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What specifically are wall-clock-time, user-cpu-time, and system-cpu-time in UNIX?
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Wall-clock time is the time that a clock on the wall (or a stopwatch in hand) would measure as having elapsed between the start of the process and 'now'.
The user-cpu time and system-cpu time are pretty much as you said - the amount of time spent in user code and the amount of ...
How to get Linux console window width in Python
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import os
rows, columns = os.popen('stty size', 'r').read().split()
uses the 'stty size' command which according to a thread on the python mailing list is reasonably universal on linux. It opens the 'stty size' command as a fi...
AngularJS ngClass conditional
Is there any way to make an expression for something like ng-class to be a conditional?
11 Answers
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Proper REST response for empty table?
...he table was truncated so there are no users. What is the proper response for this scenario: 404 or 204 ?
5 Answers
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How to read/process command line arguments?
I am originally a C programmer. I have seen numerous tricks and "hacks" to read many different arguments.
17 Answers
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Byte[] to InputStream or OutputStream
I have a blob column in my database table, for which I have to use byte[] in my Java program as a mapping and to use this data I have to convert it to InputStream or OutputStream . But I don't know what happens internally when I do so. Can anyone briefly explain me what's happening when I do th...
Forward declaring an enum in C++
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The reason the enum can't be forward declared is that without knowing the values, the compiler can't know the storage required for the enum variable. C++ Compiler's are allowed to specify the actual storage space based on the size necessary to contain al...
What is the C++ function to raise a number to a power?
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pow() in the cmath library. More info here.
Don't forget to put #include<cmath> at the top of the file.
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Twitter Bootstrap - add top space between rows
... to add margin top to class="row" elements using twitter bootstrap framework?
19 Answers
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JSTL in JSF2 Facelets… makes sense?
...ich do not extend from UIComponent are also taghandlers, e.g. <f:validator>, <ui:include>, <ui:define>, etc. The ones which extend from UIComponent are also JSF UI components, e.g. <f:param>, <ui:fragment>, <ui:repeat>, etc. From JSF UI components only the id and ...