Visual C++ :: Adding Header And Lib Files At Runtime?
Feb 4, 2013
I was created a dynamic library (Used win32 App) & compiled with no error.
Then i was created my main application (MFC) & paste the .h,.lib,.dll files from the source path(dll App Path) to destination path(Main App Path). If i used the below command in my app means the project working good.
Code:
#include "Alg.h"
#Progma Command(lib, "VTAlg.lib")
& also paste the VTAlg.dll in my app path.
here Alg.h contains the some methods , In future i will edit the function like below for my client requirement but no function name & Arguments change. The changes made in inside function(Logically changed) only.
My client contains only .exe file + .dll file.
My requirement, So after change the method i will send only .dll file to my client
If i change my lib file name VTAlg2.lib instead of VTAlg1.lib (But Same Function name & Arg type)means how can i edit the code below
Code:
#include "Alg.h"
#Progma Command(lib, "VTAlg.lib")
& How to run my application at client place.
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Sep 16, 2013
When including a header file in stdafx.h, should that file still be included in the source file where it is actually used?
If it is included in both places, is the one in the source file ignored?
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Nov 5, 2013
Is it possible to add a MFCToolBar to the header of a MFCPropertySheet because every page which will be dynamically added during runtime will be using the same toolbar and if it IS possible I would much rather do it this way instead of putting the same toolbar on every page. I have enabled the header with height of 48 and have implemented the MFCToolBar code first in the constructor then in OnCreate. It does not generate any errors during compiling or at runtime however the toolbar does not show.
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Nov 25, 2012
I am struggling to enable friendship between two classes in separate header files for a banking program.
I am attempting to get the Person class to use variables from the Account class. Heres what I have so far.
ACCOUNT.h:
Code:
#include<iostream>
#include<fstream>
#include<cctype>
#include<iomanip>
#include <string>
#include <math.h>
#include <windows.h>
#include <vector>
#include "Person.h"
using namespace std;
class person;
[code].....
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Feb 1, 2013
I am adding int type into vector called "vi" several times like this.
std::vector<int> vi;
void addFunc(int *a, int cnt) {
vi.erase(vi.begin(), vi.end());
vi.clear();
for(int i=0; i<cnt; i++)
vi.push_back(a[i]);
}
and I call the addfunc N times every sec.
And sometimes it has runtime error on vi.push_back line.
(called stack says "_CrtIsValidHeapPointer")
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Oct 30, 2014
My program needs to compile various source files at runtime.What is the most elegant way to compile cross platform with g++ from within my program? Is there a gcc-library I can use? I know that I could use popen() to open a Unix pipe and call g++ as command line tool. But first it isn't really cross platform and second it doesn't seem elegant to me.
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Jul 30, 2014
I'm writing a program that needs to parse executable files. I've got an "executable" base-class, and currently an "elf" class which inherits from it for parsing ELF files, and I will add more parsers (COM, MZ, PE, a.out, MACH-O, whatever) later on.
I want the program to automatically detect which kind of executable it's loading at runtime. It should be easy because every executable format I'm aware of/plan to support starts with a magic number. But because I can't have the parsers not check the file type (what if I re-use the code?), and I don't want to check each file twice (not just for performance, but also because only the ELF parser should know that ELF files start with "x7fELF", etc.) so I've come up with a pretty lazy solution: just try to parse the file with each known parser and have them throw an exception ("exe_type_error") if they can't parse it. If that exception gets thrown, try the next parser; if not, stop.
The remaining problem is how, at runtime, my program will know what parsers are available. I don't want to hard-code it in the main function; instead, I'd like the parsers to "register" themselves as available. That way, if I decide to go down the route of adding new parsers via dynamic linking, I will only have to add an API for dynamic libraries to register their parser, without recompiling any of the main program's code. I also want to do the same thing for another key part of the program (it's a static executable optimizer; it will run a series of "tests" (e.g. "is xor eax, eax faster than mov eax, 0 on this machine?") and optimizations ("if yes, change all mov eax, 0 to xor eax, eax") and I want to load those at runtime too).
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Nov 2, 2013
I have a piece of code in C with header files included. I run it on Mac OS X Maverick with XCode 4.6.2 installed. GCC is also installed. Note that Command Line Tools in XCode are already installed.
When I compile it, the error I receive says something like this:
add.c:1:19: error: stdio.h: No such file or directory add.c:2:20: error: stdlib.h: No such file or directory add.c:3:20: error: unistd.h: No such file or directory
However when I run it on Ubuntu, it compiles without a problem.What to do?
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Dec 9, 2013
So I've been making a header file and put variables in their own namespace to avoid conflicts. My question is, do functions in the header file normally go in a namespace too, or should they just be named in a way which makes them unlikely to be accidentally copied?
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Apr 2, 2013
My teacher talks about header files just having definitions and not declerations. I am writing a program that has a .h file and a related .cpp file along with a main.cpp it would be nice to have the .cpp file associated with the .h file compiled into an object file that would than just be referenced when the .h file is included. Am I making any sense?
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Sep 17, 2013
I want to use two header files in my program. Here is exactly what I want to do.
-In the first header I have a binary tree and a structure.
-In the second file I have another functions that need to use the structure in the first header.
-I also want to use a function from the second header in the first.
