c++ - Need help can't figure out why my header file function declarations won't work -

-

cant figure out code. how make piggybank& header work add functions in cpp file?

gives me error:

error 6 error c2040: 'piggybank::adddimes' : 'void (int)' differs in levels of indirection 'piggybank &(int)' h:\cosc1030\homework09\homework09\piggybank.cpp 36 1 homework09

#ifndef piggybank_h #define piggybank_h  #include <iostream> using std::cout; using std::endl; class piggybank { public: piggybank(int pennies, int nickels, int dimes, int quarters);  // return number of coins in bank int getpenniescount() const; int getnickelscount() const; int getdimescount() const; int getquarterscount() const;  // add coins bank piggybank& addpennies(int p); piggybank& addnickels(int n); piggybank& adddimes(int d); piggybank& addquarters(int q);   // withdraw coins bank, return number withdrawn int withdrawpennies(int p); int withdrawnickels(int n); int withdrawdimes(int d); int withdrawquarters(int q);  void displaybalance() const; void breakthebank(); // display balance cash out (all counts            zeroed). private: int pennies; int nickels;  int dimes; int quarters; }; #endif   #include "piggybank.h" piggybank::piggybank(int pennies, int nickels, int dimes, int quarters) { addpennies(pennies); addnickels(nickels); adddimes(dimes); addquarters(quarters); }  int piggybank::getpenniescount() const { return pennies; } int piggybank::getnickelscount() const { return nickels; } int piggybank::getdimescount() const { return dimes; } int piggybank::getquarterscount() const { return quarters; }  void  piggybank::addpennies(int p) {     pennies = (p >= 0) ? p : 0; } void  piggybank::addnickels(int n) {     nickels = (n >= 0) ? n : 0; } void  piggybank::adddimes(int d) {     dimes = (d >= 0) ? d : 0; } void  piggybank::addquarters(int q) {     quarters = (q >= 0) ? q : 0; }

the header piggybank& adddimes(int d); provided,
you'll need change void in implementation piggybank&.

what should returned same object of adddimes called,
ie. this. this pointer, return *this;.

maybe wonder for: can write things 

functionwhichtakesapiggybank(mypiggybank.adddimes(1)); //one line  mypiggybank.adddimes(1).adddimes(1).adddimes(1); //chaining

etc.


Comments

Post a Comment

Popular posts from this blog

matlab - error with cyclic autocorrelation function -

-
Image
i'm trying code cyclic autocorrelation function in matlab follows: t=0:(n-1); t=t*te; i_alpha=0; tau=-n2*te:te:n2*te; alpha=-1/2:1/n:1/2; ryy_cl=zeros(length(alpha),length(tau)); alpha=alpha/te ind_tau=0; i_alpha=i_alpha+1; k=tau ind_tau=ind_tau+1; if k>0 % ryy_cl(i_alpha,ind_tau)=1/length(sig_bin_syl_mod(1:end- k))*sum((sig_bin_syl_mod(1:end-k)).*sig_bin_syl_mod(k+1:end)).*exp(1i*2*pi*alpha*t(1+k:length(sig_bin_syl_mod(1:end)))); ryy_cl(i_alpha,ind_tau)=(1/n)*sum((sig_bin_syl_mod(1:end-k)).*sig_bin_syl_mod(k+1:end)).*exp(-1i*2*pi*alpha*t(1:end-k)); else ryy_cl(i_alpha,ind_tau)=(1/n)*sum((sig_bin_syl_mod(1-k:end)).*sig_bin_syl_mod(1:end+k)).*exp(-1i*2*pi*alpha*t(1-k:end)); end end end i'm getting errors, , doesn't show expecting. according below formulae, how can fix it? the code provided incomplete, difficult confidently reproduce error. in particular, haven't de...
Read more

django - (fields.E300) Field defines a relation with model 'AbstractEmailUser' which is either not installed, or is abstract -

-
i trying create customuser django project email username , add radio button truck , company. in registration process email-id registered per truck or company. mentioned radio button 'tag' , add manytomany field tag in emailuser model. when makemigrations, raising error : (fields.e300) field defines relation model 'abstractemailuser' either not installed, or abstract. i quite new django , not sure whether have created correct code wants. please me solving this. here code, models.py: import django django.contrib.auth.models import ( abstractbaseuser, baseusermanager, permissionsmixin) django.core.mail import send_mail django.db import models django.utils import timezone django.utils.translation import ugettext_lazy _ class emailusermanager(baseusermanager): """custom manager emailuser.""" def _create_user(self, email, password, is_staff, is_superuser, **extra_fields): """create , save emailus...
Read more

c# - What is a good .Net RefEdit control to use with ExcelDna? -

-
i using exceldna , c# build suite of tools. part of forms i'd want user select cells/ranges workbook. i've got application.inputbox route working...but doesn't cool... i haven't read many things excel's refedit control, , see many have in past written workarounds, in (shudder) vba or vb.net. however, none of these seem recent... best approach/control refedit functionality on form run via exceldna (if applicable)? the refedit sample project of github explores different ways of dealing threading when showing form excel add-in, main issue making refedit control .net add-in. check page links various other implementations: https://github.com/excel-dna/exceldna/wiki/links-about-refedit
Read more