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Objective-C Programming: The Big Nerd Ranch Guide
book

Objective-C Programming: The Big Nerd Ranch Guide

by Aaron Hillegass, Mikey Ward
November 2013
Beginner
325 pages
9h 47m
English
Big Nerd Ranch Guides
Content preview from Objective-C Programming: The Big Nerd Ranch Guide

Challenge: using readline()

The return value of the readline function from Chapter 8 is of type const char *, or a C string. It is possible to get an NSString instance with the same characters as any given C string by sending the stringWithUTF8String: class message to the NSString class and passing in the C string as its argument.

Re-write the readline() challenge from Chapter 8 to use an NSString and NSLog() rather than a C string and printf(). You will want to create a new Foundation Command Line Tool.

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Publisher Resources

ISBN: 9780133491920Purchase book