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How is “int* ptr = int()” value initialization not illegal?
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@Nils because quite obviously 0 could mean a null pointer constant or the number 0, while nullptr is obvious a null pointer constant. In addition, as Jamin said, it also has "extra compile-time checks". Do try to think before you type.
– Mil...
What does character set and collation mean exactly?
I can read the MySQL documentation and it's pretty clear. But, how does one decide which character set to use? On what data does collation have an effect?
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Returning from a finally block in Java
...the code, it should fail to compile. Unfortunately backwards compatibility means that unanticipated ingenious foolishness cannot be prohibited.
Exceptions can be thrown from finally blocks, but in that case the exhibited behaviour is almost certainly what you want.
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Android - Dynamically Add Views into View
...in any details dynamically here
TextView textView = (TextView) v.findViewById(R.id.a_text_view);
textView.setText("your text");
// insert into main view
ViewGroup insertPoint = (ViewGroup) findViewById(R.id.insert_point);
insertPoint.addView(v, 0, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.F...
Best way to use multiple SSH private keys on one client
...it usage within the same server). I tried simply stacking the keys in the id_rsa files to no avail.
20 Answers
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How to declare strings in C [duplicate]
...eing intentionally pedantic. You know very well that my statement doesn't mean 'renders the program useless'. The surrounding code is irrelevant. If I write to memory that I shouldn't write to, that's bad behavior. That's a bug. Even if no one notices, that's still a bug. Even if my code never runs...
Javascript Equivalent to C# LINQ Select
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Yes, Array.map() or $.map() does the same thing.
//array.map:
var ids = this.fruits.map(function(v){
return v.Id;
});
//jQuery.map:
var ids2 = $.map(this.fruits, function (v){
return v.Id;
});
console.log(ids, ids2);
http://jsfiddle.net/NsCXJ/1/
Since array.map isn't supported ...
Difference between maven scope compile and provided for JAR packaging
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@Jacob what is meant by "whereas compile scope is available in all classpaths."?
– Geek
Apr 2 '13 at 7:24
1
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What's the difference between findAndModify and update in MongoDB?
...ll get back a different item than what you updated.
Doing it "atomically" means you are guaranteed that you are getting back the exact same item you are updating - i.e. no other operation can happen in between.
share
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ruby on rails f.select options with custom attributes
...e in your question. Using html5 data-attributes:
<%= f.select :country_id, options_for_select(
@countries.map{ |c| [c.name, c.id, {'data-currency_code'=>c.currency_code}] }) %>
Adding an initial selection:
<%= f.select :country_id, options_for_select(
@countries.map{ |c| [c.n...