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You're reading from  Learn C Programming. - Second Edition

Product typeBook
Published inAug 2022
PublisherPackt
ISBN-139781801078450
Edition2nd Edition
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Jeff Szuhay
Jeff Szuhay
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Jeff Szuhay

Jeff Szuhay is the principal developer at QuarterTil2 which specializes in graphics-rich software chronographs for desktop environments. In his software career of over 35 years, he has engaged in a full range of development activities from systems analysis and systems performance tuning to application design, from initial development through full testing and final delivery. Throughout that time, he has taught computer applications and programming languages at various educational levels from elementary school students to university students, as well as developed and presented professional, on-site training.
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Creating a file of unsorted names

Now that we have getoptFiles.c, we can use it as a starting point for our next sequential file program, createUnsorted.c. This program will be used to create a file of names, one name on a line, that will later become input to the sortNames.c program. 

In createUnsorted.c, we will repeatedly read in a single name and write it out. We can test the functionality of this program by using stdin and stdout as well as reading and writing files.

However, before we can go further, we need to consider the issue of dirty input data. We can assume that a name begins with alphanumeric characters and ends with alphanumeric characters; we will assume that anything in between is part of the name, however odd it may appear. What happens if the user enters whitespace either before or after the name? Or if there is whitespace both before and after the name? Recall also that fgets() ends its input...

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Learn C Programming. - Second Edition
Published in: Aug 2022Publisher: PacktISBN-13: 9781801078450

Author (1)

author image
Jeff Szuhay

Jeff Szuhay is the principal developer at QuarterTil2 which specializes in graphics-rich software chronographs for desktop environments. In his software career of over 35 years, he has engaged in a full range of development activities from systems analysis and systems performance tuning to application design, from initial development through full testing and final delivery. Throughout that time, he has taught computer applications and programming languages at various educational levels from elementary school students to university students, as well as developed and presented professional, on-site training.
Read more about Jeff Szuhay