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Fastest way to determine if an integer's square root is an integer
... if( x == 0 )
return true;
// Check mod 255 = 3 * 5 * 17, for fun
int64 y = x;
y = (y & 4294967295LL) + (y >> 32);
y = (y & 65535) + (y >> 16);
y = (y & 255) + ((y >> 8) & 255) + (y >> 16);
if( bad255[y] )
return false;...
What kinds of patterns could I enforce on the code to make it easier to translate to another program
... suspect trying to get the Python AST to model PHP is going to be a lot of fun).
The reason I started to build DMS originally was to build foundations that had very few such assumptions built in. It has some that give us headaches. So far, no black holes. (The hardest part of my job over the las...
How to make good reproducible pandas examples
...ersions of them) in the step which is causing you trouble.
Anyways, have fun learning Python, NumPy and Pandas!
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Why doesn't Java offer operator overloading?
...overwrite the previous value of the object referred to by a, then a member function would have to be invoked.
Complex a, b, c;
// ...
a = b.add(c);
In C++, this expression tells the compiler to create three (3) objects on the stack, perform addition, and copy the resultant value from the temporar...
How can I perform a culture-sensitive “starts-with” operation from the middle of a string?
...ing to use CompareOptions.IgnoreCase.
Unfortunately there is no case fold function built-in and the poor man's case folding doesn't work either because there is no full case mapping - the ToUpper method
doesn't turn ß into SS.
For example this works in Java (and even in Javascript), given string...
File I/O in Every Programming Language [closed]
...but I did the best I could. Let the downvoting begin! :) I still find it a fun exercise.
HAI
CAN HAS STDIO?
PLZ OPEN FILE "FILEIO.TXT" ITZ "TehFilez"?
AWSUM THX
BTW #There is no standard way to output to files yet...
VISIBLE "Hello" ON TehFilez
BTW #There isn't a standard...
NOT using repository pattern, use the ORM as is (EF)
...gration to another DB technology or b) you're choosing a DB technology for fun or c) something has gone horribly wrong with the first technology you decided to use.
Why throw away the rich LINQ syntax?
LINQ and EF were developed so you could do neat stuff with it to read and traverse object graphs...
Why does the C preprocessor interpret the word “linux” as the constant “1”?
...d unix macro:
main() { printf(&unix["\021%six\012\0"],(unix)["have"]+"fun"-0x60);}
It prints "unix", but for reasons that have absolutely nothing to do with the spelling of the macro name.
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Alternatives to gprof [closed]
... was an attempt to remedy the limitations of pc-only sampling.
that timing functions is more important than capturing time-consuming lines of code.
The reason for that myth is that gprof was not able to capture stack samples, so instead it times functions, counts their invocations, and tries to capt...
Understanding __get__ and __set__ and Python descriptors
...al methods:
__get__ (non-data descriptor method, for example on a method/function)
__set__ (data descriptor method, for example on a property instance)
__delete__ (data descriptor method)
These descriptor objects can be used as attributes on other object class definitions. (That is, they live in...