C++ :: Value Change After Call Reverse Function
Jul 4, 2013
Which value change after call reverse function.
#include<iostream>
using namespace std;
static void reverse (int len, char *buf) {
char tmp[24];
int i;
[Code] ....
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Feb 28, 2015
We are programming a function calculator and my instructor hinted that the add() function is almost exactly like the subtract() function and we would only have to write one function if we "called it in a special way." This got me thinking, can I turn a function's argument to negative during the call to make it subtract?
Example:
void addSub(int &num1, int &num2)
into this
void addSub(int &num1, int -(&num2))
Would this work when passing by reference?
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Apr 25, 2014
What is Function call Overhead and Function Call Stack?
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Nov 3, 2013
I have written a function that inserts and prints a binary function correctly.
For example a tree like this [URL] ..... would print like this
Code:
node: 10
node: 7
node: 6
node: 8
node: 9
[Code] ....
Here is my print function
Code:
void prt_tree(struct node *tree) {
if (tree == NULL) {
printf("Null Tree
");
return;
[Code] .....
Could I just make some adjustments to my function to reverse it? and if so, how?
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Aug 29, 2013
I am new to C and trying to reverse a string but the function is not getting called.. the console says :
Enter a stringabhi
bash: line 1: 229 Segmentation fault (core dumped) ./program
Code:
#include<stdio.h>
#include<math.h>
#include<string.h>
char* reverseString(char input[]);
void main()
[Code] ....
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Nov 17, 2014
I noticed that when using variadic functions, if I pass the va_arg() as parameter to a function, the parameters get passed in reverse. Is that expected?
For example, the following code outputs
Code:
1 2
2 1
Code:
#include <iostream>
#include <stdarg.h>
void foo_func(int v1, int v2)
{
std::cout << v1 << " " << v2 << std::endl;
[Code] .....
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Mar 15, 2014
Eg. User input : abcde
Program Output : edcba
I keep on getting weird ASCI symbol in return, I couldn't achieve what I need, and tried debugging for days,
Code: char ar[20];
int len,n=0;
printf("enter the string to be reversed :
");
[Code].....
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Jan 23, 2014
Here's my program: - Program which inputs a string from user, reverses it and displays it.
#include <iostream>
using namespace std;
void string_reverse (char [], const int);
int main() {
const int arraysize = 10;
char string[arraysize];
[Code] ....
In the string_reverse function, I have declared temp character type array but on line 38, the
compiler is throwing 3 errors: -
error C2057: expected constant expression
error C2466: cannot allocate an array of constant size 0
error C2133: 'temp' : unknown size
I have declared a constant integer arraysize in line 35. Now I have no clue why is this happening because I think as I have declared it as a constant integer variable, this should not happen.
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Feb 27, 2014
I understand that the strrchr function is supposed to search for a string from the reverse. Unfortunately, mine isn't doing that.
#include <stdio.h>
#include <conio.h>
int main() {
char userinput[100] = "null";
char searchchar;
char *s;
char try_Again;
[Code] ....
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Mar 9, 2015
I have code for conversion of longitude and latitude and I need to reverse the function so it will work in opposite direction:
Code:
float LongitudeDeg = argv[1]; // some longitude
float LatitudeDeg = argv[2]; // some latitude
uint32_t u,v,l,n;
l=15; // l range is 2-29
[Code] .....
On start of the code we know longitude,latitude and l. And the result is u and v. And I need function when I will know the u and v, possibly l too, to calculate longitude, latitude.
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Jul 6, 2014
error says "cannot convert 'int*' to 'int' in function main()
and also
type mismatch in parameter in function sort(int,int)
Heres the code:
#include<iostream.h>
#include<conio.h>
void main() {
void sort(int,int);
clrscr();
[Code] .....
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Mar 19, 2013
I searched the web for error: C3867... and the discussions where murky or obscure.
My code excerpt is:
#pragma once
#include <windows.h>
#include <stdlib.h>
#include <process.h>
void PutUpfrmIO(void *);
namespace WordParsor {
[Code] .....
I get the generic message:
error C3867: 'WordParsor::Form1::PutUpfrmIO': function call missing argument list; use '&WordParsor::Form1::PutUpfrmIO' to create a pointer to memberc:userskingc++wordparsorwordparsorForm1.h... and the suggestion fix generate another error.
One person suggested the gcroot<> object wrapper... but I do not know how to modify/declair the function or its argument type.
