fall-through Questions
5
Solved
I started learning Dart today, and I've come across something that my google skills are having trouble finding.
How do I have a fall-through in a non-empty case?
My use case is this: I'm writing ...
Northwest asked 23/9, 2012 at 6:13
3
Solved
Code sample:
int main(int argc, char **argv)
{
switch(argc)
{
case 0:
argc = 5;
__attribute__((fallthrough));
case 1:
break;
}
}
Using gcc 6.3.0, with -std=c11 only, this code gives a w...
Dermoid asked 27/7, 2017 at 11:8
7
Solved
How would you use a switch case when you need to test for a or b in the same case?
switch (pageid) {
case "listing-page":
case "home-page":
alert("hello");
break;
...
Parallax asked 28/6, 2011 at 21:57
4
Solved
I’m new to Rust, but as a fan of Haskell, I greatly appreciate the way match works in Rust. Now I’m faced with the rare case where I do need fall-through – in the sense that I would like all matchi...
Trinitroglycerin asked 28/2, 2017 at 13:5
3
Solved
Here the famous "fizz buzz" program in Go using switch/case and if/else conditionals. The problem is that using switch/case is generating unexpected output while if/else (with same conditions) work...
Herby asked 11/9, 2013 at 13:47
1
case "$action" in
a|b)
echo for a or b
;;&
b|c)
echo for c or b
;;&
*)
echo for everything ELSE
;;&
esac
So, as you can see, I'm using ;;& instead of ;; so that if action=b it ...
Maryammaryann asked 10/12, 2019 at 0:45
2
Solved
What happens when you reach the end of a Go case, does it fall through to the next, or assume that most applications don't want to fall through?
Redfield asked 26/11, 2016 at 18:49
2
We know that a Duff's device makes use of interlacing the structures of a fallthrough switch and a loop like:
send(to, from, count)
register short *to, *from;
register count;
{
register n = (coun...
Alcoholometer asked 25/1, 2016 at 15:34
0
The match in Rust only executes one arm. I found this code snippet from Murmurhash 3:
switch(len & 15)
{
case 15: k2 ^= ((uint64_t)tail[14]) << 48;
case 14: k2 ^= ((uint64_t)tail[13]) ...
Ean asked 28/6, 2019 at 6:35
2
Solved
I was testing C++17 features on GCC compiler version 7.1.0.
This is related to the fallthrough attribute and the following example (live example) is adapted from online CPP reference here
#includ...
Ehrenburg asked 23/8, 2018 at 10:21
1
Solved
currently in c#7 (version 15.3.4) following code is valid to compile but both variables are legitimately unusable.
switch(fruit)
{
case Apple apple:
case Orange orange:
// impossible to use app...
Fatshan asked 16/9, 2017 at 14:33
3
Solved
I have the following code:
package main
import (
"fmt"
)
func main() {
switch {
case 1 == 1:
fmt.Println("1 == 1")
fallthrough
case 2 == 1:
fmt.Println("2 == 1")
}
}
Which prints both ...
Implode asked 23/7, 2017 at 18:42
1
Solved
In the following piece of code, I use the standard [[fallthrough]] attribute from C++1z to document that a fallthrough is desired:
#include <iostream>
int main() {
switch (0) {
case 0:
s...
Pathe asked 11/7, 2017 at 6:16
1
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