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How do you get the index of the current iteration of a foreach loop?
...f your comments were overly aggressive and you could have presented your points with less anger and more education.
– Suncat2000
Aug 12 '16 at 19:22
7
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How do I show the value of a #define at compile-time?
...g should be treated as if it were quoted. If it did then:
#define ABC 123
int n = ABC;
would not compile.
Now consider:
#define ABC abc
#pragma message "The value of ABC is: " ABC
which is equivalent to
#pragma message "The value of ABC is: " abc
This causes a preprocessor warning because ...
How to populate/instantiate a C# array with a single value?
...populated with the default value of the type (e.g. false for bool, 0 for int, etc.).
25 Answers
...
How do you print out a stack trace to the console/log in Cocoa?
I'd like to log the call trace during certain points, like failed assertions, or uncaught exceptions.
6 Answers
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Make xargs execute the command once for each line of input
...: space.txt: No such file or directory
A better solution is to use tr to convert newlines to null (\0) characters, and then use the xargs -0 argument. Here's an example:
echo "file with space.txt" | tr '\n' '\0' | xargs -0 ls
file with space.txt
If you then need to limit the number of calls yo...
Cleanest way to write retry logic?
...
{
public static void Do(
Action action,
TimeSpan retryInterval,
int maxAttemptCount = 3)
{
Do<object>(() =>
{
action();
return null;
}, retryInterval, maxAttemptCount);
}
public static T Do<T>(
...
Integer division: How do you produce a double?
...nversions are well-defined. You don't have to guess, just check the JLS. int to double is a widening conversion. From §5.1.2:
Widening primitive conversions do not
lose information about the overall
magnitude of a numeric value.
[...]
Conversion of an int or a long value
to f...
Calculate the median of a billion numbers
...
Ah, my brain has just kicked into gear, I have a sensible suggestion now. Probably too late if this had been an interview, but never mind:
Machine 1 shall be called the "control machine", and for the sake of argument either it starts with all the data, ...
Java Replacing multiple different substring in a string at once (or in the most efficient way)
...sb, tokens.get(matcher.group(1)));
}
matcher.appendTail(sb);
System.out.println(sb.toString());
Once the regular expression is compiled, scanning the input string is generally very quick (although if your regular expression is complex or involves backtracking then you would still need to benchmar...
How do I migrate an SVN repository with history to a new Git repository?
...s a great cross-reference for the answer above. blokspeed.net/blog/2010/09/converting-from-subversion-to-git
– kgriffs
Mar 6 '12 at 16:13
4
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