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Are there benefits of passing by pointer over passing by reference in C++?
...u to explicitly see at the call site whether the object is passed by value or by reference:
// Is mySprite passed by value or by reference? You can't tell
// without looking at the definition of func()
func(mySprite);
// func2 passes "by pointer" - no need to look up function definition
func2(&a...
Print string and variable contents on the same line in R
Is there a way to print text and variable contents on the same line? For example,
8 Answers
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How do I use installed packages in PyCharm?
...
But I don't know the path..
Open the python interpreter where you can import the module.
>> import gnuradio
>> gnuradio.__file__
"path/to/gnuradio"
Most commonly you'll have a folder structure like this:
foobarbaz/
gnuradio/
__init__.py
other_file.py
You want to add foo...
How can I save application settings in a Windows Forms application?
What I want to achieve is very simple: I have a Windows Forms (.NET 3.5) application that uses a path for reading information. This path can be modified by the user, by using the options form I provide.
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What are the new documentation commands available in Xcode 5? [closed]
... the ability to document your own code with a special comment syntax. The format is similar to doxygen, but appears to only support a subset of those features .
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structure vs class in swift language
From Apple book
"One of the most important differences between structures and classes is that structures are always copied when they are passed around in your code, but classes are passed by reference."
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How do you determine the ideal buffer size when using FileInputStream?
...w big should I make the buffer used to read from the files to maximize performance?
9 Answers
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Can I mix Swift with C++? Like the Objective-C .mm files
...-C++.
Swift doesn't have the same relationship. It is not a superset of C or C++, and you can't directly use either in a .swift file.
"Using Swift with Cocoa and Objective-C" also tells us:
You cannot import C++ code directly into Swift. Instead, create an Objective-C or C wrapper for C++ code...
What is the best way to ensure only one instance of a Bash script is running? [duplicate]
...] $
[Terminal #2] $ lockfile -r 0 /tmp/the.lock
[Terminal #2] lockfile: Sorry, giving up on "/tmp/the.lock"
[Terminal #1] $ rm -f /tmp/the.lock
[Terminal #1] $
[Terminal #2] $ lockfile -r 0 /tmp/the.lock
[Terminal #2] $
After /tmp/the.lock has been acquired your script will be the only one w...
Why doesn't C have unsigned floats?
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Why C++ doesn't have support for unsigned floats is because there is no equivalent machine code operations for the CPU to execute. So it would be very inefficient to support it.
If C++ did support it, then you would be sometimes using an unsigned...