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#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <getopt.h>

char* l_opt_test = NULL;

char* const short_options = "abcd:";

struct option long_opts[] =

{

{"atest", 0, NULL, 'a' },

{"btest", 0, NULL, 'b' },

{"ctest", 0, NULL, 'c' },

{ 0, 0, 0, 0 },

};

int parse_opt ( int argc, char* argv[] )

{

int c = 0;

while ( ( c = getopt_long ( argc, argv, short_options, long_opts, NULL ) ) != -1 )

{

switch ( c )

{

case 'a':

printf ( "This is atest\n" );

break;

case 'b':

printf ( "This is btest\n" );

break;

case 'c':

printf ( "This is ctest\n" );

break;

default:

printf ( "arg error!\n" );

return -1;

}

}

return 0;

}

int main ( int argc, char* argv[] )

{

parse_opt ( argc, argv );

return 0;

}