I have been trying to get the libcurl library to work with the following program shown below but I have been getting the following error:
||=== Build: Debug in test3 (compiler: GNU GCC Compiler) ===|
objDebugmain.o||In function `Z8getstockPcS_':|
undefined reference to `_imp__curl_global_init'|
undefined reference to `_imp__curl_easy_init'|
undefined reference to `_imp__curl_easy_setopt'|
undefined reference to `_imp__curl_easy_setopt'|
undefined reference to `_imp__curl_easy_setopt'|
undefined reference to `_imp__curl_easy_setopt'|
undefined reference to `_imp__curl_easy_setopt'|
undefined reference to `_imp__curl_easy_perform'|
undefined reference to `_imp__curl_easy_cleanup'|
undefined reference to `_imp__curl_global_cleanup'|
||=== Build failed: 10 error(s), 0 warning(s) (0 minute(s), 0 second(s)) ===|
I'm using Windows 7 64bit and Code::Blocks. Under 'build options' linker settings and link libraries I added all the libraries listed in the lib64 folder namely, libcrypto.a, libcrypto.dll.a, libcurl.a, libcurldll.a, librtmp.a, libssh2.a, libssh2dll.a, libssl.a, libssl.dll.a, libz.a, libz.dll.a, and libzdll.a. Under search directories compiler I included c:libcurl-7.34.0-devel-mingw64include and under search directories linker I included c:libcurl-7.34.0-devel-mingw64lib64.
I am trying to retrieve information from a website [URL] .... and have written a C code as follows:
Code: #include <stdlib.h>#include <stdio.h> #include <string.h> #include <curl/curl.h> int main(int argc, char* argv[]) { /* Exit status to return */ int exitStatus = 0;
[Code] .....
The output of this program should be: From To 4504111 B0LPF3 4504111 P62993
The first print option [printf("%s", url)] gives the url output as [URL] .... which on being manually pasted in any web-browser gives the correct output but the program fails to give the output.
I downloaded Oracle instantclient-basic-nt-12.1.0.1.0.zip and instantclient-sdk-nt-12.1.0.1.0.zip and extracted both to c:oracle I then went into visual studio 2013 and created a Win32 Console application with all default parms.
I then went into project -> properties -> C/C++ -> General -> Additional Include Directories and added my include path C:oraclesdkinclude
I then went into project -> properties -> Linker -> General -> Additional Library Directories and added C:oraclesdklibmsvcvc11
I then went into project -> properties -> Linker -> Input -> Additional Dependancies and added oraocci12.lib
The program compiles but when I debug i get a RUNTIME error that says "The program can't start because oraocci12.dll is missing from your computer. Try reinstalling the program to fix this problem. But I know the file exists in C:oraclesdklibmsvcvc11oraocci12.lib
This is the code if it makes a difference
Code: #include "stdafx.h" #include <iostream> #include <occi.h> using namespace std; int _tmain(int argc, _TCHAR* argv[])
I am trying to use the C++ version of VOCE voice recognition API. It is an API built in Java, with support to C++ as well.
It works totally fine when I am working with VC2010. In vc2010 I have put all the necessary include files in the Vc++ Directories->Include Directories, and the library D:Program FilesJavajdk1.7.0_45lib in Linker->Additional Library Directories, and i added jvm.lib in Linker->input And everything works great
However, whenever I am trying to execute it in Qt, I am getting the error:
Code: thread.obj:-1: error: LNK2019: unresolved external symbol __imp__JNI_CreateJavaVM@12 referenced in function "void __cdecl voce::init(class std::basic_string<char,struct std::char_traits<char>, class std::allocator<char> > const &,bool,bool,class std::basic_string<char,struct std::char_traits<char>,
Okay so I'm writing a simple program - so far with just 1 header and 1 .cpp file to go with it. I'm getting strange errors saying that my struct hasn't been recognised even though I declare it in the header. The code involved is --
Code: #include<stdio.h> #include<iostream> #include<sstream> #include"bots.h" //#include"prisonersDilemna.h" //write program to battle multiple bots with a random choice generator //and after all iterations post who comes out on top.
[Code] ....
||=== Build finished: 6 errors, 0 warnings ===|
How should the syntax be? Why does my program not recognise bot as an object type? Why can I not have a void method?
So I made a library for a whole bunch of functions and when i compile it, it says"Unresolved external symbol_(Name of function here) referenced in function main.
I am debugging a library. I can step into the code however the watch window doesn't show the values of any variables. It will display a message in the value field:
Code: m_pParentCXX0017: Error: symbol "m_pParent" not found
Interestingly it does show values for local variables in that function but not member functions. Most of my data members are member function though that I want to debug. I am using VS2010.
I've been reading about libraries; How to make them, how to use them, the different types of libraries, etc..
