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bundle install fails with SSL certificate verification error
When I run bundle install for my Rails 3 project on Centos 5.5 it fails with an error:
28 Answers
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Java Map equivalent in C#
...example = new Dictionary<string,string>();
...
example.Add("hello","world");
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Console.Writeline(example["hello"]);
An efficient way to test/get values is TryGetValue (thanx to Earwicker):
if (otherExample.TryGetValue("key", out value))
{
otherExample["key"] = value + 1;
}
With thi...
converting double to integer in java
...a truncated down number
No, round() will always round your double to the correct value, and then, it will be cast to an long which will truncate any decimal places. But after rounding, there will not be any fractional parts remaining.
Here are the docs from Math.round(double):
Returns the closest...
Javascript dynamically invoke object method from string
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if the name of the property is stored in a variable, use []
foo[method]();
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Is the pImpl idiom really used in practice?
...arned about the pImpl idiom. Basically, the idea is to create a structure for the private objects of a class and dynamically allocate them to decrease the compilation time (and also hide the private implementations in a better manner).
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What is the fastest way to compute sin and cos together?
I would like to compute both the sine and co-sine of a value together (for example to create a rotation matrix). Of course I could compute them separately one after another like a = cos(x); b = sin(x); , but I wonder if there is a faster way when needing both values.
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What vim plugins are available for Eclipse? [closed]
...three and would like to know if there are others and what their advantages or disadvantages might be:
4 Answers
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How to pipe list of files returned by find command to cat to view all the files
...ocess as command line arguments to another process
command2 `command1`
for example:
cat `find . -name '*.foo' -print`
(Note these are BACK-QUOTES not regular quotes (under the tilde ~ on my keyboard).)
This will send the output of command1 into command2 as command line arguments. Note that fi...
Copy constructor for a class with unique_ptr
How do I implement a copy constructor for a class that has a unique_ptr member variable? I am only considering C++11.
6 A...
Angularjs if-then-else construction in expression
Can I somehow use if-then-else construction (ternary-operator) in angularjs expression, for example I have function $scope.isExists(item) that has to return bool value.
I want something like this,
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