C++ :: Calling Function Address - Too Many Arguments For Call Error

Nov 25, 2014

In C you can just load and call the address of a function without defining its arguments like this:

Code: int (__stdcall *pMessageBox)();
int main() {
HMODULE h=0;
h = LoadLibrary("user32.dll");
pMessageBox = GetProcAddress(h, "MessageBoxA");
// MessageBoxA
pMessageBox(0, "MessageBoxA has been called!", "MessageBox Example", MB_OK);
return 0;
}

In C++ the same code gives "too many arguments for call" error unless you define the function first with its parameters.

Is there a way to do it the same way in C++?

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Visual C++ :: Error C3867 Function Call Missing Argument List For Calling Thread Function

Mar 19, 2013

I searched the web for error: C3867... and the discussions where murky or obscure.

My code excerpt is:

#pragma once
#include <windows.h>
#include <stdlib.h>
#include <process.h>
void PutUpfrmIO(void *);
namespace WordParsor {

[Code] .....

I get the generic message:

error C3867: 'WordParsor::Form1::PutUpfrmIO': function call missing argument list; use '&WordParsor::Form1::PutUpfrmIO' to create a pointer to memberc:userskingc++wordparsorwordparsorForm1.h... and the suggestion fix generate another error.

One person suggested the gcroot<> object wrapper... but I do not know how to modify/declair the function or its argument type.

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C++ :: Left Over Arguments When Calling Function Pointers

May 5, 2014

Say I have a function pointer with this definition:

void ( *pressFunc ) ( void*, void* );

And i did this function:

void functionWithOneArg ( void* testPtr );

And i did this

pressFunc = &functionWithOneArg;

One. Would C actually let me do this? ( Assigning a function with one argument to a function with two )

Two. If so, what would happen to the second argument that is passed the function when its called? Does it just get 'cut off' and only the first argument is passed?

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C :: How To Call Function With Correct Arguments

Sep 13, 2013

I'm not a programmer, at least, not a good one. I'm a researcher and I need to implement this function and test it and use it for my research. I tested some clustering methods in JAVA and Matlab and also I want to test it on C. I don't know too much about programming, especially about C, I know nothing. I tried to implement some basic methods but I failed.

It's all about K-Means Algorithm. I'm working on a disease and I'm trying to find ways to early diagnosis. Anyway, these are details. The thing is, I found a 'free to use' function but I don't know how can I use it. I tried to learn something from Net, I downloaded a compiler, I paste the code and I get many errors... And I heard that I have to do some "calling function" stuff but I don't know how to..

The code is in the link below: URL....It's not imperative that using this function, it can be another one but it had to written in C.

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C++ :: Call Function With Arguments From Java

Sep 19, 2013

I am working on a project in a group at a university. We are creating a GUI in Java where the user can enter parameters. Then we want to be able to pass these parameters to a function inside our C/C++ program, that does the rest. How do I do this? So far I have managed to call a simple helloworld-function by using JNI, dll and a javah tool that create a header file from a java file. I define the helloworld-function in C and call it from Java.

Java file:

package helloworld;
public class HelloWorld {
private native void print();
public static void main(String[] args) {

[Code] ....

My problem is that I do not know how to call the helloworld-function with parameters. I guess that this is a special case when using JNI and a . dll. How do I pass simple char- and int-arguments from the Java class to the helloworld-C-function?

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C++ :: How To Call A Function With Multiple Pointer Arguments

Nov 3, 2013

In my code, I have a function like such: int function1(int* a, int* b). I am wondering how to call it in int main.

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C++ :: Calling Constructor Inside Another One (No Matching Function To Call)

Nov 7, 2013

I've written an Array class to create 1d,2d and 3d array and it works fine for every test : example of the constructor of the array class for 2d case:

Array::Array( int xSize, int ySize ) {
xSize_ = xSize;
ySize_ = ySize;
zSize_ = 1;
vec.resize(xSize*ySize);
}

It works fine , but when i need to use this constructor inside of other constructor, i get the "no matching function error" ,
part of my code:

class StaggeredGrid {
public:
StaggeredGrid ( int xSize1, int ySize1, real dx, real dy ) : p_ (2,2) {}

[Code] .....

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C++ :: Parsing Command Line Arguments And Function Call Queue

Jun 12, 2014

I am trying to create program which will process command line arguments and define which functions should be run, with specific order and specific arguments. This is my first problem:

Code:
// proccessing_args.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include <vector>
#include <string>
#include <iostream>
#include <conio.h>
using namespace std;
int _tmain(int argc, _TCHAR* argv[])

[Code] ....

proccessing_argsproccessing_args.cpp(20): error C2143: syntax error : missing ',' before ':'

refers to the line with for. I copied the code form here [URL] .....

