Python keyword arguments in C.

keyword_arguments.c

#include <stdio.h>

//create your arguments list.
struct args {
	char *name;
	int x;
	int y;
	int width;
	int height;
};

//create a function that receives a pointer to your arguments list.
void foo(struct args *a) {
	printf("%s %i %i %i %i\n", a->name, a->x, a->y, a->width, a->height);
}

//create a macro that converts foo(...) to foo(pointer of your arguments list)
#define foo(...) foo(&(struct args) {__VA_ARGS__})

int main() {	
	foo(.x = 10, .y = 20, .name = "Hello, world!\n");
}