C++ :: Need A Function To Return A String

Aug 13, 2014

I need a function to return a string..i need to pass input as "a,b,c,a,c,d,e" function should return out put as "a,b,c,d,e".

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C++ :: Creating A Function To Return A String

Aug 13, 2014

I need a function to return a string

I need to pass input as "a,b,c,a,c,d,e"

function should return out put as

"a,b,c,d,e"

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C :: Return A String To Then Call It On Main Function?

May 26, 2013

I'm trying to return a string to then call it on main function.

Code:
const char* coiso(int chave){
char str [50];
sprintf(str,"%d",chave);
char txt[50] = ".txt";
strcat(str,txt);
return str;
}
int main () {
const char* info = coiso(8);
printf("%s",info);
}

If I do a printf("%s",str) in coiso function it works but the following code doesn't work.

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C++ :: Use Recursion Function That Return If String Has Same Letters

Aug 12, 2013

I've to use recursion function that return if the string has a same letters:

for example: - fff = true
- fFf = false

I did this but the return answer is always: NOT!

bool iSameLetters(char str[SIZE]) {
if(str[0]='')
return true;
else {
if((str[0] && iSameLetters(str+1) == str[0]))
return iSameLetters(str+1);
return false;
}
}

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C/C++ :: Why To Use Return Type For String Function As Char

Oct 6, 2012

If we are using strcpy() for copying the string. As we are passing pointers to it It will copy the string & no need to return the string .This function will finely work with return type as void then why Ritchie has used it as char* strcpy()?

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C++ :: Function To Return String - File Size

Feb 24, 2012

Where i can get ready function, which return string, which describe size of file?

For example
4 = 4 b
1045 = 1,01 Kb
and etc.

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C :: Compute Permutations Of Any String Entered - Function Will Not Return A Value

Jun 11, 2013

This is my program, for now it is intended to compute permutations of any string entered, but the function ox will not return the final x value. ox is the function that actually computes the permutations so the return of the x value is critical.

Code:
#include<stdio.h>
#include<string.h>
int ox(int x);
int main() {
int x;
char input[10];

[Code] .....

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C :: Will Return Root Statement At End Ever Return Value Other Than Value Passed To Function?

Mar 29, 2013

I'm writing some functions pertaining to binary trees. I've used recursion once before while learning quicksort but am still quite new and unfamiliar with it. And this is my first time touching a binary tree. So my question: In my addnode function, will the return root statement at the end ever return a value other than the value passed to the function?

Code:

#include <stdlib.h>
struct tnode
{
int data;
struct tnode * left;
struct tnode * right;
}

[code]....

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C++ :: Convert And Return C Format String To String?

Jun 8, 2014

heres the function:

string ToString ( const char * format, ... )
{
char buffer[256];

[Code]....

these function do the same of the sprintf() function. but instead we use a variable for add the result, i want to return the result. when i use it:

string f;
f=ToString("hello world");
gives me several errors:
"error: crosses initialization of 'std::string f'"
"error: jump to case label [-fpermissive]"

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C++ :: Pass 2 Arrays Into Void Function And Return Values To One Function?

Feb 12, 2014

I'm trying to pass 2 arrays into a void funtion, and return values to one function.

this is the the program I'm working with, after I'm done I have to split it into 3 files, a header, a main, and a separate cpp file for the functions to live in.

#include <iostream>
using namespace std;
void processArrary(int numberCount[], int Numbers[], int intnumberSize, int numberCountSize);
int main() {
int Scores[26] = {76, 89, 150, 135, 200, 76, 12, 100, 150, 28, 178, 189, 167, 200, 175, 150, 87, 99, 129, 149, 176, 200, 87, 35, 157, 189};
int numberCount[8] = { 0 };

[code]...

The goal of this program is to separate and count the groups of numbers then output the amount of numbers in each group. Near as I can tell, everthing should work, but I'm getting all zeros to be displayed in each group.

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C :: Main Function Does Not Return Any Values When Calling Other Function?

Jun 9, 2013

The function is supposed to return value from the file in my main, but I am getting empty value. I am trying to get better with pointer. Right now just teaching myself.

right now the only way for this code to show value is when in put the putchar(*ps) inside my readfile function. I would like to readfile to return value and print in the main function.

Code:

#include <stdio.h>
char *readfile(char filename[]);
int main(int argc, char *argv[] ) {

[Code].....

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C :: How To Return As A Pointer To A String

Aug 1, 2014

How to return as a pointer to a string?

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C :: Return File Contents As String?

Oct 1, 2014

I am trying to code a function which will read a file on system and return its content back as string. Code is below.

Code:
char * readtxt(){
FILE * fptr;
char c;
static char txt[30];

[Code]....

I suppose txt variable is pointer. But I need to return the file content as string so the function structure should look like

Code:
returnType function(){
return "File Contents as String";
}

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C++ :: Adding String But It Return Some Integer Value

Jun 10, 2013

string str = "sfsdfsd"

and i want to add like str[3]+str[4]

but it return some integer value

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C/C++ :: Return File Contents As String

Oct 1, 2014

I am trying to code a function which will read a file on system and return its content back as string. Code is below.

char * readtxt(){
    FILE * fptr;
    char  c;
    static char txt[30];
    int len=0;  
    fptr = fopen("C:UsersTestDesktopDev est.txt", "r");  

[Code] ....

