/* Copyright 2019-2021 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ #include struct S1 { int a; int b; }; struct S2 { char str[10]; struct S1 s1; }; struct S3 { struct S2 s2; }; int main () { struct S3 s3; memcpy (s3.s2.str, "abcde\0fghi", 10); s3.s2.s1.a = 3; s3.s2.s1.b = 4; return 0; /* Break here. */ }