kc3-lang/gnulib/doc/posix-functions/gettimeofday.texi

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  Date : 2019-09-22T23:23:20
  

  Update some URLs
  
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• doc/posix-functions/gettimeofday.texi

• @node gettimeofday
  @section @code{gettimeofday}
  @findex gettimeofday
  
  POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/gettimeofday.html}
  
  Gnulib module: gettimeofday
  
  Portability problems fixed by Gnulib:
  @itemize
  @item
  This function is missing on some platforms:
  MSVC 14.
  @item
  This function is declared with a nonstandard function prototype (only one
  argument, or ``...'' after the first argument) on some platforms.
  @item
  On some platforms, the second argument has type @code{struct
  timezone*} rather than @code{void *}, making it an error to redeclare
  the function with the POSIX signature:
  glibc.
  However, rather than penalize these systems with a replacement
  function, gnulib defines @code{GETTIMEOFDAY_TIMEZONE} to the
  appropriate type for use in avoiding a compiler warning if assigning
  @code{gettimeofday} to a function pointer.
  @item
  This function has only a precision of 15.6 milliseconds on some platforms:
  mingw.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @item
  Behavior is non-portable if the second argument to @code{gettimeofday}
  is not @code{NULL}.
  @end itemize
  

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