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Boost shared ptr construction 16 Years Ago by Niner710 Hi , I am trying to use a Boost shared ptr with a map template. I have a bunch of subclasses … to set the string "Iddq" to a boost shared pointer to subclass of TestSuperClass. Also have a problem when… How do I set shared ptr to NULL 15 Years Ago by Niner710 Hi, I have a simple question on trying to set shared ptr to NULL. I get an error(binary '=': no operator found which takes a right hand operand of type 'int') when I do this... [code] typedef std::tr1::shared_ptr<A> A_smrt; A_smrt = NULL; [/code] Why is this wrong? Re: How do I set shared ptr to NULL 15 Years Ago by abhi_elementx Actually there is no need to initialise it to NULL as we do in case of normal pointers. How ever, for more info, you can refer to the boost library docs. Cheers Shared Memory in C 17 Years Ago by LightSystem … I need to put a whole array in a shared memory file (using POSIX). I have no problems …way: int main(int argc, char* argv[]){ ... int *ptr; ... int fd=shm_open("/shm12",O_RDWR|O_CREAT,S_IRUSR|…S_IWUSR); ... ftruncate(fd,sizeof(int)); ... ptr=mmap(0,11*sizeof(int),PROT_READ|PROT_WRITE,MAP_SHARED,fd,0… Re: Shared Memory in C 17 Years Ago by Ancient Dragon [URL="http://www.cs.cf.ac.uk/Dave/C/node27.html"]Here [/URL]are some examples Re: Shared Memory in C 17 Years Ago by LightSystem Thank you that helped understand it a little better. Re: design patterns using C++11 11 Years Ago by mike_2000_17 …it makes perfect sense. One of the required features of shared-ptr is to be able to share ownership of one object…), so, there needs to be mechanisms included within the shared-ptr implementation to keep track of the original raw-pointer type…an oddity, i.e., an artifact of the implementation of shared-ptr. And in any case, the existence of one way … Re: design patterns using C++11 11 Years Ago by triumphost …://stackoverflow.com/questions/4195691/to-use-shared-ptr-is-it-safe and http://stackoverflow.com/questions/3899790/shared-ptr-magic and even http://stackoverflow… Re: shared_ptr and variadic template 10 Years Ago by mike_2000_17 …new to allocate an object to pass to the shared-ptr: return shared_ptr<T>(new T(std::…lt;Args>(args)...)); in your make-shared function. But looking at your shared-ptr class, there are obvious problems: template…grounds on which to improve your implementation. Implementing a shared-pointer class correctly is a very tricky task, … Re: shared_ptr and variadic template 10 Years Ago by mike_2000_17 … as resolving issues like 1-8 above). For example, with shared-pointer, the "design" part is figuring out that… reference-count, that automatically deletes the pointer when the last shared-ptr is destroyed, that you might want it to be thread… Re: shared_ptr and variadic template 10 Years Ago by mike_2000_17 We need more detail. You say you are using a custom version of shared-ptr, and the error seems to be in that custom class. So, we need to see that code, otherwise there is really no way to tell where the error might come from. Change IP/Proxy 9 Years Ago by altjen …("kernel32.dll")> _ Private Shared Function GetLastError() As Integer End Function Public …) Marshal.FreeHGlobal(opts(2).pszValue) Marshal.FreeCoTaskMem(ptr) Return (bReturn) End Function Public Function DisableProxy… Smart Pointers 12 Years Ago by triumphost …, Buffer, dwHeader); pFile = (char*)((DWORD)pFile + jmpSize); //Smart ptr.. :S I'm confused.. std::shared_ptr<char[]> pMemory…: How do I assign to my ptr? Is is supposed to be shared or unique? I know unique uses …only one can owner can have the raw ptr. So I used shared since that's what the equal sign … Re: problem in my program in C( mikroC PRO V2.50) 15 Years Ago by bobyx …,14,rp2val);// 96 1508 [B]Implicit conversion of int to ptr t1x[/B].c // Thanks, [QUOTE=0x69;1213827]Error messages are… must use semaphores (mutex) to lock shared resources between threads in such a way, that shared resource is accessed by only 1… Re: problem in my program in C( mikroC PRO V2.50) 15 Years Ago by 0x69 … must use semaphores (mutex) to lock shared resources between threads in such a way, that shared resource is accessed by only 1… Doubt in threads locking and unlocking.. 