Re: char Array to NSString to cString?
Re: char Array to NSString to cString?
- Subject: Re: char Array to NSString to cString?
- From: Charles Steinman <email@hidden>
- Date: Fri, 1 Jun 2007 08:34:40 -0700 (PDT)
This is really a job for NSData. If you can use that, I would. NSString makes no guarantees about how it represents things internally, as far as I know.
Cheers,
Chuck
Vince Ackerman <email@hidden> wrote: I'm having a bit of trouble trying to convert an array of 7 (unsigned
char) to a NSString. I need to pass this array of hex values to
another object that is expecting an NSString that it will convert to
a C string and send it out the serial port using this function:
-(int)writeString:(NSString *)string
{
return write(fileDescriptor, [string cString], [string cStringLength]);
}
I need it to write these hex values exactly without any conversion or
encoding. I'm getting a bit lost (as a Newbie) as to how to convert
from an array to NSString then back again to c string since 10.4
deprecates all the cString methods. The methods I've tried seem to be
changing the hex values.
This is an example of hex numbers in myArray:
(unsigned char) myArray[7];
0xff 0x01 0x00 0x02 0x20 0x00 0x23
Can anyone help me understand how to do this?
Thanks in advance,
Vince
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