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What's the difference of “./configure” option “--build”, “--host” and “--target”?
... normal cross-compilation of a library or binary you use
--build=the architecture 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...
Is < faster than
...
No, it will not be faster on most architectures. You didn't specify, but on x86, all of the integral comparisons will be typically implemented in two machine instructions:
A test or cmp instruction, which sets EFLAGS
And a Jcc ...
How to validate phone numbers using regex
...g to put together a comprehensive regex to validate phone numbers. Ideally it would handle international formats, but it must handle US formats, including the following:
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C++11 range based loop: get item by value or reference to const
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If you don't want to change the items as well as want to avoid making copies, then auto const & is the correct choice:
for (auto const &x : vec)
Whoever suggests you to use auto & is wrong. Ignore them.
Here is recap:
Choose auto x when yo...
Maximum Length of Command Line String
... Microsoft documentation: Command prompt (Cmd. exe) command-line string limitation
On computers running Microsoft Windows XP or later, the maximum length of the string that you can use at the command prompt is 8191 characters.
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How to pass object with NSNotificationCenter
...follow
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edited Oct 31 '14 at 13:53
answered Oct 25 '11 at 22:42
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return statement vs exit() in main()
Should I use exit() or just return statements in main() ? Personally I favor the return statements because I feel it's like reading any other function and the flow control when I'm reading the code is smooth (in my opinion). And even if I want to refactor the main() function, having return...
PEP 8, why no spaces around '=' in keyword argument or a default parameter value?
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I guess that it is because a keyword argument is essentially different than a variable assignment.
For example, there is plenty of code like this:
kw1 = some_value
kw2 = some_value
kw3 = some_value
some_func(
1,
2,
kw1=kw1,
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Modify request parameter with servlet filter
...existing web application is running on Tomcat 4.1. There is an XSS issue with a page, but I can't modify the source. I've decided to write a servlet filter to sanitize the parameter before it is seen by the page.
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What is the difference between integration and unit tests?
I know the so-called textbook definition of unit tests and integration tests. What I am curious about is when it is time to write unit tests... I will write them to cover as many sets of classes as possible.
...