Saturday, May 18, 2013

NSString longLongValue example ios

[NSString longLongValue]

Returns the long long value of the receiver’s text.
- (long long)longLongValue
Return Value
The long long value of the receiver’s text, assuming a decimal representation and skipping whitespace at the beginning of the string. Returns LLONG_MAX orLLONG_MIN on overflow. Returns 0 if the receiver doesn’t begin with a valid decimal text representation of a number.
Discussion of [NSString longLongValue]
This method uses formatting information stored in the non-localized value; use anNSScanner object for localized scanning of numeric values from a string.
Example of [NSString longLongValue]
NSString * theString = [[[_message objectForKey:@"user"] objectForKey:@"id"];

NSNumberFormatter * numberFormatter = [[[NSNumberFormatter alloc] init] autorelease];
NSNumber * number = [numberFormatter numberFromString:theString];

NSLog(@"%llu", [number unsignedLongLongValue]);
Example of [NSString longLongValue]
NSString *numStr = [NSString stringWithFormat:@"%llu", [myNum unsignedLongLongValue]];

// .. code and time in between when numStr was created
// .. and now needs to be converted back to a long long.
// .. Therefore, numStr used below does not imply the same numStr above.

unsigned long long ullvalue = strtoull([numStr UTF8String], NULL, 0);
Example of [NSString longLongValue]
long long int numC;

//Number formatter and string operations

numC = [valuestring longLongValue];

NSString *results = [formatter stringFromNumber:[NSNumber numberWithLongLong: numC]];    
label1.text = results;