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Disclaimer: I am a complete newbie with C, but I've been playing with it trying to mimic some features of classes. Ok, I know that if I want to go that way I should learn C++, but consider the following a little experiment . Schreiner, in the book Object-oriented programming with ANSI-C suggests a way to use pointers to get object orientation features in C. I must admit I have only skimmed through the book, but I don't like his approach too much. Basically, he uses pointers to functions in order to arrange that func(foo); actually results in calling foo.methods->func(); where foo.methods is a struct containing pointers to functions. The thing I do not like in this approach is that one has to have the global function foo anyway; that is, methods are not namespaced by the class they live in. My feeling is that this will soon lead to clutter: think two objects foo and bar , both having a method func but with a different number of parameters. So I have tried to get something more fit to my taste. A first attempt is the following (I omit the declarations for sake of brevity) #include <stdio.h> //Instances of this struct will be my objects struct foo { //Properties int bar; //Methods void (* print)(struct foo self); void (* printSum)(struct foo self, int delta); }; //Here is the actual implementation of the methods static void printFoo(struct foo self) { printf("This is bar: %d\n", self.bar); } static void printSumFoo(struct foo self, int delta) { printf("This is bar plus delta: %d\n", self.bar + delta); } //This is a sort of constructor struct foo Foo(int bar) { struct foo foo = { .bar = bar, .print = &printFoo, .printSum = &printSumFoo }; return foo; } //Finally, this is how one calls the methods

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