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What is the difference between the kernel space and the user space?
...d out, and thus have arbitrary hardware accesses.
Otherwise, for example, file permissions would be useless if any program could directly read from disk.
More precisely thanks to Michael Petch: it is actually possible for the OS to allow IO instructions on ring 3, this is actually controlled by th...
How to disable GCC warnings for a few lines of code
...ma warning (disable: ...) . Also I found that in GCC you can override per file compiler flags . How can I do this for "next line", or with push/pop semantics around areas of code using GCC?
...
How many system resources will be held for keeping 1,000,000 websocket open? [closed]
...x. Could you please share additional info on how the kernel was tuned? max file descriptors/tcp window sizes etc?
– quixver
Jun 21 '14 at 21:14
15
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Prevent automatic browser scroll on refresh
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Initially I got this working within a small basic example file to check it out. Once I confirmed that it did work I was baffled to how it wasn't working within my project. Through process-of-elimination I managed to find a single style declaration in my css file that was causing it ...
Python argparse: How to insert newline in the help text?
..."python your_python_program.py --help" for more information
Prepare input file
optional arguments:
-h, --help show this help message and exit
--argument ARGUMENT
First line
Second line
More lines ...
...
good example of Javadoc [closed]
is there a good example of a source file containing Javadoc ?
11 Answers
11
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What's the difference of “./configure” option “--build”, “--host” and “--target”?
...rchitecture of the build machine
--host=the architecture that you want the file to run on
However, when you are building toolchains, things can get more complicated. I think that the following is correct (though I can't say I've ever manually compiled a cross-debugger):
Lets say that you have:
...
Are “while(true)” loops so bad? [closed]
...
or if you're convinced you know how long the longest line of text in your file is, you can do
#include <stdio.h>
char buffer[BUF_SIZE];
while (fgets(buffer, BUF_SIZE, stdin)) {
//do something with the line
}
If you're testing to see whether your user entered a quit command, it's easy to ...
How can I dynamically create derived classes from a base class
...2
>>> s2 = SpecialClass(d=3)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<stdin>", line 8, in __init__
TypeError: Argument d not valid for SpecialClass
I see you are asking for inserting the dynamic names in the naming scope --
now, t...
How do I show the value of a #define at compile-time?
... warning.
From warning you can see location of the previous definition.
vi file of previous definition .
ambarish@axiom:~/cpp$ g++ shiftOper.cpp
shiftOper.cpp:7:1: warning: "LINUX_VERSION_CODE" redefined
shiftOper.cpp:6:1: warning: this is the location of the previous definition
#define LINUX_VER...