大约有 46,000 项符合查询结果（耗时：0.0600秒） [XML]
Is JavaScript an untyped language?
...r
Strongly typed means there is a compiler, and it wants you an explicit cast from string to integer.
(int) "12345" * 1 === 12345
In either case, some compiler's features can implicitly alter the instruction during compile-time to do conversions for you, if it can determine that is the right th...
Actionbar notification count icon (badge) like Google has
...tifCount(...) is useless. Just call setText(...) on the badge. And you can cast getActionView() to Button directly.
– caw
Mar 1 '14 at 15:30
4
...
Can I use view pager with views (not with fragments)
...
you dont need to cast to ViewPager at all as you are dealing with the ViewGroup interface
– Dori
Sep 1 '15 at 17:02
...
What does it mean to “program to an interface”?
...ecause they have that method, while you can't call other methods without a cast. However, each objects individual BeAnnoying() method will be called.
– D. Ben Knoble
May 26 '15 at 1:16
...
What is the fastest integer division supporting division by zero no matter what the result is?
...
Awesome. Can be made constexpr and avoid needless type casts like this: template<typename T, typename U> constexpr auto fdiv( T t, U u ) -> decltype(t/(u+!u)) { return t/(u+!u); } And if you want 255, (lhs)/(rhs+!rhs) & -!rhs
– Yakk - Adam Nevr...
Is the pImpl idiom really used in practice?
...about the implementation or just break the encapsulation by using terrible casting tricks. PIMPL solves/mitigates that.
Compilation time
Compilation time is decreased, since only the source (implementation) file of X needs to be rebuilt when you add/remove fields and/or methods to the XImpl class...
What's the meaning of interface{}?
...mment by @NickCraig-Wood. interface{} can point to anything and you need a cast/type assertion to use it.
package main
import (
. "fmt"
"strconv"
)
var c = cat("Fish")
var d = dog("Bone")
func main() {
var i interface{} = c
switch i.(type) {
case cat:
c.Eat() // Fish...
Why exactly is eval evil?
...nic or other)
pointers
restartable exceptions
self-modifying code
...and a cast of thousands.
If you find yourself having to use any of these powerful, potentially dangerous tools ask yourself three times "why?" in a chain. For example:
"Why do I have to use eval?"
"Because of foo." "Why ...
Using smart pointers for class members
...t a client from moving (unless the client is a mad scientist keen on const_casts), I personally wouldn't do it. It exposes an implementation detail, i.e. the fact that ownership is unique and realized through a unique_ptr. I see things this way: if you want/need to pass/return ownership, pass/return...
How do I grant myself admin access to a local SQL Server instance?
...rc = sp_addsrvrolemember '$(sqllogin)', 'sysadmin'; print 'RETURN_CODE : '+CAST(@rc as char)"`) do if .%%i == .RETURN_CODE set sqlresult=%%j
rem
rem stop the SQL service
rem
@echo Stop the '%sqlservice%' service ...
net stop %sqlservice%
if errorlevel 1 goto stoperror
...