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What are the effects of exceptions on performance in Java?
... this already happens in the try statement. The throw statement needs to unwind the stack and restore the values of all registers (and possible other values in the VM). So try and throw are equally slow, and that is pretty slow, however if no exception is thrown, exiting the try block takes no time ...
How do Trigonometric functions work?
... with Chebyshev, which means faster performance)
Range reduction is a huge win. This is because the contribution of higher order polynomials shrinks down when the interval of the approximation is smaller.
If you can't get away with range reduction, your coefficients need to be stored with more preci...
Input widths on Bootstrap 3
...
This wins by far on the answers. It's clean, reusable, and just works. In fact, it should be put in bootstrap by default as this is a very common annoyance. Very rarely do you want pure block forms.
– baweave...
How would Git handle a SHA-1 collision on a blob?
...ally just reduced the hash size from 160-bit to 4-bit by applying the following diff and rebuilding git:
--- git-2.7.0~rc0+next.20151210.orig/block-sha1/sha1.c
+++ git-2.7.0~rc0+next.20151210/block-sha1/sha1.c
@@ -246,6 +246,8 @@ void blk_SHA1_Final(unsigned char hashou
blk_SHA1_Update(ctx, pad...
ExecJS::RuntimeError on Windows trying to follow rubytutorial
...
My friend was attempting a Rails tutorial on Win 8 RTM a few months ago and ran into this error. Not sure if this issue exists in Windows 7 as well, but this may help.
Options:
1) Removing //= require_tree . / Ignoring the issue - As ColinR stated above, this line sho...
Convert two lists into a dictionary
...= ('Monty', 42, 'spam')
What is the simplest way to produce the following dictionary ?
dict = {'name' : 'Monty', 'age' : 42, 'food' : 'spam'}
Most performant, dict constructor with zip
new_dict = dict(zip(keys, values))
In Python 3, zip now returns a lazy iterator, and this is now the m...
Type definition in object literal in TypeScript
....7
state.instance && state.instance.fun();
// Or the long winded way because the above just feels weird
if (state.instance) { state.instance.fun(); }
// Or the I came from C and can't check for nulls like they are booleans way
if (state.instance != null) { state.instanc...
How to add custom validation to an AngularJS form?
...rder to check them in. The first one it finds in the list that is "truthy" wins, and it will show that message and none of the others.
And a plunker for the ngMessages example
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Linux反编译全攻略 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...0000 Base _init
080487a0 DF *UND* 000000d1 gtk_window_set_default_size
080487b0 DF *UND* 00000056 gtk_label_new
080487c0 DF *UND* 00000085 gtk_window_new
080487d0 DF *UND* 00000213 gtk_widget_set_uposition
08048...
How to convert URL parameters to a JavaScript object?
... requires you to actually convert it to object, you can implement the following function:
function paramsToObject(entries) {
let result = {}
for(let entry of entries) { // each 'entry' is a [key, value] tupple
const [key, value] = entry;
result[key] = value;
}
return result;
}
Bas...