under WXP/NTFS, console exe C project:
fwrite(...) from <stdio.h> -- CB v.16.01 (gcc 4.9.2)
can't write more then ~46-48GB file (don't remember exactly size for now)
NB: read not checked jet ...
Is it CB, or gcc libs, or ... limit?
PS: Sorry if apparently for all, just I coded on C <~2000 last time...