C++ :: Reference To Column Is Ambiguous
Feb 18, 2014
I'm using GCC 4.8.1 and I want to implement a XML parser using TinyXML and port it to AngelScript
Now, it says: reference to 'Column' is ambiguous
I've declared a class called xml_parser and I've added everything of tinyxml as it's public member when I call Column(), and also Row(), it give's this error. what should I do?
This is it's code:
xml_parser.hpp:
#ifndef AGK_XML_PARSER_H
#define AGK_XML_PARSER_H
#define TIXML_USE_STL
#include <tinyxml.h>
[Code] .....
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Feb 9, 2014
Okay so inside my ArcherArmor.cpp, I'm trying to figure out why the map initializer list isn't working, but for some reason I keep getting "Error C2593: 'operator =' is ambiguous". Here is my code:
I also have a class which ArcherArmor is derived from, that has a struct called `Armor`, which I left out for simplicity. The main problem is that error! The only thing I can think of is that im initializing the map wrong.
//ArcherArmor.h
#include <string>
#include <map>
class ArcherArmor {
private:
map <int, Armor> soldier_armor;
public:
void ArcherArmor_shop();
[Code] .....
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Nov 6, 2013
Code:
void write() {
setlocale(LC_ALL, "en_US.UTF-8");
cout <<"";
}
template <typename A, typename ...B>
void write(string argHead, B... argTail) {
setlocale(LC_ALL, "en_US.UTF-8");
[Code] ....
what I'm doing wrong with my write() function? I did like the read() function(for work diferent with another types) but i get these error:
"C:UsersJoaquimDocumentsCodeBlocksMy Classconsole.h|218|error: call of overloaded 'to_string(char*&)' is ambiguous|"
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May 28, 2013
Here is the error I am getting:
1>d: estprojectgdiplusrenderer.h(61): error C2872: 'Font' : ambiguous symbol
1> could be 'c:program files (x86)microsoft visual studio 10.0vcincludecomdef.h(312) : Font'
1> or 'c:program files (x86)microsoft sdkswindowsv7.0aincludegdiplusheaders.h(244) : Gdiplus::Font'
How can I fix this issue?
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Dec 4, 2013
I need to make a stub for some standard library function, but the compiler gets confused about which function I want to call in my code. I thought that putting the stubbed function together with its caller into an anonymous namespace will give higher precedence to the stub, but it didn't.
Here is an example code:
#include <cstdlib>
#include <cstdio>
#include <cstring>
#include <signal.h>
namespace{
int sigaction(int signum, const struct sigaction * act, struct sigaction * oldact)
[Code] ....
Result:
main.cpp: In function ‘void {anonymous}::test()’:
main.cpp:23:47: error: call of overloaded ‘sigaction(int, sigaction*, NULL)’ is ambiguous
main.cpp:23:47: note: candidates are:
main.cpp:8:5: note: int {anonymous}::sigaction(int, const sigaction*, sigaction*)
In file included from main.cpp:4:0:
/usr/include/signal.h:266:12: note: int sigaction(int, const sigaction*, sigaction*)
It possible to force the compiler to use my stubbed version of sigaction() and if yes, how to do that? I am not allowed to modify test() function.
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May 4, 2013
The compiler keeps on telling me that invalid conversion from wxBitmap* to wxString on the line with the AddTool function, whiles I do not even try to do such an ambiguous typecast.
wxWidgets 2.9.4
MinGW
gdb
Code:
#include "mainwnd.h"
//namespaces
//other definitions and declarations
CMAINWND::CMAINWND(const wxString& szTitle):wxFrame(NULL,wxID_ANY,szTitle) {
wxImage::AddHandler(new wxBMPHandler);
[Code] .....
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Jan 15, 2014
Let's say I have a templated base class:
Code:
template <typename Input>
class Consumer
{
public:
void consume(Input input)
{
// do something
}
};
Now, I have a class which derives from this twice (A and B are unrelated, but otherwise unimportant classes):
Code:
class A;
class B;
class Derived: public Consumer<A>, public Consumer<B>
{
};
Now, elsewhere in the code I do this:
Code:
{
A myA;
Derived myDerived;
myDerived.consume(myA);
}
This looks like it should be simple enough, but g++ 4.8.1 is giving me a "request for member is ambiguous" error.
