Hi!
In the user's manual, section GCC extensions not implemented yet, I read:
clang does not support static initialization of flexible array members. This
appears to be a rarely used extension, but could be implemented pending user
demand.
I interpret this to say that the following program would not work,
because bar would not be allocated space for an array y of three elements:
struct foo {
int x;
int y[];
};
struct foo bar = {1, {2, 3, 4}};
However, testing shows that it does work and there is in fact a similar
test case
(https://github.com/llvm-mirror/clang/blob/master/test/Sema/flexible-array-init.c).
A warning "flexible array initialization is a GNU extension" is printed
only if -Wpedantic is enabled.
Am I reading the documentation wrong or is this a documentation error?
Best Regards,
Anton Eliasson
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