C Programming Absolute Beginner's Guide (3rd Edition)

char model[15]; // Model code int diskSpace; // Disk size in Gigabytes int memSpace; // Memory Space in Gigabytes int ports; // ...

Click here to view code image #include "c:\cprogramming files\inv.h" main() { struct invStruct item1, item2, item3; // Rest of p ...

Click here to view code image item1 = (struct invStruct *)malloc(sizeof(invStruct)); item2 = (struct invStruct *)malloc(sizeof(i ...

main() { int ctr; struct bookInfo books[3]; // Array of three structure variables // Get the information about each book from th ...

struct bookInfo * books[3]; // Array of three structure variables // Get the information about each book from the user for (ctr ...

Don’t forget to add a semicolon to the end of all structure definitions. Don’t intermix the dot operator and the structure poin ...

Part V: Files and Functions ...

28. Saving Sequential Files to Your Computer In This Chapter Storing information in disk files Opening a file Using sequential ...

All disk files have names that conform to the same naming rules as filenames on your operating system. Before you can use a disk ...

Tip If you don’t have a C: drive, change the C: in these examples to a different drive letter. In fact, if you want to put your ...

to a file, you can use fprintf(). fprintf() is easy because it’s just a printf() with a file pointer at the beginning of its par ...

fprintf(fptr, "\n\nHere is the collection of books: \n"); for (ctr = 0; ctr < 3; ctr++) { fprintf(fptr, "#%d: %s by %s", (ctr ...

Tip Think of the f at the beginning of fputs() and fgets() as standing for file. puts() and gets() go to the screen and keyboard ...

} fclose(fptr); // Always close your files return(0); } feof() returns a true condition if you just read the last line from the ...

} Here is what MYDATA.DAT now contains (notice the extra line): Click here to view code image Here is the collection of books: # ...

29. Saving Random Files to Your Computer In This Chapter Opening random files Moving around in a file This chapter shows you h ...

TABLE 29.1 The Random-Access fopen() Modes Note As with sequential files, the access mode is a string that appears as the last a ...

TABLE 29.2 origin Values That Can Appear in fseek() The origin value tells C the position from where you want to access the rand ...

exit(1); } for (letter = 'A'; letter <= 'Z'; letter++) { fputc(letter, fptr); } puts("Just wrote the letters A through Z"); / ...

list with the altered list of letters.*/ #include <stdio.h> #include <stdlib.h> FILE * fptr; main() { char letter; i ...