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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Mar 26, 2014
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]...
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Jun 15, 2013
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?
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Feb 17, 2012
I have a problem. I need to print the string called "last" in uppercase format. can you check why my program prints nothing.
Here is the important section of the code.
if (infile.is_open()) // if file was able to open {
string line;
while (getline(infile, line)) {
string::size_type pos1 = line.find(' '); //pos1 is the position of the first space
[Code] ....
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Nov 18, 2012
error is giving.
int ages = 0;
ages = int.Parse(textBox2.Text);
if(textBox2.Text == "")
{
MessageBox.Show("Age Blank ......");
}
else if (ages >= 5 || ages <= 9)
{
MessageBox.Show("age must be 5 to 9 only");
}
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Apr 28, 2012
List<Byte> Pt_split(string plain) {
List<Byte> pb = new List<Byte>();
// Byte p;
string p;
int temp = 0;
if (plain.Length % 2 != 0)
[Code] ....
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May 7, 2014
In formatting strings, how would I only get the decimals?
So, 1.456 would be .456(no digit before the decimal). I have seen a lot on removing the decimals or rounding to a certain place.
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Feb 16, 2014
Suppose i have a very large number stored as a string, say
std::string str = "1000000000000000000000000000000000001";
And i use std::stringstream to convert it to int like this
std::stringstream ss(str);
uint64_t i;
ss >> i;
Then I would be maxed out right. so how would one practically handle things like comparison of two such numbers.
I could think of 2 approaches :
1) I can compare the numbers character by character.
2) I can put the results of ss >> i; into an array then compare each element of array
would there be any other methods??
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Aug 1, 2014
How to return as a pointer to a string?
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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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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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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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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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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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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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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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May 21, 2013
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
}
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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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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]='