I see this in the guidelines of my assignment. It is rather confusing.
Beside the use of string function, what is the point of converting the content of a character array into string?Code:char arr[10]; cin.getline(arr,10); string str(arr);
Why use character array?Why not just define a string?
I can't think of any reason, besides not knowing about the non-member getline function.
"Think not but that I know these things; or think
I know them not: not therefore am I short
Of knowing what I ought."
-John Milton, Paradise Regained (1671)
"Work hard and it might happen."
-XSquared
Perhaps the intent is to limit the input to 9 characters. The string version of getline is not capable of doing that.
Thx!
I need to convert part of a character array into integer and am wondering how.
How to convert string into integer ?
How to convert string into content of a character array ?
I ask these questions because I think the atoi thing on C++.com may be able to do these. It need an entire character array but in my case, I only need part of a character array for conversion to integer.
This is the example on c++.com:
Code:/* atoi example */ #include <stdio.h> #include <stdlib.h> int main () { int i; char szInput [256]; printf ("Enter a number: "); gets ( szInput ); i = atoi (szInput); printf ("Value entered is %d, and its double %d",i,i*2); return 0; } Output: Enter a number: 73 Value entered is 73, and its double 146
Last edited by Roy01; 11-19-2006 at 08:32 AM.
More basic question about string. My problem is here:
Code:#include <iostream> #include <stdlib.h> #include <string> using namespace std; void main() { string str='000-000-0000';//The compiler said the string is too long. How to fix it? if (str=='000-000-0000')//Using == operator is illegal here. How to fix it? cout<<str; }
Single quotes/apostrophes (' ') denote a single char, double quotes(" ") a char array; use double quotes.
Also, use int main, not void main. Also, prefer cstdlib over stdlib.h and only if your code requires it.
CProgramming FAQ
Caution: this person may be a carrier of the misinformation virus.
Thank you, Ken.
