This file is indexed.

/usr/include/compiletimeassert.h is in libowfat-dev 0.30-2ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

1
2
3
#define __X(x, y) x ## y
#define __Y(x, y) __X(x, y)
#define compiletimeassert(cond) struct __Y(foo,__LINE__) { char __temp[1 - (!(cond))*2]; };