kc3-lang/gnulib/doc/posix-headers/limits.texi

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• Hash : 8e4d6bf2
  Author :
  Date : 2021-07-30T12:56:24
  

  limits-h: add BOOL_MAX, BOOL_WIDTH
  
  * doc/posix-headers/limits.texi (limits.h): Document them.
  * lib/limits.in.h: Also define CHAR_WIDTH etc. if C2x.
  (BOOL_MAX, BOOL_WIDTH): New macros, from C2x.
  * m4/limits-h.m4 (gl_LIMITS_H): Also check BOOL_WIDTH.
  

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• doc/posix-headers/limits.texi

• @node limits.h
  @section @file{limits.h}
  
  POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/limits.h.html}
  
  Gnulib module: limits-h or gethostname
  
  Portability problems fixed by Gnulib module @code{limits-h}:
  @itemize
  @item
  The macros @code{LLONG_MIN}, @code{LLONG_MAX}, @code{ULLONG_MAX} are not
  defined on some platforms:
  older glibc systems (e.g. Fedora 1), AIX 5.1, HP-UX 11, IRIX 6.5, OpenVMS.
  @item
  The macros @code{WORD_BIT}, @code{LONG_BIT} are not defined on some platforms:
  glibc 2.11 without @code{-D_GNU_SOURCE}, Cygwin, mingw, MSVC 14.
  @item
  Macros like @code{CHAR_WIDTH} are not defined on some platforms:
  glibc 2.24, NetBSD 9.0, many others.
  @item
  The macros @code{BOOL_MAX} and @code{BOOL_WIDTH} are not defined on
  some platforms:
  glibc 2.32, many others.
  @end itemize
  
  Portability problems fixed by Gnulib module @code{gethostname}:
  @itemize
  @item
  The @code{HOST_NAME_MAX} macro is not defined on some platforms:
  macOS 11.1, FreeBSD 13.0, NetBSD 9.0, OpenBSD 6.7, AIX 5.1, HP-UX 11,
  IRIX 6.5, Solaris 11.4, Cygwin 1.5.x, mingw, MSVC 14.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @item
  The macro @code{SSIZE_MAX} has the wrong type,
  albeit with the correct value:
  32-bit glibc 2.24 (on some architectures), Cygwin 2.5.2.
  @item
  The macro @code{SSIZE_MAX} is not defined on some platforms:
  MSVC 14.
  @end itemize
  
  For @code{PATH_MAX}, Gnulib provides a module @code{pathmax} with a header
  file @code{"pathmax.h"}.  It defines @code{PATH_MAX} to a constant on
  platforms with a file name length limit.
  

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