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Most efficient way to reverse a numpy array
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stevehasteveha
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Using async-await on .net 4
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Omer MorOmer Mor
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How to make a flat list out of list of lists?
...e in the standard library:
$ python -mtimeit -s'l=[[1,2,3],[4,5,6], [7], [8,9]]*99' '[item for sublist in l for item in sublist]'
10000 loops, best of 3: 143 usec per loop
$ python -mtimeit -s'l=[[1,2,3],[4,5,6], [7], [8,9]]*99' 'sum(l, [])'
1000 loops, best of 3: 969 usec per loop
$ python -mtimei...
How to do math in a Django template?
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answered Jun 8 '11 at 21:19
Daniel RosemanDaniel Roseman
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How to install Java SDK on CentOS?
...this, the lastest available version may be different.
java-1.7.0-openjdk.x86_64
The above package alone will only install JRE. To also install javac and JDK, the following command will do the trick:
$ yum install java-1.7.0-openjdk*
These packages will be installing (as well as their dependenc...
How to kill a child process after a given timeout in Bash?
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8 Answers
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Is an array an object in java
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edited May 11 '16 at 1:08
Pang
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answered Ja...
Bitwise operation and usage
...ur in Python, you can follow a left shift with a bitwise and such as in an 8-bit value shifting left four bits:
bits8 = (bits8 << 4) & 255
With that in mind, another example of bitwise operators is if you have two 4-bit values that you want to pack into an 8-bit one, you can use all thr...
How to modify memory contents using GDB?
...gram variable (see GDB: assignment):
(gdb) l
6 {
7 int i;
8 struct file *f, *ftmp;
9
(gdb) set variable i = 10
(gdb) p i
$1 = 10
Or you can just update arbitrary (writable) location by address:
(gdb) set {int}0x83040 = 4
There's more. Read the manual.
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How do I clone a GitHub wiki?
...hey can edit?
– krlmlr
Nov 7 '13 at 8:38
1
Yes. You can set them to have read access based on whe...