-And finally I want to do actions with both headers in a "main.cpp" file that contains only int main() function.
How to include the headers in each other and in the main.cpp to be able to do the actions above?
I try to include the first header in the second one and the second one in the first header. Then I include both headers in the main.cpp file. But the compiler shows me many errors.
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May 2, 2013
I have two header files, A, B.
A.h
namespace test {
struct info
{
int a;
}
}
B.h
#include "A.h"
int main {
test::info.a = 10;
}
However, it has an error. I don't quite understand how to use namespace.
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Aug 27, 2013
I'm working with CGAL - Computational Geometry Algorithms Library, which is a library of geometry functions declared as several thousand header-only files. When I run a basic program (source code [URL] ) I get this output: [URL]
I have tried switching angle brackets to quotes. I have also started reading up on CMake.
Do I need to walk the dependency tree and add all of those files to my CMakeLists.txt? Or is there a way to tell the compiler to look in subdirectories?
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Nov 6, 2013
I have some header files with generic functions. And in one of them, I define TRUE and FALSE. Recently I started using another header file and it defined TRUE and FALSE as well. That caused GCC to throw an error, and not compile. In my case I can put #IFNDEF around the values so that if it is already defined they don't get defined again, but is there a better way to handle duplicate names? I assume the case would be the same for duplicated functions, how does that get handled?
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Mar 6, 2015
I have a problem with making header files in c, i get the code written only in main.c and then i have to create a files with extension .h and extension .c but how to do it.
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Aug 2, 2014
So say I create a header file which contains a list of structs, and I want to use these structs through out my source and some of my classes... how would I accomplish this?
When I try to do it via #include, I get re-definition errors, due to the nature of #pragma once. If I switch to #ifndef then I lack defenitions in files other than the source.
Is there a way to define things such as structs across multiple files, which doesn't lead to re-definition errors, and doesn't involve manually re-created all the structs for each file?
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Dec 3, 2013
I'm having with header files, specifically to do with the string data type. The objects work perfectly when I put them inside the .cpp but when I set it to include the exact same code in a .h, I get a string of error messages.
class Topic
{
private:
string NInfo, SInfo, EInfo, WInfo, Name ;
bool Quest ;
[code]....
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May 27, 2013
I want to include turboc.h file for some project
where do i have to add this file for mac xcode?
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Jun 8, 2013
I'm working on trying to figure out constructors and header files. Can ya'll help me out with this? I'm sure my code looks like a mess as I tried to piece together different solutions I've found. There's also an attempted copy constructor and operator function. Basically my problem is my source file says there is no default constructor for my class type. Here's my header code:
#include <iostream>
#ifndef _car
#define _car
[Code].....
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Oct 30, 2014
I currently have a running program "game.cpp" that runs a game of tic tack toe. I want to split the working functions into header files so that game.cpp isn't so cluttered. I have created two header files "displayBoard.h" and "gamePlay.h" but they wont compile because the functions are looking for variables that haven't been declared. First, here's the working code.
#include "displayBoard.h"
#include <iostream>
#include <limits> //This is required to catch invalid user input
class ticTacToe //A class to contain all our functions {
[Code] .....
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Jul 30, 2014
I am having the issue of trying to call functions of a class through the header file.
Test.h
#ifndef TEST_H
#define TEST_H
class Test {
public:
void Hello();
[code]....
This code returns the error "undefined reference to 'Test::Hello()'"
All I am trying to do is call the Hello(); function in a seperate file.
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Jan 28, 2015
this is my main cpp file:
#include<iostream>
#include<conio.h>
#include "C:UsersAmitDesktopNew foldersum.h"
using namespace std;
int main() {
int a;
int b;
[Code]...
this is my 2nd cpp file add two number
#include<iostream>
#include "C:UsersAmitDesktopNew foldersum.h"
int sum(int x,int y) {
return(x+y);
}
this is my header file used in both cpp file
#ifndef SUM_H
#def SUM_H
int sum(int x,int y);
#endif
error i am getting in main cpp in devc++
[Linker error] undefined reference to `sum(int, int)'
[Linker error] undefined reference to `sum(int, int)'
in 2nd cpp file [Linker error] undefined reference to `WinMain@16' [/code]
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Oct 13, 2012
msdos is present on my computer but it cannot include the header files but when i check all files are present but they still cannot include????????
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Mar 16, 2012
Here is what I did,
Code:
// A.h
const int salary = 1000000;
// B.h
extern const int salary = 1000000;
But I still got multi-definition errors. How should I fix it?
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Oct 2, 2014
I'm a beginner with C and wonder how to include single header files (*.h) in to my project. I mean header files which are not included to the standard installation package.
I thought it would work if I just copy the newheader.h file in to library folder c:MinGWinclude, but it didn't work. Is there some kinf of GCC -command or procedure to add these single header files or how it should work?
All of those standard header files are working well and I don't have any problems with them.
Environment I'm using is MinGW+GCC+Win7.
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Mar 26, 2013
Modify program 3 by saving the header file on your memory stick and remove it from the Header section of the VC++ in the Solutions window.
Code:
#include<stdio.h>
#define pi 3.141592654
#define A (num) * (pi) * (Radius) /* a macro defines a math equation */
float spherevolume (float);
main() {
[Code] ....
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