ return ( sc_bit( a ) != b ); }

friend bool operator != ( bool a, const sc_bit& b )

{ return ( sc_bit( a ) != b ); }

friend bool operator != ( char a, const sc_bit& b )

{ return ( sc_bit( a ) != b ); }

// OPTIONAL

friend bool not_equal( const sc_bit& a, const sc_bit& b )

{ return ( a != b ); }

friend bool not_equal( const sc_bit& a, int b )

{ return ( a != b ); }

friend bool not_equal( const sc_bit& a, bool b )

{ return ( a != b ); }

friend bool not_equal( const sc_bit& a, char b )

{ return ( a != b ); }

friend bool not_equal( int a, const sc_bit& b )

{ return ( a != b ); }

friend bool not_equal( bool a, const sc_bit& b )

{ return ( a != b ); }

friend bool not_equal( char a, const sc_bit& b )

{ return ( a != b ); }

// bitwise operators and functions

// bitwise complement

// MANDATORY

friend const sc_bit operator ~ ( const sc_bit& a )

{ return sc_bit( ! a.m_val ); }

// RECOMMENDED

sc_bit& b_not()

{ m_val = ( ! m_val ); return *this; }

// OPTIONAL

friend const sc_bit b_not( const sc_bit& a )

{ return ( ~ a ); }

// RECOMMENDED

friend void b_not( sc_bit& r, const sc_bit& a )

{ r = ( ~ a ); }

// bitwise or

// MANDATORY

friend const sc_bit operator | ( const sc_bit& a, const sc_bit& b )

{ return sc_bit( a.m_val || b.m_val ); }

friend const sc_bit operator | ( const sc_bit& a, int b )

{ return ( a | sc_bit( b ) ); }

friend const sc_bit operator | ( const sc_bit& a, bool b )

{ return ( a | sc_bit( b ) ); }

friend const sc_bit operator | ( const sc_bit& a, char b )

{ return ( a | sc_bit( b ) ); }

friend const sc_bit operator | ( int a, const sc_bit& b )

{ return ( sc_bit( a ) | b ); }

friend const sc_bit operator | ( bool a, const sc_bit& b )

{ return ( sc_bit( a ) | b ); }

friend const sc_bit operator | ( char a, const sc_bit& b )

{ return ( sc_bit( a ) | b ); }

// OPTIONAL

friend const sc_bit b_or( const sc_bit& a, const sc_bit& b )

{ return ( a | b ); }

friend const sc_bit b_or( const sc_bit& a, int b )

{ return ( a | b ); }

friend const sc_bit b_or( const sc_bit& a, bool b )

{ return ( a | b ); }

friend const sc_bit b_or( const sc_bit& a, char b )

{ return ( a | b ); }

friend const sc_bit b_or( int a, const sc_bit& b )

{ return ( a | b ); }

friend const sc_bit b_or( bool a, const sc_bit& b )

{ return ( a | b ); }

friend const sc_bit b_or( char a, const sc_bit& b )

{ return ( a | b ); }

// RECOMMENDED

friend void b_or( sc_bit& r, const sc_bit& a, const sc_bit& b )

{ r = ( a | b ); }

friend void b_or( sc_bit& r, const sc_bit& a, int b )

{ r = ( a | b ); }

friend void b_or( sc_bit& r, const sc_bit& a, bool b )

{ r = ( a | b ); }

friend void b_or( sc_bit& r, const sc_bit& a, char b )

{ r = ( a | b ); }

friend void b_or( sc_bit& r, int a, const sc_bit& b )

{ r = ( a | b ); }

friend void b_or( sc_bit& r, bool a, const sc_bit& b )

{ r = ( a | b ); }

friend void b_or( sc_bit& r, char a, const sc_bit& b )

{ r = ( a | b ); }

// bitwise and

// MANDATORY

friend const sc_bit operator & ( const sc_bit& a, const sc_bit& b )

{ return sc_bit( a.m_val && b.m_val ); }

friend const sc_bit operator & ( const sc_bit& a, int b )

{ return ( a & sc_bit( b ) ); }

friend const sc_bit operator & ( const sc_bit& a, bool b )

{ return ( a & sc_bit( b ) ); }

friend const sc_bit operator & ( const sc_bit& a, char b )

{ return ( a & sc_bit( b ) ); }

friend const sc_bit operator & ( int a, const sc_bit& b )

{ return ( sc_bit( a ) & b ); }

friend const sc_bit operator & ( bool a, const sc_bit& b )

{ return ( sc_bit( a ) & b ); }

friend const sc_bit operator & ( char a, const sc_bit& b )

{ return ( sc_bit( a ) & b ); }

// OPTIONAL

friend const sc_bit b_and( const sc_bit& a, const sc_bit& b )

{ return ( a & b ); }

friend const sc_bit b_and( const sc_bit& a, int b )

{ return ( a & b ); }

friend const sc_bit b_and( const sc_bit& a, bool b )

