C++ :: Does Not Name A Type
Apr 20, 2014
I have a class named backgroundObstacleManager that I created and another class Pit that have to interact with each other however I'm getting an error.
//backgroundobstacleManager.h
#include "Pit.h"
class backgroundObstacleManager {
public:
backgroundObstacleManager();
void update(sf::RenderWindow *app, Player *Jerry);
[Code] .....
The error is
/media/justin/Linux Data/Programming/C++/jerry and the magic bannana/backgroundObstacleManager.h|34|error: ‘Pit’ does not name a type|
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Apr 27, 2013
I'm having some problems with changing an array of numbers of type char to type int. Every time i try to sum 2 array indexed values it returns some letter or symbol. Also, if i change the type of the array in the functions the compiler gives me an error message. I would also like to add that the problem requires that the first two arrays be char so each individual number gets assigned to a different value.
My current code is:
Code:
#include <iostream>
void input(char a[], char b[], int& size_a, int& size_b);
void convert(char a[], int size);
void reverse(char a[], int size);
void add(char a[], char b[], int c[], int size);
int main()
[Code]....
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Dec 21, 2013
how to convert an element of int type of an array to char type?
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Aug 31, 2014
I have a function like this:
template<typename T>
void f() {
//...
[Code]....
list contains, in order: A, B and C in any order, D, E
I am thinking it is possible with some clever template and polymorphism combos, but maybe not. As a last resort I know how to make it work by storing static type information in each class, but I'd like to avoid that if possible.
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Jul 22, 2013
I need to use the type RectangleF as a built in type in c++ ie I need to declare a variable rect as RectangleF rect;
what do I have to include to be able to do this.
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Oct 12, 2013
Let me put it into the code snippet:
/**
This class build the singleton design pattern.
Here you have full control over construction and deconstruction of the object.
*/
template<class T>
class Singleton
[Code]....
I am getting error at the assertion points when i call to the class as follows:
osgOpenCL::Context *cxt = osgOpenCL::Singleton<osgOpenCL::Context>::getPtr();
I tried commenting assertion statements and then the debugger just exits at the point where getPtr() is called.
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Aug 10, 2014
How to change an enum type variable to a string type variable?
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Mar 7, 2013
I recently came across the issue of not being able to type in my cmd console. I was working on a project in MSV; while starting a new one I was unable to type in the console. *After compiling with no errors.
#include <iostream>
//@author Will A. Training Exercise Grade Programming
int main()
[Code].....
Although in another project I worked on previously I still may type in the console.
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Jun 13, 2013
Q. Consider the following C declaration.
int x[10], y,z;
What kind of error does following statement contain?
z == x +y;
a. Syntax error
b. Semantic error
c. logical error
d. All of the above
According to me it should be option a, but I am confused, how to get confirm answer with explanation.
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Dec 12, 2013
unknownType func( void );
std::vector< /* type of unknownType */ > objects
The source of my question is trying to make a templated button:
template <typename T>
class Button
{
T m_func;
[Code]....
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Apr 20, 2013
it is not possible to get a type from an object, only from a type. Even with auto, you can only instantiate another type of the same type.I'd like to get a type from an object given another type, mainly because it is less typing and less error prone.
Some psudocode:
Type1 A<X, Y> a;
int b;
Type2 a.InnerType<b>::type c; // obviously won't work
A work around I thought of would be to use functions:
Type1 A<X, Y> a;
int b;
auto c = a.getInnerType(b);
Which is kinda interesting and looks like the way I'm going to go. However, I'm just wondering if there is any other ways of doing this as I don't really want to instantiate an object if I can avoid it (though the optimizer will probably just dump it anyway).
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Jul 22, 2013
#include<iostream>
#include<cstdio>
#include<list>
[Code]....
In the last line "graph.edge{x,y,w}" it says typename is not allowed? I have used nested class edge and pushing vertices and their weight in elist vector which is of type edge.
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Nov 7, 2013
I'll just let you look at the code, says the error occurs at line 14.
#ifndef SIMPLE_LOAN_H
#define SIMPLE_LOAN_H
#include<string>
#include "loan.h"
class simple : public loan {
[Code] ....
