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How to find the 'sizeof' (a pointer pointing to an array)?
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No, you can't. The compiler doesn't know what the pointer is pointing to. There are tricks, like ending the array with a known out-of-band value and then counting the size up until that value, but that's not using sizeof().
Another trick is the one mentioned by Zan, which ...
Spring: @Component versus @Bean
I understand that @Component annotation was introduced in spring 2.5 in order to get rid of xml bean definition by using classpath scanning.
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Linux command to print directory structure in the form of a tree
Is there any linux command that I can call from a Bash script that will print the directory structure in the form of a tree, e.g.,
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Why does the C++ STL not provide any “tree” containers?
Why does the C++ STL not provide any "tree" containers, and what's the best thing to use instead?
14 Answers
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Use ASP.NET MVC validation with jquery ajax?
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Client Side
Using the jQuery.validate library should be pretty simple to set up.
Specify the following settings in your Web.config file:
<appSettings>
<add key="ClientValidationEnabled" value="true"/>
<add key="Un...
How to format a JavaScript date
In JavaScript, how can I format a date object to print as 10-Aug-2010 ?
57 Answers
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PHP: How to send HTTP response code?
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As of PHP 5.4 there are three methods to accomplish this:
Assembling the response code on your own (PHP >= 4.0)
The header() function has a special use-case that detects a HTTP response line and lets you replace that with a custom one
header("HTTP/1.1 200 OK");
However, this require...
Failed to allocate memory: 8
From today, when I tried to run an app in NetBeans on a 2.3.3 Android platform, it shows me that:
20 Answers
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Using two CSS classes on one element [duplicate]
What am I doing wrong here?
9 Answers
9
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How to retrieve all keys (or values) from a std::map and put them into a vector?
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While your solution should work, it can be difficult to read depending on the skill level of your fellow programmers. Additionally, it moves functionality away from the call site. Which can make maintenance a little more difficult.
I'm not sure if your goal is to get the keys into a vector...