cin >> char[]

I dont think this is possible but can I use cin to get whats inside a char[]? could also use string..

this is gonna be used in a parser so I need to take one char at a time..

ex.
char* temp_string = "2*bob";
char ch;
cin.get(ch) >> temp_string;

the parser should see this as 2 times bob..
I know this exemple doesnt work... its just a guess what it might look like..
thx

"I dont think this is possible but can I use cin to get whats inside a char[]"

cin operates on an input "stream", which is an abstract representation of an input device that's a source for data in your program--not on variables.

You can access the characters in a char[] or a char* using array notation,

char text[30]="2*bob";
char letter;
letter = text[0];

or

char* pstring="2*bob";
char letter;
letter = pstring[0];

Quote:

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Originally posted by Luigi
I dont think this is possible but can I use cin to get whats inside a char[]? could also use string..

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Good idea! This is possible and very useful.

The solution is stringstream:

Code:

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#include <sstream>
using namespace std;

string s = "2 3 4";
stringstream strin(s);

int a;
//Use strin like cin
strin >> a;

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std::istringstream is likely what you want, though if you want to parse "2*a" the streams provide no convenent way to pull off just the "2", then "*", etc... Due to the lack of whitespace. The boost spirit parser is probably the best, most elegant way to solve these sorts of problems, though it takes forever to compile. std::string and the find_first_of family of functions is probably the easiest way to go about these things.