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- sql - datetime Cast or Convert? - Stack Overflow
What to choose: Cast or Convert for datetimes (Microsoft SQL Server)? I have had a look at the MSDN Specifications At the first glance it seems there is no difference, except for the syntax: Synt
- c++ - Proper way of casting pointer types - Stack Overflow
I used to think that reinterpret_cast is OK for e g casting pointers to and from integer types (like e g DWORD_PTR), but to cast from a void* to a BYTE*, isn't static_cast OK? Are there any (subtle?) differences in this particular case, or are they just both valid pointer casts?
- What are the rules for casting pointers in C? - Stack Overflow
Casting pointers is usually invalid in C There are several reasons: Alignment It's possible that, due to alignment considerations, the destination pointer type is not able to represent the value of the source pointer type For example, if int * were inherently 4-byte aligned, casting char * to int * would lose the lower bits Aliasing
- c++ - When should static_cast, dynamic_cast, const_cast, and . . .
It is unnecessary when casting upwards (towards a base class), but when casting downwards it can be used as long as it doesn't cast through virtual inheritance It does not do checking, however, and it is undefined behavior to static_cast down a hierarchy to a type that isn't actually the type of the object const_cast
- Regular cast vs. static_cast vs. dynamic_cast - Stack Overflow
Static cast is also used to cast pointers to related types, for example casting void* to the appropriate type dynamic_cast Dynamic cast is used to convert pointers and references at run-time, generally for the purpose of casting a pointer or reference up or down an inheritance chain (inheritance hierarchy) dynamic_cast(expression)
- casting - Explanation of ClassCastException in Java - Stack Overflow
Java allows us to cast variables of one type to another as long as the casting happens between compatible data types For example you can cast a String as an Object and similarly an Object that contains String values can be cast to a String Example Let us assume we have an HashMap that holds a number of ArrayList objects If we write code
- c# - Direct casting vs as operator? - Stack Overflow
Custom implicit explicit casting: Usually a new object is created Value Type Implicit: Copy without losing information Value Type Explicit: Copy and information might be lost IS-A relationship: Change reference type, otherwise throws exception Same type: 'Casting is redundant' It feels like the object is going to be converted into
- casting - CAST to DECIMAL in MySQL - Stack Overflow
I am trying to cast to Decimal in MySQL like this: CAST((COUNT(*) * 1 5) AS DECIMAL(2)) I'm trying to convert the number of rows in a table (times 1 5) to a floating point number with two digits a
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