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Where is C not a subset of C++? [closed]
...zeof('a') is equal to sizeof(int).
In C++, sizeof('a') is equal to sizeof(char).
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What exactly does the .join() method do?
...d by .join() which I have read is the preferred method for concatenating strings.
9 Answers
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Why does Java switch on contiguous ints appear to run faster with added cases?
...witchTest10.java
public class SwitchTest10 {
public static void main(String[] args) {
int n = 0;
switcher(n);
}
public static void switcher(int n) {
switch(n) {
case 0: System.out.println(0);
break;
case 1: System.o...
How can we prepend strings with StringBuilder?
I know we can append strings using StringBuilder . Is there a way we can prepend strings (i.e. add strings in front of a string) using StringBuilder so we can keep the performance benefits that StringBuilder offers?
...
A gentle tutorial to Emacs/Swank/Paredit for Clojure
... ((candidates
(remove-if-not
(lambda (jar)
(string-match-p "clojure\\([0-9.-]+\\(SNAPSHOT|MASTER\\)?\\)?\\.jar$" jar))
jars)))
(if candidates
(car candidates)
(expand-file-name "~/.clojure/clojure.jar"))))
(defun find-clojure-contrib-jar (j...
What does the ??!??! operator do in C?
...essing, so there were some legit Fortran character sequences (in a literal string, IIRC) that were misinterpreted as C trigraphs, leading to some interesting bugs!
– Phil Perry
Apr 11 '14 at 18:25
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Is it ever advantageous to use 'goto' in a language that supports loops and functions? If so, why?
...about this one:
a[900]; b;c;d=1 ;e=1;f; g;h;O; main(k,
l)char* *l;{g= atoi(* ++l); for(k=
0;k*k< g;b=k ++>>1) ;for(h= 0;h*h<=
g;++h); --h;c=( (h+=g>h *(h+1)) -1)>>1;
while(d <=g){ ++O;for ...
LINQ equivalent of foreach for IEnumerable
...umerable<char> enumerable = new[] {'a', 'b', 'c'};
var sb = new StringBuilder();
enumerable
.ForEach(c => sb.Append("1"))
.ForEach(c => sb.Append("2"))
.ToList();
Assert.That(sb.ToString(), Is.EqualTo("121212"));
}
If you remove the ToList() in th...
MongoDB SELECT COUNT GROUP BY
...
I need some extra operation based on the result of aggregate function. Finally I've found some solution for aggregate function and the operation based on the result in MongoDB. I've a collection Request with field request, source, status...
Why are preprocessor macros evil and what are the alternatives?
...can't be debugged.
When you have a macro that translates to a number or a string, the source code will have the macro name, and many debuggers, you can't "see" what the macro translates to. So you don't actually know what is going on.
Replacement: Use enum or const T
For "function-like" macros,...