Xcode C++ "Use of undeclared identifier" error with another class -


i've done reading on site here undeclared identifier errors in xcode , c++. seems comes small typo somewhere in code, can't figure out life of me why i'm getting error (also please note beginner in c++, may making dumb mistake).

i'm writing own library artificial neural nets, , when try compile 'connection' class bunch of "use of undeclared identifier 'node'" error on every line in connection.h file has node class somewhere in it. classes node , connection in same namespace, , both cpp files implemented functions declared in header files. here header files both classes:

connection.h (where i'm having problems):

#include <iostream> #include <tuple> #include <boost/shared_ptr.hpp> #include "node.h"   namespace ann{     class connection{        public:          connection();         connection(boost::shared_ptr<node> innode, boost::shared_ptr<node> outnode, float weight, int connid);         ~connection();          virtual boost::shared_ptr<node> getinputnode();         virtual boost::shared_ptr<node> getoutputnode();         virtual void setinputnode(boost::shared_ptr<node> innode);         virtual void setoutputnode(boost::shared_ptr<node> outnode);         virtual float getconnectionweight();         virtual void setconnectionweight(float weight);          virtual int getconnectionid();         virtual void setconnectionid(int id);      protected:          std::tuple<boost::shared_ptr<node> , boost::shared_ptr<node> , float> connection;         int connectionid;      private:       }; }

in addition, i'm getting other errors in line have protected connection variable declared. i'm getting "parse issue : expected type" , "parse issue : expected member name or ';' after declaration specifiers".

here node.h:

#include <iostream> #include <vector> #include <boost/shared_ptr.hpp> #include "activationfunction.h" #include "connection.h"    namespace ann{      class node{        public:          enum{             input = 0,             hidden = 1,             output = 2         }kannnodetypes;          node(int num, int nodetype);         ~node();          virtual void addoutputconnection(boost::shared_ptr<connection> outputconnection);          virtual void activatenode(activationfunction* activationobject);         virtual void addinputsignalfromincomingnode(float inputsignal, float connectionweight);         virtual int getnodetype();         virtual int getnodenum();         virtual void loadinputassensorinput(float input);         virtual bool isactivated();         virtual bool isallinputsreceived();         virtual float getlatestoutput();         virtual void resetnode();         virtual void sendoutputtooutputnodes();         virtual void setnumberofinputconnections(int nc);         virtual int getnumberofinputconnections();      protected:            int nodenum;         int nodetype;         int ninputconnections;         int inputconnectioncount;         float latestoutput;         bool activated;         float inputsignal;         bool allinputsreceived;         std::vector<float> outputweights;         std::vector<boost::shared_ptr<node>> outputconnections;           private:       }; }


Comments

Post a Comment

Popular posts from this blog

commonjs - How to write a typescript definition file for a node module that exports a function? -

consider, toml node module can use: // toml.d.ts declare module toml { export function parse(value:string):any; } declare module "toml" { export = toml; } then: /// <reference path="../../../../../defs/toml/toml.d.ts"/> import toml = require('toml'); toml.parse(...); however, node module export single function, such 'glob' ( https://github.com/isaacs/node-glob ). the node usage of module be: var glob = require("glob") glob("*.js", {}, callback(err, files) { ... }); you'd naively expect this: // glob.d.ts declare function globs(paths:string, options:any, callback:{(err:any, files:string[]):void; ...but because typescripts 'import' semantics bit strange, seems can use 'import .. = require()' statement alias modules . trying call: /// <reference path="../../../../../defs/glob/glob.d.ts"/> import blog = require('glob'); results in: error ts2072: mod...
Read more

openid - Okta: Failed to get authorization code through API call -

i'm integrating okta own idp server using okta's api. i'm implementing authorization code flow following steps below: in own server, use /api/v1/authn endpoint sessiontoken. use sessiontoken obtain authorization calling endpoint: /oauth2/v1/authorize?client_id=" + clientid + "&sessiontoken=" + sessiontoken + "&response_type=code&response_mode=query&scope=openid&redirect_uri=" + redirecturl + "&state=evanyang&nonce=" it's supposed return response status code 302 , location header containing redirect url code value. however, keep getting response status code 200 , without location header, html body saying "you using unsupported browser." , "javascript disabled on browser." according api documentation: http://developer.okta.com/docs/api/resources/oidc.html#authentication-request , sessiontoken parameter sufficient this: an okta one-time sessiontoken. allows api-based ...
Read more

ios - Change Storyboard View using Seague -

i have following code checks connection server, , depending on want change views if no connection found. nsstring *connect = [nsstring stringwithcontentsofurl:[nsurl urlwithstring:@"http://myserver.com"] encoding:nsutf8stringencoding error:nil]; if (connect == null) { [self performseguewithidentifier:@"network_failure" sender:self]; } else { // other code here } my problem not change views. have added storyboard segue between 2 views identifier of network_failure . not have navigation controller or that, problem? thanks help! no not problem. first of all, in objectivec exists nil object oriented null . must use that. so: if(connect == nil) or better: if(!connect) so due fact nil not same of null , probably code does't enter in if scope . you have been able discover breakpoint. anyway: be sure set trigger segue (line) 2 view controller , , name network_failure (that not best name. should instead view1toview2 ) as, m...
Read more