Hi, I have introduced boost to our code base, on my machine I created a boost directory called Thirdparty.Boost and added that as an additional include directory in my Visual Studio setting, all is fine. However I now want to check in my changes, so the rest of the team can get them. Inorder to build the code they would need to setup b...
I am working on this project where I need to read in a lot of data from .dat files and use the data to perform simulations. The data in my .dat file looks as follows: DeviceID InteractingDeviceID InteractionStartTime InteractionEndTime 1 2 1101 1105 1,2 1101 and 1105 are tab delimited and ...
Hi, I have some doubts about construction and initialization order guarantees in C++. For instance, the following code has four classes X, Y, Z and W. The main function instantiates an object of class X, which contains an object of class Y, and derives from class Z, so both constructors will be called. Additionally, the const char* para...
Hi, consider this classic example used to explain what not to do with forward declarations: //in Handle.h file class Body; class Handle { public: Handle(); ~Handle() {delete impl_;} //.... private: Body *impl_; }; //--------------------------------------- //in Handle.cpp file #include "Handle.h" class Bod...
Hey, looking for a forum to look at libdmtx anyone know where to find it? Thanks ...
A popular editor uses highlighting to help programmers avoid using C++ keywords in Java. The following words are displayed using the same colors as a syntax error: auto delete extern friend inline redeclared register signed sizeof struct template typedef union unsigned operator Why would this be considered important? ...
Hi, In my C++ program, I need to call this c API: GConn* gnet_conn_new (const gchar *hostname, gint port, GConnFunc func); where GConnFunc is defined as: void (*GConnFunc) (GConn *conn); My question is if I have a C++ class and have a member function like: Class A { public: A(); ...
Which way is better for a novice student who has never used boost? When a new standard arrives, the answer will be obvious, but now I have doubts. Pro for boost is that it's much closer to future standard. ...
YYSTYPE yyvsa[YYINITDEPTH]; YYSTYPE *yyvs = yyvsa; register YYSTYPE *yyvsp; For the code above,it just reports: Description Resource Path Location Type syntax error before "yyvsa" yysphinxexpr.c /sp/src line 852 C/C++ Problem Which is far from useful,is it for configuration reasons? ...
How to make a block of memory allocated by malloc() or new: immediately swapped out, or lazily initialized. In fact, I'm trying to reserve an address space. How to accomplish this? PS. How to verify, from the user space, if a memory block is swapped out? ...
Hello, uname -mr: B.11.23 ia64 g++ --version: g++ (GCC) 4.4.0 java -version: Java(TM) SE Runtime Environment (build 1.6.0.06-jinteg_20_jan_2010_05_50-b00) Java HotSpot(TM) Server VM (build 14.3-b01-jre1.6.0.06-rc1, mixed mode) I'm trying to run a Java application that uses JNI. It is crashing inside the JNI code with the following (...
I have a piece of C++ code (compiled with g++ under a GNU/Linux environment) that load a function pointer (how it does that doesn't matter), pushes some arguments onto the stack with some inline assembly and then calls that function, the code is like : unsigned long stack[] = { 1, 23, 33, 43 }; /* save all the registers and the stack p...
When should I choose one over the other. Are there any pointers that you would recommend for using the right STL containers. ...
For a function with signature: struct Pair { void *v1, *v2 }; void f(Pair p); compiled on x64, I would like Pair's fields to be passed via register, as if the function was: void f(void *v1, void *v2); Compiling a test with gcc 4.2.1 for x86_64 on OSX 10.6, I can see this is exactly what happens by examining the disassembly. Howeve...
Is there any way a program can crash before main()? ...
I have turned computer monitor off using this command SendMessage(f.Handle, WM_SYSCOMMAND, (IntPtr)SC_MONITORPOWER, (IntPtr)(turnOff ? 2 : -1)); is it possible to hook monitor turning on to prevent it or execute some function? ...
Hi, this is my first question, so sorry if the form is wrong! I'm trying to make thrift server (python) and client (c++). However I need to exchange messages in both direction. Client should register (call server's function and wait), and server should listen on same port for N (N-> 100k) incoming connections (clients). After some cond...
I've got a namespace with a ton of symbols I use, but I want to overwrite one of them: external_library.h namespace LottaStuff { class LotsOfClasses {}; class OneMoreClass {}; }; my_file.h using namespace LottaStuff; namespace MyCustomizations { class OneMoreClass {}; }; using MyCustomizations::OneMoreClass; my_file.cpp int main(...
I know that it's OK for a pure virtual function to have an implementation. However, why it is like this? Is there conflict for the two concepts? What's the usage? Can any one offer any example? ...
I am currently developing a plugin-based system in C++ which provides a Lua scripting interface, for which I chose to use luabind. I'm using Lua 5 and luabind 0.9, both statically linked and compiled with MSVC++ 8. I am now having trouble binding functions with luabind when they are defined in a derived class, but not its parent class. ...