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Why not infer template parameter from constructor?
my question today is pretty simple: why can't the compiler infer template parameters from class constructors, much as it can do from function parameters? For example, why couldn't the following code be valid:
...
What is the closest thing Windows has to fork()?
...the Win32 API. As a result, they
are much more efficient. Changing the
compiler's driver program to call
spawn instead of fork was a trivial
change and increased compilation
speeds by twenty to thirty percent in
our tests.
However, spawn and exec present their
own set of difficult...
Why is f(i = -1, i = -1) undefined behavior?
...d in any order and may overlap (within a single thread of execution, the
compiler may interleave the CPU instructions that comprise A and B)
evaluations of A and B are indeterminately-sequenced: they may be performed in any order but may not overlap: either A will be complete
before B, or B w...
Accessing MVC's model property from Javascript
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What is the best way to implement nested dictionaries?
...d you don't know what you're going to get for keys, but repetitive usage becomes quite burdensome, and I don't think anyone would want to keep up the following:
d = dict()
d.setdefault('foo', {}).setdefault('bar', {})
d.setdefault('foo', {}).setdefault('baz', {})
d.setdefault('fizz', {}).setdefault...
Why don't self-closing script elements work?
...l, “do not” isn't the same as “must not”. This is a guideline (for compatibility, as suggested by the section title), not a rule.
– Konrad Rudolph
Sep 16 '08 at 13:11
46
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Is there a typical state machine implementation pattern?
...ended to support multiple state machines, etc. Transition actions can be accommodated as well:
typedef void transition_func_t( instance_data_t *data );
void do_initial_to_foo( instance_data_t *data );
void do_foo_to_bar( instance_data_t *data );
void do_bar_to_initial( instance_data_t *data );
voi...
Why should we typedef a struct so often in C?
...int_new(int x, int y)
{
Point a;
a.x = x;
a.y = y;
return a;
}
becomes cleaner when you don't need to see the "struct" keyword all over the place, it looks more as if there really is a type called "Point" in your language. Which, after the typedef, is the case I guess.
Also note that whil...
Fastest Way to Serve a File Using PHP
...r .htaccess if you allow it)
XSendFile on
XSendFilePath /home/www/example.com/htdocs/files/
With this module the file path could either be absolute or relative to the specified XSendFilePath.
Lighttpd
The mod_fastcgi support this when configured with
"allow-x-send-file" => "enable"
The ...