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Wrapping a C library in Python: C, Cython or ctypes?
... me never writing a Python module before) - should I compile it before, or include Cython source files in sdist and similar questions. I wrote a blog post about it in case anybody has similar problems/doubts: martinsosic.com/development/2016/02/08/…
– Martinsos
...
Printf width specifier to maintain precision of floating-point value
...cant decimal)”.
A simple example would be to print one seventh as in:
#include <float.h>
int Digs = DECIMAL_DIG;
double OneSeventh = 1.0/7.0;
printf("%.*e\n", Digs, OneSeventh);
// 1.428571428571428492127e-01
But let's dig deeper ...
Mathematically, the answer is "0.142857 142857 1428...
Can enums be subclassed to add new elements?
...untState_EventsGroup.CHANGED)) rollBack()..
It can be useful for:
including explicite meta-data about processing logic, less to remember
implementing some of multi-inheritance
we don't want to use class structures, ex. for sending short status messages
...
mysql - how many columns is too many?
...ble, and it's just going to be a 1:1 relationship you should probably just include it in the main table. It's not going to save space, It's not going to perform that much better if you don't request the data vs it not being in the table at all. The only legit reason that comes to mind for me right n...
How does free know how much to free?
...locate. The amount of memory actually used is slightly more than this, and includes extra information that records (at least) how big the block is. You can't (reliably) access that other information - and nor should you :-).
When you call free(), it simply looks at the extra information to find out...
WARNING: UNPROTECTED PRIVATE KEY FILE! when trying to SSH into Amazon EC2 Instance
...files are 600.
Any problems you are having are client side, so be sure to include local OS information with any follow up questions!
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Difference between char* and const char*?
...to modify the string literal in the second case.
Online Sample Example:
#include <string.h>
int main()
{
char *str1 = "string Literal";
const char *str2 = "string Literal";
char source[] = "Sample string";
strcpy(str1,source); //No warning or error, just Undefined Behavio...
Relatively position an element without it taking up space in document flow
...
Include the use of float:right; when you want to make this relative to the right side of the screen so that the values of right or left can be smaller and more manageable.
– Damian Green
...
List vs List
... considered as an inheritance upper-bound: any supertype is allowed up and including the specified type:
class AutoColorComparer implements Comparator<Automobile>
public int compare(Automobile a, Automobile b) {
// Return comparison of colors
}
This can be used with Collecti...
How do I position one image on top of another in HTML?
...g src="b.jpg" style="position: absolute; top: 30; left: 70;"/>
should include the px units within the style eg.
<img src="b.jpg" style="position: absolute; top: 30px; left: 70px;"/>
Other than that, the answer worked fine. Thanks.
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