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Modern way to filter STL container?
...xample from cplusplus.com for std::copy_if:
std::vector<int> foo = {25,15,5,-5,-15};
std::vector<int> bar;
// copy only positive numbers:
std::copy_if (foo.begin(), foo.end(), std::back_inserter(bar), [](int i){return i>=0;} );
std::copy_if evaluates the lambda expression for ever...
How to pipe input to a Bash while loop and preserve variables after loop ends
... in a script makes the modfied sum available after the loop:
FILECONTENT="12 Name
13 Number
14 Information"
shopt -s lastpipe # Comment this out to see the alternative behaviour
sum=0
echo "$FILECONTENT" |
while read number name; do ((sum+=$number)); done
echo $sum
Doing this at the command line ...
File Upload without Form
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edited May 13 '15 at 20:37
AbdelHady
6,67077 gold badges4545 silver badges7878 bronze badges
answer...
HTTP POST with URL query parameters — good idea or not? [closed]
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271
If your action is not idempotent, then you MUST use POST. If you don't, you're just asking fo...
C# Iterate through Class properties
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228
You could possibly use Reflection to do this. As far as I understand it, you could enumerate t...
When to use setAttribute vs .attribute= in JavaScript?
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edited Feb 2 '12 at 20:03
answered Oct 12 '10 at 21:49
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Utility classes are evil? [closed]
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128
Utility classes aren't exactly evil, but they can violate the principles that compose a good ob...
Can I get the name of the current controller in the view?
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252
controller_name holds the name of the controller used to serve the current view.
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How to convert a string to integer in C?
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12 Answers
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Providing white space in a Swing GUI
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+200
Using various LayoutManagers one can provide spacing between various components.
1.) BorderLayout :
Overloaded Constructor : Bo...