checking for number in c++

[Serex]

Hey i was just wondering if there was a function that test a variable to being a number.

such as the isNaN() function of javascript

[Mhtml]

I guess you mean in a string?

[Serex]

yeh say i have a cin >> linked to a string. is there anyway i can filter it so no numbers can be input.

[Jason]

you would have to take each char and type cast it to an int for its ascii value and then check to see if its within the correct ascii range for non numbers...


Jason

[Serex]

ok ty jason