大约有 42,000 项符合查询结果（耗时：0.0307秒） [XML]
What is the correct SQL type to store a .Net Timespan with values > 24:00:00?
... I'd probably convert the ticks into a time object like this: SELECT CAST(DATEADD(MILLISECOND, @Ticks/CAST(10000 AS BIGINT), '1900-01-01') AS TIME). The '1900-01-01' date doesn't matter, of course, it's just the third variable required by the DATEADD(...) function. Remember there are 100 nanos...
Deserialize JSON into C# dynamic object?
...string, object>
? new List<object>(arrayList.Cast<IDictionary<string, object>>().Select(x => new DynamicJsonObject(x)))
: new List<object>(arrayList.Cast<object>());
}
return result;
}
...
Convert char to int in C and C++
... code, you can write
char a = 'a';
int ia = (int)a;
/* note that the int cast is not necessary -- int ia = a would suffice */
to convert the character '0' -> 0, '1' -> 1, etc, you can write
char a = '4';
int ia = a - '0';
/* check here if ia is bounded by 0 and 9 */
Explanation:
a - '0'...
Printing hexadecimal characters in C
...
My solution using a cast to unsigned char is one instruction smaller in gcc4.6 for x86-64...
– lvella
Nov 9 '11 at 15:20
...
PHP json_encode encoding numbers as strings
...m might be there : I've often seen data come from database with everything casted to string (I've seen this with PDO and mssql ; but, if I remember correctly, this also happens for MySQL in PHP < 5.3, when the new mysqlnd driver was not yet existing) ;; to check what your data look like, you can ...
How to write iOS app purely in C
... it's fill color to white so that we clear the background.
// Note the cast to (CGFloat []). Otherwise, this would give a warning
// saying "invalid cast from type 'int' to 'CGFloat *', or
// 'extra elements in initializer'. Also note the assumption of RGBA.
// If this wasn't a dem...
Encrypt and decrypt a string in C#?
How can I encrypt and decrypt a string in C#?
29 Answers
29
...
What's the strangest corner case you've seen in C# or .NET? [closed]
... All the methods are overridden, except GetType() which can't be; so it is cast (boxed) to object (and hence to null) to call object.GetType()... which calls on null ;-p
Update: the plot thickens... Ayende Rahien threw down a similar challenge on his blog, but with a where T : class, new():
priv...
What is the proper way to check for null values?
... @BlackBear but the value returned is most probably a string, so the cast is valid
– Firo
Mar 20 '12 at 14:29
Th...
Type erasure techniques
...ght type is returned
T*& operator[](size_t i) { return reinterpret_cast<T*&>(Vector<void*>::operator[](i)); }
};
As you can see, we have a strongly typed container but Vector<Animal*>, Vector<Dog*>, Vector<Cat*>, ..., will share the same (C++ and binary) c...