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Foreign Key naming scheme
...
The standard convention in SQL Server is:
FK_ForeignKeyTable_PrimaryKeyTable
So, for example, the key between notes and tasks would be:
FK_note_task
And the key between tasks and users would be:
FK_task_user
This gives you an 'at a glance' view of which tables ...
Should private helper methods be static if they can be static
...odeSize extends java.lang.Object{
TestBytecodeSize();
Code:
0: aload_0
1: invokespecial #1; //Method java/lang/Object."<init>":()V
4: return
private void doSomething(int);
Code:
0: return
private static void doSomethingStatic(int);
Code:
0: return
public sta...
Returning multiple values from a C++ function
...vations about the pair/tuple technique. Mainly, there is often no natural order to the return values. How is the reader of the code to know whether result.first is the quotient or the remainder? And the implementer could change the order, which would break existing code. This is especially insid...
Split a collection into `n` parts with LINQ?
... each position, or in other words you don't get the chunks in the original order.
Almost every answer here either doesn't preserve order, or is about partitioning and not splitting, or is plainly wrong. Try this which is faster, preserves order but a lil' more verbose:
public static IEnumerable<...
Get Folder Size from Windows Command Line
...th
If you want it prettier:
switch((ls -r|measure -sum Length).Sum) {
{$_ -gt 1GB} {
'{0:0.0} GiB' -f ($_/1GB)
break
}
{$_ -gt 1MB} {
'{0:0.0} MiB' -f ($_/1MB)
break
}
{$_ -gt 1KB} {
'{0:0.0} KiB' -f ($_/1KB)
break
}
default { "$_ bytes" }
}
You can use this d...
How to easily map c++ enums to strings
...::strings in the map)
For extra syntactic sugar, here's how to write a map_init class. The goal is to allow
std::map<MyEnum, const char*> MyMap;
map_init(MyMap)
(eValue1, "A")
(eValue2, "B")
(eValue3, "C")
;
The function template <typename T> map_init(T&) returns a ma...
How to compile a static library in Linux?
...0);
fun2(10);
return 0;
}
lib.h the libs main header
#ifndef LIB_H_INCLUDED
#define LIB_H_INCLUDED
#include "lib1.h"
#include "lib2.h"
#endif
lib1.c first lib source
#include "lib1.h"
#include <stdio.h>
void fun1 ( int x )
{
printf("%i\n",x);
}
lib1.h the corresponding ...
How do I count a JavaScript object's attributes? [duplicate]
...
Use underscore library, very useful: _.keys(obj).length.
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What are free monads?
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@PauloScardine You do not need the above answer in order to productively program in Haskell, even with free monads. In fact, I wouldn't recommend attacking the free monad in this way to someone who didn't have a background in category theory. There are plenty of ways to talk ...
What is the difference between exit and return? [duplicate]
... return at the end of the function.
Last point, exit() come in two flavors _exit() and exit(). The difference between the forms is that exit() (and return from main) calls functions registered using atexit() or on_exit() before really terminating the process while _exit() (from #include <unistd....