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Victor Nijegorodov wrote: What is it?
Spam.
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Check that your .vcxproj files are there. If they are, check the Properties of your project(s) to see if their dependencies are correct and if they generally make sense.
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Weird, never figured it out. Pulled the project from a zip file, and it built.
Appreciate all the suggestions.
Charlie Gilley
“They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759
Has never been more appropriate.
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charlieg wrote: What am I missing?
Presidents shouldn't be compiling software. You need a software developer. 
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lol, true. I'm also the treasurer. It's oh dark thirty here and thanks for the laugh.
Charlie Gilley
“They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759
Has never been more appropriate.
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This is what is in the Build tab: image-2022-04-22-062801040 — ImgBB[^]
This code lives on a VM that was migrated into a zero trust cloud. I can go back to the original VM, and 2015 there has the full build menu.
Charlie Gilley
“They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759
Has never been more appropriate.
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As I recall, Visual Studio has never supported working with solutions that are located on network/remote drives.
Are you working with Visual Studio on the virtual machine where the solution resides?
The difficult we do right away...
...the impossible takes slightly longer.
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No, I just RDP into it. Nothing too fancy.
Charlie Gilley
“They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759
Has never been more appropriate.
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A STL container is not your typical c++ class, how do you declare a vector pointer and pass it to a function.
class someclass
{
public:
int ID;
}
void somefunction(vector<someclass>* vec)
{
someclass scitem;
vec->push_back(scitem);
}
vector<someclass>* vec;
somefunction(vec);
I`m also not sure how a vector of pointers would work.
void somefunction(vector<someclass>* vec)
{
someclass * scitem;
scitem = (someclass*)malloc(sizeof(someclass));
vec->push_back(scitem);
}
vector<someclass*>* vec2;
somefuntion(vec2);
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Yes, STL containers are just template classes and can be manipulated the same as any class objects. And as such, a vector may contain objects, or pointers to objects. But remember in the second case that the items pointed to, must not be removed while the vector still owns them.
std::vector<char*>* pMyvec = new std::vector<char*>(); pMyvec->push_back("A string");
pMyvec->push_back("Another string");
int result = myfun(pMyvec);
BTW you should not use malloc in C++ code, as new and delete is the correct way to manage memory.
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Quote: And as such, a vector may contain objects, or pointers to objects
But when you add a class object, the vector doesn`t make a copy of the object, it creates a pointer to the object being added. A linked list deals with pointers not objects.
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If you add an object to an STL container (vector, list, set, map...), the object is copied into the container. The objects must all be of the same type, however. The only way to put polymorphic objects into a container is to use a container of pointers to their common base class, in which case the objects need to survive outside the container, probably by having been allocated from the heap.
modified 16-Apr-22 7:34am.
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thanks Greg, I`ll keep that in mind.
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CalinNegru wrote: when you add a class object, the vector doesn`t make a copy of the object, it creates a pointer to the object being added.
No, the vector copies whatever type you have declared it with. For example:
std::vector<std::string> myVec;
std::string newstr = "A string";
myVec.push_back(newstr);
CalinNegru wrote: A linked list deals with pointers not objects.
Well sometimes it does; but what has that to do with this question?
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ok, I think I get your point
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I am using the attached code , originally written in C , and receiving an error - related to usage of BDADDR_ANY macro - I do not understand
and do not know how to fix it.
Here is BDADDR_ANY macro
#define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
#define BDADDR_ALL (&(bdaddr_t) {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff}})
#define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff}})
\<pre>
struct sockaddr_rc loc_addr;
struct sockaddr_rc rem_addr;
char buf[1024] = { 0 };
int s, client, bytes_read;
socklen_t opt = sizeof(rem_addr);
s = socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM);
loc_addr.rc_family = AF_BLUETOOTH; loc_addr.rc_bdaddr = *BDADDR_ANY;
/mnt/sde5/QT_PROGRAMS_FULL/MDI_BT/MDI_BT/SUB_FT857/mainwindow_sub_ft857.cpp:106: error: taking address of rvalue [-fpermissive]
In file included from /mnt/sde5/QT_PROGRAMS_FULL/LoCAL_SOURCE/BT_Utility_Library/concurrent.h:15,
from /mnt/sde5/QT_PROGRAMS_FULL/MDI_BT/MDI_BT/SUB_FT857/mainwindow_sub_ft857.h:17,
from /mnt/sde5/QT_PROGRAMS_FULL/MDI_BT/MDI_BT/SUB_FT857/mainwindow_sub_ft857.cpp:1:
/mnt/sde5/QT_PROGRAMS_FULL/MDI_BT/MDI_BT/SUB_FT857/mainwindow_sub_ft857.cpp: In member function ‘int MainWindow_SUB_FT857::Connect(QString)’:
/mnt/sde5/QT_PROGRAMS_FULL/MDI_BT/MDI_BT/SUB_FT857/mainwindow_sub_ft857.cpp:106:27: error: taking address of rvalue [-fpermissive]
106 | loc_addr.rc_bdaddr = *BDADDR_ANY;
| ^~~~~~~~~~
actually there is another take on this error
" taking address of temporary value..."
