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de138ad63a
* doc/posix-functions/strtod.texi (strtod): Document bugs with "-0x", "inf", "nan", and hex constants. * doc/posix-functions/atof.texi (atof): Likewise. * modules/stdlib (Makefile.am): Support strtod. * m4/stdlib_h.m4 (gl_STDLIB_H_DEFAULTS): Likewise. * m4/strtod.m4 (gl_FUNC_STRTOD): Fit in stdlib framework, and detect additional strtod bugs. * lib/stdlib.in.h (rpl_strtod): Add declarations. * lib/strtod.c (strtod): Return -0.0 on negative underflow. Use bool where appropriate. Parse 'inf' and 'nan'. * tests/test-strtod.c: New file. * modules/strtod (Depends-on): Add stdbool, stdlib. (configure.ac): Turn on module indicator. * modules/strtod-tests: New module. Signed-off-by: Eric Blake <ebb9@byu.net>
51 lines
1.1 KiB
Plaintext
51 lines
1.1 KiB
Plaintext
@node atof
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@section @code{atof}
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@findex atof
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POSIX specification: @url{http://www.opengroup.org/susv3xsh/atof.html}
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Gnulib module: ---
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Portability problems fixed by Gnulib:
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@itemize
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@end itemize
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Portability problems not fixed by Gnulib:
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@itemize
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@item
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This function mis-parses strings with leading @samp{+} on some old platforms:
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Old versions of Linux.
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@item
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This function returns a positive value for negative underflow on some
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platforms:
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glibc 2.4, Mingw, Cygwin.
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@item
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This function fails to do a valid parse of @samp{-0x} on some
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platforms:
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glibc 2.4, Cygwin < 1.5.25-11.
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@item
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This function fails to parse Infinities and plain NaNs on some platforms:
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Solaris 8, Mingw, OpenBSD 4.0.
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@item
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This function fails to parse NaN() on some platforms:
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Solaris 8, Mingw, OpenBSD 4.0, Cygwin < 1.5.25-11.
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@item
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This function fails to parse NaN(n-char-sequence) on some platforms:
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Solaris 8, Mingw, OpenBSD 4.0.
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@item
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This function fails to parse C99 hexadecimal floating point on some
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platforms:
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Solaris 8, Mingw, OpenBSD 4.0.
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@item
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This function fails to correctly parse very long strings on some
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platforms:
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Mingw, Cygwin.
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@end itemize
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