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How to install trusted CA certificate on Android device?
... System-installed certificates can be managed on the Android device in the Settings -> Security -> Certificates -> 'System'-section, whereas the user trusted certificates are manged in the 'User'-section there. When using user trusted certificates, Android will force the user of the Android...
How to represent multiple conditions in a shell if statement?
...
Classic technique (escape metacharacters):
if [ \( "$g" -eq 1 -a "$c" = "123" \) -o \( "$g" -eq 2 -a "$c" = "456" \) ]
then echo abc
else echo efg
fi
I've enclosed the references to $g in double quotes; that's good practice, in general. Strictly, the parentheses are...
C++ obtaining milliseconds time on Linux — clock() doesn't seem to work properly
...
You could use gettimeofday at the start and end of your method and then difference the two return structs. You'll get a structure like the following:
struct timeval {
time_t tv_sec;
suseconds_t tv_usec;
}
EDIT: As the two comments below su...
Python memoising/deferred lookup property decorator
... def _lazyprop(self):
if not hasattr(self, attr_name):
setattr(self, attr_name, fn(self))
return getattr(self, attr_name)
return _lazyprop
class Test(object):
@lazyprop
def a(self):
print 'generating "a"'
return range(5)
Interactive sessi...
What is an idempotent operation?
... once with the same input parameters. For example, removing an item from a set can be considered an idempotent operation on the set.
In mathematics, an idempotent operation is one where f(f(x)) = f(x). For example, the abs() function is idempotent because abs(abs(x)) = abs(x) for all x.
These sli...
Resizing an image in an HTML5 canvas
...errible. It looks as if it was downsized in photoshop with the resampling set to 'Nearest Neighbor' instead of Bicubic. I know its possible to get this to look right, because this site can do it just fine using a canvas as well. I've tried using the same code they do as shown in the "[Source]" ...
What is the difference between UTF-8 and ISO-8859-1?
...g.
Latin-1 encodes just the first 256 code points of the Unicode character set, whereas UTF-8 can be used to encode all code points. At physical encoding level, only codepoints 0 - 127 get encoded identically; code points 128 - 255 differ by becoming 2-byte sequence with UTF-8 whereas they are singl...
Can't seem to discard changes in Git
... back to normal (on a Mac):
Completely remove the autocrlf & safecrlf settings from ~/.gitconfig
Completely remove the autocrlf & safecrlf settings from your repo's local config ./.git/config
git rm --cached -r .
git reset --hard
...
Wrap a delegate in an IEqualityComparer
...e the following type:
class Value
{
public string Name { get; private set; }
public int Number { get; private set; }
public Value(string name, int number)
{
Name = name;
Number = number;
}
public override string ToString()
{
return string.Format...
Reset other branch to current without a checkout
...
The workflows you describe are not equivalent: when you perform reset --hard you lose all the changes in the working tree (you might want to make it reset --soft).
What you need is
git update-ref refs/heads/OtherBranch refs/heads/CurrentBranch
...