关于内存管理,我有一个通用的问题
//In .h file I defined a property
@interface AClass
{
someClass *aProperty;
}
@property (nonatomic, retain) someClass *aProperty;
end
//In .m file I synthesized the property and also initialized the property
@implementation AClass
-(void)aMethod
{
self.aProperty = [[so
我有一个需要使用VB6 Com dll的ASP.NET Web项目。我有一个控制器,在那里我从com dll创建类的对象,并在我的操作中使用该对象。当我从大约2000-2500个线程调用该操作时,似乎一切都正常,但是当我从更多的线程运行它时,我在创建com对象实例时得到了这个错误:
Creating an instance of the COM component with CLSID from the IClassFactory failed due to the following error: 800401f7 (or 800a01b8).
我发现com组件在STA线程模式下运行,而AS
在我的代码中,我使用Val差尔查找任何内存泄漏,根据输出,仍然可以访问17个字节,1 alloc和0空闲:
==9413==
==9413== HEAP SUMMARY:
==9413== in use at exit: 17 bytes in 1 blocks
==9413== total heap usage: 1 allocs, 0 frees, 17 bytes allocated
==9413==
==9413== 17 bytes in 1 blocks are still reachable in loss record 1 of 1
==9413== at
我已经实现了pdf阅读器应用程序,其中我已经在UIScrollvew中加载了一个控制器,并在28 pagging show memory warning level 1之后实现了this functionality.Its working fine.But。我不知道内存leak.Please在哪里,请帮助我解决这个问题。提前谢谢。
我只是在c语言上做实验,你能回答我关于我写的程序的问题吗?
void main()
{
char *p,; // created a pointer pointing to string
p = (char *) malloc(50); // dynamically create 50 bytes.
strcpy(p, "this code is written about the dynamic allocation");
p += 20;
free(p);
}
现在谁能告诉我free(p)语句最后30个字节将被释放并用于未来内存分配
我是c++新手。
在过去的几天里,我一直在提高我的内存管理技能,根据valgrind的说法,我的程序不再泄漏内存。事实上,我根本没有从valgrind得到任何警告。
然而,当我将openmp循环添加到我的代码中时,我开始在valgrind (Memcheck)中得到以下错误:(但没有明确丢失的块)
==6417== 304 bytes in 1 blocks are possibly lost in loss record 3 of 4
==6417== at 0x4C279FC: calloc (vg_replace_malloc.c:467)
==6417== by 0x401
如果我在iOS7和iOS8上运行应用程序是可以的。当我在iOS6上运行时,我在我的设备日志中得到了这些错误。
Job appears to have crashed: Segmentation fault: 11
Application 'UIKitApplication:com.myapp.app[0x6f3e]' exited abnormally with signal 11: Segmentation fault: 11
libMobileGestalt copySystemVersionDictionaryValue: Could not lookup Relea