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import org.checkerframework.checker.signedness.qual.*;
public class CastedShifts {
public void CastedIntShifts(@Unsigned int unsigned, @Signed int signed) {
// Cast to byte.
@UnknownSignedness byte byteRes;
// Shifting right by 23, the introduced bits are cast away
byteRes = (@Unsigned byte) (unsigned >>> 23);
byteRes = (@Unsigned byte) (unsigned >> 23);
byteRes = (@Signed byte) (signed >>> 23);
byteRes = (@Signed byte) (signed >> 23);
byteRes = (byte) (signed >> 23);
// Shifting right by 24, the introduced bits are still cast away.
byteRes = (@Unsigned byte) (unsigned >>> 24);
byteRes = (@Unsigned byte) (unsigned >> 24);
byteRes = (@Signed byte) (signed >>> 24);
byteRes = (@Signed byte) (signed >> 24);
// Shifting right by 25, now the MSB matters.
byteRes = (@Unsigned byte) (unsigned >>> 25);
// :: error: (shift.signed)
byteRes = (@Unsigned byte) (unsigned >> 25);
// :: error: (shift.unsigned)
byteRes = (@Signed byte) (signed >>> 25);
byteRes = (@Signed byte) (signed >> 25);
// Shifting right by zero should behave as assignment
byteRes = (@Unsigned byte) (unsigned >>> 0);
byteRes = (@Unsigned byte) (unsigned >> 0);
byteRes = (@Signed byte) (signed >>> 0);
byteRes = (@Signed byte) (signed >> 0);
// Cast to char.
@UnknownSignedness char charRes;
// Shifting right by 23, the introduced bits are cast away
charRes = (@Unsigned char) (unsigned >>> 23);
charRes = (@Unsigned char) (unsigned >> 23);
charRes = (@Signed char) (signed >>> 23);
charRes = (@Signed char) (signed >> 23);
// Shifting right by 24, the introduced bits are still cast away.
charRes = (@Unsigned char) (unsigned >>> 24);
charRes = (@Unsigned char) (unsigned >> 24);
charRes = (@Signed char) (signed >>> 24);
charRes = (@Signed char) (signed >> 24);
// Shifting right by 25, now the MSB matters.
charRes = (@Unsigned char) (unsigned >>> 25);
// :: error: (shift.signed)
charRes = (@Unsigned char) (unsigned >> 25);
// :: error: (shift.unsigned)
charRes = (@Signed char) (signed >>> 25);
charRes = (@Signed char) (signed >> 25);
// Shifting right by zero should behave as assignment
charRes = (@Unsigned char) (unsigned >>> 0);
charRes = (@Unsigned char) (unsigned >> 0);
charRes = (@Signed char) (signed >>> 0);
charRes = (@Signed char) (signed >> 0);
// Cast to short.
@UnknownSignedness short shortRes;
// Shifting right by 15, the introduced bits are cast away
shortRes = (@Unsigned short) (unsigned >>> 15);
shortRes = (@Unsigned short) (unsigned >> 15);
shortRes = (@Signed short) (signed >>> 15);
shortRes = (@Signed short) (signed >> 15);
// Shifting right by 16, the introduced bits are still cast away.
shortRes = (@Unsigned short) (unsigned >>> 16);
shortRes = (@Unsigned short) (unsigned >> 16);
shortRes = (@Signed short) (signed >>> 16);
shortRes = (@Signed short) (signed >> 16);
// Shifting right by 17, now the MSB matters.
shortRes = (@Unsigned short) (unsigned >>> 17);
// :: error: (shift.signed)
shortRes = (@Unsigned short) (unsigned >> 17);
// :: error: (shift.unsigned)
shortRes = (@Signed short) (signed >>> 17);
shortRes = (@Signed short) (signed >> 17);
// Shifting right by zero should behave as assignment
shortRes = (@Unsigned short) (unsigned >>> 0);
shortRes = (@Unsigned short) (unsigned >> 0);
shortRes = (@Signed short) (signed >>> 0);
shortRes = (@Signed short) (signed >> 0);
// Cast to int.
