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How are virtual functions and vtable implemented?
...t 1 virtual function. There is a space overhead associated with the vtable and a time overhead associated with calling a virtual function vs a non-virtual function.
Do abstract classes simply have a NULL for the function pointer of at least one entry?
The answer is it is unspecified by the languag...
How expensive is RTTI?
I understand that there is a resource hit from using RTTI, but how big is it? Everywhere I've looked just says that "RTTI is expensive," but none of them actually give any benchmarks or quantitative data reguarding memory, processor time, or speed.
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How to update maven repository in Eclipse?
...ou can right-click on your project then Maven > Update Project..., then select Force Update of Snapshots/Releases checkbox then click OK.
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ASP.NET Repeater bind List
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rptSample.DataSource = from c in lstSample select new { NAME = c };
in the repeater you put
<%# Eval("NAME") %>
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How can I turn a List of Lists into a List in Java 8?
... .collect(Collectors.toList())
This is would be similar in SQL to having SELECT statements within SELECT statements.
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What is private bytes, virtual bytes, working set?
...e a reliable indicator of how much memory an executable is actually using, and none of them are really appropriate for debugging a memory leak.
Private Bytes refer to the amount of memory that the process executable has asked for - not necessarily the amount it is actually using. They are "private...
Combining CSS Pseudo-elements, “:after” the “:last-child”
...this reason: the last-child is a modifier on the li, and then after you've selected all li elements that are last children you then select (and implicitly create) a new element before and after each.
– Martin Atkins
Nov 15 '11 at 14:52
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CSS: how do I create a gap between rows in a table?
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This solution does not allow you to selectively apply the spacing to certain rows.
– Flimm
Feb 21 '14 at 11:09
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Checkout one file from Subversion
...ithin the repository containing all the files that you wish to work on and Select Checkout.
Step 3: Within new popup window, ensure that the checkout directory points to the correct location on your local PC. There will also be a dropdown menu labeled “checkout depth”. Choose “Only this item...
Understanding keystore, certificates and alias
...d Application Package option of the Eclipse Android tool, you are asked to select a keystore first, and then asked to select a single alias/entry/pair from that keystore. After providing the passwords for both the keystore and the chosen alias, the app is signed and the public key (the certificate) ...