On Fri, Dec 24, 2021 at 5:16 AM Junio C Hamano <gitster@xxxxxxxxx> wrote: > Once you > initialize at the declaration with "less meaningful" value (like > zero initialization), the tools won't be able to tell when the code > uses that variable "uninitialized" (because the assignment was > skipped by a bug), since it appears to always be initialied to them. Which tools are these? When I add static void test_memcpy(void) { uint32_t dest; char not_init[200]; int i; memcpy(&dest, not_init, sizeof(dest)); for (i = 0 ; i < 10; i++) not_init[i] = rand() % 255 + 1; printf("%d", (int) strlen(not_init)); } to the C code, it compiles cleanly if I do "make DEVELOPER=1". -- Han-Wen Nienhuys - Google Munich I work 80%. Don't expect answers from me on Fridays. -- Google Germany GmbH, Erika-Mann-Strasse 33, 80636 Munich Registergericht und -nummer: Hamburg, HRB 86891 Sitz der Gesellschaft: Hamburg Geschäftsführer: Paul Manicle, Halimah DeLaine Prado