C++ :: Returning A Structure As Function Return Type
Apr 4, 2013
I am having problems with my function definition of a function that should return a structure value.
This is the error I get compute.cpp(9): error C2146: syntax error : missing ';' before identifier 's_advertisebus'
The error is on the line where I start my function definition typing my function type as a structure. A long time ago in c the keyword struct is used with the structure type like struct s_advertisebus s_readadbus(). I tried it both ways but I got errors.
// struct.h
#ifndef STRUCT_H
#define STRUCT_H
struct s_advertisebus {
int nnumberofads;
float fpercentused;
I am writing a class Player which has several char arrays as private fields. I am trying to write a method which returns an array as a pointer, but doesn't alter the array in any way, thus the const.
Here is a snippet:
Code: class Player { private: char state[MAX_STATE_CHAR + ONE_VALUE]; int rating; char last[MAX_NAME_CHAR + ONE_VALUE]; char first[MAX_NAME_CHAR + ONE_VALUE]; int groupNumber = NEG_ONE; public: char * GetFirst() const { return first; }
Visual studio is saying that the return type doesn't match.
If we are using strcpy() for copying the string. As we are passing pointers to it It will copy the string & no need to return the string .This function will finely work with return type as void then why Ritchie has used it as char* strcpy()?
test.cpp: In function ‘int main()’: test.cpp:20:30: error: no matching function for call to ‘func1(std::vector<int>&)’ test.cpp:20:30: note: candidate is: test.cpp:8:45: note: template<class T, class U> std::map<T, T> func1(U) test.cpp:8:45: note: template argument deduction/substitution failed: test.cpp:20:30: note: couldn't deduce template parameter ‘T’
i cant seem to get the program to return the right grade it keeps returning 0 or 1. i want the program to return true for grades grades greater then or equal to 70 but cant find the right formula to put in the bool(). what formula should i put?
Ive been getting an odd error with this code when I try to compile it, as well as Im not quite sure as how to return my variable "compType" as a char type.
Main #include <iostream> #include "Shape.h" #include <iomanip> #include <cmath>
Okay, I've been working on this Texture class that's going to be compatible with both SDL and OpenGL with the capability to create an array of textures within one class as opposed to multiple classes and such.
Now I've run into a slight issue if I want to return the value of a texture. There's two different types of textures: SDL_Texture, and a standard GLuint Texture. The problem I have is that one or the other is used, not both which is depending on whether or not the person is using OpenGL.
So when the user wants to get the texture, I need the ability to return either an SDL_Texture, or GLuint depending on whether or not OpenGL is being used.
I tried this with a template class, but it didn't work, but I'll post the code so you can see what I'm trying to do.
It basically just comes down to the last four lines of code. If the person is Using OpenGL return a GLuint, if the person is using SDL, return an SDL_Texture.
I would prefer to have the GetTexture function to be one function instead of two separate ones so I don't have to call a different function every time to check if I'm using SDL or OpenGL.
I'm writing some functions pertaining to binary trees. I've used recursion once before while learning quicksort but am still quite new and unfamiliar with it. And this is my first time touching a binary tree. So my question: In my addnode function, will the return root statement at the end ever return a value other than the value passed to the function?
I have to enter the Instructor ID and invokes getFees to find the fees of the given instructor. Then it will displays the message that shows either the fees or "No such instructor ID" if not found. the function prototype is
double.getProfessionFees(string); #include <iostream> using namespace std; const int DECLARED_SIZE = 7; int search(const int a[], int number_used, int target); struct InstructorType
Is this even syntactically correct? It gives me errors. Im just trying to compile it without errors. I think the function makes sense since its returning a type Class
What i'm trying to create is a simple State Manager for SFML! I created another class that inherits State.
#pragma once #include "state.h" class FirstState : public State { public: FirstState(); ~FirstState(); void handle_action(); void update(); void render(); };
So the question is this, each state that i have will inherit the State class. However, i wanted to perhaps add each state object into a vector array. But i'm not sure as to what data type it be? I have a state manager class that will contain the vector.
What i want to do is this, each game state will create an object that will inherit functions from the state.h class. I want to store them all in a vector array, but each object is clearly named different. My curiosity was wondering, since all those different states inherit the State.h class, can i simply create a State Object std::vector<State> *states; that will contain all those different state objects?
I am new to c++ and trying to learn. for instance. i have a struct and method.I am trying to learn what i can do with the method if i define the return type as struct type.
struct S { int age; string name; }; S method() { //what i can do in here. with the Struct. I mean can i reach members of the struct. etc }
I am wondering why return type for an assignment operator cant be a void or int? Cant I write assignment operator for student class like this as we do nothing with returned value?
Student { char name[20]; int marks; public: student(char*name,int marks)
struct Wine { string wineName; int vintage; int rating; double price; };
how can i store the file data below in an array with the structure type???
Dow Vintage Port ;2011;99;82 Mollydooker Shiraz Carnival of Love ;2012;95;75 Prats & Symington Douro Chryseia ;2011;97;55 Quinta do Vale Meão Douro ;2011;97;76 Leeuwin Chardonnay River Art Series ;2011;96;89
