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Left Align Cells in UICollectionView
...ibutes.representedElementCategory == .cell { // Do not modify header views etc.
let indexPath = layoutAttributes.indexPath
// Retrieve the correct frame from layoutAttributesForItem(at: indexPath):
if let newFrame = layoutAttributesForItem(at: indexPath)?.frame {
...
How exactly does __attribute__((constructor)) work?
...w would that work?) Instead, on platforms using ELF binary format (Linux, etc.), the constructors and destructors are referenced in the .ctors and .dtors sections of the header. True, in the old days, functions named init and fini would be run on dynamic library load and unload if they existed, bu...
What is Cache-Control: private?
...r" may mean many things: OS user, a browser user (e.g. Chrome's profiles), etc. It's not specified.
For me, a more concrete example of Cache-Control: private is that proxy servers (which typically have many users) won't cache it. It is meant for the end user, and no one else.
FYI, the RFC makes ...
Why do 64-bit DLLs go to System32 and 32-bit DLLs to SysWoW64 on 64-bit Windows?
...ws 7, this is no longer true! For reasons of UAC, multiple user sessions, etc. The registry in Windows 7 should be use sparingly and with discretion by developers.
– ryyker
Jun 22 '14 at 15:58
...
When would anyone use a union? Is it a remnant from the C-only days?
..., or implement long double arithmetic for a CPU which does not support it, etc.
Saving storage space when fields are dependent on certain values:
class person {
string name;
char gender; // M = male, F = female, O = other
union {
date vasectomized; // for males ...
The new keyword “auto”; When should it be used to declare a variable type? [duplicate]
...eneral type of operation you're doing (or type of template you're writing, etc.) is something you'd be better off avoiding.
There are also at least a few situations where you clearly need to avoid auto. If you're using something like a proxy type where you're depending on the conversion from proxy-...
How to pull request a wiki page on GitHub?
...g. named "personal") and push to it normally. That way one can also still fetch from the real origin repository normally to synchronize with the work of others.
– tne
Apr 4 at 17:56
...
Using .NET, how can you find the mime type of a file based on the file signature not the extension
...I'm testing. I've been changing the extension of the CSV (to .png, .jpeg, etc) and the mimetype changes with the extension (image/png, image/jpeg). I could be wrong, but it was my understanding that Urlmon.dll determined the mimetype using the file's metadata, not just it's extension
...
How did Google manage to do this? Slide ActionBar in Android application
...up(ViewGroup viewGroup, boolean enabled) {
int childCount = viewGroup.getChildCount();
for (int i = 0; i < childCount; i++) {
View view = viewGroup.getChildAt(i);
if(view.isFocusable())
view.setEnabled(enabled);
if (view instanceof ViewGroup) {
...
Using StringWriter for XML Serialization
...ncoding is one of the 8-bit options (i.e. UTF-8, Windows-1252, iso-8859-1, etc), then you must pass in as SqlDbType.VarChar. Failure to match the declared encoding with the proper 8 or 16 -bit SQL Server datatype will result in the "unable to switch the encoding" error that you were getting.
For ex...