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@node strtold
@section @code{strtold}
@findex strtold
POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/strtold.html}
Gnulib module: strtold
Portability problems fixed by Gnulib:
@itemize
@item
This function is missing on some platforms:
NetBSD 3.0, OpenBSD 3.8, Minix 3.1.8, older IRIX 6.5, Solaris 9, older Cygwin 1.7.x, MSVC 9, Android 4.4.
@item
This function returns a struct, not a @code{long double}, on some platforms:
HP-UX 11.31/hppa.
@item
This function consumes whitespace even when there is nothing that should
be parsed on some platforms:
IRIX 6.5.
@item
This function allows whitespace between @samp{e} and the exponent on
some platforms:
HP-UX 11.31/ia64, IRIX 6.5.
@item
This function returns the wrong end pointer for @samp{-0x} on some
platforms:
glibc-2.3.2, Mac OS X 10.5, Haiku.
@item
This function returns +0.0 (not @minus{}0.0) for @samp{-0} on some platforms:
IRIX 6.5.
@item
This function fails to parse Infinities and plain NaNs on some platforms:
HP-UX 11.31/ia64, IRIX 6.5.
@item
This function fails to parse @samp{NaN()} on some platforms:
glibc-2.3.2, IRIX 6.5, mingw, Haiku.
@item
This function fails to parse @samp{NaN(@var{n-char-sequence})} on some
platforms:
IRIX 6.5.
@item
This function parses @samp{NaN(@var{n-char-sequence})}, but returns
the wrong end pointer on some platforms:
glibc-2.3.2, mingw, Haiku.
@item
This function fails to parse C99 hexadecimal floating point on some
platforms:
IRIX 6.5, mingw.
@item
In hexadecimal floats, this function allows whitespace between @samp{p}
and the exponent on some platforms:
HP-UX 11.31/ia64.
@item
This function fails to set @code{errno} upon underflow on some platforms:
@c https://cygwin.com/ml/cygwin/2019-12/msg00072.html
Cygwin 2.9.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@item
The replacement function does not always return correctly rounded results.
@end itemize
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