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Macro vs Function in C
...le with control-flow constructs:
#define swap(x, y) t = x; x = y; y = t;
if (x < y) swap(x, y); -->
if (x < y) t = x; x = y; y = t; --> if (x < y) { t = x; } x = y; y = t;
The usual strategy for fixing this is to put the statements inside a "do { ... } while (0)" loop.
If you hav...
Authorize Attribute with Multiple Roles
...
Now that's an idea worthy of Mac Gyver ;)
– Christian Sauer
Jun 12 '14 at 10:47
2
...
What's Alternative to Singleton
...h as Spring or Guice? (I believe Spring also is available for .NET as well now).
That way, the framework can hold a single copy of the configuration objects, and your beans (services, DAOs, whatever) don't have to worry about looking it up.
This is the approach I usually take!
...
Detecting when the 'back' button is pressed on a navbar
...lution any more. Worked at the time I first used this (it was iOS 10). But now I accidentally found it calmly stopped working (iOS 11). Had to switch to the "willMove(toParentViewController)" solution.
– Vitalii
Jan 24 '18 at 14:27
...
“Unknown class in Interface Builder file” error at runtime
...
Despite the "Unknown class MyClass in Interface Builder file." error printed at runtime, this issue has nothing to do with Interface Builder, but rather with the linker, which is not linking a class because no code uses it directly.
When th...
How to change the default collation of a table?
...
@JasomDotnet you should now use utf8mb4_unicode_ci stackoverflow.com/questions/766809/…
– baptx
Aug 7 '16 at 17:57
2
...
Flatten nested dictionaries, compressing keys
...ems = []
for k, v in d.items():
new_key = parent_key + sep + k if parent_key else k
if isinstance(v, collections.MutableMapping):
items.extend(flatten(v, new_key, sep=sep).items())
else:
items.append((new_key, v))
return dict(items)
>>&g...
Is it possible to get the non-enumerable inherited property names of an object?
...etOwnPropertyNames(curr)
props.forEach(function(prop){
if (allProps.indexOf(prop) === -1)
allProps.push(prop)
})
}while(curr = Object.getPrototypeOf(curr))
return allProps
}
I tested that on Safari 5.1 and got
> getAllProperties([1,2,3])
["0"...
Encoding as Base64 in Java
...read why you shouldn't use sun.* packages.
Update (2016-12-16)
You can now use java.util.Base64 with Java 8. First, import it as you normally do:
import java.util.Base64;
Then use the Base64 static methods as follows:
byte[] encodedBytes = Base64.getEncoder().encode("Test".getBytes());
Syst...
The name 'model' does not exist in current context in MVC3
... </system.webServer>
</configuration>
This worked for me. I now have intellisense and no compile errors on my views in a non-MVC project that I can then reference from multiple MVC websites.
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