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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...
How to use WeakReference in Java and Android development?
...eturn;
}
textView.updateDropDownForFilter(adapter.getCount());
}
};
}
And the PopupDataSetObserver is used in setting adapter.
public <T extends ListAdapter & Filterable> void setAdapter(T adapter) {
if (mObserver == null) {
mObserver ...
Migrating from JSF 1.2 to JSF 2.0
...l this be? I noticed that some attributes in custom tags have been changed etc.
5 Answers
...
What is the JSF resource library for and how should it be used?
...s on the web wherein the common content/file type like "js", "css", "img", etc is been used as library name are misleading.
Real world examples
To start, let's look at how existing JSF implementations like Mojarra and MyFaces and JSF component libraries like PrimeFaces and OmniFaces use it. No one...
Get type of all variables
... "factor"
$Date
[1] "Date"
$Open
[1] "numeric"
$High
[1] "numeric"
... etc.
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