My teacher has done a very poor job of teaching us anything this year. When he taught us for loops, he wrote one on the board, didn't explain any of it, then said now that you know for loops we can implement them in a code. but anyway, we need to write a code for converting a string to an int and all the examples i find on the internet use pointers but we aren't allowed to use those yet.
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Ok, so I'm writing this code and when I build it keeps saying cannot implicitely convert type int to string even though I declared my variables as string. Why is it giving me this error?
private static string Repair()
{
string result="";
string beep;
string spin;
Console.WriteLine("Does your computer beep on startup?:(y,n)");
[Code]...
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]"
I am using Visual Studio 2008. I just wonder if there are any library function in Windows SDK or MFC, or from third-parties, that can convert a UTF-8 string into Windows Unicode string(used in CString object).
Can MultiByteToWideChar or ATL String conversion macro like A2W to the conversion?
Having some trouble with basic stuff while learning C. My purpose was to flip the pointing order, so it would point to the string from the end to the start. didn't work so well using **str as well.
Code:
#include <stdio.h>
#include <conio.h>
char str_inve(char *ptr);
[Code] .....
everything seems to be right in this program except that the puts() function does not print anything.
Code:
/*c program to reverse a string using pointer*/
#include<stdio.h>
#include<conio.h>
#include<string.h>
}
[code]....
I have a little problem with one of my functions. The function purpose is to get a number (n) and create an array (size n) with pointers to strings (each string length is 20 chars) and i don't know why but during the debugging i get a <bad ptr> message and this message :
CXX0030: Error: expression cannot be evaluated
This is my function:
Code:
char** getlist(int n) {
int i=0;
char **arr;
arr=(char**)malloc(sizeof(char)*n);
if (arr==NULL)
[Code] ....
The snippet below (or similar) compiles and runs OK but I am using Visual Studio C++ compiler. Are the lines where .nameFirst and .nameLast assigned kosher in ANSI C?
Also I am concerned about the memory allocation for these string constants. Does the runtime system put them on the heap? It doesn't seem that they are really constants since they are not defined before runtime.
Code:
#include "stdlib.h"
typedef struct
{
unsigned id;
char* nameFirst;
char* nameLast;
} myList;
[Code]...
I am trying to alphabetize 3 different strings by comparing the first letter in each one. It will work for the first two names, but when I try to print out the third, I keep getting errors and I don't know why?
Code:
#include <stdio.h>
char personName();
int main() {
personName();
return 0;
[Code] ....
So I'm writing a function isPalindrome() that can accept a string as an argument, and copy from it only the alphabetic characters in the argument (original) string to another string named alpha_array which contains only the alphabetic characters. Then the function should be able to call the isPurePalindrome function to determine if alpha_array is an ordinary palindrome.
The problem is that when I call isPalindrome in main, the program crashes.
Here's the code I have for isPurePalindrome and isPalindrome:
Code:
/* 1 */
int isPurePalindrome( const char * sentence ) // Can accept strings, array and pointer arguments
{
// Declarations
[Code].....
I would like to convert a value into a string, and extract a value from a string. And then call these functions in the main.
template<class T>
string toString (T value) // convert a value into a string {
stringstream ss;
[Code[ .....
Are above functions correct? And how should I call in main?
int main() {
const int SIZE=10;
toString<int> intValue(SIZE); //seems not right
toString<double> doubleValue(SIZE); // seems not right
}
I've got this string: Code: char * string = "2+2"; I want to get an integer value = 4 from this. How would I go about doing this.
View 1 Replies View RelatedI want to convert string to double. I refered this strtod() - C Library Function Example
Code:
#include <stdio.h>
#include <string.h>
int main() {
const char string[] = "$$GPRMC,013732.000,A,3150.7238,N,11711.7278,E,0.00,0.00,220413,,,A*68";
char term;
const char delims[] = ",";
}
[code]....
Is there anyway to convert std::string to char*?
Like:
std::string x="hello world";
char* y=x;
I need to convert a string IP to an unsigned int (uint32), but however solutions I've found elsewhere have not worked (such as `atoi`).
When using `(uint32)"54.171.82.217 ";` : [URL] ....
When using `atoi("54.171.82.217");`: [URL] .....
How can I correctly convert the string version of the IP to the uint32 type?
I'm trying to get two numbers longer than long long int and add them together and multiply. I'm not sure how to convert the numbers to a string.
#ifndef BIG_INTEGER_H
#define BIG_INTEGER_H
#include "BigIntegerException.h"
class BigInteger {
private:
int biginteger[500];
int bigintegertwo[500];
[Code] .....
I have this code working:
char tmp_wku[3];
tmp_wku[0]=0x01;
tmp_wku[1]=0x9D;
tmp_wku[2]=0x62;
char tmp_com[11];
[Code] ....
This sends the buffer to a LIN modem. My question is: can this be done better. If I have a astring of hex numbers like "09 98 88 55 42 FF 00 00 FF BD 89". How could I send this without manually makng a char with hex numbers?
I am C++ newbie.
I want to ask how can i convert string to int and split it?
Like given string input is 00;
I want it to become 2 int which is 0 and 0...
How to convert string to currency type.
View 7 Replies View RelatedIn the below function, it muliplies "10.0 * val". Why does it use 10.0? If you remove the 10.0, the return value will still be a double.
#include <ctype.h>
/* atof: convert string s to double */
double atof(char s[])
{
[Code]....
I'm trying to convert int x and y arrays to string using a sample code found online.
string Square::int2string (int x[]) {
string returnstring = "";
for (int i=0; i < 4; i++) {
returnstring += itoa(x[i]);
return returnstring;
}
}
but hit with the following error.
Square.cpp:30:8: error: prototype for ‘std::string Square::int2string(int*)’ does not match any in class ‘Square’ Square.h:21:10: error: candidate is: std::string Square::int2string()
I declared the following in header file.
string int2string();
The error is due to variable type does not match. Is there a better way to convert int array to string?
What I'm trying to achieve is a string printed in the following manner:
Point[0] (x1,y1)
Point[1] (x2,y2) and so on.
I have to convert my netpay which is a float to a string So if i have 356.26 it should output the sum of three hundred fifty-six and 26/100 dollars my program function works for the sum of three hundred but after that it spits out garbage.
void convertNetPay(float netPay, char *netPayString)
{
int numHuns, numTens, numOnes;
char OnesTable[9][8]={"One","Two","Three","Four","Five","Six","Seven","Eight","Nine"};
[Code].....
I have an xml file with an IM node, i serialize it and get the property like:
public ImAddressDictionary ImAddresses { get; set; }
And then set the value like this:
contact.ImAddresses[ImAddressKey.ImAddress1] = sImAddresses; where the sImAddresses is a string.
I then get this error:
cannot convert from 'Microsoft.Exchange.WebServices.Data.ImAddressDictionary' to 'string'
I need to convert below value char *time="00.00.05".
I need to convert this to hh/mm/ss ....
there is a way to convert a file's name into a string.
Sample:
filename = testcode.txt
it will convert the file's name into a string:
char convert[100];
covert = name of file
Is this possible?
i've been writing some code for an assignment and it is mostly about pointers and string manipulations. It runs but crashes and I think it might be from over- valuating some strings maybe not. I have written in check points to make sure each function passes through but quits at findFirstPath loop, I had kept running the program through as i added more and more code. It had stopped when I near finished I believed it to just be because I hadn't finished the functions I called.
Code:
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#define MAXSTRING 10
#define TRUE 1
[Code]....
