pre-increment Questions
6
Solved
I understand the differences between i++ and ++i, but I'm not quite sure why I'm getting the results below:
static void Main(string[] args)
{
int c = 42;
c = c++;
Console.WriteLine(c); //Output...
Millicentmillie asked 18/11, 2015 at 15:27
4
Solved
I have a header file and a .cpp file. I am trying to implement a prefix and postfix operator overload but I keep getting this error when setting up the overload.
fraction.h
#ifndef FRACTION_H
#d...
Calumet asked 26/10, 2015 at 5:12
7
Solved
I'm trying to get deeper with post and pre incrementors but am a bit stuck with the following expression :
public static void main(String[] args) {
int i = 0;
i = i+=(++i + (i+=2 + --i) - ++i);
...
Debose asked 14/10, 2015 at 8:48
7
Solved
Why is k not getting incremented whereas,i and j are getting incremented in the same expression.And i also want to know what is the output of the program.I am getting the output as
-2 3 1 0
...
Railing asked 27/10, 2012 at 10:56
3
Solved
I know this issue has been discussed several times , but I could not find a post which explains why a copy needs to be made in case of a post-increment operation.
Quoting from a stackoverflow repl...
Giuditta asked 19/6, 2015 at 15:31
5
Solved
I'm making a program in java that races a few cars against each other. Each car is a separate thread.
When cars complete the race, each one all calls this method. I've tested the method at varyin...
Fortdefrance asked 3/10, 2011 at 20:55
4
Solved
Because of JSLint, I almost always use i += 1 to increment a JavaScript for loop, but for quick and dirty scripts, I use i++ instead.
However, I see a lot of for loops in other people's code in whi...
Fallfish asked 27/4, 2015 at 1:24
3
Solved
When I compile and run the code below with either counter++ or ++counter substituted for x, the output is identical; in both cases, numbers 1 - 10:
for (int counter = 1; counter < 11; x)
{
std...
Install asked 8/2, 2015 at 10:10
3
I have the same function with the only difference that it will either increment or decrement. I would like to generalize from that.
template<typename O>
void f(int& i, O op){
op(i);
}
...
Rhigolene asked 17/12, 2014 at 21:16
3
Solved
I have never seen the usecase for pre-increment and post-increment in actual code. The only place i see them most often are puzzles.
My opinion is, it introduces more confusion rather than being us...
Nevertheless asked 25/3, 2010 at 5:18
5
Solved
Here is a very simple C program:
int main()
{
int i = 0;
while(i++ < 10)
printf("%d\n", i);
return 0;
}
The result is:
1
2
3
4
5
6
7
8
9
10
Why 0 is not the first number to print?
And...
Knockknee asked 27/8, 2014 at 23:49
3
I have a question about these two C statements:
x = y++;
t = *ptr++;
With statement 1, the initial value of y is copied into x then y is incremented.
With statement 2, We look into the value ...
Marybellemarybeth asked 26/5, 2012 at 6:38
5
Solved
Why is "while (i++ < n) {}" significantly slower than "while (++i < n) {}"
Apparently on my Windows 8 laptop with HotSpot JDK 1.7.0_45 (with all compiler/VM options set to default), the below loop
final int n = Integer.MAX_VALUE;
int i = 0;
while (++i < n) {
}
is at...
Capitalist asked 15/8, 2014 at 7:24
1
Solved
int i=1,j;
j= ++i + ++i;
printf("%d",j);
The output of this program is 6 in C.But when I use the same logic for C#,
the output is 5 .
I want to know the reason why the same logic behaves differ...
Vaudeville asked 14/7, 2014 at 11:14
2
Solved
I -believe- that what I'm trying to do is probably valid because it is separated in both instances by a comma (not a typical assignment), but I have no idea for sure and search isn't bringing up an...
Tyrelltyrian asked 20/6, 2014 at 11:48
2
Solved
I've just encountered a 'feature' in Javascript regarding pre-increments. In all other languages I've used, it goes like I thought it would. E.g. in C++:
#include <iostream>
int main()
{
int ...
Kiloton asked 29/5, 2014 at 10:0
3
Solved
#include <stdio.h>
int main()
{
int a = 10;
if (a == a--)
printf("TRUE 1\t");
a = 10;
if (a == --a)
printf("TRUE 2\t");
}
Why is the second if statement true?
Output is:
...
Monostome asked 25/1, 2014 at 12:19
4
I have some C code:
main()
{
int a=1;
void xyz(int,int);
xyz(++a,a++); //which Unary Operator is executed first, ++a or a++?
printf("%d",a);
}
void xyz(int x,int y)
{
printf("\n%d %d"...
Selfrenunciation asked 7/6, 2010 at 13:4
1
Solved
I am trying to learn dynamic programming by solving some questions online. One question that i came across requires the to process the following input
4
10
3 4
4 5
6 7
5 7
The first points at n...
Florrie asked 25/8, 2013 at 6:47
2
Solved
I'm running the following programs in Visual C++ and Java:
Visual C++
void main()
{
int i = 1, j;
j = i++ + i++ + ++i;
printf("%d\n",j);
}
Output:
6
Java:
public class Increment {
...
Middlebreaker asked 7/7, 2013 at 18:6
3
Solved
This is my code:
$a = 5;
$b = &$a;
echo ++$a.$b++;
Shouldn't it print 66?
Why does it print 76?
Ical asked 19/6, 2013 at 9:56
5
Solved
I was expecting that in my following code:
#include<stdio.h>
int main(){
int i = 10;
int j = 10;
j = ++(i | i);
printf("%d %d\n", j, i);
j = ++(i & i);
printf("%d %d\n", j, i)...
Westerfield asked 13/2, 2013 at 18:13
3
In the PHP manual, operator precedence section, there is this example:
// mixing ++ and + produces undefined behavior
$a = 1;
echo ++$a + $a++; // may print 4 or 5
I understand the behavio...
Ideograph asked 2/1, 2013 at 7:21
3
Solved
For example, std::vector<int>::iterator it = --(myVec.end());. This works in GCC 4.4 but I have heard a rumor that it's not portable.
Houghton asked 30/11, 2012 at 18:53
4
Solved
I came across the following issue:
private void doStuff(int i) {
if(i>10) {
return;
}
doStuff(i++);
}
public void publicMethod() {
doStuff(i);
}
I would expect this to run doStuff 10 t...
Fulsome asked 12/10, 2012 at 13:24
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