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What is compiler, linker, loader?
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=====> COMPILATION PROCESS <======
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|----> Input is Source file(.c)
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V
+=================+
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| C Preproce...
Concatenate multiple files but include filename as section headers
...st:
tail -n +1 file1.txt file2.txt file3.txt
Output:
==> file1.txt <==
<contents of file1.txt>
==> file2.txt <==
<contents of file2.txt>
==> file3.txt <==
<contents of file3.txt>
If there is only a single file then the header will not be printed. If using ...
What is the performance cost of having a virtual method in a C++ class?
...code address that is not in cache then the whole program comes to a dead halt while the instructions are fetched from main memory. This is always a significant stall: on Xenon, about 650 cycles (by my tests).
However this isn't a problem specific to virtual functions because even a direct function...
Ruby: Can I write multi-line string with no concatenation?
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There are pieces to this answer that helped me get what I needed (easy multi-line concatenation WITHOUT extra whitespace), but since none of the actual answers had it, I'm compiling them here:
str = 'this is a multi-line string'\
' using implicit concatenation'\
' to prevent spare \n\'s'
=&g...
How to use a servlet filter in Java to change an incoming servlet request url?
How can I use a servlet filter to change an incoming servlet request url from
3 Answers
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Is there a performance difference between i++ and ++i in C++?
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Can't the compiler avoid this altogether if operator++ is inlined?
– Eduard - Gabriel Munteanu
Feb 18 '09 at 15:59
16
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How do you round a float to two decimal places in jruby
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Float#round can take a parameter in Ruby 1.9, not in Ruby 1.8. JRuby defaults to 1.8, but it is capable of running in 1.9 mode.
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How do I use .woff fonts for my website?
...aving that definitions, you can just write, for example,
In HTML code:
<div class="mydiv">
<b>this will be written with awesome-font-bold.woff</b>
<br/>
<b><i>this will be written with awesome-font-boldoblique.woff</i></b>
<br/>...
What's the difference between fill_parent and wrap_content?
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Gravity vs layout_gravity
XML for above images
Vertical LinearLayout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
...
Entity Framework 5 Updating a Record
...atedUser" is an instance of an object already populated with a FirstOrDefault() or similar, so I am updating only the properties I changed and setting others to ISModified=false. This works fine. But, what I am trying to do is to update an object without populating it first, without making any Firs...