Evaluation that bounds the resulting value to the corresponding variable in the function (frequently copying the value into a new memory region).
Questions tagged [call-by-value]
95 questions
0
votes
6 answers
Rearrange order of an ArrayList
I want to rearrange an ArrayList by iterating through it and copying each element to a specific place in a new list.
In this case I want to move an element to the end of the list. For example, if the list is ABCDE and j == B then the new list should…
ArtVandelay
- 97
- 3
- 11
0
votes
3 answers
C Code: Passing expression as an argument in recursion call
I am practicing some C questions came across a scenario where a recursive function calls itself with an expression as an argument.
Pow(double x, unsigned n){
.....
.....
return Pow(x*x,n/2);
}
My question is whether the arguments are passed…
Phanindra Palagummi
- 33
- 6
0
votes
1 answer
Why am I getting same value (0x7fff5fbff808) as output while passing vl or vl1? The address should be different
void ShowValue(int **value)
{
std::cout<<"Value 0 = "<<**value<<"\t"<<*value<<"\t"<
Abhishek Lal
- 19
0
votes
5 answers
How is passing a string literal to a function handled in C++?
Consider the following piece of code:
void consumeString(std::string str){
/* some code */
}
void passStringObject(){
std::string stringObject = "string literal";
consumeString(stringObject);
}
void passStringLiteral(){
…
Benjamin K
- 3
- 2
0
votes
2 answers
Call-By-Value vs Call-By-Reference revisited
let me first say. I know the title suspects that I'm asking a question which was answered here and around the internet many times. I did research indeed yet I just can't find a satisfying answer.
My question in the end comes down to this. Why is…
ben
- 5,671
- 4
- 27
- 55
0
votes
3 answers
How to do this program in C? Part 3.2-3.9
Are multiple conditions, as in multiple if else statements needed for the intersection rectangles to be printed correctly?
Step 3: Two rectangles intersect if they have an area in common Two rectangles do not overlap if they just touch （common edge,…
user2805620
- 125
- 1
- 1
- 13
0
votes
3 answers
Modifying object collections
I'm working in some Java code and I have a doubt. I have a loop that goes along a Collection to modify each one of its objects with a method. The thing is, when you pass an object to a method, what are you really passing? A copy of the reference?…
Hannibaal
- 97
- 1
- 7
-1
votes
3 answers
which part of the memory does the result of the expression of the return statements gets stored in?
the case is
int func(void){
int A = 10;
int B = 20;
return A+B
}
which is being called by the main function
int main(void){
int retVal = func();
return 0;
}
in the function func() two local variables will be…
aTechieSmile
- 139
- 1
- 1
- 11
-1
votes
2 answers
Swap elements of two structures
I have simplified my question to this small C program. Please note that I am learning C on my own. I a having real trouble with pointers!
#include
#include
typedef struct Elmt_ {
int *i;
struct Elmt_ *next;
} E;
void…
noobee
- 57
- 3
-1
votes
1 answer
Unable to pass 2-Dimensional array while using recursion in c++
I saw an answer in stackoverflow regarding how to pass a 2d-array in a function there are 3 or more methods given when I tried one of them it worked just fine. But when I'm trying to use that method in backtracking it is giving me an error.
I…
era s'q
- 537
- 1
- 7
- 27
-1
votes
1 answer
Two cases which should avoid calling copy constructor
I have learned about three cases about calling the copy constructor
1. A variable is being initialized from an object of the same class
2. A function is called with a value parameter of the class
3. A function is returning a value that is an object…
cp3
- 1
- 2
- 7
-1
votes
1 answer
Call by Reference or by Value?
I have just begun using C++, with a base in C. Having learned about Call by reference, I need to know,if in the following function I found online:
int insertSorted(int arr[], int n, int key, int capacity)
{
if (n >= capacity)
return n;
…
-1
votes
2 answers
Java call by value
I realize this is a commonly asked question, but here it is ..
I tried to write this to figure out how Java handles parameter passing and so on..
public class CallByValue {
int key;
public void changeValue(CallByValue c){
…
user3386479
- 51
- 2
- 8
-2
votes
1 answer
C# changing previously assigned values
I have a function that gets called on a two dimensional array "a" and alters the array. However, it also alters any array that was previously assigned to "a", before even calling the function. I'm not sure if I understand why!
char[][] copy;
copy =…
Nila
- 1
- 4
-2
votes
5 answers
anything like pointers in c#?
I'm new to c# (& coding in general) and i can't find anything pointer equivalent.
When i searched google i got something like safe/unsafe but that's not what i needed.
Like in c++ if you had a pointer and it pointed towards some value, the change in…
Wired Differently
- 27
- 4