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Change values while iterating
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No, the abbreviation you want is not possible.
The reason for this is that range copies the values from the slice you're iterating over.
The specification about range says:
Range expression 1st value 2nd value (if 2nd variable is present)
array ...
Variable number of arguments in C++?
... va_list ap;
va_start(ap, n_args);
int max = va_arg(ap, int);
for(int i = 2; i <= n_args; i++) {
int a = va_arg(ap, int);
if(a > max) max = a;
}
va_end(ap);
return max;
}
If you ask me, this is a mess. It looks bad, it's unsafe, and it's full of techn...
How can I find out a file's MIME type (Content-Type)?
Is there a way to find out the MIME type (or is it called "Content-Type"?) of a file in a Linux bash script?
5 Answers
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Getting “bytes.Buffer does not implement io.Writer” error message
...me Go object implement io.Writer, but writes to a string instead of a file or file-like object. I thought bytes.Buffer would work since it implements Write(p []byte) . However when I try this:
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How to check if Receiver is registered in Android?
... chance that the receiver's onReceive(Context, Intent) method is called
more than once, since it is registered with multiple IntentFilters, creating the potential for an IllegalArgumentException being thrown from Context#unregisterReceiver(BroadcastReceiver).
In my case, I can store a private...
How to define optional methods in Swift protocol?
Is it possible in Swift? If not then is there a workaround to do it?
19 Answers
19
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How do I know the script file name in a Bash script?
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me=`basename "$0"`
For reading through a symlink1, which is usually not what you want (you usually don't want to confuse the user this way), try:
me="$(basename "$(test -L "$0" && readlink "$0" || echo "$0")")"
IMO, that'll produce co...
Can I pass parameters by reference in Java?
I'd like semantics similar to C# 's ref keyword.
7 Answers
7
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“VT-x is not available” when i start my Virtual machine [closed]
...have created a virtual machine using the VMWare software and getting an error while starting the Virtual Machine. It says "VT-x is not available:
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Phone: numeric keyboard for text input
Is there a way to force the number keyboard to come up on the phone for an <input type="text"> ? I just realized that <input type="number"> in HTML5 is for “floating-point numbers”, so it isn’t suitable for credit card numbers, ZIP codes, etc.
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