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Jan 10, 2014
I am working on my project of gesture recognition using c++ and open cv and i am also designing GUI simultaneously. I am using system namespace for GUI part and cv namespace for gestures.
After compiling i am getting error as Ambiguous symbol String is used.
This the link for msdn error support : [URL] .....
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Oct 30, 2013
When compiling the code
#include "tensor.h"
int main() {
Tensor<2,-2> m = {{1,2},{1,3}};
Tensor<2> v = {1,5};
std::cout<<m*v<<"
[Code] ....
Why do I get an ambiguity and why is not the wanted operator*-overload (the last one in the tensor.h file) not even mentioned as one of the candidates? Is it clear what I want to do? And if so, what can I do to make the call unambiguous?
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Feb 23, 2014
I get the following error in XCode whenever I try to access the member I created 'randomGen' in a separate class in a different header file. I have made sure to include the header file and have tried to access it through an object.
This is the code I enter when trying to access the method from randomiser.h in main.cpp. It is also an overloaded function with doubles and integers:
RandomG randomiser;
randomiser.randomGen(); // 'Call to member function 'randomGen' is ambiguous'
This is the code inside randomiser.h:
#include <string>
#include <iostream>
using std::string;
using std::cout;
using std::endl;
class RandomG {
[Code] ....
This is the error inside xcode: [URL] ....
I have tried seperating the code for the functions in another class (main.cpp) and then running and it seems to works, so I'm not sure why I can't put everything in the .h file and then access it?
I would like it in a seperate file so it doesn't clutter my main. I am writing a game with SDL so that might be confusing and I would like the window to have a random title and other random properties, so it would be easier to use a function.
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Mar 1, 2014
i am writing this bank accounts program using structures. i haven't implemented the function before that i want to check if the data is being read and printed. When i build and run the program in visual studio it gives me the following error. "No constructor could take the source type, or constructor overload resolution was ambiguous". Now whats wrong in this program?
/* Bank Accounts Program */
#include <iostream>
#include <string>
#include <fstream>
#include <cstdlib>//needed to use system() function
using namespace std;
const int MAX_NUM = 50;
struct Name{
[code]....
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Apr 11, 2013
For example If I have the following . How would I sum each row and column ??
For example
1 2 3 4 5
0 1 3 8 9
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Jul 3, 2014
Suppose I want to represent an apartment building in terms of floors and rooms with a single data object. Each floor has the same number of rooms at any given time. During the course of the program, I will need to change the number of floors occasionally and will need to change the number of rooms on each floor occasionally. (Don't worry about the building permits needed to do this.) Now, I also want to be able to iterate over either each floor (think "row") or each room (think "column"). For example, I might want to program the equivalent of "Johnson, go fix all the front doors on the 8th floor" or the equivalent of "Johnson, go fix all the front doors to room B on each floor". (Yeah, I know, for the latter I could iterate over each floor and then access room B but that doesn't feel as "clean" as being able to iterate over a separate room/column.)
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Dec 16, 2013
If i have current index and row/columns count how do i get on which row and on which column index is individually?
This is what i have tried, but column index is incorrect:
#include <iostream>
int main()
{
int rows = 5;
int colm = 6;
int inx = 12;
int rowInx = inx % rows;
int colInx = inx % colm;
std::cout << "row: " << rowInx << std::endl;
std::cout << "col: " << colInx << std::endl;
return 0;
}
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Jul 31, 2014
Suppose I want to represent an apartment building in terms of floors and rooms with a single data object. Each floor has the same number of rooms at any given time. During the course of the program, I will need to change the number of floors occasionally and will need to change the number of rooms on each floor occasionally. (Don't worry about the building permits needed to do this.)
Now, I also want to be able to iterate over either each floor (think "row") or each room (think "column"). For example, I might want to program the equivalent of "Johnson, go fix all the front doors on the 8th floor" or the equivalent of "Johnson, go fix all the front doors to room B on each floor". (Yeah, I know, for the latter I could iterate over each floor and then access room B but that doesn't feel as "clean" as being able to iterate over a separate room/column.)
