[Issue 23689] ImportC: C tests in the testsuite are not valid C

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23689

Walter Bright <bugzilla at digitalmars.com> changed:

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--- Comment #1 from Walter Bright <bugzilla at digitalmars.com> ---
Since every C compiler has extensions, and I can't remember a C header file yet
that could resist using them, ImportC has to compile them, too. The ImportC C
extensions are pretty much all either extensions used in C .h files, or ones
that come from the use of D semantic routines.

If ImportC was a strict C11 compiler, it would not be useful to our users.

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