Default parameters in C

Question

Is it possible to set values for default parameters in C? For example:

void display(int a, int b=10){ //do something }  main(){   display(1);   display(1,2); // override default value } 

Visual Studio 2008, complaints that there is a syntax error in -void display(int a, int b=10). If this is not legal in C, whats the alternative? Please let me know. Thanks.

Answer 1

Default parameters is a C++ feature.

C has no default parameters.

Answer 2

It is not possible in standard C. One alternative is to encode the parameters into the function name, like e.g.

void display(int a){     display_with_b(a, 10); }  void display_with_b(int a, int b){     //do something }