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Read file line by line using ifstream in C++
...
#include <fstream>
std::ifstream infile("thefile.txt");
The two standard methods are:
Assume that every line consists of two numbers and read token by token:
int a, b;
while (infile >> a >> b)
{
// process pair (a,b)
}
Line-based parsing, using string streams:
#include ...
Homebrew install specific version of formula?
...en two installed versions. (*)
If you have been using homebrew for longer and never removed older versions (using, for example brew cleanup), chances are that some older version of your program may still be around. If you want to simply activate that previous version, brew switch is the easiest way...
Swift to Objective-C header not created in Xcode 6
... In Build Settings under Packaging, my Defines Module is set to Yes and I created a Product Module Name without spaces. The "*-Swift.h" is not generated by XCode 6. ???
– Loozie
Jun 11 '14 at 20:27
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How to use onSavedInstanceState example please
...vity is about to be destroyed. But how do you store your information in it and bring it back to its original state in onCreate(Bundle savedInstanceState) ? I don't understand how this bundle will restore information. It would be helpful if someone can provide an example.
The Dev guide doesn't do a ...
How do I remove the old history from a git repository?
...e graft, it takes effect right away; you should be able to look at git log and see that the unwanted old commits have gone away:
$ echo 4a46bc886318679d8b15e05aea40b83ff6c3bd47 > .git/info/grafts
$ git log --decorate | tail --lines=11
commit cb3da2d4d8c3378919844b29e815bfd5fdc0210c
Author: Your ...
Concurrent HashSet in .NET Framework?
...t; _data;
This is the recommended option because the type is thread-safe and provide you the same advantages than a HashSet<T> except key and value are different objects.
Source: Social MSDN
ConcurrentBag
If you don't mind about the duplicate entries, you can use the class ConcurrentBag&l...
What are static factory methods?
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if i understand correct, can you add availableConnections.add(db) to method returnDbConnection(DbConnection db)?
– Haifeng Zhang
May 6 '14 at 17:19
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Difference between git stash pop and git stash apply
... for quite some time. I recently found out about the git stash apply command. When I tried it out, it seemed to work the same as git stash pop .
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Getting current date and time in JavaScript
I have a script that prints the current date and time in JavaScript, but the DATE is always wrong. Here is the code:
27 A...
What's the best way to check if a String represents an integer in Java?
...nge looking. I would have used (c < '0' || c > '9')... are the <= and >= operators faster in Java?
– Anonymous
Oct 26 '08 at 1:43
3
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