@UnknownSignedness int intRes;
// Now shift signedness matters again
intRes = (@Unsigned int) (unsigned >>> 1);
// :: error: (shift.signed)
intRes = (@Unsigned int) (unsigned >> 1);
// :: error: (shift.unsigned)
intRes = (@Signed int) (signed >>> 1);
intRes = (@Signed int) (signed >> 1);
// Shifting right by zero should behave as assignment
intRes = (@Unsigned int) (unsigned >>> 0);
intRes = (@Unsigned int) (unsigned >> 0);
intRes = (@Signed int) (signed >>> 0);
intRes = (@Signed int) (signed >> 0);
// Cast to long.
@UnknownSignedness long longRes;
// Now shift signedness matters again
longRes = (@Unsigned long) (unsigned >>> 1);
// :: error: (shift.signed)
longRes = (@Unsigned long) (unsigned >> 1);
// :: error: (shift.unsigned)
longRes = (@Signed long) (signed >>> 1);
longRes = (@Signed long) (signed >> 1);
// Shifting right by zero should behave as assignment
longRes = (@Unsigned long) (unsigned >>> 0);
longRes = (@Unsigned long) (unsigned >> 0);
longRes = (@Signed long) (signed >>> 0);
longRes = (@Signed long) (signed >> 0);
// Tests with double parenthesis (only byte and int)
// Cast to byte.
// Shifting right by 23, the introduced bits are cast away
byteRes = (@Unsigned byte) ((unsigned >>> 23));
byteRes = (@Unsigned byte) ((unsigned >> 23));
byteRes = (@Signed byte) ((signed >>> 23));
byteRes = (@Signed byte) ((signed >> 23));
// Shifting right by 24, the introduced bits are still cast away.
byteRes = (@Unsigned byte) ((unsigned >>> 24));
byteRes = (@Unsigned byte) ((unsigned >> 24));
byteRes = (@Signed byte) ((signed >>> 24));
byteRes = (@Signed byte) ((signed >> 24));
// Shifting right by 25, now the MSB matters.
byteRes = (@Unsigned byte) ((unsigned >>> 25));
// :: error: (shift.signed)
byteRes = (@Unsigned byte) ((unsigned >> 25));
// :: error: (shift.unsigned)
byteRes = (@Signed byte) ((signed >>> 25));
byteRes = (@Signed byte) ((signed >> 25));
// Shifting right by zero should behave as assignment
byteRes = (@Unsigned byte) ((unsigned >>> 0));
byteRes = (@Unsigned byte) ((unsigned >> 0));
byteRes = (@Signed byte) ((signed >>> 0));
byteRes = (@Signed byte) ((signed >> 0));
// Cast to int.
// Now shift signedness matters again
intRes = (@Unsigned int) ((unsigned >>> 1));
// :: error: (shift.signed)
intRes = (@Unsigned int) ((unsigned >> 1));
// :: error: (shift.unsigned)
intRes = (@Signed int) ((signed >>> 1));
intRes = (@Signed int) ((signed >> 1));
// Shifting right by zero should behave as assignment
intRes = (@Unsigned int) ((unsigned >>> 0));
intRes = (@Unsigned int) ((unsigned >> 0));
intRes = (@Signed int) ((signed >>> 0));
intRes = (@Signed int) ((signed >> 0));
// Test outside Java Specification shift ranges
// Cast to int.
// Now shift signedness matters again
intRes = (@Unsigned int) ((unsigned >>> 33));
// :: error: (shift.signed)
intRes = (@Unsigned int) ((unsigned >> 33));
// :: error: (shift.unsigned)
intRes = (@Signed int) ((signed >>> 33));
intRes = (@Signed int) ((signed >> 33));
// Shifting right by zero should behave as assignment
intRes = (@Unsigned int) ((unsigned >>> 32));
intRes = (@Unsigned int) ((unsigned >> 32));
intRes = (@Signed int) ((signed >>> 32));
intRes = (@Signed int) ((signed >> 32));
}
public void CastedLongShifts(@Unsigned long unsigned, @Signed long signed) {
// Cast to byte.
