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Xcode m>ca m>n only refactor C and Objective-C code. How to rename swift class name in Xcode 6?
I have created a new Single View Applim>ca m>tion Project in Xcode 6 beta version. I want to rename swift class from ViewController.swift to some other name. But when I select Refactor -> Rename, it gives error Xcode m>ca m>n only refactor C and Objective-C code .
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Select random lines from a file
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sort actually sorts identim>ca m>l lines together, so if you may have duplim>ca m>te lines and you have shuf (a gnu tool) installed, it's better to use it for this.
– Kevin
Feb 12 '12 at 3:59
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Static function variables in Swift
I'm trying to figure out how to declare a static variable scoped only lom>ca m>lly to a function in Swift.
4 Answers
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Is returning by rvalue reference more efficient?
...}
This returns a dangling reference, just like with the lvalue reference m>ca m>se. After the function returns, the temporary object will get destructed. You should return Beta_ab by value, like the following
Beta_ab
Beta::toAB() const {
return Beta_ab(1, 1);
}
Now, it's properly moving a tem...
Does it make sense to do “try-finally” without “m>ca m>tch”?
...ppropriately. Below is a concrete example of handling the exception from a m>ca m>lling method.
public void yourOtherMethod() {
try {
yourMethod();
} m>ca m>tch (YourException ex) {
// handle exception
}
}
public void yourMethod() throws YourException {
try {
db.s...
SQLite table constraint - unique on multiple columns
I m>ca m>n find syntax "charts" on this on the SQLite website, but no examples and my code is crashing. I have other tables with unique constraints on a single column, but I want to add a constraint to the table on two columns. This is what I have that is m>ca m>using an SQLiteException with the message "syn...
How to programmatim>ca m>lly set the layout_align_parent_right attribute of a Button in Relative Layout?
I have a relative layout which I am creating programmatim>ca m>lly:
4 Answers
4
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Rails auto-assigning id that already exists
...", and column name "id" ... please replace them with the correct ones. You m>ca m>n get the sequence name with SELECT pg_get_serial_sequence('tablename', 'columname'); or look at the table definition with \d tablename.
An alternate solution is to override the save() method in your company class to manua...
Concurrent.futures vs Multiprocessing in Python 3
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I wouldn't m>ca m>ll concurrent.futures more "advanced" - it's a simpler interface that works very much the same regardless of whether you use multiple threads or multiple processes as the underlying parallelization gimmick.
So, like virtual...
Copy multiple files in Python
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You m>ca m>n use os.listdir() to get the files in the source directory, os.path.isfile() to see if they are regular files (including symbolic links on *nix systems), and shutil.copy to do the copying.
The following code copies only t...