{ return ( a & b ); }

friend const sc_bit b_and( const sc_bit& a, char b )

{ return ( a & b ); }

friend const sc_bit b_and( int a, const sc_bit& b )

{ return ( a & b ); }

friend const sc_bit b_and( bool a, const sc_bit& b )

{ return ( a & b ); }

friend const sc_bit b_and( char a, const sc_bit& b )

{ return ( a & b ); }

// RECOMMENDED

friend void b_and( sc_bit& r, const sc_bit& a, const sc_bit& b )

{ r = ( a & b ); }

friend void b_and( sc_bit& r, const sc_bit& a, int b )

{ r = ( a & b ); }

friend void b_and( sc_bit& r, const sc_bit& a, bool b )

{ r = ( a & b ); }

friend void b_and( sc_bit& r, const sc_bit& a, char b )

{ r = ( a & b ); }

friend void b_and( sc_bit& r, int a, const sc_bit& b )

{ r = ( a & b ); }

friend void b_and( sc_bit& r, bool a, const sc_bit& b )

{ r = ( a & b ); }

friend void b_and( sc_bit& r, char a, const sc_bit& b )

{ r = ( a & b ); }

// bitwise exor

// MANDATORY

friend const sc_bit operator ^ ( const sc_bit& a, const sc_bit& b )

{ return sc_bit( a.m_val != b.m_val ); }

friend const sc_bit operator ^ ( const sc_bit& a, int b )

{ return ( a ^ sc_bit( b ) ); }

friend const sc_bit operator ^ ( const sc_bit& a, bool b )

{ return ( a ^ sc_bit( b ) ); }

friend const sc_bit operator ^ ( const sc_bit& a, char b )

{ return ( a ^ sc_bit( b ) ); }

friend const sc_bit operator ^ ( int a, const sc_bit& b )

{ return ( sc_bit( a ) ^ b ); }

friend const sc_bit operator ^ ( bool a, const sc_bit& b )

{ return ( sc_bit( a ) ^ b ); }

friend const sc_bit operator ^ ( char a, const sc_bit& b )

{ return ( sc_bit( a ) ^ b ); }

// OPTIONAL

friend const sc_bit b_xor( const sc_bit& a, const sc_bit& b )

{ return ( a ^ b ); }

friend const sc_bit b_xor( const sc_bit& a, int b )

{ return ( a ^ b ); }

friend const sc_bit b_xor( const sc_bit& a, bool b )

{ return ( a ^ b ); }

friend const sc_bit b_xor( const sc_bit& a, char b )

{ return ( a ^ b ); }

friend const sc_bit b_xor( int a, const sc_bit& b )

{ return ( a ^ b ); }

friend const sc_bit b_xor( bool a, const sc_bit& b )

{ return ( a ^ b ); }

friend const sc_bit b_xor( char a, const sc_bit& b )

{ return ( a ^ b ); }

// RECOMMENDED

friend void b_xor( sc_bit& r, const sc_bit& a, const sc_bit& b )

{ r = ( a ^ b ); }

friend void b_xor( sc_bit& r, const sc_bit& a, int b )

{ r = ( a ^ b ); }

friend void b_xor( sc_bit& r, const sc_bit& a, bool b )

{ r = ( a ^ b ); }

friend void b_xor( sc_bit& r, const sc_bit& a, char b )

{ r = ( a ^ b ); }

friend void b_xor( sc_bit& r, int a, const sc_bit& b )

{ r = ( a ^ b ); }

friend void b_xor( sc_bit& r, bool a, const sc_bit& b )

{ r = ( a ^ b ); }

friend void b_xor( sc_bit& r, char a, const sc_bit& b )

{ r = ( a ^ b ); }

// other methods

void print( ostream& os = cout ) const

{ os << to_bool(); }

void scan( istream& = cin );

private:

bool m_val;

};

// -

inline

ostream&

operator << ( ostream& os, const sc_bit& a )

{

a.print( os );

return os;

}

inline

istream&

operator >> ( istream& is, sc_bit& a )

{

a.scan( is );

return is;

}

} // namespace sc_dt

#endif

// Taf!

[14501 byte] By [tailianga] at [2007-10-2 14:32:03]
# 1

That is a very verbose way of implementing a boolean value; btw, given

the user defined casts, most of the overloaded friend functions are not

needed (and should be removed IMHO). The only methods that are

not directly available in Java are the 'to_value' functions for a char or

an int. Here they are:boolean to_value(char c) {

if (c == '0') return false;

if (c == '1') return true;

throw IllegalArgumentException("invalid char val: "+c);

}

boolean to_value(int i) {

if (i == 0) return false;

if (i == 1) return true;

throw IllegalArgumentException("invalid int val: "+i);

}

... all the rest can be done using the built-in operators that handle

boolean operands: &&, ||, &, |, ^ etc. etc.

kind regards,

Jos

JosAHa at 2007-7-13 12:54:44 > top of Java-index,Other Topics,Patterns & OO Design...