I suppose txt variable is pointer. But I need to return the file content as string so the function structure should look like

returnType function(){
return "File Contents as String";
}

How can I achieve this ?

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Visual C++ :: Return String Length

Jun 7, 2013

PHP Code:

int processString(xxx)
{
   //do something
   return non-null terminated string length


To make the function work better we change its internals

PHP Code:

int processString(xxx)
{
   //do something
   return null terminated string length


This phenomenon can be observed by use of mutibyte to wide char conversions, string copy , concatenation functions of MS etc ....

Should I minus one in the return value of the second function to match both versions ?

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Visual C++ :: Return String From COM Method

Nov 28, 2013

I try to make dll and install it under "Component Services". I tried to make method that return string but when i test it i don't get any result :

Code:
STDMETHODIMP CSimpleChat::CellMe(BSTR name, BSTR** helloMessage) {
CString temp = _T("Hi ");
temp += name;
temp += ", welcome to the simple chat server!";
BSTR str = temp.AllocSysString();
*helloMessage = &str;
return S_OK;
}

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C++ :: Vector String Return Length Error

Jul 10, 2013

The error is unclear but suggests Its received a bad pointer from another heap. It references dbgheap.c line 1322 and assertion failure

I have two string vector functions the first is called from the main function, the second is called from the first.

Their purpose is to receive a string of text and numbers in a semi-specific format, which the main body of the code reads from a text file, and delaminates the data as to return the first variable in the string as the variable name and the second as the variable value. Along the way it filters out a lot of the unwanted whitespace and punctuation.

E.g "{ VariableNameA 123 }" would be returned as "VariableNameA" And "123"

The code works perfectly for most of the lines in the text file but fails on one particular line where the first variable is 25 characters long. Basically it works for anything 22 characters or less. There are never more than 4 elements in the vector and each element is never intended to be longer than 25 characters.

It fails trying to return from the second split function to the first split function.

Is there a limit to the size of each vector element? I'm struggling to find a way round this without having to rewrite the whole thing.

vector<string> split(const string &s, char delim) {
vector<string> elems;
split(s, delim, elems);
return elems;

[Code] ....

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C Sharp :: How Selected Value In Combobox Return String

May 29, 2013

string st=combobox1.selectedvale.tostring();

combo box return 2 item ,

1:text
2:value

The value of combo not type of(int),the value type (string)

How value ofcombobox return data with type(string)?

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C++ :: Search Dynamic Array For A String And Return Indices

Feb 20, 2015

I need it to search a dynamic array which I build from an input file. When it finds the user-input string, I want it to store the line number, and continue searching, and record all lines that contain the user-input string.

Here is a link to my complete main.cpp, header file, and implementation file. The function I am having trouble with is "Bagger::lineSearch"

[URL] ....

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C++ :: Find Index Of String Array - Get Wrong Return Value?

Apr 17, 2014

Here is my code to find the index of a string array whose string is equal to the query string. I have checked the program can return the correct index, but the cout result is totally wrong.

#include <iostream>
#include <string>
using namespace std;

[Code].....

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C++ :: Function Will Not Return Value

Jan 14, 2015

Why my function will not return this int. It does make it into the if(... prints "test 32" but will not return the given value(123456789).

#include <iostream>
using namespace std;
int lastZero(int x[]);
int main(){
int myArray[] = {1,1,1};
lastZero(myArray);

[Code] ...

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C++ :: Best Way To Return Values From A Function?

Jan 24, 2014

I wanted to return a string I can do

Code:

string parseFilename(string fileName){
return fileName.subtr(/*blah*/);
}

Can I also use pointers/references here though? When would you use a pointer and when just a return statement?

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C :: Function Return Code / Value?

Sep 27, 2014

I have a function that needs to return a "uint8_t" value. However before doing the processing I need to perform a test on the argument to check if it's between expected boundaries. Although this function works it gives (a logical) warning that not always a value is returned although expected. What is the normal way for functions like these where I normally should return e.g. -1 in case the test doesn't succeed and otherwise the uint8_t (t) value?

Code:
uint8_t myFunc(int a) {
if (a >= 0 && a <= 100) {
// Perform actions
uint8_t = ...
return t;
}
}

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C++ :: How To Return A Pointer From Function

May 1, 2013

I am trying to return a pointer from a method. Below is a sample of my code.

CSubnode * CTest::GetSubNode() {
return m_psubnode;//this is declared in CTest as CSunbnode * m_psubnode
}
//in another class
m_subnode = m_ptest->GetSubNode(); //m_subnode is declared as a pointer

Is this the correct why to return a pointer?

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C++ :: Return Matrix In Function

Jul 4, 2013

How we can return a 3x3 matrix in c++ function.

My code is:

double *computeA() {
double *A = new double[2][2];
// some operations on A and then return
return A;
}

The error that I have in this case is:

error C2440: 'initializing' : cannot convert from 'double (*)[2]' to 'double *'

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