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Why are function pointers and data pointers incompatible in C/C++?
...ry but C doesn't limit itself to only certain types of architectures if at all possible.
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How do I use extern to share variables between source files?
...ler is informed that a
variable exists (and this is its type); it does not allocate the
storage for the variable at that point.
A variable is defined when the compiler allocates the storage for
the variable.
You may declare a variable multiple times (though once is sufficient);
you may only defin...
How to make PDF file downloadable in HTML link?
...
header("Content-Length: " . filesize($file));
flush(); // this doesn't really matter.
$fp = fopen($file, "r");
while (!feof($fp))
{
echo fread($fp, 65536);
flush(); // this is essential for large downloads
}
fclose($fp);
PS: and obviously run some sanity checks on the "file" variable t...
python design patterns [closed]
...for their existence.
It's nothing more than
class Null(object):
def __init__(self, *args, **kwargs):
"Ignore parameters."
return None
def __call__(self, *args, **kwargs):
"Ignore method calls."
return self
def __getattr__(self, mname):
"Ignore...
GCC compile error with >2 GB of code
...inv2 -
32*s.x12pow2*s.x15*s.x35*s.x45*s.mWpowinv2 -...
right?
If all your functions have a similar "format" (multiply n numbers m times and add the results - or something similar) then I think you can do this:
change the generator program to output offsets instead of strings (i.e. instea...
Service Reference Error: Failed to generate code for the service reference
...
Have to uncheck the Reuse types in all referenced assemblies from Configure service reference option
Check this for details
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How to avoid the “Circular view path” exception with Spring MVC test
... the View.
The JstlView class extends InternalResourceView which is
Wrapper for a JSP or other resource within the same web application.
Exposes model objects as request attributes and forwards the request
to the specified resource URL using a javax.servlet.RequestDispatcher.
A URL for...
Show pending migrations in rails
...
This command will list all migrations with their status (UP or DOWN)
Rails 3 and 4
rake db:migrate:status
Rails 5
rake db:migrate:status
# Or
rails db:migrate:status
...
My Git repository is in the wrong root directory. Can I move it? (../ instead of ./)
...ave behind a lot of "moved this file here" history entries that aren't actually changes, but you fixing a screwup at creation time. Better to just create it right.
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Removing multiple keys from a dictionary safely
...
Why not like this:
entries = ('a', 'b', 'c')
the_dict = {'b': 'foo'}
def entries_to_remove(entries, the_dict):
for key in entries:
if key in the_dict:
del the_dict[key]
A more compact version was provided by mattbornski using dict.pop()
...