Bug 23694 – compilable/ctests2.c:51:9: error: initializer element is not constant

When compiling the test with `gcc -std=c11 -fsyntax-only` compilable/cppflags.c:4:16: error: ‘ABC’ undeclared here (not in a function) 4 | _Static_assert(ABC == 3, "1"); | ^~~ compilable/cppflags.c:4:16: error: expression in static assertion is not an integer Original test content: ``` /*************************************************/ // https://issues.dlang.org/show_bug.cgi?id=22398 const int a; int b = a; ```

This is somewhat documented on https://dlang.org/spec/importc.html#ctfe Perhaps some examples of what ImportC can do vs. GCC.

(In reply to Iain Buclaw from comment #0) > compilable/cppflags.c:4:16: error: ‘ABC’ undeclared here (not in a function) > 4 | _Static_assert(ABC == 3, "1"); > | ^~~ > compilable/cppflags.c:4:16: error: expression in static assertion is not an > integer Actual error compilable/ctests2.c: At top level: compilable/ctests2.c:51:9: error: initializer element is not constant 51 | int b = a; | ^

@WalterBright created dlang/dlang.org pull request #3535 "fix Issue 23694 and Issue 23700 Document ImportC CTFE" fixing this issue: - fix Issue 23694 and Issue 23700 Document ImportC CTFE https://github.com/dlang/dlang.org/pull/3535

dlang/dlang.org pull request #3535 "fix Issue 23694 and Issue 23700 Document ImportC CTFE" was merged into master: - f89e67a7d88bc5792d2dec37620ab49180edc60a by Walter Bright: fix Issue 23694 and Issue 23700 Document ImportC CTFE https://github.com/dlang/dlang.org/pull/3535

*** Issue 23700 has been marked as a duplicate of this issue. ***