source: doc/theses/rob_schluntz_MMath/examples/test_scoped_guard.c

#include "scope_guard.h"

extern "C" {
  void free(void *);
}

int main() {
  int * x = malloc(sizeof(10));
  // ScopeGuard(int*, void) foo;
  ScopeGuard foo;
  foo.fn = free;
}