( not sure why they differ )
loc_addr.rc_channel = (uint8_t) 1;
bind(s, (struct sockaddr *)&loc_addr, sizeof(loc_addr));
listen(s, 1);
client = accept(s, (struct sockaddr *)&rem_addr, &opt);
ba2str( &rem_addr.rc_bdaddr, buf );
fprintf(stderr, "accepted connection from %s\n", buf);
memset(buf, 0, sizeof(buf));
bytes_read = read(client, buf, sizeof(buf));
if( bytes_read > 0 ) {
printf("received [%s]\n", buf);
}
Please any help to resolve this coding issue will be much appreciated.
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You are trying to dereference the BDADDR_ANY structure. You should just take the value, which is already the address.
loc_addr.rc_bdaddr = BDADDR_ANY;
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// Server side C/C++ program to demonstrate Socket programming
#include <unistd.h>
#include <stdio.h>
#include <sys socket.h="">
#include <stdlib.h>
#include <netinet in.h="">
#include <string.h>
#define PORT 8080
int main(int argc, char const *argv[])
{
int server_fd, new_socket, valread;
struct sockaddr_in address;
int opt = 1;
int addrlen = sizeof(address);
//int addrlen;
char buffer[1024] = {0};
char *hello = "Hello from server";
// Creating socket file descriptor
if ((server_fd = socket(AF_INET, SOCK_STREAM, 0)) == 0)
{
perror("socket failed");
exit(EXIT_FAILURE);
}
// Forcefully attaching socket to the port 8080
if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT,&opt, sizeof(opt)))
{
perror("setsockopt");
exit(EXIT_FAILURE);
}
address.sin_family = AF_INET;
address.sin_addr.s_addr = INADDR_ANY;
address.sin_port = htons( PORT );
// Forcefully attaching socket to the port 8080
//if (bind(int sockfd, const struct sockaddr *addr,
// socklen_t addrlen)<0))
//if (bind(int server_fd,(const struct sockaddr *)&address,sizeof(address))<0)
if (bind(server_fd, (struct sockaddr *)&address,sizeof(address))<0)
{
perror("bind failed");
exit(EXIT_FAILURE);
}
if (listen(server_fd, 3) < 0)
{
perror("listen");
exit(EXIT_FAILURE);
}
if ((new_socket = accept(server_fd, (struct sockaddr *)&address,
(socklen_t*)&addrlen))<0)
{
perror("accept");
exit(EXIT_FAILURE);
}
valread = read( new_socket , buffer, 1024);
printf("%s\n",buffer );
send(new_socket , hello , strlen(hello) , 0 );
printf("Hello message sent\n");
return 0;
}
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Your code compiles fine on my Linux box (GCC 9.4).
"In testa che avete, Signor di Ceprano?"
-- Rigoletto
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You are welcome.
"In testa che avete, Signor di Ceprano?"
-- Rigoletto
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System.DirectoryServices.dll file has been added successfully to Visual C++ MFC project through References in Solution Explorer.
Microsoft Development Environment 2003 Version 7.1.3088.
Microsoft .Net Framework 1.1 Version 1.1.4322
using namespace System::DirectoryServices;
void CClassName::MethodName(){
...
DirectorySearcher* directorySearcher = new DirectorySearcher();
directorySearcher->ClientTimeout = 60000;
...
}
file.cpp(1701): error C2061: syntax error : identifier 'DirectorySearcher'
file.cpp(1701): error C2065: 'directorySearcher' : undeclared identifier
file.cpp(1701): error C2065: 'DirectorySearcher' : undeclared identifier
file.cpp(1702): error C2227: left of '->ClientTimeout' must point to class/struct/union
type is ''unknown-type''
file.cpp(1268): error C2653: 'System' : is not a class or namespace name
file.cpp(1268): error C2871: 'DirectoryServices' : a namespace with this name does not exist
file.cpp(1702): error C3861: 'directorySearcher': identifier not found, even with argument-dependent lookup
By this way I need to set Request Timeout for SOAP WebService
modified 2-Apr-22 8:04am.
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It is .Net:
Microsoft Development Environment 2003 Version 7.1.3088.
Microsoft .Net Framework 1.1 Version 1.1.4322
Visual C++ MFC:
When I add to References System.DirectoryServices.dll it refuses to add not 1.1.4322 version of it,
only System.DirectoryServices.dll of 1.1.4322 version
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