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What is the difference between g++ and gcc?

... was once upon a time just the GNU C Compiler). Even though they automatically determine which backends (cc1 cc1plus ...) to call depending on the file-type, unless overridden with -x language, they have some differences. The probably most important difference in their defaults is which libraries ...
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Can we instantiate an abstract class?

...that here: - Whenever a new class instance is created, memory space is allocated for it with room for all the instance variables declared in the class type and all the instance variables declared in each superclass of the class type, including all the instance variables that may be hidden....
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How do you run a Python script as a service in Windows?

...braries that come included with ActivePython or can be installed with pywin32 (Python for Windows extensions). This is a basic skeleton for a simple service: import win32serviceutil import win32service import win32event import servicemanager import socket class AppServerSvc (win32serviceutil.Ser...
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Difference between break and continue statement

...necessary to exit a loop before the loop has finished fully iterating over all the step values. For example, looping over a list of numbers until you find a number that satisfies a certain condition. Or looping over a stream of characters from a file until a certain character is read. In the follow...
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Are unused CSS images downloaded?

... "unused" and thusly, any images won't be downloaded. Chrome 26 (possibly all of them, not sure), does download CSS images if they are applied to the <noscript> element, even when JS is enabled. (It isn't immediately clear to me why though, perhaps this is a bug?). It does not download CSS i...
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Maven build failed: “Unable to locate the Javac Compiler in: jre or jdk issue”

...s: Add and set the JRE in menu Window → Preferences... → Java → Installed JREs: JRE type: Standard VM JRE Name: jdk1.6.0_18 JRE home directory: C:\Program Files (x86)\Java\jdk1.6.0_18 If this is not the case, it's possible that the brackets and spaces in the JAVA_HOME path are causing issu...
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In-place type conversion of a NumPy array

...Py array of int32 , how do I convert it to float32 in place ? So basically, I would like to do 6 Answers ...
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How to allocate aligned memory only using the standard library?

... Original answer { void *mem = malloc(1024+16); void *ptr = ((char *)mem+16) & ~ 0x0F; memset_16aligned(ptr, 0, 1024); free(mem); } Fixed answer { void *mem = malloc(1024+15); void *ptr = ((uintptr_t)mem+15) & ~ (uintptr_t)0x0...
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Is there any way to put malicious code into a regular expression?

...o solve. These may only show up on particular input data, but one can generally create one wherein this doesn’t matter. Which ones these are will depend somewhat on how smart the regex compiler you’re using happens to be, because some of these can be detected during compilation time. Regex com...
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Get model's fields in Django

Given a Django model, I'm trying to list all of its fields. I've seen some examples of doing this using the _meta model attribute, but doesn't the underscore in front of meta indicate that the _meta attribute is a private attribute and shouldn't be accessed directly? ... Because, for example, the ...