ftello
======

POSIX specification:
 https://pubs.opengroup.org/onlinepubs/9699919799/functions/ftello.html

Gnulib module: ftello

Portability problems fixed by Gnulib:

  * This function is missing on some platforms: mingw, MSVC 14.

  * The declaration of ftello in <stdio.h> is not enabled by default on some platforms: glibc 2.3.6.

  * This function produces incorrect results after putc that followed a getc call that reached EOF on some platforms: Solaris 11 2010-11.

  * This function fails on seekable stdin, stdout, and stderr: cygwin <= 1.5.24.

  * On platforms where off_t is a 32-bit type, ftello does not work correctly with files larger than 2 GB.  (Cf. AC_SYS_LARGEFILE.)

Portability problems not fixed by Gnulib:

  * This function produces incorrect results immediately after fseek on some platforms: HP-UX 11.

  * fflush, ftell, ftello, fgetpos behave incorrectly on input streams that are opened in O_TEXT mode and whose contents contains Unix line terminators (LF), on some platforms: mingw, MSVC 14.