Programming in C

400 Chapter 18 Debugging Programs Lines from a function can be listed by specifying the function’s name to the listcom- mand: (g ...

Debugging Programs with gdb 401 Single Stepping Another useful command for controlling program execution is the stepcommand, whi ...

402 Chapter 18 Debugging Programs newdate->day = 15; newdate->year = 2004; today = foo (today); free (newdate); return 0; ...

Debugging Programs with gdb 403 21 int array[5] = {1, 2, 3, 4, 5}; (gdb) print today $1 = { month = 10, day = 11, year = 2004 } ...

404 Chapter 18 Debugging Programs i = 3 (gdb) break foo Put a breakpoint at the start of foo Breakpoint 2 at 0x1c98: file p18-5. ...

Debugging Programs with gdb 405 You can delete a breakpoint at a particular line with the clearcommand followed by the line numb ...

406 Chapter 18 Debugging Programs month = 11, day = 16, year = 2004 } (gdb) Here, the function foois as defined in Program 18.5. ...

Debugging Programs with gdb 407 status -- Status inquiries support -- Support facilities tracepoints -- Tracing of program execu ...

408 Chapter 18 Debugging Programs Alternatively, you can specify a command, such as one from the previous list: (gdb_ help break ...

Debugging Programs with gdb 409 Ta b le 18.1 Common gdbCommands Command Meaning SOURCEFILE list [n]^2 Displays lines around line ...

...

19 Object-Oriented Programming 19 Object-Oriented Programming BECAUSE OBJECT-ORIENTED PROGRAMMING(OROOP) is so popular, and beca ...

412 Chapter 19 Object-Oriented Programming Ta b le 19.1 Actions on Objects Object What You Do with It Your car Drive it Fill it ...

Writing a C Program to Work with Fractions 413 This is one of the key concepts behind object-oriented programming (that is, appl ...

414 Chapter 19 Object-Oriented Programming Program 19.1 Working with Fractions in C // Simple program to work with fractions #in ...

Defining an Objective-C Class to Work with Fractions 415 //------- @interface section ------- @interface Fraction: Object { int ...

416 Chapter 19 Object-Oriented Programming printf ("The value of the fraction is %i/%i\n", numerator, denominator); } @end //--- ...

Defining an Objective-C Class to Work with Fractions 417 The name of the new class is Fraction, and its parent class is Object.C ...

418 Chapter 19 Object-Oriented Programming When you declare a new method (and similar to declaring a function), you tell the Obj ...

Defining a C++ Class to Work with Fractions 419 do just that.The first message statement sends the setNumerator:message to myFra ...