[Cppcms-users] What did I do wrong? (tutorial #3)

[Brian L. <to...@gm...>]

Hey everyone,

I just installed CppCMS on Windows with a MinGW shell. I'm still pretty new
to C++ and am setting up a web server as a learning exercise, but I'm stuck
at tutorial 3. I pretty much copy-pasted all the code -- did I go wrong, or
is there something wrong with my environment?

I'm getting compile errors using g++ (g++ hello.cpp -lcppcms -o hello):

hello.cpp: In constructor, 'hello::hello(cppcms::service&)':
hello.cpp:14:43: error 'number' is not a member of 'hello'
hello.cpp:17:35: error: 'smile' is not a member of 'hello'
hello.cpp:20:29: error: 'welcome' is not a member of 'hello'
hello.cpp: In function 'void number(std::string)':
hello.cpp:39:11: error: 'response' was not declared in this scope
hello.cpp:40:44: error: 'url' was not declared in this scope
hello.cpp: In function 'void smile()':
hello.cpp:44:11: error: 'response' was not declared in this scope
hello.cpp:45:44: error: 'url' was not declared in this scope
hello.cpp:49:11: error: 'response' was not declared in this scope
hello.cpp:51:33: error: 'url' was not declared in this scope



#include <cppcms/application.h>
#include <cppcms/service.h>
#include <cppcms/http_response.h>
#include <cppcms/url_dispatcher.h>
#include <cppcms/url_mapper.h>
#include <cppcms/applications_pool.h>
#include <iostream>
#include <stdlib.h>

class hello : public cppcms::application {
    public:
        hello(cppcms::service &srv)    :
            cppcms::application(srv) {
                dispatcher().assign("/number/(\\d+)",&hello::number,this,1);
                mapper().assign("number","/number/{1}");

                dispatcher().assign("/smile",&hello::smile,this);
                mapper().assign("smile","/smile");

                dispatcher().assign("",&hello::welcome,this);
                mapper().assign("");

                mapper().root("/hello");
            }
        virtual void main(std::string url);
};

void hello::main(std::string url) {
    response().out() <<
        "<html>\n"
        "<body>\n"
        "    <h1>Hello, world!</h1>\n"
        "</body>\n"
        "</html>\n";
}

void number(std::string num) {
    int no = atoi(num.c_str());
    response().out() << "The number is " << no << "<br/>\n";
    response().out() << "<a href='" << url("/") << "'>Go back</a>";
}

void smile() {
    response().out() << ":) <br/>\n";
    response().out() << "<a href='" << url("/") << "'>Go back</a>";
}

void welcome() {
    response().out() <<
        "<h1> Wellcome To Page with links </h1>\n"
        "<a href='" << url("/number",1)  << "'>1</a><br>\n"
        "<a href='" << url("/number",15) << "'>15</a><br>\n"
        "<a href='" << url("/smile") << "' >:)</a><br>\n";
}

int main(int argc, char ** argv) {
    try {
        cppcms::service srv(argc, argv);
        srv.applications_pool().mount (
        cppcms::applications_factory<hello>()
        );
        srv.run();
    }
    catch(std::exception const&e) {
        std::cerr << e.what() << std::endl;
    }
}

Any help would be much appreciated.

Regards,
Brian