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How does a language expand itself? [closed]
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@ChristopherPfohl Yeah, had to use it since I couldn't figure out how a computer would be like a box of chocolates. :)
– Some programmer dude
Jul 30 '14 at 7:56
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Waiting until two async blocks are executed before starting another block
...UEUE_PRIORITY_HIGH, 0), ^ {
// block1
NSLog(@"Block1");
[NSThread sleepForTimeInterval:5.0];
NSLog(@"Block1 End");
});
dispatch_group_async(group,dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), ^ {
// block2
NSLog(@"Block2");
[NSThread sleepForTimeInterval:8...
How do I include a JavaScript file in another JavaScript file?
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The old versions of JavaScript had no import, include, or require, so many different approaches to this problem have been developed.
But since 2015 (ES6), JavaScript has had the ES6 modules standard to import modules in Node.js, which is also supported by ...
C state-machine design [closed]
... building one small-ish state-machine at the heart of one of my worker thread.
27 Answers
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Why not abstract fields?
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folibis
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answered Feb 5 '10 at 22:59
rsprsp
2...
What REALLY happens when you don't free after malloc?
...t keep track, you might have memory leaks.
On the other hand, the similar admonition to close your files on exit has a much more concrete result - if you don't, the data you wrote to them might not get flushed, or if they're a temp file, they might not get deleted when you're done. Also, database ...
When is it appropriate to use UDP instead of TCP? [closed]
... UDP doesn't guarantee anything and packets can be lost. What would be the advantage of transmitting data using UDP in an application rather than over a TCP stream? In what kind of situations would UDP be the better choice, and why?
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Is it possible to get CMake to build both a static and shared version of the same library?
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Yes, it's moderately easy. Just use two "add_library" commands:
add_library(MyLib SHARED source1.c source2.c)
add_library(MyLibStatic STATIC source1.c source2.c)
Even if you have many source files, you would place the list of sources in a cmake variable, so it's ...
How to search a specific value in all tables (PostgreSQL)?
... But if I were looking for column names, I'd probably dump the schema instead of the data.
$ pg_dump --data-only --column-inserts -U postgres your-db-name > a.tmp
$ grep country_code a.tmp
INSERT INTO countries (iso_country_code, iso_country_name) VALUES ('US', 'United States');
INSERT INTO cou...
Hg: How to do a rebase like git's rebase
...eliever that it's the job of source control to show us not what we wished had happened, but what actually happened -- every deadend and every refactor should leave an indelible trace, and rebasing and other history editing techniques hide that.
Now go pick VonC's answer while I put my soapbox away....