Re: NSString doubleValue and zero
Re: NSString doubleValue and zero
- Subject: Re: NSString doubleValue and zero
- From: Jonathan Jackel <email@hidden>
- Date: Wed, 19 Feb 2003 22:52:15 -0500
>
I use the message doubleValue to get a number value out of a string. If
>
the string is not a number then i need to store the string. My problem
>
is that if the string is not a number then doubleValue return 0.
>
>
But then how am i supposed to know when it is an actual number with
>
value 0 or a string that was not a number.
I just stumbled on this. It seems to work.
if ([[NSDecimalNumber decimalNumberWithString:yourString]
isEqualTo:[NSDecimalNumber notANumber]])
{
//it's not a number
} else {
//it is a number
}
Jonathan
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