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Nov 29, 2014
Implement a recursive function named void printBack(DoublyLinkedNode<T>* node) for the class DoublyLinkedCircularList which will print out the elements in the list from back to front. The function is initially called with the first node in the list. You may not make use of the previous(prev) links
This is my solution where I got 2 out of a possible 3 marks:
template<class T>
void DoublyLinkedCircularList<T> :: printBack(DoublyLinkedNode<T>* node) {
if(node->next == NULL) //Correct- 1 mark
return 0;
else
printBack(node->next); //Correct - 1 mark
cout << current-> element << " ";
}
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Jan 9, 2015
I have decalred a password function which accepts an array as parameter but while compiling, it's showing an error wherever I have called it.
void password(char a[100])
{
if(::q==1) { cout<<"
Enter the master password : "; goto ENTER; }
[Code]....
Wherever I have called this function it's showing an error: "Call of nonfunction." One of the examples of the errors is below:
::q=1;
password(master_password);
//Both 'q' and 'master_password' being global variables, and master_password being array of size 25.
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Jan 12, 2015
I wrote a program which detects a pattern in an array then returns a valve (x) for each time it does. now i tried to call function patt in main so that i can print x but it doesn't let me do it.
#include <stdio.h>
int patt(const int SIZE, char str[], int i, int c);
int main(void) {
const int SIZE=21;
char str[SIZE]={'1', '0', '1', '1', '0', '0', '1', '0', '1', '0', '1', '0', '0', '0', '1', '0', '1', '1', '0', '1'};
int i, c=0;
[code].....
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Mar 5, 2013
what is the call by value in function??
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Feb 16, 2013
I am getting call of nonfunction in function main <> error and 's' is assigned a value that is never used in the function warning...
#include <iostream>
#include <cmath>
#include <iomanip>
using namespace std;
int main() {
float a,b,c,s,area;
[Code] ....
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Mar 5, 2013
This is the error I keep getting, but I'm not sure how to resolve it.
assignment7.cpp:11: error: no matching function for call to 'Time::display() '
Time.h:18: note: candidates are: void Time::display(int, int)
Code:
#include "Time.h"
int main() {
Time tm;
tm.set(12,53);
dt.display(); //Should display 7/4/1776
[Code] .....
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Feb 16, 2013
I want to write a function and be able to call it during execution (say during a while(1) loop). Is this possible without having to parse an input string to extract the function and parameters I need or is that the only way?
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Oct 15, 2013
i think my function call is not working and i dont know how to fix it. Basically i want it to output my getstudent function and once i get the information i want it to output with the displaystudent.
#include <iostream>
#include <string>
using namespace std;
void displayStudent(Student x) {
cout << x.first << ' ' << x.last << endl;
cout << x.id << endl;
[code]....
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Jun 1, 2013
no matching function for call to `getline(std::string&, char&)' Why is this error occuring?
My Aim is to copy each character or integer to an array
MY PROGRAM:-
#include <fstream>
#include <iostream>
#include<conio.h>
#include<string.h>
[Code].....
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Sep 6, 2013
The random method in here should return a random value inside given array.
The program constantly crashes when I send the array object as full.
It will only allow for you to choose the first 4 objects in the array, if you choose object number 8, for example, the program crashes.
So Im trying to send the pointer to the array instead. But now the compiler claims not to know of any such function.
static string getRandom(string* avalible[]){
cout << "Get random";
cout << "index: " << (*avalible)->length() << endl;
int index = random((*avalible)->length()-1);
cout << "returned" + index;
[Code] .....
I can remove the "10" from the string first[10] but it doesn't make a difference.What is wrong with this?
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Sep 1, 2013
How to call the function in different file. 1 main and 5 function.
I'am not sure to create the function to call each by one in different file.
#include <iostream>
#include <string>
using namespace std;
int main() {
double FA;
[Code] ....
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Jan 26, 2015
what is the meaning of identifier before function call in this example? i mean that in syntax context
// Create a stack-allocated handle scope.
HandleScope handle_scope(isolate);
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Sep 13, 2013
When I call the member function in the main function, two functions are working fine but the third one(print()) is not. The program stops after executing the read_ages function and nothing printed on the screen. This is really strange and I could not find any problem after spending hours and had to post it here.It is a very simple program but I cant find the bug. It is a multiple file program and I am using MinGW as a compiler.
//File 1
#include<vector>
#include<string>
class Name_pairs {
private:
std::vector<std::string>names;
std::vector<double> ages;
[Code] ...
//I haven't made the sort function yet since I am stuck with the print(). Seems //like the compiler is skipping the print() function.
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Nov 27, 2014
I've got These 3 files:
// OTI.h
extern void Unpack(void* Packet);
// PackUnpack.cpp
#include "OptiTrackInterface.h"
void Unpack(void* Packet) {
...
}
// OTI.cpp
#include "OptiTrackInterface.h"
Unpack((char*) &indata);
When i try to compile OTI.cpp, I got the error that Unpack is undeclared.
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