Wow, __builtin_dump_struct is an amazing clang feature, how did I never hear about this before?

$ cat test.c<br>#[url=https://infosec.exchange/tags/include]include[/url] <stdio.h><br><br>struct nested {<br>  int n;<br>};<br>struct foo {<br>  int member_a;<br>  unsigned long member_b;<br>  char *str;<br>  void *ptr;<br>  struct nested nested;<br>};<br><br>int main(void) {<br>  struct foo f = {<br>    .member_a = 123,<br>    .member_b = 0x4141414141414141,<br>    .str = "foobar",<br>    .ptr = &f,<br>    .nested = {.n = 42}<br>  };<br>  __builtin_dump_struct(&f, printf);<br>}<br>$ clang -o test test.c && ./test<br>struct foo {<br>  int member_a = 123<br>  unsigned long member_b = 4702111234474983745<br>  char * str = "foobar"<br>  void * ptr = 0x7fff1df41b78<br>  struct nested nested = {<br>    int n = 42<br>  }<br>}<br>

The original version of this feature was introduced back in 2018 (though it was reimplemented since in 2022).