OverflowDB can produce both GraphML and DOT files. So, the following C source code:
#include <stdio.h>
int main(int argc, char *argv[]) {
int integers[] = {1, 2, 3, 4, 5};
int first = integers[0];
printf("%d\n", first);
const int second = integers[1];
printf("%d\n", second);
int third = (int) integers[2];
printf("%d\n", third);
printf("%d\n", integers[3]);
printf("%d\n", 4[integers]);
const char *string = "ABCD";
printf("%c\n", string[0]);
printf("%c\n", 1[string]);
printf("%c\n", "ABCD"[2]);
printf("%c\n", 3["ABCD"]);
return 0;
}
can be exported into the following graph (DOT, converted to SVG using GVEdit):
Alternative rendering (GraphML, converted to SVG using yEd):