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C++ :: Passing Arguments From Incompatible Pointer Type - Warning In Function Call Transpose In Main Routine

Jun 4, 2013

#include <stdio.h>
#include <stdlib.h>
int size_b_row1;
int size_b_col1;
int main(void) {
double C[4][4] = {{1,3,5,2},{7,6,2,2},{1,2,7,3},{2,3,5,3}};
double TC[4][4];
transpose(C, TC);

[Code] ......

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C++ :: 0xC0000005 Error When Calling A Function

Sep 12, 2013

I'm new to C/C++. I'm trying to make a program that's going to use the CBLAS libraries that I downloaded on BLAS. After fighting tooth and nail with VC 2005 (I downgraded on purpose because at one point I was desperate.) with regards to solving compilation errors and such and eventually it all compiled just fine.

The problem now is, I get the above mentioned error. It says: "Unhandled exception at 0x0040271c in Try.exe: 0xC0000005: Access violation reading location 0x4e18feb8."

Now there are a few .cpp files (I'm compiling as C code.) which contain the functions and there is one other one which contains my main method. Using the debugger, it goes through 3 files all in all.

The main file: Code: /* cblas_example2.c */

#include <stdio.h>
#include <stdlib.h>
#include "cblas.h"
#include "cblas_f77.h"

[Code] .....

I get the above-mentioned exception in the last line, or:

Code: cblas_dgemm( UNDEFINED, transa, transb, *m, *n, *k, *alpha, a, *lda, b, *ldb, *beta, c, *ldc );

The debugger tells me what the address in the exception is the address if *ldc.

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C++ :: Error - Statement Cannot Resolve Address Of Overloaded Function

Nov 2, 2013

I can't seem to figure out whats causing this error: statement cannot resolve address of overloaded function . Error is before line 14 in bubblesortrand function. Thnx in advance.

void bubblesort(int num[], int a_size)
{
int i, j, temp;
for(i = (a_size - 1); i >= 0; i--)

[Code].....

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C++ :: Syntax Error In Function Call - Type Mismatch In Parameter In Function Sort

Jul 6, 2014

error says "cannot convert 'int*' to 'int' in function main()
and also
type mismatch in parameter in function sort(int,int)

Heres the code:
#include<iostream.h>
#include<conio.h>
void main() {
void sort(int,int);
clrscr();

[Code] .....

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C++ :: Calling Dynamically Loaded Function From DLL Destruction Error?

Apr 18, 2013

I have two projects (Projects A and B). Project A is a dll project, defining a function called "regex".

Project B dynamically loads this DLL, and calls Project A's "regex" function via LoadLibrary/GetProcAddress.

Regex takes a pointer to an std::vector (std::vector<std::cmatch>).

When debugging ProjectB, I can see that, within the code from ProjectA (in the "regex" call), a loop that loops through the elements of the vector outputs all the elements in the vector to console as expected. But the loop in ProjectB ( which executes after ProjectA), which also loops through the vector, and, is supposed to output the elements of the vector, outputs empty strings, not, as I would expect, the same strings (which contain results), as in the loop in Project A.

How is this happening. Does this have anything to do with it being a DLL, and, maybe, somehow values/memory addresses (or something similar) of the vector/its elements being destructed across the Projects/Dlls?

Output and Code See Below:

Output Loop in A:

Un
Un

Output Loop in B: (empty) (i.e. none)

Project A DLL Header (interface.h):

#include "stdafx.h"
#include <vector>
#include <regex>
extern "C" {__declspec(dllexport) int __cdecl regex(std::string target,std::string rgx, std::vector<std::cmatch*>* matches);}

[Code].....

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Visual C++ :: Error C2664 - Two Shown Function Arguments Are Different

Apr 24, 2013

Why the two shown func args are different?

struct MyFileClass {
.....other code
void MyFileOut( TCHAR* pS, DWORD pVar) {
TCHAR PrntStrg1[] = _T("The value of passed ptr->");

[Code] ....

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C++ :: Error / No Matching Function For Call

Dec 14, 2013

This code from [URL] as it is gives compile error I can't understand.

#include <iostream>
using namespace std;
class Rectangle {
int width, height;

[Code] ....

Gives error

(g++ first.cpp)
first.cpp: In function ‘int main()’:
first.cpp:14:38: error: no matching function for call to ‘Rectangle::Rectangle(<brace-enclosed initialiser list>)’

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C/C++ :: Error C2064 / Term Does Not Evaluate To A Function Taking 1 Arguments

Aug 7, 2014

i'm implementing a templated function callback.

I get this error:

"error C2064: term does not evaluate to a function taking 1 arguments"

I'm not sure why.

