Tagged Questions
1
vote
1answer
37 views
how to pass pointer to member function of a template class?
I just faced an interesting challenge, let's solve it together:
I had a Broker class similar to this:
//Broker.h
#pragma once
#include <boost/shared_ptr.hpp>
template<class ...
0
votes
1answer
90 views
error C2664 cannot convert parameter 1 from 'std::string (__thiscall ClassName::* )(std::string)' to 'std::string (__cdecl *)(std::string)
I'm making a unmanaged application to handle an event fired in c# here.
FYI:: I want to handle a custom event when my Name property in C# class is changed.
I have gone through the following links:
...
8
votes
4answers
954 views
What's the point of using boost::mem_fn if we have boost::bind?
I'm having a look at the Boost libraries that were included in C++'s Technical Report 1 and trying to understand what each does.
I've just finished running an example for boost::mem_fn and now I'm ...
0
votes
0answers
71 views
How to get the function pointer of a function being called by another function for boost::call_once?
I understand what is needed to properly call boost's call_once function but I am unsure how to do when I have a function calling another function. Is it even possible?
I have the following as an ...
0
votes
0answers
88 views
boost.python: pointer to static function
I have some C++ function (not mine, so i can't edit):
void MyClass::SetOnConnect(bool (*pfn)(void * pParam), void * pParam)
{
pfnCallBack = pfn;
pCallBackParam = pParam;
}
later in code it will ...
4
votes
6answers
330 views
map of pointers to functions of different return types and signatures
I am looking for a way to call different functions by a string input.
I have a map that ties each unique string to a function pointer and a lookup function to search the map and return a pointer if ...
0
votes
1answer
251 views
Using boost::function and boost::bind to a member variable
I'm trying to create a boost::function that allows setting of a member variable of an object. I've created the simplest example I can think of to get across what I'm trying (and failing) to do. I feel ...
3
votes
4answers
396 views
Vector of functions with parameters
I have made vectors that contain functions, but they had no argument list. Also, they were not inside of a class. I have a class named Dialog, and I need to store function-pointers with a specific ...
1
vote
2answers
152 views
C++ class member callback and external library
I would like to solve this issue about class member function callback.
Imagine you have a function from an external library (which cannot be modified!) like this:
void fortranFunction(int n, void ...
3
votes
2answers
134 views
Why is c++ template argument deduction failing in this case?
I am trying to write my own delegate system as a replacement for boost::functions since the latter does a lot of heap-allocations which I profiled to be problematic.
I have written this as a ...
0
votes
3answers
544 views
boost::bind return a function object which is the argument for a function that requires pointer
I am doing C++ coding on Linux about boost::bind.
The return data type of boost::bind is a function object, which is an input argument to another function bridge_set_pound_var_func.
But, ...
0
votes
2answers
631 views
C++ callback for non-static function between different classes
I have a Class A which I intend to put in a shared library as it interacts with the device drivers.
I have a Class B and may be C,D,E... in future which will use the class A using the shared library.
...
4
votes
1answer
448 views
Boost fast pool allocator has problems with function pointers?
Is this a Boost bug or am I doing something wrong?
#include <map>
#include <boost/pool/pool_alloc.hpp>
int main()
{
typedef const std::string key;
typedef double* (*value)(const ...
1
vote
3answers
463 views
How can I use a std::tr1::function object in a key to unordered_map?
I'm trying to form a std::tr1::unordered_map where the key type is a struct that includes a callback function, for which I'm using std::tr1::function. I'm running into two problems: 1) the function ...
1
vote
1answer
452 views
Boost::Variant and function_types in it: How to put functions into Boost::variant?
Lirics:
I try to implement a task pool over MPI. So I need some kind of RPC but one that would work between difrent parts of my programm, meaning processor A wants processor B to call function C with ...
