COMP 206 Lecture Notes - Lecture 24: C Dynamic Memory Allocation, Memory Management, Global Variable

• School: McGill University
• Department: Computer Science (Sci)
• Course: COMP 206
• Professor: David P.Meger

Document Summary

Has no concept of object programming or classes, but we can use structs, dynamic memory, and function pointers together to create a functionality similar to object programming. We can define debug functions that have any number of arguments. Takes the pla(cid:272)e of (cid:858)(cid:272)lass(cid:859) i(cid:374) other progra(cid:373)(cid:373)i(cid:374)g la(cid:374)guages. A struct is a group of fields of a certain type (you can build structs of structs or structs of type int, char, etc. ) Can define single variables, arrays, and pointers to structs. Using a struct: to use a struct, you must create a variable. Note that a here is a global variable of struct type abc. You can use typedef to define a new type identifier typedef struct course int numstudents; char name_prof[100]; char location_building[100]; int location_room; Mycourse is the new type identifier; now when identifying a new struct variable, i use mycourse instead of struct course. Mycourse cs206; cs206 is the variable in this case.