find item and then remove it in NSMutableData array - objective-c

Question

I have NSMutableData array of bytes. I need to find item and then delete it.
my code:
NSArray *array = [[tunerButtonHostInfo objectForKey:#"local"] objectForKey:#"snPacket"];
NSMutableData *asciiData = [[NSMutableData alloc] init];
[asciiData appendData [#"\x00\x00\x02\x00\x00\x0e"dataUsingEncoding:NSASCIIStringEncoding]];
if(array != nil && ![array isKindOfClass:[NSNull class]] && [array isKindOfClass:[NSArray class]]) {
for(NSNumber *asciiCode in array) {
int asc = [asciiCode intValue];
if(asc == 0) {
NSString *string = #"\x00"; dataUsingEncoding:NSASCIIStringEncoding]];
}
else {
NSString *converted = [NSString stringWithFormat:#"%c", asc];
[asciiData appendData:[converted dataUsingEncoding:NSUTF8StringEncoding]];
}
}
NSLog(#"stringAsciiData"); //print asciiData
NSLog(#"%#", asciiData);
output of asciiData is:
00000200 000e6808 08680064 6c0b0367 6308c2b0 16
I need to find "c2" in the array and then remove it and shift remaining data in array to the left

Answer 1

Here is the modification to code to c2 . You can use append bytes method instead of converting to string and printing it back:
{
NSArray *array = #[#68,#0x08,#0x08,#68,#00,#64,#0x6c,#0x0b,#03,#67,#63,#0x08,#0xc2,#0xb0,#16];
NSMutableData *asciiData = [[NSMutableData alloc] init];
[asciiData appendData:[#"\x00\x00\x02\x00\x00\x0e"dataUsingEncoding:NSASCIIStringEncoding]];
if(array != nil && ![array isKindOfClass:[NSNull class]] && [array isKindOfClass:[NSArray class]]) {
for(NSNumber *asciiCode in array) {
Byte asc = [asciiCode intValue];
if(asc == 0) {
NSString *string = #"\x00";
[asciiData appendData:[string dataUsingEncoding:NSASCIIStringEncoding]];
}else if(asc != 0xc2) {
[asciiData appendBytes:&asc length:1];
}
}
NSLog(#"stringAsciiData"); //print asciiData
NSLog(#"%#", asciiData);
}
}