I have been struggling with this for some time now. This is my problem.
I have 2 sets of code, one that uses a function and another that uses a
class.
The set of code using a function works fine, but the code using the class is
not working, which is not good because I am trying to make my project in
class form.
My function code is attached as code 1.
My class code is attached as code 2.
I have also attached the error code that I got when I tried to compile code
2 using VS2010.
Please help me figure this out.
#include "curl/curl.h"
#include "curl/easy.h"
size_t write_data(void *ptr, size_t size, size_t nmemb, FILE *stream)
{
size_t written;
written = fwrite(ptr, size, nmemb, stream);
return written;
}
CURL *curl;
FILE *fp;
CURLcode res;
long lSize;
char *translated;
void func(){
curl = curl_easy_init();
if(curl) {
fp = fopen("C:\\text1.txt","wb");
curl_easy_setopt(curl, CURLOPT_URL, "http://www.cnn.com";);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
fclose(fp);
}
}#include "sourcefunc.h"
void func();
int main(){
func();
return 0;
}#include <iostream>
#include <string>
#include "curl/curl.h"
#include "curl/easy.h"
using namespace std;
class rawdata
{
size_t write_data(void *ptr, size_t size, size_t nmemb, FILE *stream)
{
size_t written;
written = fwrite(ptr, size, nmemb, stream);
return written;
}
private:
CURL *curl;
FILE *fp;
CURLcode res;
long lSize;
char *translated;
string data;
public:
rawdata(string url); //constructor
~rawdata(); //destructor
void read(); //read source
};
rawdata::rawdata(string url)
{
string data = url;
}
rawdata::~rawdata(){};
void rawdata::read()
{
curl = curl_easy_init();
if(curl) {
fp = fopen("C:\\text1.txt","wb");
curl_easy_setopt(curl, CURLOPT_URL, data);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
fclose(fp);
}
}#include "sourceclass.h"
int main()
{
rawdata cnn("http://www.cnn.com";);
cnn.read();
return 0;
}1>------ Build started: Project: project2, Configuration: Debug Win32 ------
1>Build started 10/23/2010 12:27:08 AM.
1>InitializeBuildStatus:
1> Creating "Debug\project2.unsuccessfulbuild" because "AlwaysCreate" was
specified.
1>ClCompile:
1> main.cpp
1>c:\project\libcurl\visualstudio\project2\project2\sourceclass.h(46): warning
C4996: 'fopen': This function or variable may be unsafe. Consider using fopen_s
instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help
for details.
1> C:\Program Files\Microsoft Visual Studio
10.0\VC\include\stdio.h(234) : see declaration of 'fopen'
1>c:\project\libcurl\visualstudio\project2\project2\sourceclass.h(48): error
C3867: 'rawdata::write_data': function call missing argument list; use
'&rawdata::write_data' to create a pointer to member
1>
1>Build FAILED.
1>
1>Time Elapsed 00:00:01.87
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
-------------------------------------------------------------------
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