rethink their coding style…

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1. /* off_t might have a wider range than ssize_t - in other words,
2. the max size of a file might be bigger than the address
3. space. We can't handle a file that large. (Anyone with
4. a single source file bigger than 2GB needs to rethink
5. their coding style.) Some systems (e.g. AIX 4.1) define
6. SSIZE_MAX to be much smaller than the actual range of the
7. type. Use INTTYPE_MAXIMUM unconditionally to ensure this
8. does not bite us. */
9.    if (file->st.st_size > INTTYPE_MAXIMUM (ssize_t))
10.    {
11.       cpp_error (pfile, CPP_DL_ERROR, "%s is too large", file->path);
12.       return false;
13.    }
14.  
15.       size = file->st.st_size;