In this video, see a solution to this chapter's challenge.
(upbeat music)…- Let's take a look at this solution to the problem,…and this is how we'll do it.…First I will guide you through the code…so that you can understand how I'm using the functions,…and next I will create a new file,…and write some text in it so that I can run the application,…and show you how it was successfully copied.…So let's get started.…
As you can see, I only have one main function…starting at line three, and the first thing I do…is declare two strings.…One is called source.…The next one is called target,…and they are both 50 characters long.…So in line six, I am asking the user…for a source file name with a print F function call.…And next, in line seven, I am using scan F…to get that string into source.…I'm doing the same in lines eight and nine…for the target file name.…
Now, in lines 11 and 12, that's where I'm creating…the file descriptors with F open, and I am using the source…and target file names respectively,…but notice how, in line 11, I am using the R access mode…whereas in line 12, I am using the W access mode.…
Author
Released
2/6/2019- Working with header files
- C constants and types
- Unformatted and formatted input/output
- Accessing files with C functions
- Generating random numbers
- Converting strings
- Sorting and searching for data
- Manipulating strings
- Using mathematical functions
Skill Level Intermediate
Duration
Views
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Introduction
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1. The C Standard Library
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Overview of the library1m 51s
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Header files1m 50s
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Constants and types3m 47s
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2. Input and Output Library: stdio.h
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Unformatted I/O2m 34s
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Unformatted I/O example2m 34s
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Formatted I/O2m 51s
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Formatted I/O example5m 10s
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File access1m 55s
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File access example3m 53s
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3. General Purpose: stdlib.h
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Memory allocation1m 32s
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Memory allocation example2m 29s
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Random number generation1m 48s
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String conversion2m 11s
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String conversion example6m 29s
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Sort and search1m 52s
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Sort and search main4m 50s
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Challenge: Let's get random1m 38s
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Solution: Let's get random5m 40s
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4. String Functions: string.h
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String manipulation1m 21s
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String examination1m 43s
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5. Mathematical Functions: math.h
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Mathematical functions2m 50s
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Trigonometric functions1m 42s
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Powers and exponentials1m 9s
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Conclusion
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Next steps1m
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Video: Solution: Copying a text file