control-structure Questions
4
Solved
Today I was looking through the php manual and stumbled upon a control structure declare.
The declare construct is used to set execution directives for a block
of code
This is what declare i...
Eclogue asked 8/7, 2015 at 5:19
2
Solved
As noted in another StackOverflow answer that I can't seem to find anymore, this pattern emerges frequently in practical Prolog code:
pred(X) :-
guard(X),
...
pred(X) :-
\+ guard(X),
...
and...
Larrabee asked 31/10, 2018 at 16:30
6
Solved
1st off I'm new to PHP. I have been using for loop,while loop,foreach loop in scripts. I wonder
which one is better for performance?
what's the criteria to select a loop?
which should be used wh...
Eudemon asked 11/10, 2012 at 19:58
2
In a SQL Server 2012 stored procedure, I have several nested structures. I want to break out of a single layer of them.
I thought the description of BREAK in the msdn https://msdn.microsoft.com/e...
Laflamme asked 15/12, 2015 at 19:9
1
Solved
A simple PHP if / else condition looks like this:
if(true) {
echo("Hello World!");
} else {
echo("Goodbye World!");
}
The "alternative syntax" looks like this:
if(true):
echo("Hello World!")...
Hedden asked 14/6, 2016 at 18:2
6
Solved
I have a question regarding if not statement in Python 2.7.
I have written some code and used if not statements. In one part of the code I wrote, I refer to a function which includes an if not st...
Contaminant asked 23/2, 2016 at 8:44
5
Solved
I am currently working on somebody's else code, with a statement like this
if(x.start()) do if(y.foo(x)) {
// Do things
}while(x.inc())
here x is custom class that holds information on y and a...
Emylee asked 29/7, 2015 at 10:32
1
Solved
Is it possible to use something like this in Postgres? This is the example from PL/SQL what I want to do:
PROCEDURE CREATE_PAYMENT(P_AMOUNT IN NUMBER,
P_INVOICE_LIST IN SIMPLEARRAYTYPE,
P_AMOUN...
Hernia asked 30/12, 2014 at 15:35
8
Solved
I've seen this a lot: $fp = fopen($filepath, "w") or die();
But I can't seem to find any real documentation on this "or" syntax. It's obvious enough what it does, but can I use it anywhere? And mus...
Discus asked 2/3, 2012 at 14:51
1
Solved
is it possible to create single if (without else) ?
It is very usable to can use one if
Enjoyment asked 12/10, 2013 at 20:9
10
Solved
I have a range of whole numbers that might or might not have some numbers missing. Is it possible to find the smallest missing number without using a loop structure? If there are no missing numbers...
Polynesia asked 15/8, 2013 at 21:55
3
I've been thinking to much...
In the area of switch case is break; required after die()
Example:
switch($i){
case 0:
die('Case without break;');
case 1:
die('Case with break;');
break;
}...
Muncey asked 9/8, 2013 at 19:1
2
Solved
catch in Ruby is meant to jump out of deeply nested code. In Java e.g. it is possible to achieve the same with Java's try-catch meant for handling exceptions, it is however considered poor solution...
Bentinck asked 20/11, 2012 at 23:29
6
Solved
I need to make a decision based on a rather large set of 8 co-dependent conditions.
| A | B | C | D | E | F | G | H
-----------+---+---+---+---+---+---+---+---
Decision01 | 0 | 1 | - | 1 | 0 | 1...
Fixing asked 3/6, 2013 at 15:58
13
Solved
When reviewing, I sometimes encounter this kind of loop:
i = begin
while ( i != end ) {
// ... do stuff
if ( i == end-1 (the one-but-last element) ) {
... do other stuff
}
increment i
}
Th...
Unsought asked 1/10, 2008 at 8:4
3
Solved
I am porting a Java application to Haskell. The main method of the Java application follows the pattern:
public static void main(String [] args)
{
if (args.length == 0)
{
System.out.println("In...
Neology asked 20/12, 2012 at 10:55
1
Solved
I always used and seen examples with just "break". What is the meaning of this:
<?php
while ($flavor = "chocolate") {
switch ($flavor) {
case "strawberry";
echo "Strawberry is stock!";...
Encomium asked 23/9, 2012 at 13:26
28
Sometimes when I am programming, I find that some particular control structure would be very useful to me, but is not directly available in my programming language. I think my most common desire is...
Misconstrue asked 27/11, 2010 at 20:27
5
Solved
I need to write these four ifs in Python. Notice what it does, is changing between four possible states in a loop: 1,0 -> 0,1 -> -1,0 -> 0,-1 and back to first.
if [dx, dy] == [1,0]:
dx,...
Hackler asked 1/2, 2012 at 23:8
3
Solved
Is it possible to break from a switch and then continue in a loop?
For example:
$numbers= array(1,2,3,4,5,6,7,8,9,0);
$letters = array('a', 'b', 'c', 'd', 'e', 'f', 'g');
foreach($letters as $le...
Predicate asked 20/11, 2011 at 22:55
4
Solved
Structured programming languages typically have a few control structures, like while, if, for, do, switch, break, and continue that are used to express high-level structures in source code.
Howeve...
Dollarbird asked 31/7, 2011 at 3:4
4
Solved
Is it possible to create a custom control structure with several code blocks, in the fashion of before { block1 } then { block2 } finally { block3 }? The question is about the sugar part only - I k...
Virgel asked 1/1, 2011 at 8:43
2
Solved
I'm really bothered by having to nest using blocks in C#. It's not elegant and it takes up a lot of space. In some cases it appears to be unavoidable because I need to declare variables of differen...
Jodhpur asked 10/8, 2010 at 13:43
5
Solved
I've been working on PHP for some time but today when I saw this it came as new to me:
if(preg_match('/foo.*bar/','foo is a bar')):
echo 'success ';
echo 'foo comes before bar';
endif;
To my ...
Serpens asked 7/5, 2010 at 13:31
18
Like Smalltalk or Lisp?
EDIT
Where control structures are like:
Java Python
if( condition ) { if cond:
doSomething doSomething
}
Or
Java Python
while( true ) { while True:
print(...
Urethra asked 28/4, 2010 at 18:56
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