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Throwing exceptions from constructors
...ing a debate with a co-worker about throwing exceptions from constructors, and thought I would like some feedback.
10 Answe...
git ignore vim temporary files
...le .gitignore the line
*~
Vim also creates swap files that have the swp and swo extensions. to remove those use the lines:
*.swp
*.swo
This will ignore all the vim temporary files in a single project
If you want to do it globally, you can create a .gitignore file in your home (you can give it...
Getting A File's Mime Type In Java
... Be aware that Files.probeContentType(Path) is buggy on several OSes and a lot of bug reports have been filed. I have had a problem with software working on ubuntu but failing on windows. It seemed that on windows Files.probeContentType(Path) always returned null. It was not my system so I did...
How to navigate through a vector using iterators? (C++)
... strings instead of the [] operator or the "at" method. From what I understand, iterators can be used to navigate through containers, but I've never used iterators before, and what I'm reading is confusing.
...
How to fix Error: laravel.log could not be opened?
I'm pretty new at laravel, in fact and I'm trying to create my very first project. for some reason I keep getting this error (I haven't even started coding yet)
...
Position of least significant bit that is set
...hed. My favourite solution for your problem (from that site) is «multiply and lookup»:
unsigned int v; // find the number of trailing zeros in 32-bit v
int r; // result goes here
static const int MultiplyDeBruijnBitPosition[32] =
{
0, 1, 28, 2, 29, 14, 24, 3, 30, 22, 20, 15, 25, 17...
What should be the values of GOPATH and GOROOT?
...ing. On Plan 9, the value is a list.
GOPATH must be set to get, build and install packages outside the
standard Go tree.
GOROOT is discussed in the installation instructions:
The Go binary distributions assume they will be installed in
/usr/local/go (or c:\Go under Windows), but it is...
Django: Display Choice Value
...rio)? Ideally without the overhead of instantiating the Models one by one and calling get_field_display().
– DylanYoung
Mar 23 '17 at 17:34
7
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How can I measure the actual memory usage of an application or process?
...r example, Valgrind can give you insights about the amount of memory used, and, more importantly, about possible memory leaks in your program. The heap profiler tool of Valgrind is called 'massif':
Massif is a heap profiler. It performs detailed heap profiling by taking regular snapshots of a prog...
What is thread contention?
...he most obvious example of contention is on a lock. If thread A has a lock and thread B wants to acquire that same lock, thread B will have to wait until thread A releases the lock.
Now, this is platform-specific, but the thread may experience slowdowns even if it never has to wait for the other th...