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

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• Hash : 2eb92c36
  Author :
  Date : 2022-08-09T23:20:49
  

  stdckdint-h: new module
  
  This supports draft C23 <stdckdint.h>.
  * doc/posix-headers/stdckdint.texi:
  * lib/stdckdint.in.h, modules/stdckdint:
  * modules/stdckdint-tests, tests/test-stdckdint.c:
  New files.
  * MODULES.html.sh, doc/gnulib.texi: Update for new module.
  * lib/intprops-internal.h: Include <stdckdint.h> if C23 and
  its macros would help and our substitute has not already
  started to be included.
  (_GL_INT_ADD_WRAPV, _GL_INT_SUBTRACT_WRAPV)
  (_GL_INT_MULTIPLY_WRAPV): Use ckd_add, ckd_sub, ckd_mul
  if they are defined and would help.
  * lib/intprops-internal.h, lib/intprops.h: Improve comments.
  The C23 restrictions on stdckdint macros already mostly applied to
  intprops.h, so these are clarifications, not further restrictions.
  * tests/test-intprops.c: If TEST_STDCKDINT is defined,
  include <stdckdint.h> instead of "intprops.h", and test
  it instead.
  (VERIFY) [TEST_STDCKDINT]: Ignore the arg in this case.
  (main) [TEST_STDCKDINT]: Skip tests irrelevant to stdckdint.h.
  

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• doc/posix-headers/stdckdint.texi

• @node stdckdint.h
  @section @file{stdckdint.h}
  
  POSIX specification:@* Not in POSIX yet, but we expect it will be.
  ISO draft C23
  (@url{https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3047.pdf})
  section 7.20.
  
  Gnulib module: stdckdint
  
  Portability problems fixed by Gnulib:
  @itemize
  @item
  This header file is missing on many platforms.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @item
  In draft C23, arguments of @code{stdckdint.h} macros can have side effects.
  @end itemize
  

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