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Dec 9, 2013
I get this "dll.cpp:12:8: error: 'string' does not name a type EXPORT string name(){"
when i try to compile this
#include <stdint.h>
#include <string.h>
#if defined(WIN32) || defined(_WIN32)
#define EXPORT __declspec(dllexport)
[Code] ....
I am exporting the functions, and I am making a dll.
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Feb 8, 2015
I'm attempting to pass a couple of variables over to my Item.cpp class, that is description and item_price. However under item.set(description,item_price), i get three errors. One under the . (period) saying : expected an identifier and two more under description and item_price stating that variable " xxx " is not a type name.
Main.cpp
#include <iostream>
#include "item.h"
using namespace std;
using namespace items;
int main(){
int n;
[Code] .....
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Jan 3, 2014
While compiling i got this error,
C:UsersDervDesktopCensusQuestsAndAnswers.cpp|25|error: 'string' does not name a type|
I tried fixing it by adding #include <string>, using namespace std and by even using std::string but for some reason, it still gives the error.
Here's the code ^^
#include "QuestsAndAnswers.h"
#include <iostream>
#include <string>
[Code].....
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Jan 28, 2015
I have this main file
date.cpp:
#include <iostream>
#include <ctime>
#include <string>
#include <sstream>
#include <cassert>
#include "date.h"
using namespace std;
Date::Date()
[Code] ....
When I try to compile it gives me this error:
"date.cpp:26:5: error: 'string' in 'class Date' does not name a type
Working on headers and main files..
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Dec 4, 2014
I would like to use my own template type. I have class Fraction that saves fractions, and class Sample(the template class) that arrange fractions in order.
template <typename T> class Sample{
// code
};
class Fraction{
// code
}
main(){
Sample <Fraciton> s; //
return 0
}
but
Sample <Fraciton> s;
does not work. Is there anyway to make this work.
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Jan 21, 2015
I want to create a new data type called an inf_t. It's basically infinity (which for C++ is 1.7e+308). The only reason I want this is because I want to overload the cout << operation to print out INF/inf. Should I do this in a struct?
Code: struct inf_t {
private:
double inf = 1.7e+308;
};
std::ostream& operator << (std::ostream &stream, inf_t inf) {
stream << "INF";
return stream;
}
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Apr 3, 2014
I am making a program that allows you to add two big numbers that are larger then what int can handle together. I think I have done everything to accomplish this but when I try to instantiate the program I get a error Expression must have a class type.
Here is my main file that is supposed to instantiate the program.
Code: #include "stdafx.h"
#include <iostream>
#include <iomanip>
#include <fstream>
#include <string>
#include <conio.h>
#include "LargeIntegers.h"
using namespace std;
[code]....
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Apr 25, 2014
Code:
returnType operatorOperatorSymbol (parameterList); // syntax for operator overloading
Class Fraction
public:
Fraction operator-(const Fraction& f1){
Fraction r;
return r;
}
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
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Aug 28, 2014
I have this int type function that returns a number. It returns the value 2 for now but later it will return more variety of values. How do I use the value it returned? I'm not sure of the proper syntax.
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Feb 26, 2015
understand the below program.
Why I'm getting output y is 6.000000
Code:
#include <stdio.h>
int square(double a);
int main()
[Code].....
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Mar 4, 2014
I want to find the size of the data type with out using sizeof() operator.
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Apr 4, 2013
I want to prevent to type zero as the first digit in value in c code
Code:
char next_buffer[ 5 ];
int frame_counter;
int digit_counter;
memset( cmd->next_buffer, 0, sizeof( cmd->next_buffer ) );
cmd->frame_counter = 0;
cmd->digit_counter = 0; Code: if( arg && isdigit( arg[ 0 ] ) {
[Code].....
this write in text box numbers from keypad for example
5 0 2 4 9
After each typed digit, here is a underscore line waiting for the next to type next digit. I want to prevent users to type zero as the first digit in value.
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Apr 1, 2014
this is what I got so far
Code:
#include <stdio.h>
#include <stdlib.h>
int main() {
[Code].....
he problem is that when I print out the three sums at the end of the program I dont get any decimal points but just zeros like something.00 instead of something.50 etc
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