John Gateley wrote: > I'm looking for 64 bit I/O functions, such as ftruncate or > stat/fstat/lstat. Some functions exist in 64 bit versions > (such as lseek64), but for others I couldn't find anything. > This is using g++ on linux. Normally you don't call the 64 bit versions explicitly, you just add -D_FILE_OFFSET_BITS=64 to CPPFLAGS and you get the large-file aware version of all interfaces without the 64 suffix. If you really want to call them by name then you instead define _LARGEFILE64_SOURCE and you get the interfaces with the 64 suffix, but that was only added as a crutch for the transition period where some programs weren't LFS aware. Those days should hopefully be in the past, so don't uglify your code unnecessarily. > Sorry if this isn't the appropriate venue for this question. > I couldn't find a better one. Please direct me on if it isn't. These functions are provided by the libc, which is not a part of gcc, so it's technically off topic here. See the glibc manual for details: <http://www.gnu.org/software/libc/manual/html_node/Feature-Test-Macros.html>. Brian