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Oct 18, 2013
I have a 2d array where I manage donations and requests for different foods. I output a menu to the user who picks the options to either make a donation, make a request, fulfill a request, or print a status report of all the donations and requests. What I'm having trouble with is the fulfilling requests option. When the user picks fulfill requests that means that the donations are supposed to be subtracted from the requests. For example if there are 10 donations for grains and 15 requests for grains then after picking fulfill request there should be 0 donations for grains and 5 requests for grains but I don't know how to make the program do that since the values are in a 5 row by 2 column array. The five rows correspond to the five foods and the two columns correspond to donations and requests, respectively. Here's my code so far. Just disregard everything but the third case.
Code:
#include <stdio.h>int main(){
int foodbank[5][2]= {
{0,0},
{0,0},
[Code]....
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Oct 24, 2013
i have a matrix containing a lot of points and each point has its coordinates x and y. That is a nx2 size array. I want to sort it according to the first column ascending, with x coordinates. For points that have the same x coord i would like to sort according to y coord. Here is what i did and i cannot get a good result.
Code:
#include <stdio.h>
#include <stdlib.h>
int main(){
int a[5][2] = {{1,0}, {4,2}, {2,4}, {8,6},{4,8}};
int temp=0;
int i=0;
int j=0;
[Code]...
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Apr 6, 2013
I need sorting a particular column (column 1) of a .cvs file (the file has 10 columns) by alphabetic order. How I can accomplish this ?
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Feb 21, 2014
void calcWeeklyPay(double empData[][COLS], const int count) {
double wage;
double hour;
int row;
for (row = 0 ; row < count; row++); {
hour = empData[row][0];
wage = empData[row][1];
[Code] ....
I'm really stuck on this problem...Why is it in my salary column all it outputs its 0? How would i fix this ?
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Jul 11, 2013
I suppose to have the following matrix
A). I want to remove a generic row and column. For instance the second row and column, then I get
B). How can I realize it in C?How to do.
A) B)
a00 a01 a02
a00 a02
a10 a11 a12a20 a22
a20 a21 a22
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Oct 2, 2014
I have .db3 file, and he has 14 tables,and every table has certain number of columns. Example i have table called "BASIC_INFO" and that table has columns "First Name", "Last Name" and "Age".
How can i get name of table and name of every column,so if i some day add column "Male" i get name of this column too. I need first to calculate number of columns,put that in some integer, and then for example create string array which will contain : array[0] = "First Name" ,array[1] = "Last Name"...
SQLiteConnection myConn = new SQLiteConnection("Data Source=" + DB3Path + ";Version=3;New=False;Compress=True;");
//string query = "Select * From " + DB3Path + ".INFORMATION_SCHEMA.COLUMNS";
string query = "Select * From BASIC_INFO.INFORMATION_SCHEMA.COLUMNS;";
SQLiteCommand sqCommand = new SQLiteCommand(query);
[Code] ....
I tried this too:
string query = "select * from INFORMATION_SCHEMA.COLUMNS"
+ "where TABLE_Name='BASIC_INFO'"
+ "order by ORDINAL_POSITION;";
string query = "SELECT TOP 0 * FROM BASIC_INFO";
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Oct 18, 2014
I am writing a code in which i need to grab a column from a variety of tables. So basically there are 10 tables in which they hey have the same columns inside of them (Submitted and Amount). I need to grab the amount column from all the tables. What would be the c# sql command for that.
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Oct 7, 2014
I have question regarding Gridview.
Can i set each column in Gridview with different Datasource ? for example I create Gridview with 3 column , can I set each column with different datasource ?
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Apr 24, 2014
I cannot check the checkbox in my datagridview.
Here is my code.
First, I added a checkbox column.
private void addCheckBoxColumn() {
DataGridViewCheckBoxColumn checkColumn = new DataGridViewCheckBoxColumn();
checkColumn.Name = "clmCheck";
checkColumn.HeaderText = "";
checkColumn.Width = 100;
checkColumn.ReadOnly = false;
dgv1.Columns.Add(checkC
[Code] ....
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Oct 19, 2014
When I try to link combobox with sql column i get error !!
void comfunction() {
string constring = "Data Source=LC-VAIO\SQLEXPRESS;Initial Catalog=sample1;Integrated Security=True";
string query = "select * from tbltest";
SqlConnection cn = new SqlConnection(constring);
SqlCommand cmd = new SqlCommand(query,cn);
SqlDataReader dreader;
[Code] ....
I got error from "string sname = dreader.GetString("name"); "
And this how i try to link it...
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Nov 23, 2012
You have two array and you want to replace the column of one of them to the row of another?
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