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Creating .pem file for APNS?
... where you downloaded the files, in my case the Desktop:
$ cd ~/Desktop/
Convert the .cer file into a .pem file:
$ openssl x509 -in aps_development.cer -inform der -out PushChatCert.pem
Convert the private key’s .p12 file into a .pem file:
$ openssl pkcs12 -nocerts -out PushChatKey.pem -in Pu...
Const before or const after?
...bably know that const can be used to make either an object's data or a pointer not modifiable or both.
7 Answers
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What is the most “pythonic” way to iterate over a list in chunks?
I have a Python script which takes as input a list of integers, which I need to work with four integers at a time. Unfortunately, I don't have control of the input, or I'd have it passed in as a list of four-element tuples. Currently, I'm iterating over it this way:
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Forward an invocation of a variadic function in C
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If you don't have a function analogous to vfprintf that takes a va_list instead of a variable number of arguments, you can't do it. See http://c-faq.com/varargs/handoff.html.
Example:
void myfun(const char *fmt, va_list argp) {
vfprintf(stderr, fmt, argp);
}
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Check whether a path is valid in Python without creating a file at the path's target
...file name).
I need to test if the file-name is a valid, e.g. if the file-system will allow me to create a file with such a name.
The file-name has some unicode characters in it.
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How can I limit Parallel.ForEach?
...new ParallelOptions { MaxDegreeOfParallelism = Convert.ToInt32(Math.Ceiling((Environment.ProcessorCount * 0.75) * 1.0)) };
– jKlaus
Dec 2 '15 at 18:18
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PHP random string generator
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Note: str_shuffle() internally uses rand(), which is unsuitable for cryptography purposes (e.g. generating random passwords). You want a secure random number generator instead. It also doesn't allow characters to repeat.
One more way.
UPDATED...
Fragment transaction animation: slide in and slide out
...lns:android="http://schemas.android.com/apk/res/android"
android:shareInterpolator="false">
<translate
android:fromXDelta="-100%p" android:toXDelta="0%"
android:fromYDelta="0%" android:toYDelta="0%"
android:duration="@android:integer/config_mediumAnimTime"/>
</s...
C++: const reference, before vs after type-specifier
...ference itself is immutable, which is redundant; when dealing with const pointers both Fred const* and Fred* const are valid but different.
It's a matter of style, but I prefer using const as a suffix since it can be applied consistently including const member functions.
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Android How to adjust layout in Full Screen Mode when softkeyboard is visible
...Workaround(activity);
}
private View mChildOfContent;
private int usableHeightPrevious;
private FrameLayout.LayoutParams frameLayoutParams;
private AndroidBug5497Workaround(Activity activity) {
FrameLayout content = (FrameLayout) activity.findViewById(android.R.id.conte...