Lecture 16: October 30, 2019

Reading: C text, §11
Due: Homework #3, due November 8, 2019

1. Greetings and felicitations!
2. Arrays of strings
   1. int main(int argc, char *argv[]) (same as int main(int argc, char **argv))
   2. Example programs: echo.c, echo2.c
3. Files
   1. Review files and file pointers — mention file descriptors as underlying mechanism
   2. Standard I/O library (stdio.h)
   3. Standard input, output, error (stdin, stdout, stderr)
   4. Opening, closing files (fopen, fclose)
4. Reading, writing characters and lines
   1. Reading text data as lines (fgets, gets — do not use this!)
   2. Reading text data as characters (fgetc, getc, getchar, ungetc)
   3. Writing text data as lines (fputs, puts— latter adds a trailing newline)
   4. Writing text data as characters (fputc, putc, putchar)
5. Reading, writing text data with a fixed format
   1. Reading in text data with a fixed format (fscanf, scanf)
   2. Outputting text data with a fixed format (fprintf, printf)
6. Printing the contents of a file
   1. Simple copy (scopy.c)
   2. Using fputs (printfile1.c)
   3. Using putchar (printfile2.c)
   4. Using command-line arguments (printfile3.c)
7. Binary file I/O
   1. Reading with fread
   2. Writing with fwrite
   3. Binary simple copy (sbcopy.c)
8. Other useful stuff
   1. Test for end of file (feof, also EOF or NULL)

Matt Bishop Office: 2209 Watershed Sciences Phone: +1 (530) 752-8060 Email: mabishop@ucdavis.edu

ECS 36A, Programming and Problem Solving Version of October 30, 2019 at 8:10PM

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