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How to avoid “if” chains?
...t is the case and if foo is only called once I would err towards using the goto version to avoid defining two tightly coupled functions that would end up not being very reusable.
– hugomg
Jun 26 '14 at 18:04
...
VBA - how to conditionally skip a for loop iteration
...ately jump to the next loop iteration. I would suggest a judicious use of Goto as a workaround, especially if this is just a contrived example and your real code is more complicated:
For i = LBound(Schedule, 1) To UBound(Schedule, 1)
If (Schedule(i, 1) < ReferenceDate) Then
PrevCoup...
【内核源码】linux UDP实现 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...
inet->inet_saddr = inet->inet_rcv_saddr = 0;
err = -EADDRINUSE;
goto out_release_sock;
}
if (inet->inet_rcv_saddr)
sk->sk_userlocks |= SOCK_BINDADDR_LOCK;
if (snum)
sk->sk_userlocks |= SOCK_BINDPORT_LOCK;
inet->inet_sport = htons(inet->inet_num);
inet->inet_daddr = 0;
ine...
Try catch statements in C
...
You use goto in C for similar error handling situations.
That is the closest equivalent of exceptions you can get in C.
share
|
imp...
How to break out of nested loops?
... don't spoil the fun with a break. This is the last remaining valid use of goto ;)
If not this then you could use flags to break out of deep nested loops.
Another approach to breaking out of a nested loop is to factor out both loops into a separate function, and return from that function when yo...
How to request Administrator access inside a batch file
...rrorlevel%' NEQ '0' (
echo Requesting administrative privileges...
goto UACPrompt
) else ( goto gotAdmin )
:UACPrompt
echo Set UAC = CreateObject^("Shell.Application"^) > "%temp%\getadmin.vbs"
set params= %*
echo UAC.ShellExecute "cmd.exe", "/c ""%~s0"" %params:"=""%", "", "r...
Batch file include external file for variables
...rash if you press Enter too fast.
set /p SRU=Skip Save? (y):
if %SRU%==y goto read
set input=1
set input2=2
set /p input=INPUT:
set /p input2=INPUT2:
Now, we need to write the variables to a file.
(echo %input%)> settings.cdb
(echo %input2%)>> settings.cdb
pause
I use .cdb as a sho...
How to break out of a loop from inside a switch?
...ValidState() {
return msg->state != DONE;
}
Advantages
No flag. No goto. No exception. Easy to change. Easy to read. Easy to fix. Additionally the code:
Isolates the knowledge of the loop's workload from the loop itself.
Allows someone maintaining the code to easily extend the functionalit...
Do while loop in SQL Server 2008
...
If you are not very offended by the GOTO keyword, it can be used to simulate a DO / WHILE in T-SQL. Consider the following rather nonsensical example written in pseudocode:
SET I=1
DO
PRINT I
SET I=I+1
WHILE I<=10
Here is the equivalent T-SQL code using...
How do I grant myself admin access to a local SQL Server instance?
...service%`) do if .%%i == .STATE set srvstate=%%j
if .%srvstate% == .0 goto existerror
rem
rem elevate if <domain/user> was defaulted
rem
if NOT .%2 == . goto continue
echo new ActiveXObject("Shell.Application").ShellExecute("cmd.exe", "/D /Q /C pushd \""+WScript.A...