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What is the best way to use a HashMap in C++?
... a hash table-based container, almost all implementations include hash_map from the SGI STL in some form or another.
– James McNellis
Aug 26 '10 at 18:27
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'printf' vs. 'cout' in C++
...rintf is C (however, you can use it in C++, just like almost anything else from C). Now, I'll be honest here; both printf and std::cout have their advantages.
Real differences
Extensibility
std::cout is extensible. I know that people will say that printf is extensible too, but such extension is n...
How to convert R Markdown to PDF?
...g.,
render("input.Rmd", "pdf_document")
Command-line:
When I run render from the command-line (e.g., using a makefile), I sometimes have issues with pandoc not being found. Presumably, it is not on the search path.
The following answer explains how to add pandoc to the R environment.
So for exam...
How to export collection to CSV in MongoDB?
...ed schema perhaps you could retrieve one document, harvest the field names from it with a script and pass it to mongoexport.
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How to get the nvidia driver version from the command line?
...if it has no gpu hardware either. Because it is HPC. And I am accessing it from remote, with ssh.
– Shyamkkhadka
Mar 10 '17 at 18:21
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Integer.toString(int i) vs String.valueOf(int i)
...cal thing, but it is more useful for a developer to use the method valueOf from the String class than from the proper type, as it leads to fewer changes for us to make.
Sample 1:
public String doStuff(int num) {
// Do something with num...
return String.valueOf(num);
}
Sample2:
public ...
How to create a new object instance from a Type
One may not always know the Type of an object at compile-time, but may need to create an instance of the Type .
12 Ans...
Chrome can't load web worker
...
Chrome doesn't let you load web workers when running scripts from a local file.
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Where can I get a list of Ansible pre-defined variables?
...
Argh! From the FAQ:
How do I see a list of all of the ansible_ variables?
Ansible by default gathers “facts” about the machines under management, and these facts can be accessed in Playbooks and in templates. To see a list of ...
How to start working with GTest and CMake
... @weberc2 You have to run make test to run the tests, or run ctest from the build directory. Run ctest -V to see the google test output as well as the ctest output.
– Patrick
Jul 21 '16 at 20:15
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