atof
====

POSIX specification: http://www.opengroup.org/onlinepubs/9699919799/functions/atof.html

Gnulib module: ---

Portability problems fixed by Gnulib:

Portability problems not fixed by Gnulib:

  * This function mis-parses strings with leading + on some old platforms: Old versions of Linux.

  * This function returns a positive value for negative underflow on some platforms: glibc 2.4, Mingw, Cygwin.

  * This function fails to do a valid parse of -0x on some platforms: glibc 2.4, Cygwin < 1.5.25-11.

  * This function fails to parse Infinities and plain NaNs on some platforms: Solaris 8, Mingw, OpenBSD 4.0.

  * This function fails to parse NaN() on some platforms: Solaris 8, Mingw, OpenBSD 4.0, Cygwin < 1.5.25-11.

  * This function fails to parse NaN(n-char-sequence) on some platforms: Solaris 8, Mingw, OpenBSD 4.0.

  * This function fails to parse C99 hexadecimal floating point on some platforms: Solaris 8, Mingw, OpenBSD 4.0.

  * This function fails to correctly parse very long strings on some platforms: Mingw, Cygwin.