Hoping for help with separating a single string into a char and float

[dmcbride]

I searched the faq and came up empty...so I apologize if I overlooked this one...

I am needing to separate a string into a char and float respectively...

I can get the char decently easy using the aString.at(i) but am unsure if using atof() is the best method for converting the remaining string to a float (or rather - I am unsure if I am missing something incredibly stupid that I should have noticed)...

For example:
stringName = "A 12345" (user input)
then:
charName = "A"
floatNum = "12345"

I also have to test whether the values are valid...I was planning on testing the charName data based on the ordinal values and making sure they are within a specific range of ordinal values...Is the best way to test the numbers to leave it as a string, test each individual character and then if it passes as valid, run it through atof()?

Thank you!

[Banfa]

rather than atof use strtof, this returns a pointer to the place where the conversion stopped, if that character is not the end of the string or there is not only white space between that character and the end of the string then the string is invalid. You also get the result at the same time which is handy.

[dmcbride]

Awesome, thank you for the suggestion. This stuff is way over my head at this point, but I think just jumping in head first is probably the best way to learn.

[vermarajeev]

Why not try using istringstream defined in sstream like this

int main(void)
{
    string str;
    string name;
    float flt;
    cout<<"Enter the name"<<endl; 
    getline(cin, str, '\n');  //I entered A 1234
 
    istringstream is(str);
    is >> name;
    is >> flt;  
 
    cout<<name<<endl;
    cout<<flt<<endl;
    return 0;
}