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get name of a variable or parameter [duplicate]
I would like to get the name of a variable or parameter:
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How to calculate time elapsed in bash script?
I print the start and end time using date +"%T" , which results in something like:
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Add a reference column migration in Rails 4
A user has many uploads. I want to add a column to the uploads table that references the user . What should the migration look like?
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Why should I avoid std::enable_if in function signatures
Scott Meyers posted content and status of his next book EC++11.
He wrote that one item in the book could be "Avoid std::enable_if in function signatures" .
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What's the best way to trim std::string?
I'm currently using the following code to right-trim all the std::strings in my programs:
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Equivalent of typedef in C#
Is there a typedef equivalent in C#, or someway to get some sort of similar behaviour? I've done some googling, but everywhere I look seems to be negative. Currently I have a situation similar to the following:
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Print a file's last modified date in Bash
I can't seem to find how to print out the date of a file. I'm so far able to print out all the files in a directory, but I need to print out the dates with it.
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Default constructor with empty brackets
Is there any good reason that an empty set of round brackets (parentheses) isn't valid for calling the default constructor in C++?
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Declaring an enum within a class
In the following code snippet, the Color enum is declared within the Car class in order to limit the scope of the enum and to try not to "pollute" the global namespace.
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Why do I have to access template base class members through the this pointer?
If the classes below were not templates I could simply have x in the derived class. However, with the code below, I have to use this->x . Why?
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