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Are there any downsides to passing structs by value in C, rather than passing a pointer?
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For small structs (eg point, rect) passing by value is perfectly acceptable. But, apart from speed, there is one other reason why you should be careful passing/returning large structs by value: Stack space.
A lot of C programming ...
How to index characters in a Golang string?
...)) and may reconvert the string on each iteration for, O(n²). Just do for _, r := range word { fmt.Printf("%c", r) }. If you really wanted to loop with an index for x := 0; x < limit; x++. Please learn the basics of a language before answering questions.
– Dave C
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how to check and set max_allowed_packet mysql variable [duplicate]
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max_allowed_packet
is set in mysql config, not on php side
[mysqld]
max_allowed_packet=16M
You can see it's curent value in mysql like this:
SHOW VARIABLES LIKE 'max_allowed_packet';
You can try to change it like this, bu...
Is it possible to register a http+domain-based URL Scheme for iPhone apps, like YouTube and Maps?
...y domain (e.g. http://martijnthe.nl ) with my app whenever the app is installed on the phone, and with Mobile Safari in case it is not.
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How to express a One-To-Many relationship in Django
... sure there's a way to do this, so I'm not sure what I'm missing. I essentially have something like this:
8 Answers
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A variable modified inside a while loop is not remembered
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@AvinashYadav The problem isn't really related to while loop or for loop; rather the use of subshell i.e., in cmd1 | cmd2, cmd2 is in a subshell. So if a for loop is executed in a subshell, the unexpected/problematic behaviour will be exhibited.
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overlay opaque div over youtube iframe
...text/html" width="520" height="330" src="http://www.youtube.com/embed/NWHfY_lvKIQ?wmode=opaque" frameborder="0"></iframe>
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When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?
...etween types (such as int to float, or pointer to void*), and it can also call explicit conversion functions (or implicit ones). In many cases, explicitly stating static_cast isn't necessary, but it's important to note that the T(something) syntax is equivalent to (T)something and should be avoided ...
Do HTML WebSockets maintain an open connection for each client? Does this scale?
.../HTML requests. However, that doesn't mean WebSockets is a replacement for all uses of AJAX/HTML.
Each TCP connection in itself consumes very little in terms server resources. Often setting up the connection can be expensive but maintaining an idle connection it is almost free. The first limitation...
Has Facebook sharer.php changed to no longer accept detailed parameters?
...pers are encouraged to use the more modern Share Dialog, which can perform all of the same functions as these older dialogs, but can additionally publish custom Open Graph stories without requiring Facebook Login. developers.facebook.com/docs/sharing/reference/share-dialog
– R...