{"id":2892,"date":"2010-09-11T23:23:48","date_gmt":"2010-09-11T17:53:48","guid":{"rendered":"http:\/\/www.jeffrin.in\/?p=2892"},"modified":"2010-09-11T23:23:48","modified_gmt":"2010-09-11T17:53:48","slug":"struct-keyword","status":"publish","type":"post","link":"https:\/\/www.trueangle.org\/index.php\/2010\/09\/11\/struct-keyword\/","title":{"rendered":"struct keyword and getopt_long"},"content":{"rendered":"

\"\"<\/a><\/p>\n

\nThe  getopt() function parses the command-line arguments.  Its\narguments argc and argv are the argument count and\narray as passed to the main() function on program invocation.\nAn element of argv that starts with  '-'  (and  is not  exactly\n\"-\" or \"--\") is an option element.  The characters of this\nelement (aside from the initial '-') are option characters.\nIf getopt() is called repeatedly, it returns successively each\nof the option characters  from each of the option elements.\n<\/pre>\n
\nlongopts is a pointer to the first element of an array of struct option\ndeclared in <getopt.h> as\n\n           struct option {\n               const char *name;\n               int         has_arg;\n               int        *flag;\n               int         val;\n           };\n\n<\/pre>\n
 Example Code <\/h5>\n

\n static const struct option long_options[] =
\n        {
\n                {\"domain\", no_argument, 0, 'd'},
\n                {\"boot\", no_argument, 0, 'b'},
\n                {\"file\", required_argument, 0, 'F'},
\n                {\"fqdn\", no_argument, 0, 'f'},
\n                {\"all-fqdns\", no_argument, 0, 'A'},
\n                {\"help\", no_argument, 0, 'h'},
\n                {\"long\", no_argument, 0, 'f'},
\n                {\"short\", no_argument, 0, 's'},
\n                {\"version\", no_argument, 0, 'V'},
\n                {\"verbose\", no_argument, 0, 'v'},
\n                {\"alias\", no_argument, 0, 'a'},
\n                {\"ip-address\", no_argument, 0, 'i'},
\n                {\"all-ip-addresses\", no_argument, 0, 'I'},
\n                {\"nis\", no_argument, 0, 'y'},
\n                {\"yp\", no_argument, 0, 'y'},
\n                {0, 0, 0, 0}
\n        };<\/p>\n
<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"
The getopt() function parses the command-line arguments. Its arguments argc and argv are the argument count and array as passed to the main() function on program invocation. An element of argv that starts with ‘-‘ (and is not exactly “-” or “–“) is an option element. The characters of this element (aside from the initial … <\/p>\n
Continue reading “struct keyword and getopt_long”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[514,995,1005,1313,1505],"_links":{"self":[{"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/posts\/2892"}],"collection":[{"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/comments?post=2892"}],"version-history":[{"count":0,"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/posts\/2892\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/media?parent=2892"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/categories?post=2892"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/tags?post=2892"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}