When using a shared library, does the program require that library to be installed on the computer after the program has been compiled into an .exe?
Ie.. if somebody downloaded a "Helloworld.exe" that I had compiled on my computer using a shared library (that wasn't part of a standard operating system), would they also need that shared library on their computer for the program to run without errors?
and for Static Libraries, when I compile a program using a static library, does it include in the final binary only the functions of the library that are actually used, or does the compiler add in the entire library?
Cannot manage to find the error source when i try running the program, the first part of the program runs just fine its when i try to get the temperature one that i get the error
#include <iostream> #define pi 3.141592 using namespace std; int main() { double r, h; //declare variables for radious and height double Surfacearea;
I've just recently started to learn C++, and I'm encountering some errors I can't seem to figure out.
InventoryItem.h:
Code: #pragma once class InventoryItem { public: InventoryItem(string name, int amount); ~InventoryItem(void); string getName(void); int getAmount(void);
I'm trying out the gmp library by building a simple pi calculation program (original, I know!). On a million digits of Pi I've debugged the program and seem to have about a megabyte too much of memory at the end of the program (I start with around 250k before any allocation begins and end at around 1200).
int main(int argc, char *argv[]) { //set a// int digitsofpi =1000000; mpf_set_default_prec(log2(10) *digitsofpi );
I have been trying to find a way around the following:
I am using a library functor to solve the root of a non linear equation. It passes two doubles and the name of a function that contains the equation to be solved.
I use the library opensteer, but I do not know where you should start.
Opensteer is a library written in C ++. My problem is figuring out whether to create a blank project in visual studio and import the library or directly import the library.
I'm attempting to write a little UDP socket library in c++ on linux so a user can just create a new instance of a UDPSocket class, specify destination ip and port, and just connect. Then the user should be able to call send() or receive() in any order they want.. and here I encounter a little problem..
Most of the tutorials for udp socket sending out there include a bind() call when you create your "server" that is supposed to receive data, but the code that send data does not need one. Because I also want my library to support unicast/broadcast/multicast, I have read that I need to set the socket option SO_REUSEADDR on my sockets (since multiple sockets will need to be connected to same destination IP/port for broadcast/multicast)
My question is.. do I need to create 2 socket handles per "UDPSocke in order to make this work? One for sending and one for receiving data? In my code when I try to work with only 1 socket, it is only able to receive stuff from itself on unicast.. Or should I just remove the SO_REUSEADDR when in unicast mode, then try to bind with both sockets, accept that the bind will only work on the 1st socket, and take it from there?
I want to create a C library function that i can directly call in my code from any .c file having main program.following are codes...code of library function "foo.c"
Code:
#include "foo.h" int foo(int x) /* Function definition */ { return x + 5; } header file "foo.h"
Code:
#ifndef FOO_H_ /* Include guard */ #define FOO_H_ int foo(int x); /* An example function declaration */ }
[code]....
to use this i have to compile the file in below manner...
Code: gcc -o my_app main.c foo.c
My concern here is that i want to compile the main.c and use function without compiling foo.c with i.e.
Code: gcc -o my_app main.c
any user of this function should only compile his program and should be able to use the function, the foo.c file should remain hidden from him
my system is Linux 2.6.18-308.4.1.el5 #1 SMP Wed Mar 28 01:54:56 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux
I am trying to refresh my memory here as I did some studies many years ago but the results elude me.Also todays c/c++ compilers may have better optimizations.Say I have a static library that includes three obj modules.Each of these object modules has a number of functions. These functions do not reference any other functions within the obj module.My main app links this library but only references one function from each of the object modules.
Question: Are the complete contents of each module linked into my main app or are todays linkers smart enough to just link the functions used?
I am in try to use PlPlot library (for plotting) in C with code::blocks IDE (ver 10.05) on windows-7 plateform. I downloaded "plplot-5.9.9.tar" and unzipped it. In documentation it is not very clear to me (I am not expert in using third party lib.), how this library can be used with code::blocks i.e. where I have to save the lib, what should be added in compiler and debugger settings etc. It also seems from document that "makefile" (linux type!!) is necessary for Windows also? I am also unaware of MSYS makefile generator (given on Wiki page) on windows?
I'm trying to make a list that contains other lists. I want to use the <list> library /not my own implementation/. Here is what I do:
list<list<int>> Lists; //I create the main list list<int> A, B; //Then I create the other lists //After I fill them with data I add them to the main list Lists.push_back(A); Lists.push_back(B);
The problem comes when I try to go through A and B. I make an iterator of the main list:
list<list<int>> Iter = Lists.begin();
Then I need to make an iterator to traverse through A and B. But I can't make it. I do this:
list<int> Iter2 = Iter.begin() //But the compiler says it is not possible
