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Structure padding and packing
...boundaries - say, int members would have offsets, which are mod(4) == 0 on 32-bit platform. Padding is on by default. It inserts the following "gaps" into your first structure:
struct mystruct_A {
char a;
char gap_0[3]; /* inserted by compiler: for alignment of b */
int b;
char c;
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How to load all modules in a folder?
...les = glob.glob(join(dirname(__file__), "*.py"))
__all__ = [ basename(f)[:-3] for f in modules if isfile(f) and not f.endswith('__init__.py')]
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What algorithm does Readability use for extracting text from URLs?
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edited Nov 3 '11 at 10:46
answered Nov 21 '10 at 20:03
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Copying files from Docker container to host
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3166
In order to copy a file from a container to the host, you can use the command
docker cp <...
How to print a percentage value in python?
...age floating point precision type:
>>> print "{0:.0%}".format(1./3)
33%
If you don't want integer division, you can import Python3's division from __future__:
>>> from __future__ import division
>>> 1 / 3
0.3333333333333333
# The above 33% example would could now be w...
“x not in y” or “not x in y”
...is(notin)
2 0 LOAD_CONST 1 ('ham')
3 LOAD_CONST 2 ('spam and eggs')
6 COMPARE_OP 7 (not in)
9 POP_TOP
10 LOAD_CONST 0 (None)
13 RETURN_VALUE
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Failed to execute 'btoa' on 'Window': The string to be encoded contains characters outside of the La
...perty
_keyStr: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="
// public method for encoding
, encode: function (input)
{
var output = "";
var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
var i = 0;
input = Base64._utf8_encode(input)...
Types in MySQL: BigInt(20) vs Int(20)
...values than can be stored in their respective number of bytes. That means 232 values in an INT and 264 values in a BIGINT.
The 20 in INT(20) and BIGINT(20) means almost nothing. It's a hint for display width. It has nothing to do with storage, nor the range of values that column will accept.
Pr...
What are the advantages of using a schema-free database like MongoDB compared to a relational databa
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edited Mar 25 '13 at 21:25
answered Jan 22 '10 at 15:27
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Programmatically get the cache line size?
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edited Aug 7 '18 at 15:03
Chai T. Rex
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