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Return Array from C++

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Join Date: Mar 2007

Posts: 1

Reputation: egemen is an unknown quantity at this point

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egemen

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Newbie Poster

Re: Return Array from C++

#11

Mar 5th, 2007

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
#include <iostream>
#include <cstring>
#include <string>
 
using namespace std;
 
string plainfirst;
string key;
 
char*  perkey(char astr[]){ // permutate key
// cout<<"deneme "<<astr;
char* ptr;
 for(int i = 0; i<strlen(astr); i++){
   *(ptr + i) = astr[i];
   *(ptr + i) = '\0';
}
 
return ptr;
}
 
void printArray(char* array)
{
 
    for (int i = 0; i <10; i++){
        cout << *(array+i) << " ";
    }
    cout << endl;
    cout << endl;
}
 
int main (){
 
char str[10];
 
cout<<"key: ";
cin.getline(str,10,'$');
 
char* e = perkey(str);
 
 
 
printArray(e);
 
return 0;
}
#include <iostream>
#include <cstring>
#include <string>

using namespace std;

string plainfirst;
string key;

char*  perkey(char astr[]){ // permutate key
// cout<<"deneme "<<astr;
char* ptr;
 for(int i = 0; i<strlen(astr); i++){
   *(ptr + i) = astr[i];
   *(ptr + i) = '\0';
}

return ptr;
}

void printArray(char* array)
{

    for (int i = 0; i <10; i++){
        cout << *(array+i) << " ";
    }
    cout << endl;
    cout << endl;
}

int main (){

char str[10];

cout<<"key: ";
cin.getline(str,10,'$');

char* e = perkey(str);



printArray(e);

return 0;
}

i couldn't returned array is writen, how can i solve this problem.

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Join Date: May 2006

Posts: 3,114

Reputation: WaltP has much to be proud of

Solved Threads: 281

WaltP

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Posting Sensei

Re: Return Array from C++

#12

Mar 5th, 2007

Why are you hijacking a 3 year old thread? Can't you start a new thread with your new problem?

Last edited by WaltP; Mar 5th, 2007 at 3:56 pm.

The 3 Laws of the Procrastination Society:
1) Never do today that which can be put off until tomorrow
2) Tomorrow never comes

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Join Date: Jun 2007

Posts: 2

Reputation: alleycat429 is an unknown quantity at this point

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alleycat429 alleycat429 is offline

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Newbie Poster

Re: Return Array from C++

#13

Jun 10th, 2007

•

Originally Posted by WaltP

Why are you hijacking a 3 year old thread? Can't you start a new thread with your new problem?

Gosh! when did Jack Nichalson change his name and become a C
programmer?!!

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Join Date: Aug 2005

Posts: 15,413

Reputation: Ancient Dragon has a reputation beyond repute

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Ancient Dragon Ancient Dragon is offline

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Still Learning

Re: Return Array from C++

#14

Jun 10th, 2007

function perkey() is using an unitilized pointer ptr Is the intent of that function to copy the contents of one string into another and return the pointer to the new string? Like strcpy() ? If so, then you need to call malloc() first to allocate memory for the new string.

[b]printArray[b] -- why are you using a loop to print each individual character when cout will print the entire string in one shot ?

And yes, you should have just started a new thread to ask your question.

[edit]Ok , ok so I failed to look at the datestamp of egemen's post -- three months old

[/edit]

Last edited by Ancient Dragon; Jun 10th, 2007 at 9:16 am.

Don't PM me with questions -- you might get a nasty PM in response. If you have a question then post it in one of the forums.

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Join Date: Aug 2005

Posts: 15,413

Reputation: Ancient Dragon has a reputation beyond repute

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Ancient Dragon Ancient Dragon is offline

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Still Learning

Re: Return Array from C++

#15

Jun 10th, 2007

•

Originally Posted by alleycat429

Gosh! when did Jack Nichalson change his name and become a C
programmer?!!

And what makes you think Nichalson doesn't know how to program in C ?

Don't PM me with questions -- you might get a nasty PM in response. If you have a question then post it in one of the forums.

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Join Date: Dec 2005

Posts: 5,850

Reputation: Salem has a reputation beyond repute

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Salem

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Void main'ers are DOOMed

Re: Return Array from C++

#16

Jun 10th, 2007

> Ok , ok so I failed to look at the datestamp of egemen's post -- three months old
Yeah, a 3 month bump, which in itself began as a bump of a 3 YEAR old thread.

I bet Jack knows how to spell his own name, regardless.

#include <topic.h>
Error - topic not found - entering thread wibble mode.

Can we close this now?