https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69960
Bug ID: 69960
Summary: "initializer element is not constant"
Product: gcc
Version: 5.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: felix-gcc at fefe dot de
Target Milestone: ---
This is the code:
#define TOLOWER(x) (x&~0x20)
#define Word(s) \
s[1] ? s[2] ? s[3] ? \
(TOLOWER(s[0]) << 24) + (TOLOWER(s[1]) << 16) + (TOLOWER(s[2]) << 8) +
TOLOWER(s[3]) : \
(TOLOWER(s[0]) << 16) + (TOLOWER(s[1]) << 8) + TOLOWER(s[2]) : \
(TOLOWER(s[0]) << 8) + TOLOWER(s[1]) : \
TOLOWER(s[0])
const unsigned int _the = Word("the");
When compiling, this happens:
test.c:9:32: error: initializer element is not constant
const unsigned int _the = Word("the");
^
test.c:3:3: note: in definition of macro ‘Word’
s[1] ? s[2] ? s[3] ? \
^
How is this not constant? clang thinks it is constant.
