I know I can compile individual source files, but sometimes -- say, when editing a header file used by many .cpp files -- multiple source files need to be recompiled. That's what Build is for. Default behavior of the "Build" command in VC9 (Visual C++ 2008) is to attempt to compile all files that need it. Sometimes this just results i...
This may be a matter of style, but there's a bit of a divide in our dev team and I wondered if anyone else had any ideas on the matter... Basically, we have some debug print statements which we turn off during normal development. Personally I prefer to do the following: \\---- SomeSourceFile.cpp ---- #define DEBUG_ENABLED (0) ... So...
I have developed in C++ many years ago, but these days I am primarily a Java software engineer. Given I own an iPhone, am ready to spring for a MacBook next month, and am generally interested in getting started with Mac OS developmentmt (using Objective C), I thought I would just put this question out there: What Next? More specificall...
I seem to be seeing more 'for' loops over iterators in questions & answers here than I do for_each(), transform(), and the like. Scott Meyers suggests that stl algorithms are preferred, or at least he did in 2001. Of course, using them often means moving the loop body into a function or function object. Some may feel this is an unacce...
In the (otherwise) excellent book C++ Coding Standards, Item 44, titled "Prefer writing nonmember nonfriend functions", Sutter and Alexandrescu recommend that only functions that really need access to the members of a class be themselves members of that class. All other operations which can be written by using only member functions shoul...
Is there an easy way to convert the number 1, 2, 3, ... to "1st", "2nd", "3rd", ..., and in such a way that I can give the function a language and have it return me the correct form for the language I'm targeting? Either standard C++ (stl or boost OK), MFC or ATL, win32 api or a small, single-purpose and free library that I can download ...
Is there a way to prevent VS2008 creating browse info file files for C++ projects. I rarely use the class browser and it isn't worth the time it takes to recreate it after every build, especially since it runs even if the build failed. EDIT - it's also needed for go to declaration/definition ...
My app keeps track of the state of about 1000 objects. Those objects are read from and written to a persistent store (serialized) in no particular order. Right now the app uses the registry to store each object's state. This is nice because: It is simple It is very fast Individual object's state can be read/written without needing...
In C++ you can initialize a variable in an if statement, like so: if (CThing* pThing = GetThing()) { } Why would one consider this bad or good style? What are the benefits and disadvantages? Personally i like this style because it limits the scope of the pThing variable, so it can never be used accidentally when it is NULL. However, ...
I need a quick easy way to get a string from a file in standard C++. I can write my own, but just want to know if there is already a standard way, in C++. Equivalent of this if you know Cocoa: NSString *string = [NSString stringWithContentsOfFile:file]; ...
I have a C++ tool that walks the call stack at one point. In the code, it first gets a copy of the live CPU registers (via RtlCaptureContext()), then uses a few "#ifdef ..." blocks to save the CPU-specific register names into stackframe.AddrPC.Offset, ...AddrStack..., and ...AddrFrame...; also, for each of the 3 Addr... members above, i...
So why exactly is it that it's always recommended to use const as often as possible? It seems to me that using const can be more of a pain than a help in C++. But then again, I'm coming at this from the python perspective: if you don't want something to be changed, don't change it. So with that said, here are a few questions: It se...
What's the difference between using a define statement and an enum statement in C/C++? (and is there any difference when using them with either C or C++?) For example, when should one use enum {BUFFER = 1234}; over #define BUFFER 1234 Thanks ...
I'm fast approaching the point in my coding where I would like to quickly write object oriented code in languages other than C++ for a variety of reasons. After a lot of research, my choices have pretty much narrowed down to Python and Java. I'm leaning towards Python because of its relationship to C, but with Java, from what I can see...
How does one do this? If I want to analyze how something is getting compiled, how would I get the emitted assembly code? ...
I'm trying to use boost::signal to implement a callback mechanism, and I'm getting a memory access assert in the boost::signal code on even the most trivial usage of the library. I have simplified it down to this code: #include <boost/signal.hpp> typedef boost::signal<void (void)> Event; int main(int argc, char* argv[]) { Event e...
For example int f(int a) { ... return a > 10; } is that considered acceptable (not legal, I mean is it ``good code''), or should it always be in a conditional, like this int f(int a) { ... if (a > 10) return 1; else return 0; } ...
Here's a common code pattern I have to work with: class foo { public: void InitMap(); void InvokeMethodsInMap(); static void abcMethod(); static void defMethod(); private: typedef std::map<const char*, pMethod> TMyMap; TMyMap m_MyMap; } void foo::InitMap() { m_MyMap["abc"] = &foo::abcMethod; m_MyMap["def...
http://en.wikipedia.org/wiki/Diamond_problem I know what it means, but what steps can I take to avoid it? ...
Do you know any easy or simple way to make a map object (from the STL library) persistent (i.e. write it to a file) so that you can recover its state later when the program in run later ?? Thanks for your help ...