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getopt.h

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    Camilla Löwy authored
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    getopt.h 2.09 KiB
    /* Copyright (c) 2012, Kim Gräsman
     * All rights reserved.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions are met:
     *  * Redistributions of source code must retain the above copyright notice,
     *    this list of conditions and the following disclaimer.
     *  * Redistributions in binary form must reproduce the above copyright notice,
     *    this list of conditions and the following disclaimer in the documentation
     *    and/or other materials provided with the distribution.
     *  * Neither the name of Kim Gräsman nor the names of contributors may be used
     *    to endorse or promote products derived from this software without specific
     *    prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
     * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED. IN NO EVENT SHALL KIM GRÄSMAN BE LIABLE FOR ANY DIRECT,
     * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     */
    
    #ifndef INCLUDED_GETOPT_PORT_H
    #define INCLUDED_GETOPT_PORT_H
    
    #if defined(__cplusplus)
    extern "C" {
    #endif
    
    extern const int no_argument;
    extern const int required_argument;
    extern const int optional_argument;
    
    extern char* optarg;
    extern int optind, opterr, optopt;
    
    struct option {
      const char* name;
      int has_arg;
      int* flag;
      int val;
    };
    
    int getopt(int argc, char* const argv[], const char* optstring);
    
    int getopt_long(int argc, char* const argv[],
      const char* optstring, const struct option* longopts, int* longindex);
    
    #if defined(__cplusplus)
    }
    #endif
    
    #endif // INCLUDED_GETOPT_PORT_H