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Diffstat (limited to 'gnulib/doc/posix-headers/float.texi')
| m--------- | gnulib | 0 | ||||
| -rw-r--r-- | gnulib/doc/posix-headers/float.texi | 32 |
2 files changed, 32 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/doc/posix-headers/float.texi b/gnulib/doc/posix-headers/float.texi new file mode 100644 index 0000000..09f1388 --- /dev/null +++ b/gnulib/doc/posix-headers/float.texi @@ -0,0 +1,32 @@ +@node float.h +@section @file{float.h} + +POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/basedefs/float.h.html} + +Gnulib module: float + +Portability problems fixed by Gnulib: +@itemize +@item +The conversion from @code{int} to @code{long double} in incorrect on some +platforms: +glibc 2.7 on Linux/SPARC64. +@item +The values of @code{LDBL_*} macros are incorrect on some platforms: +On OpenBSD 4.0, MirBSD 10, and BeOS, they are the same as the values of the +@code{DBL_*} macros, although @samp{long double} is a larger type than +@samp{double}. +On FreeBSD/x86 6.4, they represent the incorrect 53-bit precision assumptions +in the compiler, not the real 64-bit precision at runtime. +On Linux/PowerPC with GCC 4.4, on AIX 7.1 with GCC 4.2, and on IRIX 6.5, +they don't reflect the ``double double'' representation of @code{long double} +correctly. +@end itemize + +Portability problems not fixed by Gnulib: +@itemize +@item +The macro @code{FLT_ROUNDS} is a constant expression and does not represent +the current rounding mode on some platforms: +glibc 2.11, HP-UX 11, mingw. +@end itemize |