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Is char signed or unsigned by default?

... is 100% equivalent to declaring it as signed int. This is always true for all compilers and architectures. share | improve this answer | follow | ...
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Error: free(): invalid next size (fast):

... you have a memory error. You may be trying to free a pointer that wasn't allocated by malloc (or delete an object that wasn't created by new) or you may be trying to free/delete such an object more than once. You may be overflowing a buffer or otherwise writing to memory to which you shouldn't be...
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Allowing Untrusted SSL Certificates with HttpClient

... Is there a way to do this without using all of your code? In other words, what is the gist of your solution? – wensveen Aug 21 '15 at 14:09 ...
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Argparse: Required argument 'y' if 'x' is present

... No, there isn't any option in argparse to make mutually inclusive sets of options. The simplest way to deal with this would be: if args.prox and (args.lport is None or args.rport is None): parser.error("--prox requires --lport and --rport.") ...
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Sending JWT token in the headers with Postman

...ator is giving me what looks like garbage characters. I assume this is actually information encrypted by the Token generator? – Diode Dan Jul 13 '14 at 17:55 5 ...
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Singleton pattern in nodejs - is it needed?

... This has basically to do with nodejs caching. Plain and simple. https://nodejs.org/api/modules.html#modules_caching (v 6.3.1) Caching Modules are cached after the first time they are loaded. This means (among other things) tha...
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How do you determine what technology a website is built on? [closed]

... There are all sorts of things you can look out for, but it doesn't really give you any certainty as to the technology behind a site. In general, information like that is something people will want to hide, as the more information that ...
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What scalability problems have you encountered using a NoSQL data store? [closed]

... I've switched a small subproject from MySQL to CouchDB, to be able to handle the load. The result was amazing. About 2 years ago, we've released a self written software on http://www.ubuntuusers.de/ (which is probably the biggest German Linux...
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Is String.Contains() faster than String.IndexOf()?

... Contains calls IndexOf: public bool Contains(string value) { return (this.IndexOf(value, StringComparison.Ordinal) >= 0); } Which calls CompareInfo.IndexOf, which ultimately uses a CLR implementation. If you want to see how ...
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How can I upload fresh code at github?

I have a directory with all my coding projects. 7 Answers 7 ...