@UnknownSignedness byte byteRes;
// Shifting right by 55, the introduced bits are cast away
byteRes = (@Unsigned byte) (unsigned >>> 55);
byteRes = (@Unsigned byte) (unsigned >> 55);
byteRes = (@Signed byte) (signed >>> 55);
byteRes = (@Signed byte) (signed >> 55);
// Shifting right by 56, the introduced bits are still cast away.
byteRes = (@Unsigned byte) (unsigned >>> 56);
byteRes = (@Unsigned byte) (unsigned >> 56);
byteRes = (@Signed byte) (signed >>> 56);
byteRes = (@Signed byte) (signed >> 56);
// Shifting right by 57, now the MSB matters.
byteRes = (@Unsigned byte) (unsigned >>> 57);
// :: error: (shift.signed)
byteRes = (@Unsigned byte) (unsigned >> 57);
// :: error: (shift.unsigned)
byteRes = (@Signed byte) (signed >>> 57);
byteRes = (@Signed byte) (signed >> 57);
// Shifting right by zero should behave as assignment
byteRes = (@Unsigned byte) (unsigned >>> 0);
byteRes = (@Unsigned byte) (unsigned >> 0);
byteRes = (@Signed byte) (signed >>> 0);
byteRes = (@Signed byte) (signed >> 0);
// Cast to char.
@UnknownSignedness char charRes;
// Shifting right by 55, the introduced bits are cast away
charRes = (@Unsigned char) (unsigned >>> 55);
charRes = (@Unsigned char) (unsigned >> 55);
charRes = (@Signed char) (signed >>> 55);
charRes = (@Signed char) (signed >> 55);
// Shifting right by 56, the introduced bits are still cast away.
charRes = (@Unsigned char) (unsigned >>> 56);
charRes = (@Unsigned char) (unsigned >> 56);
charRes = (@Signed char) (signed >>> 56);
charRes = (@Signed char) (signed >> 56);
// Shifting right by 57, now the MSB matters.
charRes = (@Unsigned char) (unsigned >>> 57);
// :: error: (shift.signed)
charRes = (@Unsigned char) (unsigned >> 57);
// :: error: (shift.unsigned)
charRes = (@Signed char) (signed >>> 57);
charRes = (@Signed char) (signed >> 57);
// Shifting right by zero should behave as assignment
charRes = (@Unsigned char) (unsigned >>> 0);
charRes = (@Unsigned char) (unsigned >> 0);
charRes = (@Signed char) (signed >>> 0);
charRes = (@Signed char) (signed >> 0);
// Cast to short.
@UnknownSignedness short shortRes;
// Shifting right by 47, the introduced bits are cast away
shortRes = (@Unsigned short) (unsigned >>> 47);
shortRes = (@Unsigned short) (unsigned >> 47);
shortRes = (@Signed short) (signed >>> 47);
shortRes = (@Signed short) (signed >> 47);
// Shifting right by 48, the introduced bits are still cast away.
shortRes = (@Unsigned short) (unsigned >>> 48);
shortRes = (@Unsigned short) (unsigned >> 48);
shortRes = (@Signed short) (signed >>> 48);
shortRes = (@Signed short) (signed >> 48);
// Shifting right by 49, now the MSB matters.
shortRes = (@Unsigned short) (unsigned >>> 49);
// :: error: (shift.signed)
shortRes = (@Unsigned short) (unsigned >> 49);
// :: error: (shift.unsigned)
shortRes = (@Signed short) (signed >>> 49);
shortRes = (@Signed short) (signed >> 49);
// Shifting right by zero should behave as assignment
shortRes = (@Unsigned short) (unsigned >>> 0);
shortRes = (@Unsigned short) (unsigned >> 0);
shortRes = (@Signed short) (signed >>> 0);
shortRes = (@Signed short) (signed >> 0);
// Cast to int.
