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What is meant by Resource Acquisition is Initialization (RAII)?
...h resources, it also makes your code much cleaner as you don't need to mix error handling code with the main functionality.
* Update: "local" may mean a local variable, or a nonstatic member variable of a class. In the latter case the member variable is initialized and destroyed with its owner obje...
When should I use the new keyword in C++?
...se, there are many times that you code will be much simpler (e.g. handling error cases) using Method 2 (the one without the new)
– Daniel LeCheminant
Mar 18 '09 at 1:04
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Rails: Default sort order for a rails model?
...he block is evaluated at runtime. If you don't use a block you'll get this error:
Support for calling #default_scope without a block is removed. For example instead of default_scope where(color: 'red'), please use default_scope { where(color: 'red') }. (Alternatively you can just redefine self.d...
What does “Auto packing the repository for optimum performance” mean?
...... fatal: Out of memory, malloc failed (tried to allocate 79610689 bytes) error: failed to run repack -- this is what I get for sticking our entire codebase into one git repo. Guess I'm going to kill apps and force repack "manually"
– ruffin
Feb 7 '13 at 15:07...
What data is stored in Ephemeral Storage of Amazon EC2 instance?
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Actually, I just went ahead and did this but there was an error anyway: Unable to connect to your database server using the provided settings. Filename: core/Loader.php Line Number: 346 Any ideas? This wasn't happening prior to doing this.
– James
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C++ lambda with captures as a function pointer
...code compiles fine without lambda captures, but there is a type conversion error with lambda capture.
Solution with C++11 is to use std::function (edit: another solution that doesn't require modifying the function signature is shown after this example). You can also use boost::function (which ac...
How to set custom location for local installation of npm package?
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When doing this, I am getting error No version provided in package.json
– FooBar
Aug 30 '16 at 20:06
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When to use dynamic vs. static libraries
...pletely unusable due to unresolved references, but it won't cause a linker error until you reference a function or variable from those object files. This may happen long after the library is written.
Debug symbols: You may want a separate PDB for each static library, or you may want the debug symbol...
How to use Greek symbols in ggplot2?
... thanks. But how's that exactly? xlab(expression(Delta)price) gives an error
– jf328
Mar 30 '17 at 10:03
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How to declare std::unique_ptr and what is the use of it?
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I cannot use unique_ptr, without getting an error: The text ">" is unexpected. It may be that this token was intended as a template argument list terminator but the name is not known to be a template., even though I have #include <utility> and #include <me...