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What is the 'override' keyword in C++ used for? [duplicate]
...derived2: public base
{
public:
int foo(int x) override { ... } // ERROR
};
In derived2 the compiler will issue an error for "changing the type". Without override, at most the compiler would give a warning for "you are hiding virtual method by same name".
...
Hadoop “Unable to load native-hadoop library for your platform” warning
... CentOs . When I run start-dfs.sh or stop-dfs.sh , I get the following error:
21 Answers
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Django import error - no module named django.conf.urls.defaults
...', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f19962736%2fdjango-import-error-no-module-named-django-conf-urls-defaults%23new-answer', 'question_page');
}
);
Post as a guest
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How can I configure Logback to log different levels for a logger to different destinations?
...ngs with Logback filters. The below configuration will only print warn and error messages to stderr, and everything else to stdout.
logback.xml
<appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
<target>System.out</target>
<filter class="com.foo.StdOutFil...
GPU Emulator for CUDA programming without the hardware [closed]
...ved in a future release.
/usr/include/i386-linux-gnu/bits/byteswap.h(47): error: identifier "__builtin_bswap32" is undefined
/usr/include/i386-linux-gnu/bits/byteswap.h(111): error: identifier "__builtin_bswap64" is undefined
/home/user/Downloads/helloworld.cu(12): error: identifier "cudaDeviceSy...
Is it unnecessary to put super() in constructor?
...class constructor to be called (in the subclass constructor) is a compiler error so it must be specified.
For example:
public class Base { }
public class Derived extends Base { }
This is fine because if you add no constructor explicitly Java puts in a public default constructor for you.
public ...
Writing outputs to log file and console
... running the user script like log file name and path, redirect outputs and errors to log file, database connection details, etc ) which redirects all the outputs ( echo messages ) and errors to the log file from the executed script using the following code:
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What is going wrong when Visual Studio tells me “xcopy exited with code 4”
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Xcopy exit code 4 means "Initialization error occurred. There is not enough memory or disk space, or you entered an invalid drive name or invalid syntax on the command line."
It looks like Visual Studio is supplying invalid arguments to xcopy. Check your post-buil...
Python argparse: Make at least one argument required
...
if not (args.process or args.upload):
parser.error('No action requested, add -process or -upload')
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json.net has key method?
If my response has key "error" I need to process error and show warning box.
3 Answers
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