@UnknownSignedness int intRes;
// Shifting right by 31, the introduced bits are cast away
intRes = (@Unsigned int) (unsigned >>> 31);
intRes = (@Unsigned int) (unsigned >> 31);
intRes = (@Signed int) (signed >>> 31);
intRes = (@Signed int) (signed >> 31);
// Shifting right by 32, the introduced bits are still cast away.
intRes = (@Unsigned int) (unsigned >>> 32);
intRes = (@Unsigned int) (unsigned >> 32);
intRes = (@Signed int) (signed >>> 32);
intRes = (@Signed int) (signed >> 32);
// Shifting right by 33, now the MSB matters.
intRes = (@Unsigned int) (unsigned >>> 33);
// :: error: (shift.signed)
intRes = (@Unsigned int) (unsigned >> 33);
// :: error: (shift.unsigned)
intRes = (@Signed int) (signed >>> 33);
intRes = (@Signed int) (signed >> 33);
// Shifting right by zero should behave as assignment
intRes = (@Unsigned int) (unsigned >>> 0);
intRes = (@Unsigned int) (unsigned >> 0);
intRes = (@Signed int) (signed >>> 0);
intRes = (@Signed int) (signed >> 0);
// Cast to long.
@UnknownSignedness long longRes;
// Now shift signedness matters again
longRes = (@Unsigned long) (unsigned >>> 1);
// :: error: (shift.signed)
longRes = (@Unsigned long) (unsigned >> 1);
// :: error: (shift.unsigned)
longRes = (@Signed long) (signed >>> 1);
longRes = (@Signed long) (signed >> 1);
// Shifting right by zero should behave as assignment
longRes = (@Unsigned long) (unsigned >>> 0);
longRes = (@Unsigned long) (unsigned >> 0);
longRes = (@Signed long) (signed >>> 0);
longRes = (@Signed long) (signed >> 0);
// Tests with double parenthesis (only byte and long)
// Cast to byte.
// Shifting right by 55, the introduced bits are cast away
byteRes = (@Unsigned byte) ((unsigned >>> 55));
byteRes = (@Unsigned byte) ((unsigned >> 55));
byteRes = (@Signed byte) ((signed >>> 55));
byteRes = (@Signed byte) ((signed >> 55));
// Shifting right by 56, the introduced bits are still cast away.
byteRes = (@Unsigned byte) ((unsigned >>> 56));
byteRes = (@Unsigned byte) ((unsigned >> 56));
byteRes = (@Signed byte) ((signed >>> 56));
byteRes = (@Signed byte) ((signed >> 56));
// Shifting right by 9, now the MSB matters.
byteRes = (@Unsigned byte) ((unsigned >>> 57));
// :: error: (shift.signed)
byteRes = (@Unsigned byte) ((unsigned >> 57));
// :: error: (shift.unsigned)
byteRes = (@Signed byte) ((signed >>> 57));
byteRes = (@Signed byte) ((signed >> 57));
// Shifting right by zero should behave as assignment
byteRes = (@Unsigned byte) ((unsigned >>> 0));
byteRes = (@Unsigned byte) ((unsigned >> 0));
byteRes = (@Signed byte) ((signed >>> 0));
byteRes = (@Signed byte) ((signed >> 0));
// Cast to long.
// Now shift signedness matters again
longRes = (@Unsigned long) ((unsigned >>> 1));
// :: error: (shift.signed)
longRes = (@Unsigned long) ((unsigned >> 1));
// :: error: (shift.unsigned)
longRes = (@Signed long) ((signed >>> 1));
longRes = (@Signed long) ((signed >> 1));
// Shifting right by zero should behave as assignment
longRes = (@Unsigned long) ((unsigned >>> 0));
longRes = (@Unsigned long) ((unsigned >> 0));
longRes = (@Signed long) ((signed >>> 0));
longRes = (@Signed long) ((signed >> 0));
// Test outside Java Specification shift ranges
// Cast to long.
// Now shift signedness matters again
longRes = (@Unsigned long) ((unsigned >>> 65));
// :: error: (shift.signed)
longRes = (@Unsigned long) ((unsigned >> 65));
// :: error: (shift.unsigned)
longRes = (@Signed long) ((signed >>> 65));
longRes = (@Signed long) ((signed >> 65));
// Shifting right by zero should behave as assignment
longRes = (@Unsigned long) ((unsigned >>> 64));
longRes = (@Unsigned long) ((unsigned >> 64));
longRes = (@Signed long) ((signed >>> 64));
longRes = (@Signed long) ((signed >> 64));
longRes = (long) ((signed >> 64));
}
}
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