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What is the fastest integer division supporting division by zero no matter what the result is?
... x, int y)
{
y += y == 0;
return x/y;
}
The compiler basically recognizes that it can use a condition flag of the test in the addition.
As per request the assembly:
.globl f
.type f, @function
f:
pushl %ebp
xorl %eax, %eax
movl %esp, %ebp
movl 12(...
Why does pthread_cond_wait have spurious wakeups?
... , Tom Payne wrote:
> >Kaz Kylheku wrote:
> >: It is so because implementations can sometimes not avoid inserting
> >: these spurious wakeups; it might be costly to prevent them.
> >But why? Why is this so difficult? For example, are we talking about
> >situa...
Inheriting class methods from modules / mixins in Ruby
... putting up with the fact, that your suggestion is as elegant as the practical solution of this problem gets. But I'd appreciate to know the reason why something that works with classes does not work with modules.
– Boris Stitnicky
May 21 '12 at 22:00
...
Call Go functions from C
...
You can call Go code from C. it is a confusing proposition though.
The process is outlined in the blog post you linked to. But I can see how that isn't very helpful. Here is a short snippet without any unnecessary bits. It shou...
What does “fragment” mean in ANTLR?
... give is a poor one: you don't want a lexer to produce a NUMBER token that can be a hex, decimal or octal number. That would mean you'd need to inspect the NUMBER token in a production (parser rule). You could better let the lexer produce INT, OCT, and HEX tokens and create a production rule: number...
Using a ListAdapter to fill a LinearLayout inside a ScrollView layout
...ptable. So I turned to Flo's approach with headers. It works much faster because list views are created on demand when user scrolls, not at the time the view is created.
Resume: The manual addition of views to layout is easier to code (thus potentially less moving parts and bugs), but suffers from ...
Can I list-initialize a vector of move-only type?
...initializer list elements in the current revision of the language.
Specifically, we have:
typedef const E& reference;
typedef const E& const_reference;
typedef const E* iterator;
typedef const E* const_iterator;
const E* begin() const noexcept; // first element
const E* end() const noexc...
PHP code to convert a MySQL query to CSV [closed]
...) Records Found!\n";
}
header("Content-type: application/octet-stream");
header("Content-Disposition: attachment; filename=your_desired_name.xls");
header("Pragma: no-cache");
header("Expires: 0");
print "$header\n$data";
...
Does PostgreSQL support “accent insensitive” collations?
...n PostgreSQL
Among other things, it provides the function unaccent() you can use with your example (where LIKE seems not needed).
SELECT *
FROM users
WHERE unaccent(name) = unaccent('João');
Index
To use an index for that kind of query, create an index on the expression. However, Postgres ...
CSS media queries: max-width OR max-height
When writing a CSS media query, is there any way you can specify multiple conditions with "OR" logic?
3 Answers
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