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Efficient way to return a std::vector in c++
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@Nawaz I agree. I'm not sure what the best practice is now on SO regarding questions on C++ but not specifically C++11. I suspect I should be inclined to give C++11 answers to a student, C++03 answers to someone waist-deep in production code. Do you have an opinion?
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Compare integer in bash, unary operator expected
...ces! The shell will replace $i as follows:
if [ -ge 2 ] ; then ...
Now that variable substitutions are done, the shell proceeds with the comparison and.... fails because it cannot see anything intelligible to the left of -gt. However, quoting $i:
if [ "$i" -ge 2 ] ; then ...
becomes:
if...
Bash variable scope
...piping into the while loop, a sub-shell is created to run the while loop.
Now this child process has its own copy of the environment and can't pass any
variables back to its parent (as in any unix process).
Therefore you'll need to restructure so that you're not piping into the loop.
Alternatively...
When to use a Content Provider
... with other apps.
So even if you don't need any of these functionalities now, you might need them in future and its good to go the extra mile and implement them right now.
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How do I use spaces in the Command Prompt?
...whole command had to be enclosed again by another pair of quotation marks. Now it works! Thanks!
– Arise
May 30 '13 at 6:36
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How to import local packages without gopath
...t" way to do it. You should be using vendor capabilities, vgo, or dep (for now) that are enabled by default in Go 1.6; see. You basically add your "external" or "dependent" packages within a vendor directory; upon compilation the compiler will use these packages first.
Found. I was able import lo...
How can I represent an 'Enum' in Python?
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The original PEP354 is no longer merely rejected, but is now marked superseded. PEP435 adds a standard Enum for Python 3.4. See python.org/dev/peps/pep-0435
– Peter Hansen
May 10 '13 at 19:05
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Equation for testing if a point is inside a circle
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if dx>R then
return false.
if dy>R then
return false.
Now imagine a square diamond drawn inside this circle such that it's vertices touch this circle:
if dx + dy <= R then
return true.
Now we have covered most of our space and only a small area of this circle remains ...
What does the number in parentheses shown after Unix command names in manpages mean?
...ant is that many years ago when disk space was more of an issue than it is now the sections could be installed individually.
Many systems only had 1 and 8 installed for instance. These days people tend to look the commands up on google instead.
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Visual Studio build fails: unable to copy exe-file from obj\debug to bin\debug
...e reason, changing the version to 2.0.0.0 made things work again. I don't know if it's a Windows 7 specific thing (I've only been using it for 3-4 weeks), or if it's random, or what, but it fixed it for me. I'm guessing that VS was keeping a handle on each file it generated, so it would know how to ...