Carry flag is carry or borrow out of the Most Significant bit (MSb): CF (bit 0) Carry flag — Set if an arithmetic operation generates a carry or a borrow out of the mostsignificant bit of the result; cleared otherwise. This flag indicates an overflow condition for unsigned-integer arithmetic. It is also used in multiple-precision … Read more
Added the answer that antonyt provided: @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); if ((getIntent().getFlags() & Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT) != 0) { // Activity was brought to front and not created, // Thus finishing this will get us to the last viewed activity finish(); return; } // Regular activity creation code… }
-Dsun.io.serialization.extendedDebugInfo=true
WS_EX_TRANSPARENT makes your events (like mouse clicks) fall through your window, amongst other things. Opacity is a separate concept, it instructs window manager to apply alphablending when drawing your form. Those two things are not related, but when you combine them you get the effect you need in your case. So: Paint method of your … Read more
Storing the ordinal as a representation of the EnumSet is not a good idea. The ordinal numbers depend on the order of the definition in the Enum class (a related discussion is here). Your database may be easily broken by a refactoring that changes the order of Enum values or introduces new ones in the … Read more
You can use finish() method or you can use: android:noHistory=”true” And then there is no need to call finish() anymore. <activity android:name=”.ClassName” android:noHistory=”true” … />
If you use -march then GCC will be free to generate instructions that work on the specified CPU, but (typically) not on earlier CPUs in the architecture family. If you just use -mtune, then the compiler will generate code that works on any of them, but will favour instruction sequences that run fastest on the … Read more
Actually the right solution when using REORDER_TO_FRONT is to call overridePendingTransition in the method onNewIntent() of the activity you are going to open. @Override protected void onNewIntent(Intent intent) { super.onNewIntent(intent); overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out); } replace with your transitions. If you need to selectively replace the transition you can add an extra in your intent and check … Read more
Flags must be powers of 2 in order to bitwise-or together properly. define(“FLAG_A”, 0x1); define(“FLAG_B”, 0x2); define(“FLAG_C”, 0x4); function test_flags($flags) { if ($flags & FLAG_A) echo “A”; if ($flags & FLAG_B) echo “B”; if ($flags & FLAG_C) echo “C”; } test_flags(FLAG_B | FLAG_C); # Now the output will be BC Using hexadecimal notation for the … Read more
To check to see if a bit value is set: int value = VALUE_TO_CHECK | OTHER_VALUE_TO_CHECK; if ((value & VALUE_TO_CHECK) == VALUE_TO_CHECK) { // do something–it was set } if ((value & OTHER_VALUE_TO_CHECK) == OTHER_VALUE_TO_CHECK) { // also set (if it gets in here, then it was defined in // value, but it does not … Read more