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Edit the root commit in Git?
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Doesn't this mean that, in order for this to work, you need to have the foresight (or be psychic) to make an empty commit right at the very beginning of your project? This seems to be extremely situational, to me, and generally not practical. What do y...
What's the best free C++ profiler for Windows? [closed]
I'm looking for a profiler in order to find the bottleneck in my C++ code. I'd like to find a free, non-intrusive, and good profiling tool. I'm a game developer, and I use PIX for Xbox 360 and found it very good, but it's not free. I know the Intel VTune , but it's not free either.
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Django: Get an object form the DB, or 'None' if nothing matches
...yset, or None if there is no matching object.
Usage:
p = Article.objects.order_by('title', 'pub_date').first()
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Find index of last occurrence of a sub-string using T-SQL
...ion, followed CHARINDEX, followed again by REVERSE to restore the original order. For instance:
SELECT
mf.name
,mf.physical_name
,reverse(left(reverse(physical_name), charindex('\', reverse(physical_name)) -1))
from sys.master_files mf
shows how to extract the actual database file names f...
Is there a predefined enumeration for Month in the .NET library?
...s it doesn't prove the negative, but a little reasoning wouldn't be out of order: There is no enum because enums can't be localized. Months.January would have little if no meaning to a Russian programmer. This is further supported by looking at the functions that DO provide month names - they are...
What is the difference between a var and val definition in Scala?
...a number out of them. For example, if I have a queue with 2, 1, 3, in that order, I want to get back the number 213. Let's first solve it with a mutable.Queue:
def toNum(q: scala.collection.mutable.Queue[Int]) = {
var num = 0
while (!q.isEmpty) {
num *= 10
num += q.dequeue
}
num
}
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Typical .gitignore file for an Android app
...uration file (sdk path, etc)
local.properties
# Proguard folder generated by Eclipse
proguard/
# Log Files
*.log
# Android Studio Navigation editor temp files
.navigation/
# Android Studio captures folder
captures/
# IntelliJ
*.iml
.idea/workspace.xml
.idea/tasks.xml
.idea/gradle.xml
.idea/asse...
How do I create a Bash alias?
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@Mischinab No, the file just needs to be readable in order for Bash to read it as its configuration file. Making it executable is technically harmless but unnecessary. I would discourage it on nontechnical grounds (you might end up confusing yourself and/or others).
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Why not use Double or Float to represent currency?
... of counting money, at least for countries whose money is valued within an order of magnitude of the US dollar, usually all you need is to be able to store multiples of 10-2, so it doesn't really matter that 1/3 can't be represented.
The problem with floats and doubles is that the vast majority of ...
What is the rationale for all comparisons returning false for IEEE754 NaN values?
...ly exclusive relations are possible: less than, equal, greater than, and unordered. The last case arises when at least one operand is NaN. Every NaN shall compare unordered with everything, including itself.
As far as writing extra code to handle NaNs goes, it is usually possible (though not alway...