C++ :: Converting String To Char Array

C++ :: Converting Char Pointer To String

Mar 5, 2013

Here's the code I'm working on:

string* arrayPush(string *array, char **toks){

if(array[sizeofHistory -1].empty()){
//find the next available element
for(int i=0; i < sizeofHistory; i++ ){

[Code] ....

toks is an array of pointers to strings. I need to assign a toks to array[i].

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C++ :: Converting String To Char And Float

Nov 15, 2013

So I have to convert ("a499.9") into a char and a float while ignoring the a.

I have the string stored in a buffer and found how to get the char, 4. But I don't know how to get 99.9 as a float.

Here is my code so far.

#include <string>
using namespace std;
main() {
buffer = "a499.9";

[Code] ....

My output:

4
0

How to get that double out?

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C++ :: Converting A String Input To Char?

Feb 8, 2015

I am writing a program that asks the user for their gender. I know that atoi converts arrays into integers, but I need the input from the user in the form of F or M into a char, and return it to the main function to be displayed at the end of the program.

string Employee::getgender(char gen)
{
cout << "Please enter your Gender: " << endl;
//atoi function would go here, what for char?
getline(cin,gen)
return gen;
}

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C++ :: Typecasting Char Array To Int (Not Converting)

Jun 1, 2014

I am looking for the correct syntax to typecast a character array as an int. So I would be able to do something like this:

char ch[4];
//...Read characters from file into ch or something, etc...
int i = ( int ) &ch;

or

char ch[4];
//...Read characters from file into ch or something, etc...
int i;
strncpy ( ( char* ) &i, ch, 4 )

I want all the 4 characters ( or bytes ) of ch to be classed as an int. So we are taking the 4 bytes of the character array and placing them in 4 bytes of the integer? How would i go about this?

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C :: Converting Char Array To Int16 Type

Apr 18, 2013

I am trying to convert a char buffer[1024] with raw data to int 16 buffer2[1024] which is supposed to have hex data (0x01, 0x02 kind of format).

Code:
char temp_buffer[1024];
block_size = sizeof(temp_buffer);
num_blocks = sizeof(char);
Status = mount(0, &myfsObject);
if(Status != DAVEApp_SUCCESS)

[Code] .....

I am verifying the data of resultant buffer by creating a new file and writing data to it. The result which i got is:

Code: H uy H uy H uy H uy H uy H uy H uy H uy

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C/C++ :: Converting 1D String Array To 2D

Mar 27, 2015

I am trying to convert a 1d string array to a 2d but i couldnt do it. Heres my code so far,

for(i=0;str2d[i][j]='';i++)
{
for(j=0;str2d[i][j]=' ';j++)
{
str2d[i][j] = str1d[k];
k++;
}
}

str1d is a paragraph btw.I tried using NULL instead of '' but didnt work either.

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C++ :: Converting String To Integer Array

Apr 17, 2014

For Example, it the entered string is: 0324152397 I want it to get stored in an array like-[0] [3] ...[7]. Secondly the string entered may be of any length that is defined only at run time. So, I also need to calculate string length. How could I do that.

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C++ :: Converting String Into Double Array

May 18, 2014

I am having a lot of trouble extracting values from a string into a double array.

I have a string that looks something like this: "asdf 1.320 1 234.43 5.00000 3"

All I want to do is extract the doubles and store them in an array of doubles.

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C :: Converting A String Array Into Uppercase Letters From File

Apr 19, 2013

I am new to coding Here is the problem. Have a program prompt the user for a filename to open. Change every alphabetic character in the file to a capital letter. Numbers and special characters should not be changed. Print the output to the screen.

Here is my code so far but i am only returning the last line of text capitalized from the file. I am trying to get the program to display all of the three lines of text from the file capitalized. The program displays the file correctly before i try and convert everything toupper();

Code:

Code: #include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <ctype.h>
int main()
{
char line[81], filename[21];
int i;
FILE *inFile;

[Code]...

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C/C++ :: Converting String To Upper Case Via Dynamic Array?

May 21, 2014

I am trying to understand why i keep getting errors in my code. The errors are after the string is converted in my console window. I have to allocate and delete memory via dynamic array to do the problem.

#include<iostream>
#include<string>
#include<cctype>
using namespace std;
int main() {
string sentence;
int size;

[code]....

I just want to know why the extra characters are at the end of my conversion and how to make them stop.

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C++ :: Char Array To String - String Becomes Garbage

Apr 20, 2013

I'm trying to "tokenize" a string using std::string functions, but I stored the text in a char array. When I try to convert it to a string, the string has the first character right but the rest is garbage.

// Get value from ListBox.
char selectedValue[256];
memset(selectedValue, NULL, 256);
SendMessage(GetDlgItem(hWnd, IDC_LB_CURRENTSCRIPT), LB_GETTEXT, selectedIndex, (LPARAM)selectedValue);
// Convert to string.
string val(selectedValue);

[Code] ....

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C++ :: Char Array To String

Oct 19, 2013

I have some code:

char cHomeTeamFaceOffsPercentageWon[100];
memcpy(cHomeTeamFaceOffsPercentageWon,cSqlHomeTeamFaceOffsPercentageWon,100);

After this, for example, cHomeTeamFaceOffsPercentageWon is, "29%".

Then, I use

std::string szwPercentageWon = std::string(cHomeTeamFaceOffsPercentageWon);

szwPercentageWon is then, "2". Shouldn't this convert correctly, to "29%" as well.

Or is there something I'm missing? Maybe the termination character, or something.

