5 POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/ftello.html}
9 Portability problems fixed by Gnulib:
12 This function is missing on some platforms:
15 The declaration of @code{ftello} in @code{<stdio.h>} is not enabled by default
19 This function produces incorrect results after @code{putc} that followed a
20 @code{getc} call that reached EOF on some platforms:
23 This function fails on seekable stdin, stdout, and stderr: cygwin <= 1.5.24.
25 On platforms where @code{off_t} is a 32-bit type, @code{ftello} does not work
26 correctly with files larger than 2 GB@. (Cf. @code{AC_SYS_LARGEFILE}.)
29 Portability problems not fixed by Gnulib:
32 This function produces incorrect results immediately after @code{fseek} on some
36 @code{fflush}, @code{ftell}, @code{ftello}, @code{fgetpos} behave incorrectly
37 on input streams that are opened in @code{O_TEXT} mode and whose contents
38 contains Unix line terminators (LF), on some platforms: mingw, MSVC 14.