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Read connection string from web.config
...Add System.Configuration as a reference.
For some bizarre reason it's not included by default.
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postgresql - sql - count of `true` values
...vironments use the 0/1 representation for false/true, many use 0/non-zero, including -1. I agree it's a "hack," and casts are dicey enough when they aren't "hacks." Won't downvote but again, wouldn't endorse.
– Andrew Wolfe
May 26 at 21:47
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What algorithms compute directions from point A to point B on a map?
...peaking as someone who spent 18 months working at a mapping company, which included working on the routing algorithm... yes, Dijkstra's does work, with a couple of modifications:
Instead of doing Dijkstra's once from source to dest, you start at each end, and expand both sides until they meet in t...
Entity Framework DateTime and UTC
...ed with the attribute.
The constructor for the ApplicationDbContext class includes this code:
/// <summary> Constructor: Initializes a new ApplicationDbContext instance. </summary>
public ApplicationDbContext()
: base(MyApp.ConnectionString, throwIfV1Schema: false)
{
// Set...
Where do “pure virtual function call” crashes come from?
...mization turned off - a simple program could be easily optimized away):
#include <iostream>
using namespace std;
char pool[256];
struct Base
{
virtual void foo() = 0;
virtual ~Base(){};
};
struct Derived: public Base
{
virtual void foo() override { cout <<"Deri...
When to use nil, blank, empty? [duplicate]
...eSupport, at least above some version (not sure which) ... and you need to include blank? only, here is how to cherry-pick just this one bit: require 'active_support/core_ext/object/blank (source)
– driftcatcher
Oct 11 '16 at 4:44
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Core dump file analysis [duplicate]
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You just need a binary (with debugging symbols included) that is identical to the one that generated the core dump file. Then you can run gdb path/to/the/binary path/to/the/core/dump/file to debug it.
When it starts up, you can use bt (for backtrace) to get a stack trace...
Standard alternative to GCC's ##__VA_ARGS__ trick?
...d-compliant way to implement the second BAR() example in jwd's question:
#include <stdio.h>
#define BAR(...) printf(FIRST(__VA_ARGS__) "\n" REST(__VA_ARGS__))
/* expands to the first argument */
#define FIRST(...) FIRST_HELPER(__VA_ARGS__, throwaway)
#define FIRST_HELPER(first, ...) first
...
How can I make setInterval also work when a tab is inactive in Chrome?
...ides functions setTimeout, clearTimeout, setInterval, clearInterval.
Just include it before all your code.
more info here
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Fixing JavaScript Array functions in Internet Explorer (indexOf, forEach, etc.) [closed]
...hat mutate the list). It's also full of other random non-standard methods, including some questionable ones like the dodgy stripTags and the incomplete UTF-8 codec (which is also a bit unnecessary given the unescape(encodeURIComponent) trick).
For what it's worth, here's what I use (which I hereby ...