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What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
...ion: int __builtin_clz (unsigned int x)
Returns the number of leading 0-bits in X, starting at the most
significant bit position. If X is 0, the result is undefined.
-- Built-in Function: int __builtin_clzl (unsigned long)
Similar to `__builtin_clz', except the argument type is `un...
Using Position Relative/Absolute within a TD?
...
190
This is because according to CSS 2.1, the effect of position: relative on table elements is unde...
Why is TypedReference behind the scenes? It's so fast and safe… almost magical!
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Jan 23 '11 at 13:07
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Convert a series of parent-child relationships into a hierarchical tree?
...ion printTree($tree) {
if(!is_null($tree) && count($tree) > 0) {
echo '<ul>';
foreach($tree as $node) {
echo '<li>'.$node['name'];
printTree($node['children']);
echo '</li>';
}
echo '</ul>';
...
Get and set position with jQuery .offset()
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edited Apr 7 '17 at 6:04
pstanton
27.9k2323 gold badges104104 silver badges160160 bronze badges
answ...
iPhone - Get Position of UIView within entire UIWindow
...ke this:
[aView.superview convertPoint:aView.frame.origin toView:nil];
2014 Edit: Looking at the popularity of Matt__C's comment it seems reasonable to point out that the coordinates...
don't change when rotating the device.
always have their origin in the top left corner of the unrotated scree...
Difference between fmt.Println() and println() in Go
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103
println is an built-in function (into the runtime) which may eventually be removed, while the f...
How to tell bash that the line continues on the next line
In a bash script I got from another programmer, some lines exceeded 80 columns in length. What is the character or thing to be added to the line in order to indicate that the line continues on the next line?
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How to merge a list of lists with same type of items to a single list of items?
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answered Jul 27 '09 at 22:42
JaredParJaredPar
648k133133 gold badges11601160 silver badges13951395 bronze badges
...
Programmatically get the cache line size?
...el), you can get this information out of /sys:
/sys/devices/system/cpu/cpu0/cache/
This directory has a subdirectory for each level of cache. Each of those directories contains the following files:
coherency_line_size
level
number_of_sets
physical_line_partition
shared_cpu_list
shared_cpu_map
s...