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Convert integer into byte array (Java)
...
Have a look at the ByteBuffer class.
ByteBuffer b = ByteBuffer.allocate(4);
//b.order(ByteOrder.BIG_ENDIAN); // optional, the initial order of a byte buffer is always BIG_ENDIAN.
b.putInt(0xAABBCCDD);
byte[] result = b.array();
Setting the byte order ensures that result[0] == 0xAA, re...
How to find largest objects in a SQL Server database?
... i.object_id = p.object_id AND i.index_id = p.index_id
INNER JOIN
sys.allocation_units a ON p.partition_id = a.container_id
WHERE
t.name NOT LIKE 'dt%' AND
i.object_id > 255 AND
i.index_id <= 1
GROUP BY
t.name, i.object_id, i.index_id, i.name
ORDER BY
object_name...
strdup() - what does it do in C?
...e as the following code:
char *strdup(const char *src) {
char *dst = malloc(strlen (src) + 1); // Space for length plus nul
if (dst == NULL) return NULL; // No memory
strcpy(dst, src); // Copy the characters
return dst; // Re...
iOS 7 style Blur view
... [master repo]
I added it by using:
FXBlurView *blurView = [[FXBlurView alloc] initWithFrame:CGRectMake(50, 50, 150, 150)];
[self.blurView setDynamic:YES];
[self.view addSubview:self.blurView];
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Programmatically align a toolbar on top of the iPhone keyboard
...ther with a "done" button on the right:
UIToolbar *toolbar = [[[UIToolbar alloc] init] autorelease];
[toolbar setBarStyle:UIBarStyleBlackTranslucent];
[toolbar sizeToFit];
UIBarButtonItem *flexButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:s...
Why are preprocessor macros evil and what are the alternatives?
...to wrap a function with macros to pass on file/line information:
#define malloc(x) my_debug_malloc(x, __FILE__, __LINE__)
#define free(x) my_debug_free(x, __FILE__, __LINE__)
Now we can use my_debug_malloc as the regular malloc in the code, but it has extra arguments, so when it comes to the end...
Add UIPickerView & a Button in Action sheet - How?
...segmented control (eyecandy)
UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:nil
delegate:nil
cancelButtonTitle:nil
destruct...
Formatting NSDate into particular styles for both year, month, day, and hour, minute, seconds
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this is what i used:
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:@"yyyy-MM-dd"];
NSDateFormatter *timeFormat = [[NSDateFormatter alloc] init];
[timeFormat setDateFormat:@"HH:mm:ss"];
NSDate *now = [[NSDate alloc] init];
NSString *theDate = [dateFo...
Does delete on a pointer to a subclass call the base class destructor?
I have an class A which uses a heap memory allocation for one of its fields. Class A is instantiated and stored as a pointer field in another class ( class B .
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What is meant by Resource Acquisition is Initialization (RAII)?
...object.
** Update2: as @sbi pointed out, the resource - although often is allocated inside the constructor - may also be allocated outside and passed in as a parameter.
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