https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71766
Bug ID: 71766 Summary: Strange position of "error: request for member ‘...’ in something not a structure or union" Product: gcc Version: 7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: ch3root at openwall dot com Target Milestone: --- Only the first letter of 'offsetof' is shown in another color for the following testcase. Source code: ---------------------------------------------------------------------- #include <stddef.h> int main() { +offsetof(int, a); } ---------------------------------------------------------------------- Results: ---------------------------------------------------------------------- $ gcc -std=c11 -pedantic -Wall -Wextra -O3 test.c && ./a.out In file included from test.c:1:0: test.c: In function ‘main’: test.c:5:4: error: request for member ‘a’ in something not a structure or union +offsetof(int, a); ^ ---------------------------------------------------------------------- gcc version: gcc (GCC) 7.0.0 20160704 (experimental) For comparison: ---------------------------------------------------------------------- $ clang -std=c11 -Weverything -O3 test.c && ./a.out test.c:5:4: error: offsetof requires struct, union, or class type, 'int' invalid +offsetof(int, a); ^ ~~~ .../lib/clang/3.9.0/include/stddef.h:120:24: note: expanded from macro 'offsetof' #define offsetof(t, d) __builtin_offsetof(t, d) ^ ~ 1 error generated. ---------------------------------------------------------------------- clang version: clang version 3.9.0 (trunk 274502)