ios: how to convert a NSString to int64_t?

Question

I want to convert a NSString to int64_t and then print it out using:

NSLog("%lld", i);

Now I can only convert using [str integerValue] which sometimes makes it print out the minus number.

What is the content of the string? Integer? Float? Text? – Anne Jun 25 '12 at 15:20 — Anne, Jun 25 '12 at 15:20
How about [str longLongValue]? – borrrden Jun 25 '12 at 15:51 — borrrden, Jun 25 '12 at 15:51

score 4 · Answer 1 · edited Feb 05 '13 at 13:27

4

You can use [str longLongValue]

For example:

int64_t i=[@"23570449442514" longLongValue];

edited Feb 05 '13 at 13:27

CloudyMarble

answered Feb 05 '13 at 13:07

Mohamed Adly

score 4 · Answer 2 · answered Nov 20 '13 at 03:16

4

longLongValue works! [str longLongValue];

answered Nov 20 '13 at 03:16

user2975399

score 1 · Accepted Answer · answered Jun 25 '12 at 15:21

1

You may use the atoll function.

int64_t i = atoll([str UTF8String]);

answered Jun 25 '12 at 15:21

What is the class of your `str` object if not `NSString`?! – Nicolas Bachschmidt Jun 25 '12 at 16:11

3 Answers3