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C :: Convert Char Array To String

Oct 15, 2013

Currently I have:

Code:
char my_array[4] = { '1', '2', '3', '4' };

how do I convert the above to a string of: "1234"

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C :: How To Convert A String Into 2D Char Array

Mar 8, 2013

.I have this string that I need to convert into a 2d char array like this:

String str= "A,E,B,I,M,Y#N,R,C,A,T,S";

I know how to use delimiter and split string and I know how to convert but only from string to char[].I need something like this:

Input: String str= "A,E,B,I,M,Y#N,R,C,A,T,S";

Output: [A] [E] [B] [I] [M] [Y][N] [R] [C] [A] [T] [S]

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C++ :: Assign Value Of Pow (2,800) To Char Array Or String

Jan 31, 2015

Assign value of pow(2,800) to char array or string ....

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C/C++ :: Testing String Against Array Of Char

Apr 3, 2013

I have a text file with state names, and state abbreviations, thusly:

ALASKA
AK
ARKANSAS
AR
..and so on.

I have to load the abbreviations ONLY from the file into an array of char[ - (already done and tested).

I have to get a 2 char abbreviation as a string,then test it against the state array to make sure it is a valid abbreviation. As it stands, my test is never finding an invalid abbreviation..

Here is where I get the input:

void getState() {
char state[10];
getString("Please enter the state as a 2 char abbreviation:",state,10);
printf("State Entered:%s", state);
validState(state);

[Code] ....

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C/C++ :: Convert String To A Char Array?

Apr 29, 2015

How do I convert a string of unknown length to a char array? I am reading strings from a file and checking if the string is a Palindrome or not. I think my palindrome function is correct, but do I do something like char [] array = string.length(); ??

#include <iostream>
#include <fstream>
#include <string>
#include <cctype>

[Code].....

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C/C++ :: Reversing A String / Char Array

Aug 12, 2013

I'm new in the C programming language, so I tried to create a program that reverses a string. This is my code:

/* Reverse string */
#include <stdio.h>
#include <string.h>
int main() {
char s[8]="Welcome";

[Code] ....

The output of the program is "@".

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C++ :: Converting Int To Char

Feb 20, 2014

Why is this

Code: fFile << (char) (i)p.x, (char) (i)p.y,(char) (i)p.z); not the same as this

Code: printf("%c%c%c", (i)p.x, (i)p.y, (i)p.z);

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C++ :: Converting Char To Hex

Nov 8, 2014

Having trouble converting char to hex.

according to here [URL] ....
ô in decimal is 147 and print ô using alt 147

and here [URL] ....
ô in dec is 244 but prints ⌠ using alt 244

put on console

char c = ô;
cout << (int)c << endl;

prints -109 and print m using alt -109

I am using alt to test char output. Why I'm getting a negative value? Which of the tables are correct? I have string of char that I want to print in hex. I get a hex string but the hex value don't correspond to any of the two tables on the websites because the console converts special char to negative values.

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C :: Change Elements Of Char String Array

Dec 16, 2013

why does this give me an error when i try to change the elements of the char string array.

code:

int main(void)
{
char *name = "aaa";
// setup the name
name[0] = 'Z';
name[1] = 'e';
name[2] = 'd';
name[3] = '';

return 0;
}

[code]....

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C++ :: Assign String To Char Array Of Struct

May 6, 2013

#include <iostream>
using namespace std;
struct box{

[Code].....

C++Dev.cpp:23: error: incompatible types in assignment of ‘const char [15]’ to ‘char [40]’

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C++ :: Using Isalpha With String Converted To Char Array

Jan 26, 2014

I am new to C++ and I have a two player word guessing game working well. However, I would like to be able to validate whether the word entered by player 1 is a completely alphabetic word using isalpha.

The error I am getting right now is as follows:

"error: array must be initialized with a brace-enclosed initializer
char str[100]=hiddenwordtwo;"

/* isalpha portion of code */
#include <stdio.h>
#include <ctype.h>
#include <iostream>
#include <cstdlib>
#include <ctime>
#include <string>
#include <cstring>
using namespace std;

int main () {
char hiddenwordtwo[100];

[Code] .....

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C# :: Store Each Char Of A String Into Byte-array?

Apr 25, 2014

I am trying to store each char of a string(string a ="1100") into a byteArray ( byte[] byteArray = new byte[4]. its not showing any error but its storing like below:

byteArray[0] = 49
byteArray[1] = 49
byteArray[2] = 48
byteArray[3] = 48

and what i want is

byteArray[0] = 1
byteArray[1] = 1
byteArray[2] = 0
byteArray[3] = 0

I don't know why but its replacing 1 with 49 and 0 with 48.what am I doing wrong or how to do this?

my code is as below

byte[] byteArray = new byte[4];)/>
int binArrayAdd = 0;
string a ="1100";
foreach (char Character in a)
{
byteArray [binArrayAdd] = Convert.ToByte(Character);
binArrayAdd++;
}

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C/C++ :: Passing String Variable To Char Array?

Mar 30, 2014

I have program where i have to check to see if file exist, if it does not then it needs to be created. SO I have a read file that works fine, if th efile exist it reads whats in it, if it does it says the file does not exist. Now Im trying to creata function that creates the file if it doesnt exist. so in my read function when the person enters the name of the file to be checked for..I pass that name to a variable called name..Hoping that I could then pass it into my create file function if it does not exist..and use that variable to pass the name they entered into the createfile array..called filename.. but I am having trouble because i get error when i try to pass from a string name to char array.. even when I change the varialbe name to char, or char [256] it will not work.. I try to fing a way to convert th string to a char using the strncopy function but still no dice..here the code i have for the createfile funciton

void CreateNew(ofstream & FileNew)//Create file
{
char filename[256];
string name;

[Code].....

How can i do this without having to ask the person to enter the file name twice..

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