17 Years Ago by Iqbal_h_a … #1: fun2() { lock(); writestring(ptr, pconfig); unlock(); } bool writestring(char *ptr, char *pconfig) { //this code should not be shared across threads. One thread… shmat at struct 15 Years Ago by mikabark … can't solve it yet. Will you help me? Using shared memory,I have to copy structure to second program. But…; srand(time(NULL)); struct work_list work_ll[10]; struct work_list *ptr; struct work_list *ptr1; ptr = &work_ll[0]; ptr1 = &work_ll[0]; for… GCC Fails to Recognize Parameters 1 Year Ago by snah19 …-L$DJGPP_PREFIX3/lib3" \ --enable-debug \ --disable-shared \ --enable-static \ --disable-doc \ --disable-programs… static const char *urlcontext_to_name(void *ptr) { URLContext *h = (URLContext *)ptr; if (h->prot) return… Re: Reverse a pointer to a set of integers 16 Years Ago by JpegUser This is likely what happens in my loop . . temp[49] = ptr[51] temp[50] = ptr[50] temp[51] = ptr[49] . . ptr[49] is actually referring to temp[49] since they are shared pointees. So it's almost the same like temp[51] = temp[49] temp[52] = temp[48] Sendmail error message cause by Reverse DNS mistake 17 Years Ago by musemaker … changed with my registrant. My external Host found that the PTR records had to be changed (and they probably had to… anyone here? I have root access (well, as far as shared virt hosting will allow) Thanks much in advance Kev from… Re: problem accessing a deque of pointers 10 Years Ago by Moschops …; i++ ) { *i ... ... Note that since SpriteList is a deque of shared pointers to sprite pointers, `*i` will give you a… shared pointer to a sprite pointer, so `(*(*i))` will give you … using pointers on VB6 1 Year Ago by cambalinho … VarPtrArray Lib "msvbvm60.dll" Alias "VarPtr" (Ptr() As Any) As Long Private Declare Sub CopyMemory Lib "… heres the code. some declarations can be different, so i shared what i use ;) Re: Zlob DNSchanger 15 Years Ago by aharrold …. . . : 86400 Data Length . . . . . : 4 Section . . . . . . . : Answer PTR Record . . . . . : localhost adunit.namiflow.com ---------------------------------------- Record Name . . . . . : adunit.namiflow.com…- C:\Program Files\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe O23 - Service… Re: problem in threading, using pthread 14 Years Ago by nezachem [CODE] pthread_create(&th[i], NULL, func_sort, (void*)arg1);[/CODE] You pass the same argument to all threads. Remember, that threads are running in the common address space, so a single copy of arg1 is shared among them. You need to create distinct individual arguments for each thread. Re: pass files , as argument of main() in Python 14 Years Ago by TrustyTony … *); int fclose(FILE *); unsigned fread(void *ptr, unsigned size, unsigned nobj, FILE *); unsigned fwrite(void *ptr, unsigned size, unsigned nobj, FILE *); void… Re: Starting " C " 18 Years Ago by ~s.o.s~ …/unix-c-libraries.html"] Building And Using Static And Shared "C" Libraries [/URL] [URL="http://users.actcom… Re: redirect output to memory 16 Years Ago by WaltP … accessible by another program. There is a concept called [I]shared memory[/I] that you might look into, but you still… Re: redirect output to memory 16 Years Ago by BITMAN2124 … all i/o. in my code, I want redirect to shared memory, so after I call CreateProcess and process exits I… Re: make_shared() 10 Years Ago by vijayan121 … `std::shared_ptr<T>(new T(args...))` of a shared pointer from the raw pointer returned by a call to… Re: my_config.h:506:16: error: multiple types in one declaration 11 Years Ago by Chrisadams …] && strchr("\r\n\t\0x20", *ptr); \ ptr--) \ *ptr= 0; \ errmsg= win_errormsg; \ } \ else \ errmsg… embedded library */ #undef HAVE_OPENSSL #undef HAVE_SMEM /* No shared memory */ #endif /* EMBEDDED_LIBRARY */ enum loglevel { ERROR_LEVEL…