Here's the code for the template function in the timer class header:

template<class T>
void TimerEvent(DateAndTime DateTime, std::function<void(T)> Callback);

Now the class body:

template<class T>
void GameTimer::TimerEvent(DateAndTime DateTime, std::function<void(T)> Callback)
{
DateAndTime time;
time.Now(false);
if (time.Compare(DateTime) == 1)
Callback(T);
}

and calling the class in the Engine:

int test1(int a)
{
}
void Main()
{
gameTime.TimerEvent<int>(gh, test1(1));
}

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C++ :: Quantlib / Error C2064 - Term Does Not Evaluate To A Function Taking 1 Arguments

Dec 8, 2014

The first call of my function works with empty vectors but fails when dimensions are introduced to the vectors.

When "uncommented, the commented out function call fails with the error above.

These links might be useful for those unfamiliar to QuantLib:

[URL]

QuantLib: GeneralLinearLeastSquares Class Reference

Code:
#include "stdafx.h"
#include "boost/multi_array.hpp"
#include <cassert>
#include <qlmathgenerallinearleastsquares.hpp>
#include <vector>
#include <list>
#include <iostream>
#include "boostlambdalambda.hpp"

[code]....

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C++ :: Error Message On Compiling - No Matching Function For Call To?

Nov 8, 2014

Every time I try to compile this, I get the error message, "error: no matching function for call to" on lines 18, 45, and 46. Basically every time I try to call on the function sales and printStock. I don't know what the message means or why I get it.

#include <iostream>
#include <fstream>
#define N 10
using namespace std;

void printStock (float [], int);
float sales (float [], int);

[Code] .....

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C :: Calling Functions With Arguments Using Pointer Variables As Operators

Feb 2, 2013

There are, or course, better ways to do this, but I need to stick to some rules:

(1) Use only pointer variables and not arrays or structs.
(2) Use the three functions shown--regardless of easier methods.

The program should ask for some input, operate on those numbers, and then display the results. I know I am confused over these things:

(1) All that syntax using '*' and '&' or neither.
(2) How to use the char type correctly.
(3) How to use a char type input as an operator (a + b).
(4) How to use the pointer of the operator variable (+,-,*,/) in an actual equation.

Code:
#include <stdio.h>
#include <stdlib.h>
// *** Prototype Functions ***
void Post_Results (float*);
void Calculate (float*, float*, char*, float*);
void Get_Numbers (float*, char*, float*);

[Code]......

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C++ :: Using Static Method To Check Arguments Before Calling Constructor?

Mar 1, 2013

I would like to avoid throwing things in constructors as much as possible.

Is this good design to have a static class method that checks arguments the caller will give to the constructor. The documentation of the class will say, thou shall call this method to validate thine arguments before calling the constructor, or else segfault may befall thoust.

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C++ :: What Is Function Call Overhead And Function Call Stack

Apr 25, 2014

What is Function call Overhead and Function Call Stack?

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C++ :: Linked List Pass By Address Error

Jul 24, 2014

#include <iostream>
using namespace std;
struct node
{

[Code]....

How is this not working? just the add & display function.

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C++ :: Calling Webservice Using GSoap - Error 400

Mar 18, 2013

I'm trying to call a webservice using gSoap with the following code:

Code:
#include "SoapH.h"
#include "BasicHttpBinding_USCOREIAuthentication.nsmap"
int _tmain(int argc, _TCHAR* argv[]) {
struct soap soap;
soap_init(&soap);

[Code] ....

I get the following error:
Error 400 fault: SOAP-ENV:Server [no subcode]
"HTTP Error"
Detail: HTTP/1.1 400 Bad Request
Press any key to continue . . .

I get the same error trying to connect to different services.

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C/C++ :: Error When Calling Perl Script That Sends SMS

Dec 12, 2012

#include <cstdio>
#include <cstdlib>  
int main () {
  int i;
  printf ("Checking if processor is available...");
  if (system(NULL)) puts ("Ok");

[Code] ....

is the syntax correct for system? i am getting error " error: perl was not declared in this scope"

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C++ :: Error Passing Dynamic Array As Arguments

Dec 9, 2013

I am trying to make quicksort and binary search and I get error when I am passing dynamic array to argument. It also says error during initialization of the dynamic array.

//.h file

#ifndef SortableArray_h
#define SortableArray_h

#include <iostream>
#include <string>

[Code] ....

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C :: Passing Three Command Line Arguments - Assertion Failed Error

Feb 14, 2013

I am using visual studio 2012 and i pass three command line arguments as 10 20 30 and when i m compile the program get error.....

Code:

#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
main(int n,char **p) {
int sum=0,i;
if(n>=2)

[Code] .....

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