argtable_example_minus.c

#include <argtable3.h>

int main(int argc, char **argv)
{
    static struct {
        struct arg_str *key; 
        struct arg_str *value;
        struct arg_end *end;
    } setArgs;

    setArgs.key = arg_str1(NULL, NULL, "<key>", "Key to update");
    setArgs.value = arg_str1(NULL, NULL, "<value>", "Value to set");
    setArgs.end = arg_end(2);

    int nerrors = arg_parse(argc, argv, (void**)&setArgs);

    if (nerrors > 0) {
        arg_print_errors(stdout, setArgs.end, argv[0]);
        return 1;
    }

    if (setArgs.key->count > 0 && setArgs.value->count > 0) {
        printf("key: %s value: %s\n", setArgs.key->sval[0], setArgs.value->sval[0]);
    }
    return 0;
}