From 28ef1abc10cfbc2c3d2747c008eb2300858d0426 Mon Sep 17 00:00:00 2001 From: Lorry Tar Creator Date: Fri, 22 Apr 2016 04:38:07 +0000 Subject: grep-2.25 --- lib/getopt.in.h | 255 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 255 insertions(+) create mode 100644 lib/getopt.in.h (limited to 'lib/getopt.in.h') diff --git a/lib/getopt.in.h b/lib/getopt.in.h new file mode 100644 index 0000000..0f72182 --- /dev/null +++ b/lib/getopt.in.h @@ -0,0 +1,255 @@ +/* Declarations for getopt. + Copyright (C) 1989-1994, 1996-1999, 2001, 2003-2007, 2009-2016 Free Software + Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#ifndef _@GUARD_PREFIX@_GETOPT_H + +#if __GNUC__ >= 3 +@PRAGMA_SYSTEM_HEADER@ +#endif +@PRAGMA_COLUMNS@ + +/* The include_next requires a split double-inclusion guard. We must + also inform the replacement unistd.h to not recursively use + ; our definitions will be present soon enough. */ +#if @HAVE_GETOPT_H@ +# define _GL_SYSTEM_GETOPT +# @INCLUDE_NEXT@ @NEXT_GETOPT_H@ +# undef _GL_SYSTEM_GETOPT +#endif + +#ifndef _@GUARD_PREFIX@_GETOPT_H + +#ifndef __need_getopt +# define _@GUARD_PREFIX@_GETOPT_H 1 +#endif + +/* Standalone applications should #define __GETOPT_PREFIX to an + identifier that prefixes the external functions and variables + defined in this header. When this happens, include the + headers that might declare getopt so that they will not cause + confusion if included after this file (if the system had , + we have already included it). Then systematically rename + identifiers so that they do not collide with the system functions + and variables. Renaming avoids problems with some compilers and + linkers. */ +#if defined __GETOPT_PREFIX && !defined __need_getopt +# if !@HAVE_GETOPT_H@ +# define __need_system_stdlib_h +# include +# undef __need_system_stdlib_h +# include +# include +# endif +# undef __need_getopt +# undef getopt +# undef getopt_long +# undef getopt_long_only +# undef optarg +# undef opterr +# undef optind +# undef optopt +# undef option +# define __GETOPT_CONCAT(x, y) x ## y +# define __GETOPT_XCONCAT(x, y) __GETOPT_CONCAT (x, y) +# define __GETOPT_ID(y) __GETOPT_XCONCAT (__GETOPT_PREFIX, y) +# define getopt __GETOPT_ID (getopt) +# define getopt_long __GETOPT_ID (getopt_long) +# define getopt_long_only __GETOPT_ID (getopt_long_only) +# define optarg __GETOPT_ID (optarg) +# define opterr __GETOPT_ID (opterr) +# define optind __GETOPT_ID (optind) +# define optopt __GETOPT_ID (optopt) +# define option __GETOPT_ID (option) +# define _getopt_internal __GETOPT_ID (getopt_internal) +#endif + +/* Standalone applications get correct prototypes for getopt_long and + getopt_long_only; they declare "char **argv". libc uses prototypes + with "char *const *argv" that are incorrect because getopt_long and + getopt_long_only can permute argv; this is required for backward + compatibility (e.g., for LSB 2.0.1). + + This used to be '#if defined __GETOPT_PREFIX && !defined __need_getopt', + but it caused redefinition warnings if both unistd.h and getopt.h were + included, since unistd.h includes getopt.h having previously defined + __need_getopt. + + The only place where __getopt_argv_const is used is in definitions + of getopt_long and getopt_long_only below, but these are visible + only if __need_getopt is not defined, so it is quite safe to rewrite + the conditional as follows: +*/ +#if !defined __need_getopt +# if defined __GETOPT_PREFIX +# define __getopt_argv_const /* empty */ +# else +# define __getopt_argv_const const +# endif +#endif + +/* If __GNU_LIBRARY__ is not already defined, either we are being used + standalone, or this is the first header included in the source file. + If we are being used with glibc, we need to include , but + that does not exist if we are standalone. So: if __GNU_LIBRARY__ is + not defined, include , which will pull in for us + if it's from glibc. (Why ctype.h? It's guaranteed to exist and it + doesn't flood the namespace with stuff the way some other headers do.) */ +#if !defined __GNU_LIBRARY__ +# include +#endif + +#ifndef __THROW +# ifndef __GNUC_PREREQ +# define __GNUC_PREREQ(maj, min) (0) +# endif +# if defined __cplusplus && __GNUC_PREREQ (2,8) +# define __THROW throw () +# else +# define __THROW +# endif +#endif + +/* The definition of _GL_ARG_NONNULL is copied here. */ + +#ifdef __cplusplus +extern "C" { +#endif + +/* For communication from 'getopt' to the caller. + When 'getopt' finds an option that takes an argument, + the argument value is returned here. + Also, when 'ordering' is RETURN_IN_ORDER, + each non-option ARGV-element is returned here. */ + +extern char *optarg; + +/* Index in ARGV of the next element to be scanned. + This is used for communication to and from the caller + and for communication between successive calls to 'getopt'. + + On entry to 'getopt', zero means this is the first call; initialize. + + When 'getopt' returns -1, this is the index of the first of the + non-option elements that the caller should itself scan. + + Otherwise, 'optind' communicates from one call to the next + how much of ARGV has been scanned so far. */ + +extern int optind; + +/* Callers store zero here to inhibit the error message 'getopt' prints + for unrecognized options. */ + +extern int opterr; + +/* Set to an option character which was unrecognized. */ + +extern int optopt; + +#ifndef __need_getopt +/* Describe the long-named options requested by the application. + The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector + of 'struct option' terminated by an element containing a name which is + zero. + + The field 'has_arg' is: + no_argument (or 0) if the option does not take an argument, + required_argument (or 1) if the option requires an argument, + optional_argument (or 2) if the option takes an optional argument. + + If the field 'flag' is not NULL, it points to a variable that is set + to the value given in the field 'val' when the option is found, but + left unchanged if the option is not found. + + To have a long-named option do something other than set an 'int' to + a compiled-in constant, such as set a value from 'optarg', set the + option's 'flag' field to zero and its 'val' field to a nonzero + value (the equivalent single-letter option character, if there is + one). For long options that have a zero 'flag' field, 'getopt' + returns the contents of the 'val' field. */ + +# if !GNULIB_defined_struct_option +struct option +{ + const char *name; + /* has_arg can't be an enum because some compilers complain about + type mismatches in all the code that assumes it is an int. */ + int has_arg; + int *flag; + int val; +}; +# define GNULIB_defined_struct_option 1 +# endif + +/* Names for the values of the 'has_arg' field of 'struct option'. */ + +# define no_argument 0 +# define required_argument 1 +# define optional_argument 2 +#endif /* need getopt */ + + +/* Get definitions and prototypes for functions to process the + arguments in ARGV (ARGC of them, minus the program name) for + options given in OPTS. + + Return the option character from OPTS just read. Return -1 when + there are no more options. For unrecognized options, or options + missing arguments, 'optopt' is set to the option letter, and '?' is + returned. + + The OPTS string is a list of characters which are recognized option + letters, optionally followed by colons, specifying that that letter + takes an argument, to be placed in 'optarg'. + + If a letter in OPTS is followed by two colons, its argument is + optional. This behavior is specific to the GNU 'getopt'. + + The argument '--' causes premature termination of argument + scanning, explicitly telling 'getopt' that there are no more + options. + + If OPTS begins with '-', then non-option arguments are treated as + arguments to the option '\1'. This behavior is specific to the GNU + 'getopt'. If OPTS begins with '+', or POSIXLY_CORRECT is set in + the environment, then do not permute arguments. */ + +extern int getopt (int ___argc, char *const *___argv, const char *__shortopts) + __THROW _GL_ARG_NONNULL ((2, 3)); + +#ifndef __need_getopt +extern int getopt_long (int ___argc, char *__getopt_argv_const *___argv, + const char *__shortopts, + const struct option *__longopts, int *__longind) + __THROW _GL_ARG_NONNULL ((2, 3)); +extern int getopt_long_only (int ___argc, char *__getopt_argv_const *___argv, + const char *__shortopts, + const struct option *__longopts, int *__longind) + __THROW _GL_ARG_NONNULL ((2, 3)); + +#endif + +#ifdef __cplusplus +} +#endif + +/* Make sure we later can get all the definitions and declarations. */ +#undef __need_getopt + +#endif /* _@GUARD_PREFIX@_GETOPT_H */ +#endif /* _@GUARD_PREFIX@_GETOPT_H */ -- cgit v1.2.1